CN212034334U - Audio equipment - Google Patents

Abstract

The utility model provides an audio device, including earphone subassembly and microphone subassembly that the mutual separation set up, the microphone subassembly includes microphone subassembly body, and sets up microphone and control circuit in microphone subassembly body, the microphone subassembly has the sound insulation structure that can cooperate the human face to form the enclosure space, when using the microphone gathers the sound signal that the user sent in the enclosure space of sound insulation structure; the earphone component at least comprises a left earphone, a right earphone and a control circuit; the control circuits of the microphone assembly and the earphone assembly are respectively provided with a communication unit, and based on the communication units, the microphone assembly transmits sound signals collected by a microphone to the earphone assembly or forwards far-end audio signals from external equipment to the earphone assembly. Compared with the prior art, the utility model discloses it is more convenient to use, and it is better to have syllable-dividing effect and tone quality.

Description

Audio equipment

Technical Field

The utility model relates to an audio acquisition and broadcast technical field especially relate to an audio equipment.

Background

Since the electronic device such as a microphone can collect ambient sound signals and is used to realize functions such as remote transmission, voice recognition or loud-speaking and broadcasting, it is widely used in various specific scenes and devices in people's production and life. Typical applications include: the voice call is realized through a microphone of the mobile phone, and the voice recognition, the access control and the like are realized through a microphone of the access control system. However, in many specific situations, the speech sound of people is rather annoying. For example, in a conference site, a library or some private place, where a quiet environment needs to be maintained, it is inconvenient to use a microphone for voice call. And in some cases, information that needs to be kept secret also needs to be protected from eavesdropping by other people. In addition, if the user talks in a noisy environment, the ambient noise often affects the quality of the conversation, so that the opposite party can not hear the user's speech. Moreover, the environmental sound is transmitted to the other party of the call, so that the other party can easily judge the environment of the user, which is not beneficial to the privacy protection of the user.

However, the microphone devices that people use in daily life are often embedded in various other electronic devices, such as a headset embedded inside a mobile phone, embedded in a headset cable, embedded in a wireless headset. Such microphones attached to other electronic devices cannot be designed solely for sound isolation. Professional microphones with sound insulation design, such as microphones with sound-absorbing covers in sound-recording studios, cannot enter people's daily life environment because they require special cables and are inconvenient to carry.

Therefore, there is a need to provide an audio device that is more convenient to use, so as to solve the above technical drawbacks.

Disclosure of Invention

In view of this, the present invention provides an audio device with more convenient use.

To achieve the above object, the present invention provides an audio device, comprising an earphone assembly and a microphone assembly separately disposed from each other,

the microphone assembly comprises a microphone assembly body, a microphone and a control circuit, wherein the microphone and the control circuit are arranged in the microphone assembly body;

the earphone component at least comprises a left earphone, a right earphone and a control circuit;

the control circuits of the microphone assembly and the earphone assembly are respectively provided with a communication unit, and based on the communication units, the microphone assembly transmits sound signals collected by a microphone to the earphone assembly or forwards far-end audio signals from external equipment to the earphone assembly.

Further, the control circuit of the microphone assembly may further include a signal processing unit; the signal processing unit is electrically connected with the communication unit, and is used for adjusting a frequency spectrum curve of a sound signal collected by the microphone and outputting the adjusted sound signal through the communication unit of the microphone assembly; or,

the control circuit of the earphone component can further comprise a signal processing unit, the signal processing unit is electrically connected with the communication unit of the earphone component, the signal processing unit adjusts a frequency spectrum curve of a sound signal from the microphone component, and the adjusted sound signal is transmitted outwards through the communication unit of the earphone component or is played through a left earphone microphone and/or a right earphone microphone of the earphone component.

Furthermore, an induction unit can be arranged on the microphone assembly body and electrically connected with the control circuit;

the sensing unit is used for detecting the using state of the microphone assembly and generating a first sensing signal when the microphone assembly is detected to be used, and the control circuit turns on the microphone when detecting the first sensing signal; the sensing unit generates a second sensing signal when detecting that the microphone assembly is idle, and the control circuit closes the microphone when detecting the second sensing signal.

Further, the communication unit of the microphone assembly may include an earphone connection unit, the communication unit of the earphone assembly includes a microphone connection unit, the earphone assembly and the microphone assembly are connected to the microphone connection unit through the earphone connection unit in a wired manner, and based on the wired connection, the earphone assembly receives a local audio signal acquired by a microphone of the microphone assembly, and/or the earphone assembly receives a far-end audio signal forwarded by the microphone assembly from an external device;

and the control circuit of the earphone component controls the left microphone and/or the right microphone to play the far-end audio signal and/or the local audio signal.

Further, the communication units of the microphone assembly and the earphone assembly may each include a wireless communication unit, and based on the wireless communication units, the microphone assembly and the earphone assembly establish a wireless communication connection;

based on the wireless communication connection, the earphone component receives a local audio signal acquired by a microphone of the microphone component, and/or the earphone component receives a far-end audio signal forwarded by the microphone component and coming from an external device;

and the control circuit of the earphone component controls the left microphone and/or the right microphone to play the far-end audio signal and/or the local audio signal.

Further, the microphone assembly and/or the earphone assembly may communicate with the external device based on the communication unit thereof to receive a far-end audio signal from the external device and/or transmit a local audio signal to the external device.

Further, the left earphone microphone and the right earphone microphone of the earphone component can be of a split structure;

the left headset and the right headset are both provided with control circuits, and the control circuits both comprise wireless communication units,

the left headset and the right headset perform wireless communication in a master-slave structure or a peer-to-peer structure based on the wireless communication unit.

Further, one or more wired transmission interfaces may be disposed on the microphone assembly and/or the earphone assembly, and are used for performing wired data transmission with one or more external devices.

Preferably, the microphone device further comprises a second microphone assembly, wherein the second microphone assembly is a microphone assembly without the sound insulation structure and comprises an earphone connecting unit, a microphone and a connecting piece for electrically connecting the earphone connecting unit and the microphone;

the second microphone assembly is electrically connected with the microphone connecting unit of the earphone assembly through the earphone connecting unit and transmits the sound signal collected by the microphone to the earphone assembly.

Preferably, the microphone assembly has a sound insulation structure that can cooperate with a human face to form a closed space, and specifically may include:

the microphone assembly body is a cover body with a concave cavity inside, the opening part of the concave cavity has a shape at least conforming to the characteristics of the oral cavity area of a human body, and when the opening part is covered on the oral cavity area of the human body, a closed space is formed in the concave cavity;

the opening part of the concave cavity is provided with a voice isolating coil,

a sound insulation layer is arranged in the concave cavity,

the microphone is arranged on the side wall of the concave cavity.

The utility model provides a technical scheme has for prior art can effectively give sound insulation, convenient to use, application range are wide, sound quality is high and can protect a great deal of advantages such as privacy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an audio device provided in embodiment 1 of the present invention;

fig. 2 is a schematic perspective exploded view of a microphone assembly provided in embodiment 1 of the present invention;

fig. 3 is a schematic circuit schematic structural diagram of an audio device provided in embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of an audio device provided in embodiment 2 of the present invention;

fig. 5-1 is a schematic diagram of a first circuit schematic structure of an audio device provided in embodiment 2 of the present invention;

fig. 5-2 is a schematic diagram of a second circuit schematic structure of the audio device provided in embodiment 2 of the present invention;

fig. 6 is a schematic structural diagram of an audio device provided in embodiment 3 of the present invention;

fig. 7 is a schematic circuit schematic structure diagram of an audio device provided in embodiment 3 of the present invention;

fig. 8 is a schematic circuit schematic structure diagram of an audio device provided in embodiment 4 of the present invention;

fig. 9 is a schematic structural diagram of an audio device provided in embodiment 5 of the present invention;

fig. 10 is a schematic circuit schematic structural diagram of an audio device provided in embodiment 5 of the present invention;

fig. 11 is a schematic structural diagram of an audio device according to embodiment 6 of the present invention;

fig. 12 is a schematic structural diagram of another audio device provided in embodiment 6 of the present invention.

Detailed Description

The technical solution of the present invention is further exemplarily described below by the accompanying drawings and the embodiments. It is clear that the described embodiments are only a part of the embodiments of the present application, and not an exhaustive list of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Example 1:

as shown in fig. 1, the present embodiment provides an audio device having at least a microphone assembly 100; the microphone assembly 100 has a sound insulation structure that can form a closed space in cooperation with a human face.

The microphone assembly 100 at least includes a microphone assembly body 110, and a microphone and a control circuit (not shown) disposed in the microphone assembly body 110.

The microphone assembly body 110 is designed as a cover with a concave cavity inside, and the overall shape of the microphone assembly body 110 can be various, such as a sphere, a column, a table, various cartoon shapes, or various shapes suitable for being held or worn, such as a hand-held microphone shape, an ear-hung mask shape, and the like.

The surface of the mask that contacts at least the oral area of the face is referred to herein as the face-contacting surface 120, and the cavity has a cavity therein adapted for opening and closing movements of the person's mouth and for producing sounds. The face contact surface 120 of the mask body, or at least the opening of the cavity, has a shape at least conforming to the characteristics of the oral cavity area of the human body, which may be saddle-shaped as shown in fig. 1, or may be other shapes such as bell mouth shape, oval shape, etc. Therefore, when the mask body is used, the face contact surface 120 of the mask body or at least the opening part of the concave cavity can be covered on the oral cavity area of a person, so that the mask body can be attached to the face and at least cover the oral cavity area. Of course, there are many variations of this covering method, for example, the opening of the cavity is integrated with the face contact surface 120 of the mask body, or the opening of the cavity is recessed in the face contact surface 120 of the mask body, and the attachment of the opening to the face is completed through the face contact surface 120 of the mask body; even the opening of the cavity may be designed to fit the face by other means, such as a sound guide tube, a sound-insulating cushion, a voice coil, etc., with substantially the same or similar effect as the aforementioned fitting of the opening of the cavity to the face, and thus will be referred to herein as "the opening of the cavity covers the oral area of the person and fits the face, at least covering the oral area". These variants are also intended to be within the scope of protection of the present application.

The opening part of the cavity is provided with sound insulation members such as a voice coil and a sealing ring, or the opening part of the cavity is made of sound insulation materials.

The cavity of the cavity can also adopt a sound insulation design, including but not limited to a sound insulation layer, a sound insulation cover, a sound insulation cabin, a sound insulation pad and the like. For example, a sound insulation layer made of a sound insulation material is provided on an inner surface of the cavity, or the cavity is a sound insulation cabin made of a sound insulation material.

In addition, the cover body can also be made of sound insulation material.

Separate voice coil loudspeaker voice coil, give sound insulation storehouse, puigging, sound-proof housing, sound insulating pad, the cover body etc. all can adopt soundproof material that soundproof cotton, silica gel etc. can completely cut off sound to make. For example, the sound insulation bin or the cover body is made of stainless steel or hard silica gel materials, so that the sound insulation bin or the cover body has compression-resistant and sound insulation effects; the voice coil isolating ring or the sound insulating layer is made of relatively soft sound insulating materials such as sound insulating cotton and soft silica gel, can generate various deformations to adapt to contact surfaces of different shapes, particularly can increase the tightness degree when the opening of the cavity is attached to a face, and enhances the sound insulating effect.

The microphone and the control circuit can be arranged in the cavity of the concave cavity, and the microphone is tightly combined with the cavity so as to collect sound signals in the cavity of the concave cavity.

The cavity can be internally provided with various existing or future silencing materials, silencing structures or silencing devices such as a silencing layer, a silencing pipe, a silencing bin and the like. For example, the inner surface of the cavity 220 is covered with at least one layer of sound-deadening material, so that the sound in the cavity can be absorbed by the sound-deadening material, and thus, the echo caused by multiple reflections of the sound in the cavity can be reduced.

As a preferred embodiment, the microphone assembly body or the sound insulation member can be made of an environment-friendly material, such as food-grade silica gel, nanofiber, and the like.

Fig. 2 shows a preferred embodiment of the microphone assembly 100 in this embodiment. As shown in fig. 2, the microphone assembly body 110 is provided with a voice coil 210, an acoustic isolation layer 230, and a microphone 240, and fig. 2 is also illustrated in a perspective view for the purpose of explaining the internal structure of the cavity 250.

A cavity 250 is formed in the microphone assembly body 110 by recessing the top surface of the microphone assembly body inwards, and the microphone 240 is disposed in the cavity 250. Preferably, the microphone assembly 240 is disposed on a sidewall of the cavity. As another preferred mode, at least one through hole 260 is further formed in the cavity 250 of the microphone assembly, and air flow can be circulated between the inside and the outside of the cavity through the through hole 260.

The soundproof layer 230 is made of soundproof material or noise deadening material and is disposed in the cavity 250. The soundproof layer 230 may be designed to have soundproof effect, such as soundproof cotton having a shape matching with the cavity of the cavity, a soundproof pad filling the cavity of the cavity 250, or a soundproof pad covering the inner wall of the cavity 250, and as shown in fig. 2, the surface of the soundproof layer 230 may be designed to have a wave shape, and the soundproof effect is enhanced by a protrusion thereof.

The voice coil 210 is arranged at the opening part of the top surface of the concave cavity, the voice coil 210 has a shape conforming to the characteristics of the oral cavity area of a human body, and the voice coil can be well attached to a human face when being covered on the oral cavity part. Optionally, a sealing ring 220 may be provided, such that the sound-insulating effect between the sound-insulating ring 210 and the cavity is further enhanced by the sealing ring 220.

When the voice isolation ring is used, the voice isolation ring 210 covers the mouth, at the moment, the sound isolation ring 210 and the cavity 250 form a closed space, so that the voice isolation ring is suitable for the free opening and closing of the mouth of a person, speaking or singing, meanwhile, the microphone 240 collects sound waves, and the sound isolation layer 230 plays a role in isolating sound wave transmission, absorbing redundant sound waves and eliminating echo. Accordingly, the sound insulation structure of the cavity 250 is designed to form a good sound transmission isolation environment in the cavity of the cavity when the microphone assembly is used, and internal sound transmission and external sound transmission are blocked. This will create a very clean and private sound producing environment for the user. For example, when a user uses the microphone assembly of the embodiment to communicate with a far-end, the sound of the user is not or rarely leaked out of the cavity and can not be heard by people around the user, so that the user does not interfere with other people and has good communication confidentiality; meanwhile, the sound of the environment where the remote conversation party is located cannot be transmitted into the cavity, the sound collected by the microphone 120 is only the voice sent by the user, and the sound heard by the remote conversation party is very clean, so that the conversation cannot be interfered by the surrounding environment, the environment where the user is located cannot be judged because the remote conversation party cannot know the environment sound, and the privacy of the user is protected.

As shown in fig. 3, the control circuit includes at least a control unit, a communication unit, and a power supply unit. The microphone 120 is electrically connected to the control circuit.

The control unit is used for realizing central control of the microphone assembly, including but not limited to controlling the microphone to collect external audio signals, power management and the like.

The communication unit is used for data interaction between the microphone assembly 100 and the outside, including but not limited to transmission of audio signals collected by the microphone 120 to the outside. The communication unit can adopt a wired transmission mode and a wireless communication mode. The wired transmission method may be one or more of a USB interface, a micro USB interface, a mini USB interface, a Type-C interface, a lightning interface, and an audio output dedicated interface, or other known or unknown wired transmission methods capable of at least transmitting audio data. The microphone assembly 100 shown in fig. 1 adopts a wired transmission method, wherein the microphone assembly 100 further includes an audio output dedicated connector 140 electrically connected to the control circuit through the cable 130. The audio transmission dedicated connector 140 may be a 3.5mm two-core audio output connector.

The power supply unit is used for providing a power supply required by the microphone assembly during working, can be a power supply circuit module which is powered by a button battery or a rechargeable battery, can also be a power supply management module which is powered by an external input power supply for the device, and can also be a circuit module which is based on a wired communication interface and can automatically take power.

In a preferred embodiment, the cover body is further provided with a sensing unit (not shown in the drawings) electrically connected to the control circuit, the sensing unit is configured to detect a use state of the microphone assembly, and generate a first sensing signal when detecting that the microphone assembly is used (if it is detected that light inside the cavity is dark, temperature on the surface of the cavity is increased, and the like, the microphone assembly is considered to be worn and should be in a use state), and the control circuit turns on the microphone when detecting the first sensing signal, so that the microphone enters a working state of collecting audio information; when the microphone assembly is detected to be idle (if the microphone assembly is detected to be taken off and should be stopped to use if the light inside the concave cavity is bright, the surface temperature of the concave cavity is reduced and the like are detected), a second sensing signal is generated, and when the control circuit detects the second sensing signal, the microphone is closed, so that the power consumption is reduced, and the standby time of the microphone assembly is prolonged.

The sensing element may be implemented using any of a variety of existing or future sensing technologies that can detect temperature changes, light changes, sound wave changes, pressure changes, position changes, etc. received by the microphone assembly, such as one or more of an infrared sensor, a pressure sensor, and a vibration sensor, which may be disposed at any suitable location on the housing, such as within the cavity of the cavity, within the housing, etc., depending on the type of sensing element used.

Considering that when a sound signal is transmitted in a closed space, the sound signal may be distorted or reverberated due to the structure and material of the cavity, and the quality of the sound collected by the microphone is affected, in another preferred embodiment, the control circuit may further include a signal processing unit, configured to perform a spectral curve adjustment on the sound signal collected by the microphone, eliminate reverberation, and obtain a sound signal when the sound signal is close to an open environment, where the control unit controls the communication unit to output the sound signal processed by the signal unit. The signal processing unit may be specifically configured to perform various known or future-adoptable audio processing methods including EQ (equalization) processing, reverberation cancellation, and the like.

The audio equipment that this embodiment provided, when the sound-proof structure of design microphone subassembly, adopt the spectral curve adjustment of signal processing unit to user's sound signal, not only have the advantage that physics is syllable-dividing, can also effectively eliminate the distortion of sound wave in narrow and small and confined space, distortion and unusual reverberation, and obtain the sound effect that is close to in the open environment, improve sound collection quality. Therefore, compared with the prior art, the audio equipment of the embodiment can provide user experience with better sound insulation effect and better sound quality, and can be suitable for various application scenes, so that people can freely speak and sing in places such as conference rooms, classrooms, concert halls, stadiums, libraries, churches, buses, high-speed rails, clubs, bars and the like, or in noisy morning and at silent midnight, and people do not worry about disturbing others, or worry about that the sound of the other party is not heard or is hard to hear the sound transmitted to the other party by the people, and privacy leakage is not worried.

Example 2:

as shown in fig. 4, the present embodiment provides an audio device having a separable earphone and microphone structure, which includes an earphone assembly 400 and a microphone assembly 100 that are separately provided from each other.

The microphone assembly 100 may be the same or similar soundable microphone assembly as embodiment 1.

The earphone assembly 400 may be a headphone, an earphone or an in-ear earphone, and has a left earphone 410, a right earphone 420, a connecting portion 430 for connecting the left and right earphones, and a control circuit (not shown).

The connection 430 may be designed as a headset holder, a headband, a soft band, a connection cable, etc., in which a wire is disposed. Speaker units are respectively disposed in the left headset 410 and the right headset 420. The loudspeaker unit is electrically connected with the control circuit through a lead.

As shown in fig. 5-1, the control circuit of the headset assembly 400 includes a communication unit, a micro-processing unit, and a power supply unit.

The micro-processing unit is used for implementing central control of the headset assembly 400, including but not limited to communication control, data processing, play control, and the like.

The communication unit is used for data interaction between the headset assembly 400 and the outside, including but not limited to receiving a far-end audio signal from an external device or receiving a local audio signal collected by a microphone from the microphone assembly 100. The communication unit can adopt a wired transmission mode and/or a wireless communication mode. That is, the communication unit may be in a wired transmission mode, for example, data interaction is performed with the outside through setting one or more of various wired transmission interfaces such as a USB interface, a micro USB interface, a mini USB interface, a Type-C interface, a lightning interface, an audio output dedicated interface, and the like; the communication unit can also be in a wireless communication mode, such as adopting a wireless communication module to communicate with the outside based on a wireless communication protocol; the communication unit can also adopt a wireless communication mode and a wired communication mode simultaneously so as to provide multiple channels for data interaction.

In one embodiment, as shown in fig. 5-1, the headset assembly 400 communicates with an external device using wireless communication; while data interaction with the microphone assembly 100 is performed using wired or wireless communication. It should be understood that the specific implementation can be flexibly designed according to the actual requirements, and is not limited to the description of the embodiments herein, and the adaptive changes or improvements based on the description herein should be within the protection scope of the present invention.

As shown in fig. 5-1, the headset assembly 400 has two communication units: a wireless communication unit and a microphone connection unit.

The headset assembly 400 communicates with an external device through a wireless communication unit based on a wireless communication protocol to receive a far-end audio signal from the external device, and the micro-processing unit is configured to process the far-end audio signal and then play the far-end audio signal through a speaker unit of the left headset 410 and/or the right headset 420.

The wireless communication protocol described herein may be a standard wireless protocol, or may be a proprietary wireless protocol or a proprietary wireless protocol. The term "standard wireless protocol" as used herein refers to any open or publicly available wireless protocol, including any wireless protocol provided or promulgated by a standard agency or organization, such as the Bluetooth specification, Wi-Fi, and the like. The term "proprietary wireless protocol" or "private wireless protocol" as used herein refers to any wireless communication protocol other than the standard wireless protocol.

The external device may be a mobile phone, a computer, a television, a wireless sound box, a car sound box, a game machine, or other media players, handheld computers, game devices, televisions, or audio receiving devices. The electronic equipment can be electronic equipment provided in the form of an independent device, such as a mobile phone, a computer and the like, and can also be electronic equipment provided as an embedded system, such as a vehicle-mounted sound box, a home theater and the like. These are merely illustrative examples, and the present invention is not limited thereto.

Accordingly, as shown in fig. 3 and 5-1, the communication unit of the microphone assembly 100 adopts a wired data transmission manner, and may be a headset connection unit for electrically connecting with the headset assembly 400 for data interaction, and particularly transmitting a local audio signal collected by a microphone to the headset assembly 400.

The control unit of the microphone assembly 100 is further configured to monitor a connection state of the earphone connection unit, and when it is detected that the earphone assembly 400 is electrically connected to the microphone assembly 100 through the earphone connection unit, the local audio signal obtained based on the local audio signal acquired by the microphone is output to the earphone assembly 400.

As shown in fig. 5-1, the speaker units in the left and right earphones are used to realize audio signal playing under the control of the microprocessor unit.

The microphone connecting unit is used for being connected with the microphone assembly in a wired mode. The micro-processing unit is further used for detecting the connection state of the microphone connection unit, when the microphone assembly 100 is detected to be electrically connected with the microphone assembly 100 through the microphone connection unit, local audio signals from the microphone assembly 100 are received, the local audio signals are played through the loudspeaker unit, or the local audio signals and the far-end audio signals are mixed and then played through the loudspeaker unit, or the loudspeaker units of the left and right earphones are controlled to respectively play the far-end audio signals and the local audio signals. The micro processing unit is further configured to, when the headset assembly 400 communicates with an external device such as a mobile phone based on a wireless communication protocol, process the local audio signal and send the processed local audio signal to the external device through the wireless communication unit, thereby implementing a communication function with the external device.

The power supply unit of the earphone assembly 400 and the microphone assembly 100 may be a power supply circuit module powered by a button battery or a rechargeable battery, a power supply management module powered by an external input power supply, or a circuit module capable of automatically taking power based on a wired communication interface. The two may be the same or different.

As an alternative embodiment, the microphone connection unit may be an audio jack or an audio plug, and correspondingly, the earphone connection unit may be an audio plug or an audio jack. As exemplarily shown in fig. 4, the microphone connection unit is a microphone socket mic in430 and the earphone connection unit is a 3.5mm microphone plug.

Referring to fig. 5-1, as an alternative embodiment, the control circuit of the microphone assembly 100 may not include the signal processing unit described in embodiment 1, but the control circuit of the earphone assembly 400 undertakes related signal processing operations, that is, the control circuit of the earphone assembly 400 includes a signal processing unit for performing spectral curve adjustment on the local audio signal from the microphone assembly to obtain the sound effect when the environment is close to the open environment. This reduces the complexity of the control circuit of the microphone assembly 100, thereby reducing the cost. In addition, the signal processing unit may also undertake other signal processing procedures in the headset assembly 400, including but not limited to packet loss compensation, digital-to-analog conversion, analog-to-digital conversion, and the like.

Fig. 5-2 shows another alternative of the present embodiment, in which, unlike the manner shown in fig. 5-1, the headset assembly 400 performs data interaction with an external device through a wired transmission interface, receives a far-end audio signal input by the external device, and/or outputs a local audio signal to the external device. As a typical application scenario, the audio device may be a bluetooth headset with a detachable microphone assembly. The microphone assembly 100 can be plugged into the micin socket 430 of a bluetooth headset via a 3.5mm microphone plug 130. The mic in socket 430 can be arranged on the left ear microphone 410 side or the right ear microphone 420 side of the bluetooth headset, and microphone sockets mic in430 can be arranged on the left ear microphone side and the right ear microphone side, so that a user can select one of the microphone sockets to plug in a microphone assembly according to the use habit of the user.

When the audio jack 430 of the bluetooth headset is not plugged into the audio plug 130 of the microphone assembly, it is used as an audio playing device, that is, the bluetooth headset and an external device establish a bluetooth communication connection based on a bluetooth wireless communication protocol, receive a far-end audio signal from the external device, and demodulate the far-end audio signal into corresponding baseband data through a radio frequency transceiver of the wireless communication unit, then recover control information and far-end audio signal data through the baseband data and protocol processing unit in the micro-processing unit, and send the far-end audio signal data to the signal processing unit for further processing, such as packet loss compensation, digital-to-analog conversion, etc., so as to obtain an audio signal suitable for being played by a speaker, and then play the audio signal through speaker units in the left and right ear microphones. Therefore, the simple audio receiving and playing function is completed.

When the audio jack 430 of the bluetooth headset is plugged into the audio plug 130 of the microphone assembly, it can be used as an audio capture and playback device. At the moment, the function of the Bluetooth headset is the same as that of a common commercially available Bluetooth headset, namely, a far-end audio signal from external equipment can be received and played, and a local audio signal collected by a microphone can be transmitted to the external equipment through a wireless communication unit after signal processing, so that audio interaction with the external equipment is realized, such as a voice call function. In addition, the earphone also can have an ear return function, namely, the local audio signal collected by the microphone is played in the earphone component.

The audio device provided by the present embodiment, due to the structure of the separable earphone assembly 400 and the microphone assembly 100, can be used as a pure audio playing device when the microphone assembly is not accessed, and can be used as a voice call device when the microphone assembly is accessed. Meanwhile, the microphone assembly can also transmit the acquired audio signal to external equipment by utilizing the external data transmission function of the earphone assembly, particularly the external equipment without a microphone special socket micin. The microphone special socket micin is very suitable for being arranged on computers, mobile phones and smart televisions less and less at present. Therefore, compared with the prior art, the audio equipment is more convenient and flexible to use and has wider application range. And because the microphone assembly has the sound insulation structure, the audio equipment is not only suitable for the common environment, but also suitable for various occasions needing to shield own voice or environmental sound, and can effectively reduce environmental noise and enhance conversation privacy. And because the microphone assembly can be plugged into the earphone assembly, the sound of the user can be heard by utilizing the ear return function of the earphone, and the volume can be adjusted, the pronunciation can be corrected, the audio quality collected by the microphone can be observed and the like.

Example 3

As shown in fig. 6, unlike embodiment 2, in the audio device provided in this embodiment, in addition to the communication unit for data interaction between the earphone assembly 400 and the microphone assembly 100, that is, the earphone connection unit and the microphone connection unit in embodiment 2, the communication unit may further include one or more wired transmission interfaces, such as wired transmission interfaces 610 and 620 exemplarily shown in fig. 6, for wired data transmission with external devices using different audio data transmission methods.

Referring to fig. 6 and 7, as an alternative embodiment, the wired transmission interface is disposed on the headset assembly 400 and electrically connected to the microprocessor unit of the headset assembly 400.

After the wired transmission interface is electrically connected to an external device, the microprocessor unit controls the earphone assembly 400 to perform data interaction with the external device through the wired transmission interface, including but not limited to receiving audio data from the external device, transmitting the audio data collected by the microphone assembly to the external device, and receiving control of the external device on the earphone assembly and the microphone assembly in the audio device.

The wired transmission interface may be one or more of a USB interface, a micro USB interface, a mini USB interface, a Type-C interface, a lightning interface, and a line in interface, and may also be other known or unknown wired transmission interfaces for audio data.

As a typical application scenario, the audio device may be a bluetooth headset with a detachable microphone assembly similar to that in embodiment 2. However, unlike the embodiment 2, the bluetooth headset is further provided with a line in jack 610. After the micro-processing unit receives a third audio signal from an external device through the line in jack 610, the micro-processing unit can control the speaker unit to play the third audio signal, which further provides a richer use method for the earphone. For example, the user can connect an external sound source device such as an electric guitar effect outputter, a CD player, etc. through the line in jack 610 to input accompaniment music, and simultaneously plug the microphone assembly through the mic in jack 430 to collect a user's voice signal, and simultaneously play the accompaniment music and the voice signal through the speaker unit of the headset, thereby implementing the karaoke function.

As another typical application scenario, the audio device may be a bluetooth headset with a detachable microphone assembly similar to that in embodiment 2. But unlike in embodiment 2, the wired transmission interface provided on the bluetooth headset includes a micro USB jack 620 and a line in jack 610. The power supply unit is electrically connected with the micro USB jack 620 so as to receive external equipment to charge or supply power to the Bluetooth headset. The micro processing unit is electrically connected with the micro USB jack 620 so as to perform wired data interaction with external equipment. In addition, the micro processing unit may be further configured to process a local audio signal collected by the microphone assembly and input from the micro in jack 430 and transmit the processed local audio signal to an external device through the micro USB jack 620, or mix a third audio signal input from the line in jack 610 and a local audio signal input from the micro in jack 430 and transmit the mixed signal to the external device through the micro USB jack 620. For example, the user can realize WeChat voice chat on the mobile phone based on the audio equipment, or transmit the record of singing to the mobile phone when karaoke.

As a third exemplary application scenario, the wired transmission interface may be configured as a cable having one end integrated on the earphone assembly body and the inside electrically connected to the control circuit through a wire, and the other end (or called a far end) of the cable is a plug of the wired transmission interface, and an audio transmission plug, such as a lightning plug, a 3.5mm audio connector plug, etc., may be generally adopted, so that the audio device may be directly wired to an external device (such as a mobile phone) through the plug (e.g., the lightning plug or a four-contact TRRS plug, etc.), thereby having functions of wireless communication and wired communication with the external device.

As a fourth exemplary application scenario, the wired transmission interface may be a jack of one interface Type of a USB interface, a micro USB interface, a mini USB interface, a Type-C interface, or a lightning interface, so that a user may use a dual-head cable having adaptive plug connectors at both ends to wire-connect the audio device with an external device.

In other alternative embodiments, the wired transmission interface may also be disposed on the microphone assembly 100, or both, and the specific embodiment thereof is the same as or similar to that disposed on the earphone assembly, and will not be described herein again.

As an alternative implementation, the audio device in this embodiment may further include an earphone assembly 400 and two microphone assemblies, wherein the earphone assembly 400 and the microphone assembly 100 may be the same as the microphone assembly 100 in embodiment 1 or embodiment 2, and are sound-proof microphone assemblies. The second microphone assembly 600 may be a microphone assembly without sound insulation, that is, the second microphone assembly 600 has no sound insulation structure on the microphone body. It includes an earphone connection unit, a microphone, and a connection piece electrically connecting the earphone connection unit and the microphone, fig. 6 shows a connection rod, and can also be implemented in various suitable forms such as a connection cable, a connection frame, etc. The second microphone assembly 600 is electrically connected to the microphone connecting unit of the earphone assembly 400 through the earphone connecting unit, and transmits the sound signal collected by the microphone to the earphone assembly 400.

Thus, when the audio equipment is used, because the two microphone assemblies are separable structures, a user can select the microphone assembly capable of sound insulation to be plugged into the earphone assembly according to needs when sound insulation or voice confidentiality is needed, and select the microphone assembly without sound insulation to be used when the sound insulation or the voice confidentiality is not needed.

The audio equipment provided by the embodiment has a sound insulation function, and meanwhile, the application range of the audio equipment is expanded by utilizing various types of transmission interfaces and transmission modes, and the universality of the audio equipment is improved. The separable structure of the earphone assembly and the microphone assembly, and the matching design of the soundless microphone assembly 600 and the soundless microphone assembly 100 also provide great flexibility and convenience for the use and carrying of the audio equipment.

Example 4:

as shown in fig. 8, unlike embodiments 1, 2 and 3, this embodiment provides an audio device in which an earphone assembly and a soundable microphone assembly employ a wireless communication method.

The control circuit of the earphone component comprises a wireless communication unit, a micro-processing unit, a signal processing unit and a power supply unit.

The control circuit of the microphone assembly comprises a wireless communication unit, a control unit, an induction unit and a power supply unit.

In the audio apparatus provided in the present embodiment, since the headphone assembly and the microphone assembly have wireless communication units, respectively, wireless communication can be performed based on a predetermined wireless communication protocol. The wireless communication may be between any two of the headset assembly, the microphone assembly, and the external device. For example, the earphone assembly may communicate with an external device through the wireless communication unit, receive a far-end audio signal from the external device, and play through speaker units of left and right earphones. The headset assembly may also communicate with the microphone assembly through the wireless communication unit, receive local audio signals from the microphone assembly, and play or forward the local audio signals to an external device. The microphone assembly can also communicate with an external device through the wireless communication unit to send a local audio signal to the external device or receive a far-end audio signal from the external device and forward the far-end audio signal to the earphone assembly.

As a typical application scenario, the audio device provided by this embodiment can be used as a bluetooth wireless headset with a sound insulation function, and the voice call process with the mobile phone is as follows:

the earphone component is respectively connected with the mobile phone and the microphone component in a Bluetooth wireless communication way;

the mobile phone sends a far-end audio signal data packet to the earphone component based on the first communication link; correspondingly, the earphone component receives the far-end audio signal data packet;

the microphone assembly sends a local audio signal data packet to the earphone assembly based on the second communication link, and correspondingly, the earphone assembly receives the local audio signal data packet;

based on a predetermined wireless communication protocol, the handset and microphone assembly are configured to transmit audio data packets in a time-sharing manner, such that the headset assembly may receive remote audio signal data packets during handset transmit time slots and local audio signal data packets during microphone assembly transmit time slots within a communication Interval (Interval).

In order to implement voice call, the headset assembly further needs to forward the local audio signal data packet to the mobile phone in a receiving time slot of the mobile phone.

The micro-processing unit and the signal processing unit of the earphone component also perform related processing on the received far-end audio signal data packet to obtain a far-end audio signal, so that the far-end audio signal is played through a loudspeaker unit of the earphone component. If the far-end audio signal is a stereo signal, the micro-processing unit transmits a left channel signal in the far-end audio signal to the loudspeaker unit of the left earphone for playing, and simultaneously transmits a right channel signal to the loudspeaker unit of the right earphone for playing.

Thus, the wireless voice call process with the earphone assembly as the relay is realized.

Obviously, according to the description of the present embodiment, the above-mentioned wireless voice call process can also be implemented with the microphone assembly as a relay. The specific technical details are similar to those of the above-mentioned process, and are not described herein again.

Obviously, in the case of no conflict, the present embodiment may also combine some technical features in embodiments 1, 2, and 3 to obtain more abundant functions and applications, and specific technical details thereof may refer to the foregoing embodiments and are not described herein again.

In the audio device provided by this embodiment, the earphone component and the microphone component are separately disposed and communicate based on a wireless communication protocol, so that the audio device can be used as a single audio listening device, a single audio collecting and playing device, a voice communication device, a voice transmission device, and other functional devices; meanwhile, the microphone assembly with the soundproof cover body design has the advantages of soundproof, noise reduction, maintenance privacy and the like, and the microphone assembly is wider in application range.

Example 5:

as shown in fig. 9, the present embodiment provides an audio device including a headphone assembly and a microphone assembly. Wherein the earphone assembly is a headphone, an earhook or an in-ear earphone having at least a left earphone and a right earphone. One of the left and right headsets is a master headset, and the other is a slave headset, wherein the master headset is used for forwarding audio data to the slave headset.

As shown in fig. 10, the main headset includes a control circuit and a speaker unit, and the control circuit at least includes a wireless communication unit, a power supply unit, and a microprocessor unit;

the slave headset comprises a control circuit and a loudspeaker unit, wherein the control circuit at least comprises a wireless communication unit, a power supply unit and a micro-processing unit.

The master headset and the slave headset can be of a split structure, namely, the master headset and the slave headset are independent earphone devices and carry out wireless communication of a master-slave structure through a wireless communication unit based on a preset wireless communication protocol. In some embodiments, the wireless communication unit of the master headset may be configured in dual radio modes for performing wireless communication between the master headset and the slave headset, and wireless communication between the master headset and the external device, respectively; in other embodiments, the wireless communication unit of the master headset may be configured in a single radio mode and implement wireless communication between the master headset and the slave headset and wireless communication between the master headset and the external device in a time division multiplexed manner.

The control circuits of the master and slave headsets may be the same or different. They may be set as a master headset and a slave headset at the time of shipment from a factory, may be set by a user at the time of use, or may be automatically determined by the left and right headsets according to the respective communication distances and communication qualities with the external devices.

The microphone assembly in this embodiment may be the same acoustically isolatable microphone assembly as in the previous embodiment.

This embodiment is different from embodiment 4 in that the master ear microphone in the earphone set performs wireless communication with the external device and the microphone set, and the slave ear microphone performs wireless communication only with the master ear microphone. And when the audio is played, the slave headset receives the audio data forwarded by the master headset and plays the audio data synchronously with the master headset.

As a typical application scenario, the audio device provided by this embodiment can be used as a bluetooth wireless headset with a sound insulation function, and the voice call process with the mobile phone is as follows:

the main headset is respectively in Bluetooth wireless communication connection with the mobile phone and the microphone assembly; the master headset and the slave headset also establish wireless communication connection, which can be bluetooth wireless communication connection or other short-distance wireless communication connection. The main headset is communicated with the mobile phone, the microphone assembly and the auxiliary headset respectively in a time-sharing mode.

The mobile phone sends a far-end audio signal data packet to the main headset based on the first communication link; correspondingly, the main headset receives the far-end audio signal data packet;

the microphone assembly sends a local audio signal data packet to the main headset based on the second communication link, and correspondingly, the main headset receives the local audio signal data packet;

based on a predetermined wireless communication protocol, the main headset receives a far-end audio signal data packet in a handset transmission time slot and a local audio signal data packet in a microphone assembly transmission time slot within one communication Interval (Interval).

Meanwhile, in order to realize voice communication, the main headset forwards the local audio signal data packet to the mobile phone in the receiving time slot of the mobile phone.

The micro-processing unit of the master headset also forwards the received far-end audio signal packet to the slave headset in a forwarding time slot based on the third communication link. If the far-end audio signal is a stereo signal, the master headset extracts the audio data of the sound channel corresponding to the slave headset in the far-end audio signal package and then forwards the audio data to the slave headset.

Thus, the wireless voice call process with the main headset as the relay is realized.

Obviously, in the case of no conflict, the present embodiment may also combine some technical features in the foregoing embodiments to obtain richer functions and applications, and specific technical details thereof may refer to the foregoing embodiments and are not described herein again.

For implementation of other exemplary application scenarios or other modified structures of this embodiment, reference may be made to the foregoing embodiments, and further description is omitted here.

Example 6:

as a specific implementation manner, as shown in fig. 11, this embodiment provides an audio device, which is different from embodiment 5, in that the left and right ear microphones included in the headset assembly and separately provided have a function of monitoring communication between the (microphone) microphone assembly and an external device, and the left and right ear microphones perform wireless communication in a peer-to-peer structure based on the wireless communication unit.

The microphone assembly establishes communication connection with an external device based on a predetermined wireless communication protocol (such as a Bluetooth protocol) and establishes a first wireless communication link, and the first wireless communication link is at least used for receiving a far-end audio signal from the external device by the microphone assembly and sending a local audio signal formed by collecting a sound signal by the microphone assembly to the external device; it should be noted that the microphone assembly may not be received or discarded after reception if the far-end audio signal is not required.

The microphone assembly establishes communication connection with the left earphone and the right earphone respectively based on a predetermined wireless communication protocol (such as near field magnetic induction technology (NFMI) or a custom Bluetooth protocol), establishes a second wireless communication Link with the left earphone and establishes a third wireless communication Link with the right earphone, and transmits wireless Link parameters of the microphone assembly and external equipment to the left earphone and the right earphone respectively, wherein the wireless Link parameters comprise a Bluetooth address, a Bluetooth clock, a Link Key (Link Key) of the external equipment, a synchronous word sequence between the external equipment and the microphone assembly and the like, so that the master earphone and the slave earphone can synchronize channels and time slots of the Bluetooth wireless connection between the microphone assembly and the external equipment, and Link information and far-end audio signals sent to the microphone assembly by the external equipment are received.

Therefore, the left headset and the right headset receive far-end audio signals sent by external equipment in a monitoring mode and can realize audio playing. In addition, the left and right ear microphones can also receive and play local audio signals from the microphone assembly based on the wireless communication link with the microphone assembly.

As shown in fig. 12, as another specific implementation manner, in the audio device provided in this embodiment, one of the left and right headsets (for simplicity of description, the left headset will be taken as an example, and in a specific implementation, the left headset may also be a right headset) establishes a wireless communication connection with the external device, and establishes a first wireless communication link at least for the left headset to receive a far-end audio signal from the external device;

the method comprises the steps that a left headset and a right headset establish wireless communication connection based on a preset wireless communication protocol, a second wireless communication link is established, and wireless link parameters of the left headset and external equipment are shared to the right headset through the second wireless communication link;

the right headset receives link information and a far-end audio signal which are sent to the left headset by the external equipment based on the wireless link parameters.

The microphone assembly establishes wireless communication connection with the left headset, establishes a third wireless communication link, and is at least used for sending the collected local audio signal to the left headset. Meanwhile, the left headset also sends the local audio signal to an external device based on the first wireless communication link, and the left headset also sends the local audio signal to a right headset based on the second wireless communication link so as to realize the playing of the local audio signal in the headset assembly.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. An audio device, characterized by: comprises an earphone component and a microphone component which are arranged separately from each other,

the microphone assembly comprises a microphone assembly body, a microphone and a control circuit, wherein the microphone and the control circuit are arranged in the microphone assembly body;

the earphone component at least comprises a left earphone, a right earphone and a control circuit;

the control circuits of the microphone assembly and the earphone assembly are respectively provided with a communication unit, and based on the communication units, the microphone assembly transmits local audio signals collected by a microphone to the earphone assembly or forwards remote audio signals from external equipment to the earphone assembly.

2. The audio device of claim 1, wherein: the control circuit of the microphone assembly also comprises a signal processing unit; the signal processing unit is electrically connected with the communication unit, and is used for adjusting a frequency spectrum curve of a sound signal collected by the microphone and outputting the adjusted sound signal through the communication unit of the microphone assembly; or,

the control circuit of the earphone component further comprises a signal processing unit, the signal processing unit is electrically connected with the communication unit of the earphone component, the signal processing unit adjusts a frequency spectrum curve of a sound signal from the microphone component, and the adjusted sound signal is transmitted outwards through the communication unit of the earphone component or is played through a left earphone and/or a right earphone of the earphone component.

3. The audio device of claim 1, wherein: the microphone assembly body is provided with an induction unit which is electrically connected with the control circuit;

the sensing unit is used for detecting the using state of the microphone assembly and generating a first sensing signal when the microphone assembly is detected to be used, and the control circuit turns on the microphone when detecting the first sensing signal; the sensing unit generates a second sensing signal when detecting that the microphone assembly is idle, and the control circuit closes the microphone when detecting the second sensing signal.

4. The audio device of claim 1, wherein: the communication unit of the microphone assembly comprises an earphone connecting unit, the communication unit of the earphone assembly comprises a microphone connecting unit, the earphone assembly and the microphone assembly are in wired connection with the microphone connecting unit through the earphone connecting unit, and based on the wired connection, the earphone assembly receives local audio signals acquired by a microphone of the microphone assembly and/or receives remote audio signals forwarded by the microphone assembly from external equipment;

and the control circuit of the earphone component controls the left microphone and/or the right microphone to play the far-end audio signal and/or the local audio signal.

5. The audio device of claim 1, wherein: the communication units of the microphone assembly and the earphone assembly respectively comprise wireless communication units, and based on the wireless communication units, the microphone assembly and the earphone assembly establish wireless communication connection;

based on the wireless communication connection, the earphone component receives a local audio signal acquired by a microphone of the microphone component, and/or the earphone component receives a far-end audio signal forwarded by the microphone component and coming from an external device;

and the control circuit of the earphone component controls the left microphone and/or the right microphone to play the far-end audio signal and/or the local audio signal.

6. The audio device of claim 1, wherein: the microphone assembly and/or the earphone assembly communicate with the external device based on its communication unit to receive a far-end audio signal from the external device and/or transmit a local audio signal to the external device.

7. The audio device of claim 1, wherein: the left earphone mic and the right earphone mic of the earphone component are of a split structure;

the left headset and the right headset are both provided with control circuits, and the control circuits both comprise wireless communication units,

the left headset and the right headset perform wireless communication in a master-slave structure or a peer-to-peer structure based on the wireless communication unit.

8. The audio device of claim 1, wherein: one or more wired transmission interfaces are arranged on the microphone assembly and/or the earphone assembly and are used for carrying out wired data transmission with one or more external devices.

9. The audio device of claim 4, wherein: the second microphone assembly is a microphone assembly without the sound insulation structure and comprises an earphone connecting unit, a microphone and a connecting piece for electrically connecting the earphone connecting unit and the microphone;

the second microphone assembly is electrically connected with the microphone connecting unit of the earphone assembly through the earphone connecting unit and transmits the sound signal collected by the microphone to the earphone assembly.

10. The audio device according to any one of claims 1 to 9, characterized by: microphone subassembly has the sound-proof structure that can cooperate people's face to form the enclosure, specifically includes:

the microphone assembly body is a cover body with a concave cavity inside, the opening part of the concave cavity has a shape at least conforming to the characteristics of the oral cavity area of a human body, and when the opening part is covered on the oral cavity area of the human body, a closed space is formed in the concave cavity;

the opening part of the concave cavity is provided with a voice isolating coil,

a sound insulation layer is arranged in the concave cavity,

the microphone is arranged on the side wall of the concave cavity.

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