CN105120404B - A kind of audio frequency apparatus, terminal device and electronic equipment - Google Patents

Abstract

The embodiment of the invention discloses an audio device, a terminal device and an electronic device. The method in the embodiment of the present invention includes: a Type-C male head, a first speaker, and a first noise reduction microphone; the Type-C male head is coupled to the first noise reduction microphone through a first noise signal output pin, and through The first audio signal input pin is coupled to the first speaker; when the Type-C male plug is inserted into the Type-C female plug of the target device and electrically connected, the audio device outputs the first noise signal through the first noise signal output pin. The first noise signal collected by the noise reduction microphone is output to the target device, and the first audio signal obtained after the target device performs noise reduction processing according to the first noise signal is received through the first audio signal input pin, and the first audio signal transmitted to the first speaker. The embodiment of the present invention simplifies the structure of the noise reduction audio equipment, reduces the cost, and has a simple implementation scheme.

Description

A kind of audio equipment, terminal equipment and electronic equipment

technical field

The present invention relates to the field of electronic technology, in particular to audio equipment, terminal equipment and electronic equipment.

Background technique

At present, the three noise reduction measures commonly used to reduce noise are: noise reduction at the sound source, noise reduction during transmission, and noise reduction at the human ear. Among them, only noise reduction at the sound source is an active method. Its principle is : All sounds are composed of a certain frequency spectrum. If you find a sound whose spectrum is exactly the same as the noise to be eliminated, but the phase is just opposite (180° difference), you can completely cancel the noise. The key to this principle It is how to get the sound that cancels the noise. The actual method is: starting from the noise source itself, trying to reverse the phase of the original noise through electronic circuits, such as Active Noise Canceling (ANC) headphones.

Existing ANC earphones, in addition to the same playback speakers as ordinary earphones (for example, there is a microphone for talking/recording on the earphones for mobile phones), have added two noise-cancelling microphones on the left and right, and thus added Two signal lines; and the signal pins on the existing earphone interface have been used up, and the noise signal cannot be sent to the whole machine under the premise of ensuring the normal function of the earphone, so it is necessary to process the noise signal on the earphone side, for example, the The control chip for noise reduction (such as digital signal processing module, Digital signal processing, DSP) is built into the earphone; at the same time, it is also necessary to consider the power supply of the control (calculation) chip, such as the built-in battery, charging chip and charging interface, etc., in order to solve For the above problems, some currently use a dual-interface mode of earphone jack and USB interface (for charging or DSP communication); Charging chip and charging interface, and switches, comparators, analog-to-digital converters, etc. need to be added to the whole machine side;

In the above earphone noise reduction solutions, the collected noise signal is reversed on the earphone side to implement noise reduction. In this way, a control chip, built-in battery, charging chip, and charging interface need to be installed on the earphone side, which is costly and complicated to implement.

Contents of the invention

The embodiment of the present invention provides an audio device, a terminal device and an electronic device, which simplifies the structure of the noise reduction audio device, reduces the cost, and has a simple implementation scheme.

The first aspect of the embodiment of the present invention provides an audio device, including:

Type-C Type-C male, the first speaker and the first noise-canceling microphone;

The Type-C male head is coupled to the first noise reduction microphone through a first noise signal output pin, and is coupled to the first speaker through a first audio signal input pin;

The first noise reduction microphone is used to collect environmental noise to obtain a first noise signal;

When the Type-C male head is inserted into the Type-C female head of the target device and is electrically connected to the Type-C female head, the audio device outputs the first noise signal through the first noise signal output pin. outputting a noise signal to the target device, and receiving through the first audio signal input pin, a first audio signal obtained by the target device after performing noise reduction processing according to the first noise signal, and transmitting the first audio signal to the first speaker;

Wherein, the first noise signal output pin is at least one pin in the pin set on the Type-C male head; the first audio signal input pin is the pin set except the noise in the pin set At least one pin other than signal output pins; the set of pins includes D1+ pins, D2+ pins, D1-pins, D2- pins, VBUS pins, RX1+ pins specified in the Type-C interface protocol pin, RX1-pin, RX2+ pin, RX2-pin, TX1+ pin, TX1-pin, TX2+ pin, TX2-pin.

With reference to the first aspect of the embodiments of the present invention, in a first possible implementation manner of the first aspect of the embodiments of the present invention,

The identification pin of the Type-C male head is used to identify the target device, and the identification pin includes a CC1 pin and a CC2 pin specified according to the Type-C interface protocol;

The CC1 pin is connected to a first resistor and the other end of the first resistor is grounded, the CC2 pin is connected to a second resistor and the other end of the second resistor is grounded, wherein the first resistor and the The resistance values of the second resistors are different, and are all smaller than the resistance values of the preset resistors.

With reference to the first aspect or the first possible implementation manner of the first aspect of the embodiments of the present invention, in the second possible implementation manner of the first aspect of the embodiments of the present invention,

The first noise signal output pin is a pin in the set of pins; and the first audio signal input pin is one of the set of pins except the first noise signal output pin In the case of one pin outside;

Wherein, the first noise signal output pin and the first audio signal input pin are symmetrical to the geometric center of the Type-C male connector.

With reference to the first aspect or the first possible implementation manner of the first aspect of the embodiments of the present invention, in the third possible implementation manner of the first aspect of the embodiments of the present invention,

In the case where the first noise signal output pin includes at least: a first pin and a second pin, and the first audio signal input pin includes at least: a third pin and a fourth pin;

The first pin and the second pin are symmetrical to the geometric center of the Type-C male head, and the third pin and the fourth pin are relative to the Type-C male head. The geometric centers are center-symmetric, and the first pin is connected to the second pin, and the third pin is connected to the fourth pin.

With reference to the first aspect or the first possible implementation manner of the first aspect of the embodiments of the present invention, in the fourth possible implementation manner of the first aspect of the embodiments of the present invention,

The audio device also includes: a second speaker and a second noise reduction microphone;

The Type-C male head is coupled to the second noise reduction microphone through a second noise signal output pin, and is coupled to the second speaker through a second audio signal input pin;

The second noise reduction microphone is used to collect environmental noise to obtain a second noise signal;

When the Type-C male plug is inserted into the Type-C female plug and is electrically connected to the Type-C female plug, the audio device outputs the second noise signal through the second noise signal output pin. The noise signal is output to the target device, and, received through the second audio signal input pin, the second audio signal obtained by the target device after performing noise reduction processing according to the second noise signal, and the second audio signal is transmitted to the second speaker;

Wherein, the second noise signal output pin is at least one pin in the pin set, the second audio signal input pin is at least one pin in the pin set, and the first A noise signal output pin, the first audio signal input pin, the second noise signal output pin and the second audio signal input pin are different from each other.

With reference to the fourth possible implementation manner of the first aspect of the embodiments of the present invention, in the fifth possible implementation manner of the first aspect of the embodiments of the present invention,

In the case where the first noise signal output pin, the first audio signal input pin, the second noise signal output pin and the second audio signal input pin are all one pin;

The first noise signal output pin and the first audio signal input pin are symmetrical to the geometric center of the Type-C male head, and the second noise signal output pin and the second audio signal The input pin is symmetrical to the geometric center of the Type-C male head,

Or, the first noise signal output pin and the second noise signal output pin are symmetrical to the geometric center of the Type-C male head, and the first audio signal input pin and the second audio signal input pin The audio signal input pin is symmetrical to the geometric center of the Type-C male head,

Or, the first noise signal output pin and the second audio signal input pin are symmetrical to the geometric center of the Type-C male head, and the first audio signal input pin and the second audio signal input pin The noise signal output pin is symmetrical to the geometric center of the Type-C male head.

With reference to the fourth possible implementation manner of the first aspect of the embodiments of the present invention, in the sixth possible implementation manner of the first aspect of the embodiments of the present invention,

The first noise signal output pin includes a first pin and a second pin, the first audio signal input pin includes a third pin and a fourth pin, and the second noise signal output pin includes The fifth pin and the sixth pin, the second audio signal input pin includes the seventh pin and the eighth pin, the first pin is connected to the second pin, and the third pin connecting the fourth pin, connecting the fifth pin to the sixth pin, and connecting the seventh pin to the eighth pin;

Wherein, the first pin and the second pin are symmetrical to the geometric center of the Type-C male head, and the third pin and the fourth pin are relatively symmetrical to the Type-C male head. The geometric center of the head is symmetrical to the center; the fifth pin is symmetrical to the sixth pin relative to the geometric center of the Type-C male head, and the seventh pin is opposite to the eighth pin The geometric center of the Type-C male head is centrosymmetric;

And the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and The eighth pin is a different pin in the set of pins.

Combining the first aspect to the sixth possible implementation manner of the first aspect of the embodiments of the present invention, in the seventh possible implementation manner of the first aspect of the embodiments of the present invention,

The audio device also includes a voice microphone for collecting voice, and the Type-C male head is coupled to the voice microphone through a voice signal output pin; the voice signal output pin is specified according to the Type-C interface protocol. SBU1 pin or SBU2 pin;

When the Type-C male plug is inserted into the Type-C female plug and is electrically connected to the Type-C female plug, the voice microphone is used to collect voice, obtain a voice signal, and pass the voice signal The output pin outputs the voice signal to the target device, and when the target device responds to the received voice signal, the target device performs noise reduction processing on the voice signal according to the first noise signal .

With reference to the seventh possible implementation manner of the first aspect of the embodiments of the present invention, in the eighth possible implementation manner of the first aspect of the embodiments of the present invention,

In the case where the voice signal output pin is the SBU1 pin, the Type-C male head is coupled to the voice microphone through the SBU1 pin, and the SBU2 pin is connected to an analog ground;

In the case that the voice signal output pin is the SBU2 pin, the SBU2 pin is connected to the voice microphone, and the SBU1 pin is connected to an analog ground.

The second aspect of the embodiment of the present invention provides a terminal device, including a Type-C female head and an audio processing unit, and the audio processing unit is respectively coupled to the first noise signal input pin and the second noise signal input pin of the Type-C female head. an audio signal output pin;

When the Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, the audio processing unit receives the noise signal through the first noise signal input pin. The first noise signal transmitted by the target audio device; and according to the first noise signal, the first audio signal is obtained after noise reduction processing is performed on the first playback signal; and the first audio signal is output through the first audio signal output pin. outputting the first audio signal to the target audio device;

Wherein, the first noise signal input pin is at least one pin in the pin set on the Type-C female head; the first audio signal output pin is the pin set except the noise At least one pin other than signal output pins; the set of pins includes D1+ pins, D2+ pins, D1-pins, D2- pins, VBUS pins, RX1+ pins specified in the Type-C interface protocol pin, RX1-pin, RX2+ pin, RX2-pin, TX1+ pin, TX1-pin, TX2+ pin, TX2-pin.

With reference to the second aspect of the embodiments of the present invention, in a first possible implementation manner of the second aspect of the embodiments of the present invention,

The audio processing unit includes an audio processing module, a configuration channel CC logic module, and a control processing module for controlling the CC logic module, and the CC logic module is respectively connected to the audio processing module and the control processing module, so The CC logic module includes a CC1 port and a CC2 port;

The Type-C female head includes identification pins for identifying electronic devices connected to the Type-C female head, and the identification pins include CC1 pins and CC2 pins specified in the Type-C interface protocol;

The CC1 pin is connected to the CC1 port of the CC logic module, and the CC2 pin is connected to the CC2 port of the CC logic module;

The audio processing unit also includes a bus multiplexing module, which is connected to the first noise signal input pin, the first audio signal output pin, the audio processing module, and the control processing module respectively. module connection;

When an electronic device including a Type-C male head is inserted into the Type-C female head through the Type-C male head and electrically connected, the control processing module is used to identify the electronic device through the CC logic module. Whether the device is the target audio device;

The bus multiplexing module includes at least two transmission channels, and the at least two transmission channels include audio signal transmission channels and power output channels;

The control processing module is also used to switch the transmission channel of the bus multiplexing module to an audio signal transmission channel when it is determined that the electronic device is a target audio device, so that the audio processing module and the Type -Connection between female connectors of C;

In the case of communication between the audio processing module and the Type-C female head, the terminal device receives the first noise signal transmitted by the target audio device through the first noise signal input pin and transmits it to the Audio processing module;

The audio processing module is used to obtain a first audio signal after performing noise reduction processing according to the first noise signal; and output the first audio signal to the target audio device through the first audio signal output pin .

With reference to the first possible implementation manner of the second aspect of the embodiments of the present invention, in the second possible implementation manner of the second aspect of the embodiments of the present invention,

In the case that the electronic device including the Type-C male head is inserted into the Type-C female head through the Type-C male head, and is electrically connected with the Type-C female head, the control processing module is used to pass The CC logic module obtains the voltage value V _CC1 at the CC1 port, and judges whether the V _CC1 is within the first preset voltage value range, and if so, obtains the voltage value V _CC2 at the CC2 port through the CC logic module , when the V _CC2 is within a second preset voltage value range, determining that the electronic device is a target audio device;

Wherein, both the first preset voltage value range and the voltage values in the first preset voltage value range are greater than 0.

With reference to the second possible implementation manner of the second aspect of the embodiments of the present invention, in the third possible implementation manner of the second aspect of the embodiments of the present invention,

The control processing module is further configured to compare the V _CC1 and V _CC2 sizes after determining that the electronic device is the target audio device, and determine the target audio frequency according to the comparison result of the V _CC1 and V _CC2 sizes. The direction in which the Type-C male head of the device is inserted into the Type-C female head.

Combining the first possible implementation manner of the second aspect of the embodiment of the present invention to the third possible implementation manner of the second aspect, in the fourth possible implementation manner of the second aspect of the embodiment of the present invention,

The first noise signal input pin is a pin in the pin set; the first audio signal output pin is a pin in the pin set except the first noise signal input pin One pin, and the audio processing module includes an audio processing submodule and a first selection module, and the first selection module is connected to the bus multiplexing module and the audio processing submodule respectively;

The first noise signal input pin and the first audio signal output pin are centrosymmetric with respect to the geometric center of the Type-C female connector;

The Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, and the communication line between the audio processing sub-module and the bus multiplexing module, When matching the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing submodule receives the first noise signal transmitted by the target audio device through the first noise signal input pin. noise signal; and according to the first noise signal, the first audio signal is obtained after noise reduction processing is performed on the first playback signal, and the first audio signal is output to the first audio signal through the first audio signal output pin Describe the target audio device.

Combining the first possible implementation manner of the second aspect of the embodiment of the present invention to the third possible implementation manner of the second aspect, in the fifth possible implementation manner of the second aspect of the embodiment of the present invention,

The first noise signal input pin includes at least: a first pin and a second pin, and the first audio signal output pin includes at least: a third pin and a fourth pin; the first pin The second pin is centrosymmetric to the geometric center of the Type-C female head, and the third pin is centrosymmetric to the fourth pin relative to the geometric center of the Type-C female head, Moreover, the first pin is connected to the second pin, and the third pin is connected to the fourth pin.

Combining the first possible implementation manner of the second aspect of the embodiment of the present invention to the third possible implementation manner of the second aspect, in the sixth possible implementation manner of the second aspect of the embodiment of the present invention,

The audio processing unit is respectively coupled to the second noise signal input pin and the second audio signal output pin of the Type-C female head;

When the Type-C male head of the target audio device is inserted into the Type-C female head and is electrically connected to the Type-C female head, the audio processing unit receives the target signal through the second noise signal input pin. The second noise signal transmitted by the audio device is transmitted to the audio processing unit; the audio processing unit performs noise reduction processing on the second playback signal according to the second noise signal to obtain a second audio signal; and through the The second audio signal output pin outputs the second audio signal to the target audio device, and the first playback signal and the second playback signal are respectively the output of the audio file currently played by the terminal device. One of the original left channel signal or the original right channel signal;

Wherein, the second noise signal input pin is at least one pin in the pin set; the second audio signal output pin is at least one pin in the pin set, and the first A noise signal input pin, the first audio signal output pin, the second noise signal input pin and the second audio signal output pin are different from each other.

With reference to the sixth possible implementation manner of the second aspect of the embodiments of the present invention, in the seventh possible implementation manner of the second aspect of the embodiments of the present invention,

In the case where the first noise signal input pin, the first audio signal output pin, the second noise signal input pin and the second audio signal output pin are all one pin;

The audio processing module includes an audio processing submodule and a first selection module;

The first selection module is respectively connected to the bus multiplexing module and the audio processing sub-module;

After the control processing module determines the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing sub-module is used to control the first selection module and the audio processing The sub-module is connected in such a way that the connection line between the audio processing sub-module and the bus multiplexing module matches the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head;

The first noise signal input pin and the first audio signal output pin are symmetrical to the geometric center of the Type-C female head, and the second noise signal input pin and the second audio signal The output pin is symmetrical to the geometric center of the Type-C female head,

Or, the first noise signal input pin and the second noise signal input pin are symmetrical to the geometric center of the Type-C female connector, and the first audio signal output pin and the second audio signal output pin are symmetrical to each other. The audio signal output pin is symmetrical to the geometric center of the Type-C female head,

Or, the first noise signal input pin and the second audio signal output pin are symmetrical to the geometric center of the Type-C female connector, and the first audio signal output pin and the second audio signal output pin are symmetrical to each other. The noise signal input pin is symmetrical to the geometric center of the Type-C female connector.

With reference to the sixth possible implementation manner of the second aspect of the embodiments of the present invention, in the eighth possible implementation manner of the second aspect of the embodiments of the present invention,

The first noise signal input pin includes a first pin and a second pin, the first audio signal output pin includes a third pin and a fourth pin, and the second noise signal input pin includes The fifth pin and the sixth pin, the second audio signal output pin includes the seventh pin and the eighth pin, the first pin is connected to the second pin, and the third pin connecting the fourth pin, connecting the fifth pin to the sixth pin, and connecting the seventh pin to the eighth pin;

Wherein, the first pin and the second pin are symmetrical to the geometric center of the Type-C female connector, and the third pin and the fourth pin are relative to the Type-C female connector. The geometric center of the head is symmetrical to the center; the fifth pin is symmetrical to the sixth pin relative to the geometric center of the Type-C female head, and the seventh pin is opposite to the eighth pin The geometric center of the Type-C female head is centrosymmetric;

And the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and The eighth pin is a different pin in the set of pins.

Combining the second aspect to the eighth possible implementation manner of the second aspect of the embodiments of the present invention, in the ninth possible implementation manner of the second aspect of the embodiments of the present invention,

When the Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, the audio processing module is also used to receive the The voice signal input by the target audio device, and perform noise reduction processing on the voice signal according to the first noise signal, the voice signal is collected by the voice microphone of the target audio device, and the voice signal input pin includes The SBU1 pin or SBU2 pin specified by the Type-C interface protocol.

With reference to the ninth possible implementation manner of the second aspect of the embodiments of the present invention, in the tenth possible implementation manner of the second aspect of the embodiments of the present invention,

When the audio processing module includes an audio processing submodule and a first selection module, and the first selection module is respectively connected to the bus multiplexing module and the audio processing submodule;

The audio processing module also includes a second selection module, the second selection module is respectively connected to the audio processing unit and the analog ground; the second selection module is also connected to the voice signal input pin;

After the control processing module determines the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing sub-module is also used to control the second selection module and the audio Processing the connection mode of the sub-module, so that the connecting line between the audio processing sub-module and the voice signal input pin matches the Type-C male plug of the target audio device inserted into the Type-C female plug direction;

Wherein, in the case where the voice signal input pin is the SBU1 pin, the SBU1 pin is connected to the voice microphone, and the SBU2 pin is connected to an analog ground; when the voice signal input pin is In the case of the SBU2 pin, the SBU2 pin is connected to the voice microphone, and the SBU1 pin is connected to an analog ground.

The third aspect of the embodiment of the present invention provides an electronic device, including an audio device and a terminal device;

Wherein, the audio device is the audio device described in the first aspect, and the terminal device is the terminal device described in the second aspect or the first possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the first possible implementation of the first aspect, and the terminal device is the second possible implementation of the second aspect or the third possible implementation of the second aspect. terminal equipment,

or,

The audio device is the audio device described in the second possible implementation manner of the first aspect, and the terminal device is the terminal device described in the fourth possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the third possible implementation manner of the first aspect, and the terminal device is the terminal device described in the fifth possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the fourth possible implementation manner of the first aspect, and the terminal device is the terminal device described in the sixth possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the fifth possible implementation manner of the first aspect, and the terminal device is the terminal device described in the seventh possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the sixth possible implementation manner of the first aspect, and the terminal device is the terminal device described in the eighth possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the seventh possible implementation manner of the first aspect, and the terminal device is the terminal device described in the ninth possible implementation manner of the second aspect,

or,

The audio device is the audio device described in the eighth possible implementation manner of the first aspect, and the terminal device is the terminal device described in the tenth possible implementation manner of the second aspect.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

In the embodiment of the present invention, the Type-C interface is used as the connection channel between the noise reduction audio device and the electronic device, and the audio processing module for noise reduction processing is integrated in the electronic device, and the noise signal collected by the noise reduction microphone is passed through the Type The -C male head is transmitted to other equipment for signal processing, which simplifies the structure of the noise reduction audio equipment, reduces the cost, and is simple to implement.

Description of drawings

Fig. 1 is a schematic diagram of the definition of Type-C interface pins in the embodiment of the present invention;

Fig. 2 is a schematic diagram of an embodiment of a noise reduction earphone in the prior art in an embodiment of the present invention;

Fig. 3 is a schematic diagram of another embodiment of the noise reduction earphone in the prior art in the embodiment of the present invention;

FIG. 4 is a schematic diagram of an embodiment of an electronic device in an embodiment of the present invention;

FIG. 5 is a schematic diagram of an embodiment of an audio device in an embodiment of the present invention;

FIG. 6 is a schematic diagram of another embodiment of an audio device in an embodiment of the present invention;

Figure 6-1 is a schematic diagram of another embodiment of the audio device in the embodiment of the present invention;

Figure 6-2 is a schematic diagram of another embodiment of the audio device in the embodiment of the present invention;

FIG. 6-3 is a schematic diagram of another embodiment of the audio device in the embodiment of the present invention;

FIG. 7 is a schematic diagram of an embodiment of a terminal device in an embodiment of the present invention;

Fig. 8 is a schematic diagram of an identification device of a CC logic module in an embodiment of the present invention;

FIG. 9 is a schematic diagram of another embodiment of a terminal device in an embodiment of the present invention;

FIG. 10 is a schematic diagram of another embodiment of a terminal device in an embodiment of the present invention;

Fig. 11 is a schematic diagram of an audio processing module in another embodiment of the terminal device in the embodiment of the present invention;

Fig. 12 is a schematic diagram of another embodiment of the conversion interface in the embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides an audio device, a terminal device and an electronic device, which simplifies the structure of the noise reduction audio device, reduces the cost, and has a simple implementation scheme.

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second" and the like (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In order to facilitate the understanding of the embodiments of the present invention, several elements that will be introduced in the description of the embodiments of the present invention are first introduced here;

USB 3.1 is the latest USB specification. The data transmission speed of this specification can be increased to 10Gbps. Compared with USB 3.0 technology, the new USB technology uses a more efficient data encoding system and provides more than double the effective data throughput rate. It Fully backward compatible with existing USB connectors and cables.

USB3.1 has three connection interfaces, which are Type A (Type-A, also known as Standard-A), Type B (Type-B, also known as Micro-B) and Type C (Type-C). Type-C can also be called USB-C. It is a specification for a new type of USB cable and connector. It defines a whole new set of USB physical specifications including connectors, ports, containers, and cables. Type-C The -C interface includes two types of existence: Type-C male and Type-C female. In the Type-C interface protocol (that is, the protocol related to the Type-C interface in USB3.1), the Type-C interface pin Definition As shown in Figure 1, the Type-C interface (Type-C male or Type-C female) includes pins on both sides: A side and B side. In the figure, use the corresponding letters on both sides of the interface to add serial numbers below To describe a pin, the Type-C interface (Type-C male or Type-C female) includes: 4 GND pins (A1, A12, B1, B12), D1+ pin (A6), D2+ pin (B6), D1-pin (A7), D2-pin (B7), RX1+ pin (B11), RX1-pin (B10), RX2+ pin (A11), RX2-pin (A10), TX1+ pin (A2), TX1- pin (A3), TX2+ pin (B2), TX2- pin (B3), 4 VBUS pins (A4, A9, B4, B9), SBU1 pin (A8 ), SBU2 pin (B8), CC1 pin (A5), CC2 pin (B5), the geometric center of the Type-C male or Type-C female described in the embodiment of the present invention is, for example, the black in Figure 1 At this time, the pins with the same serial number on side A and side B are centrosymmetric with respect to the geometric center, for example, A8 and B8 are centrosymmetric with respect to the geometric center.

At present, since the ANC headset needs to be equipped with a noise reduction microphone to collect noise in addition to the normal playback speaker and microphone, it is impossible to send the noise signal to the whole machine side (the device that outputs the audio signal) under the premise of ensuring the normal function of the headset. Therefore, it is necessary to process the noise signal on the earphone side. As shown in Figure 2, a control chip for noise reduction (such as digital signal processing, DSP module) is built into the earphone; at the same time, the power supply of the control (calculation) chip Therefore, there is a built-in battery, charging chip and charging interface. In Figure 1, the dual interface mode of earphone interface and USB interface (for charging or DSP communication) is adopted. As shown in Figure 3, it is an ANC earphone launched by Huawei. It is similar to that in Figure 2, the difference is that there is no USB port on the earphone side, and the charging signal is multiplexed with the original earphone signal. On the whole machine side, identify whether the inserted earphone is a Huawei ANC earphone, if so, charge the earphone, if not Or when the headset is in use it is not charged. In the above earphone noise reduction solutions, the collected noise signal is reversed on the earphone side to implement noise reduction. In this way, a control chip, built-in battery, charging chip, and charging interface need to be installed on the earphone side, which is costly and complicated to implement.

Based on the above reasons, an audio device, a terminal device, and an electronic device are provided in an embodiment of the present invention. As shown in FIG. 4 , the electronic device includes an audio device on the right and a terminal device on the left, and the audio device includes a Type -C male head, the terminal device includes a Type-C female head, and the audio device outputs the noise output collected by the noise reduction microphone to the terminal device outputting the audio signal through the Type-C interface for noise processing, which simplifies the operation of the audio device The structure reduces the cost and conforms to the future development trend of electronic technology.

In the embodiment of the present invention, the audio device including the Type-C male head can be a headphone, ear-mounted, in-ear, or earphone, or other noise-reducing audio devices, such as noise reduction, etc., which will not be discussed here. limited.

In the embodiment of the present invention, the terminal equipment that includes the Type-C female head that matches the audio device can be an intelligent mobile terminal, such as a mobile phone, a tablet, etc. that include the Type-C female head, or an MP3 that includes the Type-C female head. MP4, MP5 and other audio electronic equipment are not limited here.

In the embodiment of the present invention, the audio device includes a Type-C Type-C male head, a first speaker, and a first noise reduction microphone;

The Type-C male head is coupled to the first noise reduction microphone through a first noise signal output pin, and is coupled to the first speaker through a first audio signal input pin;

The first noise reduction microphone is used to collect environmental noise to obtain a first noise signal;

When the Type-C male head is inserted into the Type-C female head of the target device and is electrically connected to the Type-C female head, the audio device outputs the first noise signal through the first noise signal output pin. outputting a noise signal to the target device, and receiving through the first audio signal input pin, a first audio signal obtained by the target device after performing noise reduction processing according to the first noise signal, and transmitting the first audio signal to the first speaker;

Wherein, the first noise signal output pin is at least one pin in the pin set on the Type-C male head; the first audio signal input pin is the pin set except the noise in the pin set At least one pin other than signal output pins; the set of pins includes D1+ pins, D2+ pins, D1-pins, D2- pins, VBUS pins, RX1+ pins specified in the Type-C interface protocol pin, RX1-pin, RX2+ pin, RX2-pin, TX1+ pin, TX1-pin, TX2+ pin, TX2-pin.

In the Type-C interface protocol standard, the Type-C male head includes identification pins for identifying electronic devices connected to the Type-C male head, and the identification pins include The CC1 pin and CC2 pin;

At the same time, in the Type C interface protocol standard, a positive/reverse insertion R1 for identifying the device is also specified, which is connected to the CC1 pin or the CC2 pin. According to the standard design, the value of R1 is 0 A value between ~Ra (Ra is the identification resistor used for Type C device identification in the Type C interface protocol standard, and its value is required to meet the specified range, specifically refer to the definition in the Type C specification); the embodiment of the present invention In the same way, the Type-C male head of the audio device in the embodiment of the present invention can also be set according to the Type-C interface protocol standard.

However, considering the subsequent development of technology, many new Type C interface devices may appear on the market in the future. If the pull-down resistance value of a new type of device is exactly the same as R1 in this solution, there will be "misidentifying the new type of device as the original device." Problems with the audio equipment in the embodiment of the invention", which causes misidentification at this time.

Therefore, as shown in Figure 5, the audio equipment in the embodiment of the present invention, as a preference, can set two resistors: the first resistor R1 and the second resistor R2, the CC1 pin is connected to the first resistor R1 and the first resistor The other end of the resistor R1 is grounded, the CC2 pin is connected to the second resistor R2 and the other end of the second resistor R2 is grounded, wherein the resistance values of the first resistor R1 and the second resistor R2 are different (such as a difference of 2 times order of magnitude), and are all smaller than the resistance value of the preset resistor, which is the identification resistor Ra used for Type C device identification in the Type C interface protocol standard, so the divided voltage values obtained in R1 and R2 are also different. It can assist device identification and improve the accuracy of device identification.

In the embodiment of the present invention, the audio device may be a single-speaker type, a dual-speaker type, or a multi-speaker type in some cases, which is not limited here.

In the embodiment of the present invention, when the audio device only includes the first speaker and the first noise reduction microphone, the audio device in the embodiment of the present invention is a single-speaker type.

In one case, the first noise signal output pin is a pin in the pin set; the first audio signal input pin is the first noise signal output pin in the pin set A pin other than the pin, that is, the first speaker is connected to a pin in the set of pins on the Type-C male head, and the first noise-canceling microphone is connected to the pin set on the Type-C male head. Another pin in the set of pins. For example, the first noise signal output pin is D1+ pin (A6), the first audio signal input pin is RX2+ pin (A11), etc., only need to ensure that the first noise signal output pin and the first audio signal The signal input pins may be different pins in the set of pins, and there is no limitation here.

At this time, the first noise signal output pin is a pin in the pin set, and the first audio signal input pin is except the first noise signal output pin in the pin set In the case of one pin, in order to achieve positive and negative insertion, the first noise signal output pin and the first audio signal input pin are centered relative to the geometric center of the Type-C male head Symmetrical, at this time, when the Type-C female connector of the terminal device also sets the corresponding pin connection relationship, regardless of whether the Type-C male connector is inserted forward or backward, the first audio signal input pin, the first noise signal The output pins can ensure normal circuit connection, but the signal output is reversed when plugged in reversely, and the corresponding signal channel switching needs to be done on the terminal side, so that the audio equipment can be used normally, such as the first noise signal output pin The pin is D1+ pin (A6), and the first audio signal input pin is D2+ pin (B6); or the first noise signal output pin is D1- pin (A7), and the first audio signal The signal input pin is the D2-pin (B7), which is not limited here.

In the case of a single speaker, the audio device in the embodiment of the present invention can also be:

In the case where the first noise signal output pin includes at least: a first pin and a second pin, and the first audio signal input pin includes at least: a third pin and a fourth pin;

The first pin and the second pin are symmetrical to the geometric center of the Type-C male head, and the third pin and the fourth pin are relative to the Type-C male head. The geometric centers are center-symmetric, and the first pin is connected to the second pin, and the third pin is connected to the fourth pin.

That is, at this time, the first pin and the second pin are connected to the first noise reduction microphone; the third pin and the fourth pin are connected to the first speaker; the The first pin and the second pin are any two pins in the set of pins, and the third pin and the fourth pin are output signals except the noise signal in the set of pins 2 pins other than pins;

When the Type-C male head is inserted into the Type-C female head of the target device and is electrically connected to the Type-C female head, the audio device passes the first pin and the second pin Outputting the first noise signal to the target device; receiving the first audio signal through the third pin and the fourth pin and transmitting to the first speaker.

Since the pins connected to the first noise-canceling microphone and the first speaker on the Type-C male head each have two pins that are symmetrical to the geometric center of the Type-C male head, therefore, no matter the Type-C male head The first audio signal input pin and the first noise signal output pin can normally input the first audio signal and output the first noise signal whether the plug is plugged forward or backward.

Optionally, the audio device in the embodiment of the present invention can also be a dual-speaker type, specifically, as shown in Figure 6:

The audio device also includes: a second speaker and a second noise reduction microphone;

The Type-C male head is coupled to the second noise reduction microphone through a second noise signal output pin, and is coupled to the second speaker through a second audio signal input pin;

The second noise reduction microphone is used to collect environmental noise to obtain a second noise signal;

When the Type-C male plug is inserted into the Type-C female plug and is electrically connected to the Type-C female plug, the audio device outputs the second noise signal through the second noise signal output pin. The noise signal is output to the target device, and, received through the second audio signal input pin, the second audio signal obtained by the target device after performing noise reduction processing according to the second noise signal, and the second audio signal is transmitted to the second speaker;

Wherein, the second noise signal output pin is at least one pin in the pin set, the second audio signal input pin is at least one pin in the pin set, and the first A noise signal output pin, the first audio signal input pin, the second noise signal output pin and the second audio signal input pin are different from each other.

For example, as shown in Figure 6-1, define the D1+ pin (A6) on the Type-C male connector of the audio device as the first audio signal input pin HSR, and define the D2+ pin on the Type-C male connector of the audio device as (B6) is defined as the first noise signal output pin M_R, the D1-pin (A7) on the audio device Type-C male is defined as the second audio signal input pin HSL, and the audio device Type-C male The D2- pin (B7) on is defined as the second noise output pin M_L.

In some audio device embodiments in the embodiments of the present invention, the first noise signal output pin, the first audio signal input pin, the second noise signal output pin and the second audio In the case where the signal input pins are all one pin in the set of pins;

The first noise signal output pin and the first audio signal input pin are symmetrical to the geometric center of the Type-C male head, and the second noise signal output pin and the second audio signal input pin are The feet are symmetrical to the geometric center of the Type-C male head,

Or, the first noise signal output pin and the second noise signal output pin are symmetrical to the geometric center of the Type-C male head, and the first audio signal input pin and the second audio signal The input pin is symmetrical to the geometric center of the Type-C male head,

Or, the first noise signal output pin and the second audio signal input pin are symmetrical to the geometric center of the Type-C male head, and the first audio signal input pin and the second noise signal input pin are symmetrical to each other. The output pin is symmetrical to the geometric center of the Type-C male connector.

In some embodiments of the audio equipment of the present invention, the first noise signal output pin includes a first pin and a second pin, and the first audio signal input pin includes a third pin and a fourth pin , the second noise signal output pin includes a fifth pin and a sixth pin, the second audio signal input pin includes a seventh pin and an eighth pin, and the first pin is connected to the a second pin, the third pin is connected to the fourth pin, the fifth pin is connected to the sixth pin, and the seventh pin is connected to the eighth pin;

Wherein, the first pin and the second pin are symmetrical to the geometric center of the Type-C male head, and the third pin and the fourth pin are relative to the geometric center of the Type-C male head. Symmetrical to the center; the fifth pin and the sixth pin are symmetrical to the geometric center of the Type-C male head, and the seventh pin and the eighth pin are relative to the Type-C male head. The geometric center is symmetrical to the center;

And the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and The eighth pin is a different pin in the set of pins.

Since the pins of the first noise reduction microphone, the first loudspeaker, the second noise reduction microphone, and the second speaker are connected to the Type-C male head, there are two symmetrical ones relative to the geometric center of the Type-C male head. Therefore, regardless of whether the Type-C male plug is plugged in or reversed, the first audio signal input pin and the second audio signal input pin can normally input audio signals, and the first noise signal output pin Both the noise signal output pin and the second noise signal output pin can output the noise signal.

In some embodiments of the audio equipment of the present invention, the audio equipment also includes a voice microphone for collecting voice, and the Type-C male head is coupled to the voice microphone through a voice signal output pin; the voice signal output The pin is the SBU1 pin or SBU2 pin specified in the Type-C interface protocol;

When the Type-C male plug is inserted into the Type-C female plug and is electrically connected to the Type-C female plug, the voice microphone is used to collect voice, obtain a voice signal, and pass the voice signal The output pin outputs the voice signal to the target device, and when the target device responds to the received voice signal, the target device performs noise reduction processing on the voice signal according to the first noise signal .

Wherein, optionally, in the case where the voice signal output pin is the SBU1 pin, the Type-C male head is coupled to the voice microphone through the SBU1 pin, and the SBU2 pin is connected to Analog ground; when the voice signal output pin is the SBU2 pin, the SBU2 pin is connected to the voice microphone, and the SBU1 pin is connected to an analog ground.

Taking a dual-speaker audio device as an example, as shown in Figure 6-2, a voice microphone is set on the basis of Figure 6-1, and the SUB1 pin (A8) on the Type-C male connector of the audio device is defined as a voice signal The output pin MIC defines the SUB pin (B8) on the Type-C male connector of the audio device as the ground pin analog ground AGND. The specific pin definition is shown in Table 1 below:

Table 1

pin standard definition new definition illustrate A5 CC1 CC1 Connect to DGND through resistor R1 for device detection and identification A6 D+ HSR Connect to the first speaker of the audio device A7 D- HSL A second speaker connected to an audio device A8 SBU1 Mic Voice microphone connected to audio device B5 CC2 CC2 Connect to DGND through resistor R2 for device detection and identification B6 D+ M_R Connect to the first noise-canceling microphone B7 D- M_L Connect to a second noise-canceling microphone B8 SBU2 AGND Connect to the public ground of the audio equipment, which is independent from the DGND of Type-C A1/B1/A12/B12 DGND DGND The digital ground DGND of Type-C is independent of the AGND of the terminal equipment Others see specifications NC Not in use, floating

As shown in Figure 6-3, the first noise signal output pin includes a first pin and a second pin, and the first audio signal input pin includes a third pin and a fourth pin, The second noise signal output pin includes a fifth pin and a sixth pin, the second audio signal input pin includes a seventh pin and an eighth pin, and the first pin is connected to the The second pin, the third pin is connected to the fourth pin, the fifth pin is connected to the sixth pin, and the seventh pin is connected to the eighth pin; the voice The signal output pin is the SBU1 pin, and the SBU1 pin is connected to the voice microphone, and the SBU2 pin on the Type-C male head is connected to the analog ground, the audio device in the embodiment of the present invention A specific example of .

In Figure 6-3, the D1+ pin (A6) and D2+ pin (B6) on the Type-C male connector of the audio device are defined as the first audio signal input pin HSR, and the Type-C male connector on the audio device is defined as the first audio signal input pin HSR. D1-pin (A7) and D2-pin (B7) are defined as the second audio signal input pin HSL, which defines the RX1+ pin (B11) and RX2+ pin (A11) on the audio device Type-C male For the first noise signal output pin M_R, define the RX1-pin (B10) and RX2-pin (A10) on the Type-C male head of the audio device as the second noise output pin M_L, where D1+ pin (A6) is connected to D2+ pin (B6), D1- pin (A7) is connected to D2- pin (B7), RX1+ pin (B11) is connected to RX2+ pin (A11), RX1- pin (B10 ) to the RX2- pin (A10).

At this time, regardless of whether the Type-C male plug of the audio device is plugged in or reversed, the first audio signal input pin and the second audio signal input pin can normally input audio signals, and the first noise signal output pin Both the pin and the second noise signal output pin can output noise signals.

The following describes the embodiment of the terminal device in the embodiment of the present invention.

The terminal device provided in the embodiment of the present invention includes a Type-C female head and an audio processing unit;

The Type-C female head includes a first noise signal input pin and a first audio signal output pin

The audio processing unit is respectively coupled to the first noise signal input pin and the first audio signal output pin of the Type-C female head (the first noise signal input pin and the first noise output pin of the audio equipment Correspondingly, the first audio signal output pin corresponds to the first noise input pin of the audio equipment);

When the Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, the audio processing unit receives the noise signal through the first noise signal input pin. The first noise signal transmitted by the target audio device; and according to the first noise signal, the first audio signal is obtained after noise reduction processing is performed on the first playback signal; and the first audio signal is output through the first audio signal output pin. outputting the first audio signal to the target audio device;

In this embodiment, the first playback signal may be one of the original left channel signal or the original right channel signal output by the audio file currently played by the terminal device. Due to the environment where the user uses the audio device, there is generally an environment Noise, the audio processing unit performs inversion processing on the first noise signal collected by the audio equipment side to obtain an inversion signal of the first noise signal, and superimposes the inversion signal of the first noise signal on the first playback signal Above, the first audio signal is output to the target audio device through the first audio signal output pin. At this time, when the first speaker on the audio device side plays the first audio signal, the first noise can be used to The anti-phase signal of the signal cancels the environmental noise where the user is located, and what the user hears is the original first playback signal (original left channel signal or right channel signal), realizing noise reduction.

Wherein, the first noise signal input pin is at least one pin in the pin set on the Type-C female head; the first audio signal output pin is the pin set except the noise At least one pin other than signal output pins; the set of pins includes D1+ pins, D2+ pins, D1-pins, D2- pins, VBUS pins, RX1+ pins specified in the Type-C interface protocol pin, RX1-pin, RX2+ pin, RX2-pin, TX1+ pin, TX1-pin, TX2+ pin, TX2-pin.

Corresponding to the audio device, in order to identify the audio device in the embodiment of the present invention, as shown in FIG. 7, in the terminal device in the embodiment of the present invention:

The audio processing unit includes an audio processing module, a configuration channel (English full name: ConfigurationChannel, English abbreviation: CC) logic module and a control processing module for controlling the CC logic module, and the CC logic module is respectively connected with the audio processing module. The module is connected to the control processing module, and the CC logic module includes a CC1 port and a CC2 port;

The Type-C female head includes identification pins for identifying electronic devices connected to the Type-C female head, and the identification pins include CC1 pins and CC2 pins specified in the Type-C interface protocol;

The CC1 pin is connected to the CC1 port of the CC logic module, and the CC2 pin is connected to the CC2 port of the CC logic module;

The audio processing unit also includes a bus multiplexing module, the bus multiplexing module is respectively connected to the first noise signal input pin, the first audio signal output pin, the audio processing module and the control processing module ;

When an electronic device including a Type-C male head is inserted into the Type-C female head through the Type-C male head and electrically connected, the control processing module is used to identify the electronic device through the CC logic module. Whether the device is the target audio device;

The bus multiplexing module includes at least two transmission channels, and the at least two transmission channels include audio signal transmission channels and power output channels;

The control processing module is also used to switch the transmission channel of the bus multiplexing module to an audio signal transmission channel when it is determined that the electronic device is a target audio device, so that the audio processing module and the Type -Connection between female connectors of C;

In the case of communication between the audio processing module and the Type-C female head, the terminal device receives the first noise signal transmitted by the target audio device through the first noise signal input pin and transmits it to the Audio processing module;

The audio processing module is used to obtain a first audio signal after performing noise reduction processing according to the first noise signal; and output the first audio signal to the target audio device through the first audio signal output pin .

In the Type-C interface protocol standard, the structure of the CC logic module is defined. In the Type-C interface protocol standard scheme, after the audio device is inserted into the terminal device, the CC1 pin and CC2 pin on the Type-C male head on the audio device side There is a pull-down resistor (such as R1) on only one channel, which identifies the positive/reverse insertion of the device;

In the embodiment of the present invention, in order to improve the accuracy of device identification, pull-down resistors R1 and R2 are respectively designed on the CC1 pin and CC2 pin on the Type-C male head on the audio device side (as described above on the audio device side, here No more details here), so the plug-in identification process of audio equipment needs to be redesigned;

Figure 8 is a schematic diagram of a terminal device identifying an audio device through a CC logic module when an electronic device including a Type-C male is inserted into the Type-C female through the Type-C male and electrically connected (for convenience It should be understood that FIG. 7 only shows a schematic diagram when the CC logic module of the terminal device is connected to the audio device).

In the case that the electronic device including the Type-C male head is inserted into the Type-C female head through the Type-C male head, and is electrically connected with the Type-C female head, the control processing module is used to pass The CC logic module obtains the voltage value V _CC1 at the CC1 port, and judges whether the V _CC1 is within the first preset voltage value range, and if so, obtains the voltage value V _CC2 at the CC2 port through the CC logic module , when the V _CC2 is within a second preset voltage value range, determining that the electronic device is a target audio device;

Since the CC1 pin and the CC2 pin on the Type-C male connector on the audio device side are respectively designed with pull-down resistors R1 and R2 with different resistance values, the voltage division values of the CC1 port and the CC2 port are also different, and are not It may be 0, therefore, the set first preset voltage value range and the voltage values in the first preset voltage value range are both greater than 0.

The control processing module is further configured to compare the V _CC1 and V _CC2 sizes after determining that the electronic device is the target audio device, and determine the target audio frequency according to the comparison result of the V _CC1 and V _CC2 sizes. The direction in which the Type-C male head of the device is inserted into the Type-C female head.

When the audio device side, the first noise signal output pin and the first audio signal input pin are symmetrical to the geometric center of the Type-C male head, the terminal device side can be set as follows:

The first noise signal input pin is a pin in the pin set; the first audio signal output pin is a pin in the pin set except the first noise signal input pin One pin, and the audio processing module includes an audio processing submodule and a first selection module, and the first selection module is connected to the bus multiplexing module and the audio processing submodule respectively;

The first noise signal input pin and the first audio signal output pin are centrosymmetric with respect to the geometric center of the Type-C female connector;

The Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, and the communication line between the audio processing sub-module and the bus multiplexing module, When matching the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing submodule receives the first noise signal transmitted by the target audio device through the first noise signal input pin. noise signal; and according to the first noise signal, the first audio signal is obtained after noise reduction processing is performed on the first playback signal, and the first audio signal is output to the first audio signal through the first audio signal output pin Describe the target audio device.

At this time, the bus multiplexing module includes two 2-to-1 selectors: a first selector and a second selector;

The selection module includes two 2-to-1 selectors: a third selector and a fourth selector;

The common end of the first selector is connected to the first audio signal output pin on the Type-C female head, and the common end of the second selector is connected to the first noise signal input of the Type-C female head pin;

The first selected end of the first selector is connected to the common end of the third selector, and the first selected end of the second selector is connected to the common end of the fourth selector;

The first selected end of the third selector is connected to the first audio signal output end of the audio processing sub-module, and the second selected end of the third selector is connected to the first noise of the audio processing sub-module. signal input;

The first selected end of the fourth selector is connected to the first noise signal input end of the audio processing sub-module, and the second selected end of the fourth selector is connected to the first audio signal input end of the audio processing sub-module. signal output;

When the control processing module determines that the electronic device including the Type-C male head is the target audio device, the control processing module adjusts the first selector and the second selector through the bus multiplexing module , so that the common end of the third selector communicates with the first noise signal input pin of the Type-C female head, and the common end of the fourth selector communicates with the first audio signal input pin of the Type-C female head. The signal output pin is connected;

The audio processing sub-module is used to respectively switch the third selector, the the transmission line of the fourth selector to match the line sequence of the target audio device;

The audio processing sub-module is specifically configured to receive the first noise signal transmitted by the target audio device through the first noise signal input terminal of the audio processing sub-module; generate a first noise inversion signal according to the first noise signal; The first noise anti-phase signal is superimposed on the first playback signal to obtain a first audio signal; and the first audio signal is output to the target through the first audio signal output terminal of the audio processing submodule For the audio device, in this embodiment, the first playback signal is the original audio signal of the left channel or the right channel that the audio device needs to output.

The following specific scenario is described as an example. As shown in FIG. 9, the first noise signal input pin and the first audio signal output pin are symmetrical to the geometric center of the Type-C female connector;

Define the D1+ pin (A6) on the Type-C female connector of the terminal device as the first audio signal output pin HSR, and define the D2+ pin (B6) on the Type-C female connector as the first noise signal input pin M_R;

The first selector and the second selector in the bus multiplexing module are two two-choice switches, the common end of the first selector is connected to HSR, the common end of the second selector is connected to M_R, and the first selector of the first selector is connected to M_R. The selected end is USB D+, the second selected end of the first selector is connected to the common end of the third selector MUX1, the first selected end of the second selector is connected to USB D-, and the second selected end of the second selector is connected to the common end of the third selector MUX1. The two selected ends are connected to the common end of the third selector MUX2, the first selected end of MUX1 is connected to the first audio signal output end of the audio processing sub-module, and the second selected end of MUX1 is connected to the audio processing The first noise signal input terminal of the sub-module.

The first selector and the second selector are fixed to select the respective first selected terminal or the second selected terminal at the same time, for example, when both the first selector and the second selector select the first selected terminal, that is, the bus complex Use the module to connect USB D+ and USB D-. At this time, the bus multiplexing module is the selected power output channel, and the terminal device charges the audio device through the Type-C female connector. When both the first selector and the second selector select the second The second selected end, that is, the audio signal transmission channel selected by the bus multiplexing module, connects the Type-C female head with the audio processing sub-module.

Specifically, when the control processing module determines that the electronic device including the Type-C male head is the target audio device, the control processing module controls the bus multiplexing module to adjust the first selection through the control signal func_sw device, the second selector, so that the common end of the third selector communicates with the first noise signal input pin M_R of the Type-C female head, and the common end of the fourth selector communicates with the The first audio signal output pin HSR of the Type-C female head is connected;

The audio processing sub-module is used to respectively switch the third selector, the The transmission line of the fourth selector matches the line sequence of the target audio device. For example, when the control processing module determines that the Type-C male head of the audio device is inserted into the Type-C female head of the terminal device, the second The three selectors and the fourth selector are the default forward connection mode, MUX1 selects the HSR signal transmission channel, and MUX selects the M_R signal transmission channel; when the control processing module determines that the Type-C male head of the audio device is inserted in the reverse direction When the Type-C female head of the terminal device is used, MUX1 selects the M_R signal transmission channel, and MUX selects the HSR signal transmission channel. At this time, it can be used normally regardless of whether the audio device is inserted in the forward direction or in the direction;

The audio processing sub-module is specifically configured to receive the first noise signal transmitted by the target audio device through the first noise signal input terminal of the audio processing sub-module; generate a first noise inversion signal according to the first noise signal; The first noise inversion signal is superimposed on the first audio signal to obtain the first audio signal; and the first audio signal is output to the target audio through the first audio signal output port of the audio processing submodule equipment.

When on the audio device side, the first noise signal output pin includes at least: a first pin and a second pin, and the first audio signal input pin includes at least: a third pin and a fourth pin; The first pin and the second pin are centered symmetrically with respect to the geometric center of the Type-C male head, and the third pin is centered with the fourth pin relative to the geometric center of the Type-C male head Symmetry, when the first pin is connected to the second pin, and the third pin is connected to the fourth pin;

Correspondingly, in some terminal device embodiments of the embodiments of the present invention, the first noise signal input pin at least includes: a first pin and a second pin, and the first audio signal output pin at least Including: a third pin and a fourth pin; the first pin and the second pin are symmetrical to the geometric center of the Type-C female head, and the third pin is symmetrical to the second pin The four pins are symmetrical to the geometric center of the Type-C female connector, and the first pin is connected to the second pin, and the third pin is connected to the fourth pin.

Since the pins on the Type-C female head of the terminal device use two pins that are symmetrical to the geometric center of the Type-C male head to complete the same function, no matter whether the Type-C male head is plugged in or reversed Both can realize the normal input of the first noise signal and the normal output of the first audio signal.

In the embodiment of the present invention, when the audio device is set with the first speaker and the second speaker, and the corresponding first noise reduction microphone and the second noise reduction microphone, correspondingly, in some embodiments of the present invention In an embodiment of the terminal device, the Type-C female head includes a second noise signal input pin and a second audio signal output pin, and the audio processing unit is respectively coupled to the second noise signal of the Type-C female head The input pin and the second audio signal output pin, the second noise signal input pin corresponds to the second noise output pin of the audio equipment, and the second audio signal output pin corresponds to the second noise input pin of the audio equipment .

When the Type-C male head of the target audio device is inserted into the Type-C female head and is electrically connected to the Type-C female head, the audio processing unit receives the target signal through the second noise signal input pin. The second noise signal transmitted by the audio device is transmitted to the audio processing unit; the audio processing unit performs noise reduction processing on the second playback signal according to the second noise signal to obtain a second audio signal; and through the The second audio signal output pin outputs the second audio signal to the target audio device, and the first playback signal and the second playback signal are respectively audio files currently played by the terminal device (can be Local audio files or network audio files) output the original left channel signal or the original right channel signal, for example, when the first playback signal is the original left channel signal, the second playback signal is the original right channel signal signal, similarly, when the first playback signal is the original right channel signal, the second playback signal is the original left channel signal;

Wherein, the second noise signal input pin is at least one pin in the pin set; the second audio signal output pin is at least one pin in the pin set, and the first A noise signal input pin, the first audio signal output pin, the second noise signal input pin and the second audio signal output pin are different from each other.

Further, in some embodiments of the terminal equipment of the invention, the first noise signal input pin, the first audio signal output pin, the second noise signal input pin and the second audio In the case where the signal output pins are all one pin in the set of pins;

The audio processing module includes an audio processing submodule and a first selection module;

The first selection module is respectively connected to the bus multiplexing module and the audio processing sub-module;

After the control processing module determines the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing sub-module is used to control the first selection module and the audio processing The sub-module is connected in such a way that the connection line between the audio processing sub-module and the bus multiplexing module matches the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head;

The first noise signal input pin and the first audio signal output pin are symmetrical to the geometric center of the Type-C female head, and the second noise signal input pin and the second audio signal output pin The feet are symmetrical to the geometric center of the Type-C female head,

Or, the first noise signal input pin and the second noise signal input pin are symmetrical to the geometric center of the Type-C female connector, and the first audio signal output pin and the second audio signal output pin are symmetrical to each other. The output pin is symmetrical to the geometric center of the Type-C female connector.

Or, the first noise signal input pin and the second audio signal output pin are symmetrical to the geometric center of the Type-C female connector, and the first audio signal output pin and the second noise signal output pin are symmetrical to each other. The input pin is symmetrical to the geometric center of the Type-C female connector.

Specifically, at this time, the bus multiplexing module includes four 2-to-1 selectors: a first selector, a second selector, a fifth selector, and a sixth selector;

The selection module includes four 2-to-1 selectors: a third selector, a fourth selector, a seventh selector and an eighth selector;

The common end of the first selector is connected to the first audio signal output pin on the Type-C female head, and the common end of the second selector is connected to the first noise signal input of the Type-C female head pin;

The first selected end of the first selector is connected to the common end of the third selector, and the first selected end of the second selector is connected to the common end of the fourth selector;

The first selected end of the third selector is connected to the first audio signal output end of the audio processing sub-module, and the second selected end of the third selector is connected to the first noise of the audio processing sub-module. signal input;

The first selected end of the fourth selector is connected to the first noise signal input end of the audio processing sub-module, and the second selected end of the fourth selector is connected to the first audio signal input end of the audio processing sub-module. signal output;

The common end of the fifth selector is connected to the second audio signal output pin on the Type-C female head, and the common end of the sixth selector is connected to the second noise signal input of the Type-C female head pin;

The first selected end of the fifth selector is connected to the common end of the seventh selector, and the first selected end of the sixth selector is connected to the common end of the eighth selector;

The first selected end of the seventh selector is connected to the second audio signal output end of the audio processing sub-module, and the second selected end of the seventh selector is connected to the second noise of the audio processing sub-module. signal input;

The first selected end of the eighth selector is connected to the second noise signal input end of the audio processing sub-module, and the second selected end of the eighth selector is connected to the second audio signal input end of the audio processing sub-module. signal output;

When the control processing module determines that the electronic device including the Type-C male head is the target audio device, the control processing module adjusts the first selector and the second selector through the bus multiplexing module , the fifth selector, and the sixth selector make the common end of the third selector communicate with the first noise signal input pin of the Type-C female head, and the fourth selector The common end communicates with the first audio signal output pin of the Type-C female head, the common end of the seventh selector communicates with the second noise signal input pin of the Type-C female head, and the first The common end of the eight selectors communicates with the second audio signal output pin of the Type-C female head;

The audio processing sub-module is used to respectively switch the third selector, the The transmission lines of the fourth selector, the seventh selector, and the eighth selector match the line sequence of the target audio device;

The audio processing sub-module is specifically configured to receive the first noise signal transmitted by the target audio device through the first noise signal input terminal of the audio processing sub-module; generate an inversion signal of the first noise signal according to the first noise signal ; Superimpose the inversion signal of the first noise signal on the first playback signal to obtain a first audio signal; and output the first audio signal through the first audio signal output port of the audio processing submodule to the target audio device.

The audio processing sub-module is specifically configured to receive the second noise signal transmitted by the target audio device through the second noise signal input terminal of the audio processing sub-module; generate an inverse signal of the second noise signal according to the second noise signal ; Superimpose the inversion signal of the second noise signal on the second playback signal to obtain a second audio signal; and output the second audio signal through the second audio signal output port of the audio processing submodule to the target audio device.

As shown in Figure 10, on the basis of the embodiment shown in Figure 9, the D1-pin (A7) on the Type-C female head of the terminal device is defined as the first audio signal output pin HSL, and the Type -The D2-pin (B7) on the C female is defined as the first noise signal input pin M_L;

HSR/M_R, HSL/M_L, M_R/HSR, M_L/HSL etc. on the connecting line of the right end of the bus multiplexing module and the left end of the audio processing module in Fig. 10 are connection relationships identified for convenience of understanding (similar in other embodiments) , indicating that the connection line marked HSR/M_R on the right end of the bus multiplexing module is connected to the connection line marked HSR/M_R on the left end of the audio processing module, and so on, the signal transmission situation when HSR/M_R is inserted forward and backward respectively.

The bus multiplexing module has increased two selectors: the fifth selector and the sixth selector, and the first selection module has increased two selectors: the seventh selector MUX3 and the eighth selector MUX4, Fig. 10 is in Fig. 9 Basically, two channels of signal processing (the second noise input signal and the second audio output signal) are processed, and the specific implementation process can refer to the embodiment shown in FIG. 9 , which will not be repeated here.

In some embodiments of the terminal device in the embodiments of the present invention, the first noise signal input pin includes a first pin and a second pin, and the first audio signal output pin includes a third pin and a The fourth pin, the second noise signal input pin includes a fifth pin and a sixth pin, and the second audio signal output pin includes a seventh pin and an eighth pin;

Wherein, the first pin and the second pin are symmetrical to the geometric center of the Type-C female head, and the third pin and the fourth pin are relative to the geometric center of the Type-C female head. Symmetrical to the center; the fifth pin and the sixth pin are symmetrical to the geometric center of the Type-C female head, and the seventh pin and the eighth pin are relative to the Type-C female head. The geometric center is symmetrical to the center;

And the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and The eighth pin is a different pin in the set of pins.

In some terminal device embodiments in the embodiments of the present invention, the Type-C female connector includes a voice signal input pin, and the voice signal input pin includes an SBU1 pin or an SBU2 pin specified in the Type-C interface protocol;

When the Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, the audio processing module is also used to receive the The voice signal input by the target audio device, and perform noise reduction processing on the voice signal according to the first noise signal, the voice signal is collected by the voice microphone of the target audio device, and the voice signal input pin includes The SBU1 pin or SBU2 pin specified by the Type-C interface protocol.

When the Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, when the user talks to other people through the audio device and the terminal device of the present invention, the terminal The device simultaneously receives the voice signal collected by the voice microphone of the audio device and the first noise signal collected by the first noise reduction microphone of the audio device, and the audio processing module performs noise reduction processing on the voice signal according to the first noise signal, which may be: audio The processing module generates an inverse signal of the first noise signal according to the first noise signal, and superimposes the received voice signal and the inverse signal of the first noise signal, thereby improving the call quality of the user.

Further, in some terminal device embodiments in the embodiments of the present invention, the audio processing module includes an audio processing sub-module and a first selection module, and the first selection module is connected with the bus multiplexing module and the In the case of audio processing sub-module connection;

The audio processing module also includes a second selection module, the second selection module is respectively connected to the audio processing unit and the analog ground; the second selection module is also connected to the voice signal input pin;

After the control processing module determines the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing sub-module is also used to control the second selection module and the audio Processing the connection mode of the sub-module, so that the connecting line between the audio processing sub-module and the voice signal input pin matches the Type-C male plug of the target audio device inserted into the Type-C female plug direction;

Wherein, in the case where the voice signal input pin is the SBU1 pin, the SBU1 pin is connected to the voice microphone, and the SBU2 pin is connected to an analog ground; when the voice signal input pin is In the case of the SBU2 pin, the SBU2 pin is connected to the voice microphone, and the SBU1 pin is connected to an analog ground.

As shown in Figure 11, it is a schematic structural diagram of the audio processing module of the terminal equipment. Two selectors MUX5 and MUX6 are added to the audio processing module. Similarly, the bus multiplexing module will also have two more selectors (not shown in the figure) can refer to the setting in the above embodiment), wherein, the public end of MUX5 is connected to the SUB1 pin (A8) on the Type-C female head of the terminal device, and the public end of MUX6 is connected to the SUB2 on the Type-C female head of the terminal device Pin (B8), the SUB1 pin (A8) on the Type-C female is defined as the voice signal input pin MIC, and the SUB2 pin (B8) is defined as the analog ground pin AGND. Others can refer to Figure 10. I won't repeat them here.

In some terminal device embodiments in the embodiments of the present invention, the second selection module includes two 2-to-1 selectors: a ninth selector and a tenth selector;

The common end of the ninth selector is connected to the audio processing sub-module, the first selected end of the ninth selector is connected to the SBU1 pin of the Type-C female head, and the first selected end of the ninth selector is connected to the SBU1 pin of the Type-C female head. The second selected end is connected to the SBU2 pin on the Type-C female head;

The common end of the tenth selector is connected to the audio processing sub-module, the first selected end of the tenth selector is connected to the SBU2 pin of the Type-C female head, and the first selected end of the tenth selector is connected to the SBU2 pin of the Type-C female head. The second selected end is connected to the SBU1 pin on the Type-C female head;

When the device is inserted and connected to the Type-C male head of the target audio device through the Type-C female head, the audio processing submodule is used to determine that the Type-C male head of the target audio device is inserted into the After the direction of the Type-C female head of the device is different from the preset direction, respectively switch the transmission lines of the ninth selector and the tenth selector to match the line sequence of the target audio device;

The audio processing sub-module is also configured to receive the voice signal input by the target audio device through the SBU1 pin of the Type-C female connector, and the voice signal is collected by the voice microphone of the target audio device.

In the embodiment of the present invention, the bus multiplexing module, the control processing module, the CC logic module, and the audio processing module can all be independent chips, or when the terminal device includes a system chip SOC, an integrated In the SOC, or multiple of the above-mentioned modules are integrated into one chip unit. In the embodiment of the present invention, DGND is an analog ground, which is a common reference ground of zero potential of digital circuits, and AGND is an analog ground, and is a common reference ground of zero potential of analog circuits.

An electronic device is also provided in an embodiment of the present invention, including an audio device and a terminal device, the audio device includes a Type-C male head, and the terminal device includes a Type-C female head; the audio device can be any of the above An audio device in any of the above cases; the terminal device may be a terminal device in any of the above cases.

At the same time, in order to allow the audio equipment provided in the embodiment of the present invention to be applied to a common 3.5mm headphone jack, the embodiment of the present invention also provides a conversion interface, which can use the Type-C female head on the conversion interface to connect the audio equipment to The USB Type-C plug is converted into a 3.5mm headphone plug, enabling the above audio devices to be used on devices with a 3.5mm headphone jack.

In the embodiment of the present invention, the device including the Type-C female head matched with the noise reduction audio device can also be an ordinary device with a headphone jack plugged into a conversion joint, and the conversion joint is a conversion joint between the headphone jack and the Type-C female head , then the ordinary device does not need to include the Type-C female head, it can be a mobile phone, a tablet, a smart watch, a laptop, etc. Other audio electronic equipment, such as other audio electronic equipment, can be connected to the noise reduction audio equipment with Type-C male through the above-mentioned conversion connector.

A conversion interface provided in an embodiment of the present invention, the conversion interface includes a Type-C female head and a headphone plug, and the Type-C female head is used to connect to the Type-C audio device in any of the above situations. male plug-in connection;

The Type-C female connector is used for connecting with the Type-C male connector of the audio device, and the earphone plug is used for connecting with the earphone socket of another electronic device.

In some embodiments of the present invention, the left channel pin of the earphone plug is connected to the first audio input pin on the Type-C male;

The right channel pin of the earphone plug is connected to the second audio input pin on the Type-C male;

The microphone pin of the earphone plug is connected to the SUB1 pin on the Type-C male head

The ground pin of the earphone plug is connected to the SUB2 pin on the Type-C male head;

The first audio input pin and the second audio input pin on the Type-C male head are the D1+ pin, D2+ pin, D1- pin, D2- pin, RX1+ pin, RX1- pin, RX2+ pin, RX2- pin, TX1+ pin, TX1- pin, TX2+ pin, TX2- pin, any two of the 4 VBUS pins .

At this time, the audio device with the conversion interface is used. Since the pins of the ordinary 3.5mm headphone interface are not enough, the noise signal collected by the noise reduction microphone of the audio device cannot be output to the terminal device inserted into the conversion interface. At this time, the audio device’s The noise reduction function is no longer available.

Wherein, the appearance surface of the Type-C female connector of the conversion interface may be provided with an identification component or an identification structure for identifying the forward and reverse of the Type-C female connector.

The earphone plug is a standard earphone plug of the Cellular Telecommunications & Internet Association (English abbreviation: CTIA) or an Open Mobile Terminal Platform Organization (English abbreviation: Open Mobile Terminal Platform, English abbreviation: OMTP) standard earphone plug.

As shown in Figure 12, taking the specific example where the 3.5mm headphone plug is a CTIA standard headphone plug as an example, connect the 3.5mm headphone plug of the conversion interface to D1 on the Type-C female head on the conversion interface from left to right. - Pin (A7), D1+ pin (A6), SBU2 pin (B8) and SBU1 pin (A8) are connected separately.

In the embodiment of the present invention, when the Type-C male plug of the audio device is inserted into the Type-C female plug of the conversion interface, the audio device in the embodiment of the present invention can realize the output of ordinary earphone signals.

It should be noted that in all the drawings of the embodiments of the present invention, the appearance structure of the audio device is only an example, and it can be in any shape under the condition of ensuring the circuit function. For example, the audio device can be a head-mounted type, an ear-mounted type, Earphones, earphones, or stereos of different sizes.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (21)

1. An audio equipment, characterized in that, comprising: Type-C Type-C male, the first speaker and the first noise-canceling microphone; The Type-C male head is coupled to the first noise reduction microphone through a first noise signal output pin, and is coupled to the first speaker through a first audio signal input pin; The first noise reduction microphone is used to collect environmental noise to obtain a first noise signal; When the Type-C male head is inserted into the Type-C female head of the target device and is electrically connected to the Type-C female head, the audio device outputs the first noise signal through the first noise signal output pin. outputting a noise signal to the target device, and receiving through the first audio signal input pin, a first audio signal obtained by the target device after performing noise reduction processing according to the first noise signal, and transmitting the first audio signal to the first speaker; Wherein, the first noise signal output pin is at least one pin in the pin set on the Type-C male head; the first audio signal input pin is the pin set except the noise in the pin set At least one pin other than signal output pins; the set of pins includes D1+ pins, D2+ pins, D1-pins, D2- pins, VBUS pins, RX1+ pins specified in the Type-C interface protocol pin, RX1-pin, RX2+ pin, RX2-pin, TX1+ pin, TX1-pin, TX2+ pin, TX2-pin. 2. The audio device of claim 1, wherein The identification pin of the Type-C male head is used to identify the target device, and the identification pin includes a CC1 pin and a CC2 pin specified according to the Type-C interface protocol; The CC1 pin is connected to a first resistor and the other end of the first resistor is grounded, the CC2 pin is connected to a second resistor and the other end of the second resistor is grounded, wherein the first resistor and the The resistance values of the second resistors are different, and are all smaller than the resistance values of the preset resistors. 3. The audio device according to claim 1 or 2, wherein the first noise signal output pin is a pin in the set of pins; and the first audio signal input pin In the case of a pin other than the first noise signal output pin in the set of pins; Wherein, the first noise signal output pin and the first audio signal input pin are symmetrical to the geometric center of the Type-C male connector. 4. Audio device according to claim 1 or 2, characterized in that, In the case where the first noise signal output pin includes at least: a first pin and a second pin, and the first audio signal input pin includes at least: a third pin and a fourth pin; The first pin and the second pin are symmetrical to the geometric center of the Type-C male head, and the third pin and the fourth pin are relative to the Type-C male head. The geometric centers are center-symmetric, and the first pin is connected to the second pin, and the third pin is connected to the fourth pin. 5. Audio device according to claim 1 or 2, characterized in that, The audio device also includes: a second speaker and a second noise reduction microphone; The Type-C male head is coupled to the second noise reduction microphone through a second noise signal output pin, and is coupled to the second speaker through a second audio signal input pin; The second noise reduction microphone is used to collect environmental noise to obtain a second noise signal; When the Type-C male plug is inserted into the Type-C female plug and is electrically connected to the Type-C female plug, the audio device outputs the second noise signal through the second noise signal output pin. The noise signal is output to the target device, and, received through the second audio signal input pin, the second audio signal obtained by the target device after performing noise reduction processing according to the second noise signal, and the second audio signal is transmitted to the second speaker; Wherein, the second noise signal output pin is at least one pin in the pin set, the second audio signal input pin is at least one pin in the pin set, and the first A noise signal output pin, the first audio signal input pin, the second noise signal output pin and the second audio signal input pin are different from each other. 6. The audio device of claim 5, wherein In the case where the first noise signal output pin, the first audio signal input pin, the second noise signal output pin and the second audio signal input pin are all one pin; The first noise signal output pin and the first audio signal input pin are symmetrical to the geometric center of the Type-C male head, and the second noise signal output pin and the second audio signal The input pin is symmetrical to the geometric center of the Type-C male head, Or, the first noise signal output pin and the second noise signal output pin are symmetrical to the geometric center of the Type-C male head, and the first audio signal input pin and the second audio signal input pin The audio signal input pin is symmetrical to the geometric center of the Type-C male head, Or, the first noise signal output pin and the second audio signal input pin are symmetrical to the geometric center of the Type-C male head, and the first audio signal input pin and the second audio signal input pin The noise signal output pin is symmetrical to the geometric center of the Type-C male head. 7. The audio device of claim 5, wherein The first noise signal output pin includes a first pin and a second pin, the first audio signal input pin includes a third pin and a fourth pin, and the second noise signal output pin includes The fifth pin and the sixth pin, the second audio signal input pin includes the seventh pin and the eighth pin, the first pin is connected to the second pin, and the third pin connecting the fourth pin, connecting the fifth pin to the sixth pin, and connecting the seventh pin to the eighth pin; Wherein, the first pin and the second pin are symmetrical to the geometric center of the Type-C male head, and the third pin and the fourth pin are relatively symmetrical to the Type-C male head. The geometric center of the head is symmetrical to the center; the fifth pin is symmetrical to the sixth pin relative to the geometric center of the Type-C male head, and the seventh pin is opposite to the eighth pin The geometric center of the Type-C male head is centrosymmetric; And the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and The eighth pin is a different pin in the set of pins. 8. The audio device according to any one of claims 1, 2, 6 or 7, wherein The audio device also includes a voice microphone for collecting voice, and the Type-C male head is coupled to the voice microphone through a voice signal output pin; the voice signal output pin is specified according to the Type-C interface protocol. SBU1 pin or SBU2 pin; When the Type-C male plug is inserted into the Type-C female plug and is electrically connected to the Type-C female plug, the voice microphone is used to collect voice, obtain a voice signal, and pass the voice signal The output pin outputs the voice signal to the target device, and when the target device responds to the received voice signal, the target device performs noise reduction processing on the voice signal according to the first noise signal . 9. The audio device of claim 8, wherein In the case where the voice signal output pin is the SBU1 pin, the Type-C male head is coupled to the voice microphone through the SBU1 pin, and the SBU2 pin is connected to an analog ground; In the case that the voice signal output pin is the SBU2 pin, the SBU2 pin is connected to the voice microphone, and the SBU1 pin is connected to an analog ground. 10. A terminal device, characterized in that it includes a Type-C female head and an audio processing unit, and the audio processing unit is respectively coupled to the first noise signal input pin and the first audio signal of the Type-C female head output pin; When the Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, the audio processing unit receives the noise signal through the first noise signal input pin. The first noise signal transmitted by the target audio device; and according to the first noise signal, the first audio signal is obtained after noise reduction processing is performed on the first playback signal; and the first audio signal is output through the first audio signal output pin. outputting the first audio signal to the target audio device; Wherein, the first noise signal input pin is at least one pin in the pin set on the Type-C female head; the first audio signal output pin is the pin set except the noise At least one pin other than signal output pins; the set of pins includes D1+ pins, D2+ pins, D1-pins, D2- pins, VBUS pins, RX1+ pins specified in the Type-C interface protocol pin, RX1-pin, RX2+ pin, RX2-pin, TX1+ pin, TX1-pin, TX2+ pin, TX2-pin. 11. The terminal device according to claim 10, characterized in that, The audio processing unit includes an audio processing module, a configuration channel CC logic module, and a control processing module for controlling the CC logic module, and the CC logic module is respectively connected to the audio processing module and the control processing module, so The CC logic module includes a CC1 port and a CC2 port; The Type-C female head includes identification pins for identifying electronic devices connected to the Type-C female head, and the identification pins include CC1 pins and CC2 pins specified in the Type-C interface protocol; The CC1 pin is connected to the CC1 port of the CC logic module, and the CC2 pin is connected to the CC2 port of the CC logic module; The audio processing unit also includes a bus multiplexing module, which is connected to the first noise signal input pin, the first audio signal output pin, the audio processing module, and the control processing module respectively. module connection; When an electronic device including a Type-C male head is inserted into the Type-C female head through the Type-C male head and electrically connected, the control processing module is used to identify the electronic device through the CC logic module. Whether the device is the target audio device; The bus multiplexing module includes at least two transmission channels, and the at least two transmission channels include audio signal transmission channels and power output channels; The control processing module is also used to switch the transmission channel of the bus multiplexing module to an audio signal transmission channel when it is determined that the electronic device is a target audio device, so that the audio processing module and the Type -Connection between female connectors of C; In the case of communication between the audio processing module and the Type-C female head, the terminal device receives the first noise signal transmitted by the target audio device through the first noise signal input pin and transmits it to the Audio processing module; The audio processing module is used to obtain a first audio signal after performing noise reduction processing according to the first noise signal; and output the first audio signal to the target audio device through the first audio signal output pin . 12. The terminal device according to claim 11, characterized in that, In the case that the electronic device including the Type-C male head is inserted into the Type-C female head through the Type-C male head, and is electrically connected with the Type-C female head, the control processing module is used to pass The CC logic module obtains the voltage value V _CC1 at the CC1 port, and judges whether the V _CC1 is within the first preset voltage value range, and if so, obtains the voltage value V _CC2 at the CC2 port through the CC logic module , when the V _CC2 is within a second preset voltage value range, determining that the electronic device is a target audio device; Wherein, both the first preset voltage value range and the voltage values in the first preset voltage value range are greater than 0. 13. The terminal device according to claim 12, wherein the control processing module is further configured to compare the V _CC1 and V _CC2 values after determining that the electronic device is the target audio device, according to the Determine the direction in which the Type-C male plug of the target audio device is inserted into the Type-C female plug based on the comparison result of the sizes of V _CC1 and V _CC2 . 14. The terminal device according to any one of claims 11 to 13, characterized in that, The first noise signal input pin is a pin in the pin set; the first audio signal output pin is a pin in the pin set except the first noise signal input pin One pin, and the audio processing module includes an audio processing submodule and a first selection module, and the first selection module is connected to the bus multiplexing module and the audio processing submodule respectively; The first noise signal input pin and the first audio signal output pin are centrosymmetric with respect to the geometric center of the Type-C female connector; The Type-C male head of the target audio device is inserted into the Type-C female head and electrically connected to the Type-C female head, and the communication line between the audio processing sub-module and the bus multiplexing module, When matching the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing submodule receives the first noise signal transmitted by the target audio device through the first noise signal input pin. noise signal; and according to the first noise signal, the first audio signal is obtained after noise reduction processing is performed on the first playback signal, and the first audio signal is output to the first audio signal through the first audio signal output pin Describe the target audio device. 15. The terminal device according to any one of claims 10 to 13, characterized in that, The first noise signal input pin includes at least: a first pin and a second pin, and the first audio signal output pin includes at least: a third pin and a fourth pin; the first pin The second pin is centrosymmetric to the geometric center of the Type-C female head, and the third pin is centrosymmetric to the fourth pin relative to the geometric center of the Type-C female head, Moreover, the first pin is connected to the second pin, and the third pin is connected to the fourth pin. 16. The terminal device according to any one of claims 11 to 13, wherein the audio processing unit is respectively coupled to the second noise signal input pin and the second audio signal output pin of the Type-C female head pin; When the Type-C male head of the target audio device is inserted into the Type-C female head and is electrically connected to the Type-C female head, the audio processing unit receives the target signal through the second noise signal input pin. The second noise signal transmitted by the audio device is transmitted to the audio processing unit; the audio processing unit performs noise reduction processing on the second playback signal according to the second noise signal to obtain a second audio signal; and through the The second audio signal output pin outputs the second audio signal to the target audio device, and the first playback signal and the second playback signal are respectively the output of the audio file currently played by the terminal device. One of the original left channel signal or the original right channel signal; Wherein, the second noise signal input pin is at least one pin in the pin set; the second audio signal output pin is at least one pin in the pin set, and the first A noise signal input pin, the first audio signal output pin, the second noise signal input pin and the second audio signal output pin are different from each other. 17. The terminal device according to claim 16, characterized in that, In the case where the first noise signal input pin, the first audio signal output pin, the second noise signal input pin and the second audio signal output pin are all one pin; The audio processing module includes an audio processing submodule and a first selection module; The first selection module is respectively connected to the bus multiplexing module and the audio processing sub-module; After the control processing module determines the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing sub-module is used to control the first selection module and the audio processing The sub-module is connected in such a way that the connection line between the audio processing sub-module and the bus multiplexing module matches the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head; The first noise signal input pin and the first audio signal output pin are symmetrical to the geometric center of the Type-C female head, and the second noise signal input pin and the second audio signal The output pin is symmetrical to the geometric center of the Type-C female head, Or, the first noise signal input pin and the second noise signal input pin are symmetrical to the geometric center of the Type-C female connector, and the first audio signal output pin and the second audio signal output pin are symmetrical to each other. The audio signal output pin is symmetrical to the geometric center of the Type-C female head, Or, the first noise signal input pin and the second audio signal output pin are symmetrical to the geometric center of the Type-C female connector, and the first audio signal output pin and the second audio signal output pin are symmetrical to each other. The noise signal input pin is symmetrical to the geometric center of the Type-C female connector. 18. The terminal device according to claim 16, characterized in that, The first noise signal input pin includes a first pin and a second pin, the first audio signal output pin includes a third pin and a fourth pin, and the second noise signal input pin includes The fifth pin and the sixth pin, the second audio signal output pin includes the seventh pin and the eighth pin, the first pin is connected to the second pin, and the third pin connecting the fourth pin, connecting the fifth pin to the sixth pin, and connecting the seventh pin to the eighth pin; Wherein, the first pin and the second pin are symmetrical to the geometric center of the Type-C female connector, and the third pin and the fourth pin are relative to the Type-C female connector. The geometric center of the head is symmetrical to the center; the fifth pin is symmetrical to the sixth pin relative to the geometric center of the Type-C female head, and the seventh pin is opposite to the eighth pin The geometric center of the Type-C female head is centrosymmetric; And the first pin, the second pin, the third pin, the fourth pin, the fifth pin, the sixth pin, the seventh pin and The eighth pin is a different pin in the set of pins. 19. The terminal device according to any one of claims 11, 12, 13 or 17, wherein the Type-C male head of the target audio device is inserted into the Type-C female head and connected to the Type-C In the case of a female electrical connection, the audio processing module is further configured to receive the voice signal input by the target audio device through the voice signal input pin, and perform noise reduction processing on the voice signal according to the first noise signal , the voice signal is collected by the voice microphone of the target audio device, and the voice signal input pin includes the SBU1 pin or SBU2 pin specified in the Type-C interface protocol. 20. The terminal device according to claim 19, characterized in that, When the audio processing module includes an audio processing submodule and a first selection module, and the first selection module is respectively connected to the bus multiplexing module and the audio processing submodule; The audio processing module also includes a second selection module, the second selection module is respectively connected to the audio processing unit and the analog ground; the second selection module is also connected to the voice signal input pin; After the control processing module determines the direction in which the Type-C male head of the target audio device is inserted into the Type-C female head, the audio processing sub-module is also used to control the second selection module and the audio Processing the connection mode of the sub-module, so that the connecting line between the audio processing sub-module and the voice signal input pin matches the Type-C male plug of the target audio device inserted into the Type-C female plug direction; Wherein, in the case where the voice signal input pin is the SBU1 pin, the SBU1 pin is connected to the voice microphone, and the SBU2 pin is connected to an analog ground; when the voice signal input pin is In the case of the SBU2 pin, the SBU2 pin is connected to the voice microphone, and the SBU1 pin is connected to an analog ground. 21. An electronic device, characterized in that it includes an audio device and a terminal device; Wherein, the audio device is the audio device described in claim 1, and the terminal device is the terminal device described in claim 10 or 11, or, The audio device is the audio device according to claim 2, the terminal device is the terminal device according to claim 12 or 13, or, The audio device is the audio device according to claim 3, the terminal device is the terminal device according to claim 14, or, The audio device is the audio device according to claim 4, the terminal device is the terminal device according to claim 15, or, The audio device is the audio device according to claim 5, the terminal device is the terminal device according to claim 16, or, The audio device is the audio device according to claim 6, the terminal device is the terminal device according to claim 17, or, The audio device is the audio device according to claim 7, the terminal device is the terminal device according to claim 18, or, The audio device is the audio device according to claim 8, the terminal device is the terminal device according to claim 19, or, The audio device is the audio device according to claim 9, and the terminal device is the terminal device according to claim 20.