CN109348366B - A method and mobile terminal for realizing volume adjustment using electrical parameters - Google Patents

Abstract

The invention provides a method for adjusting volume by using an electrical parameter and a mobile terminal, and belongs to the technical field of communication. The method for adjusting the volume by using the electrical parameter comprises the following steps: determining an initial impedance of the headset; obtaining the current impedance of the earphone; determining a target gain of the earphone according to the current impedance and the initial impedance; and sending the target power matched with the target gain to the earphone. In the embodiment of the invention, the earphone can realize a better sound output effect, the problem of volume reduction caused by blockage of the sound output hole of the earphone is avoided, and the use experience of a user on the earphone is improved.

Description

A method and mobile terminal for realizing volume adjustment using electrical parameters

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and a mobile terminal for realizing volume adjustment using electrical parameters.

Background technique

As mobile terminals play an increasingly important role in people's lives, people use mobile terminals more and more frequently every day, and the relationship between daily life and work and mobile terminals is also getting closer and closer. A user often needs to use a mobile terminal to listen to sound, watch video, etc. In order to prevent the audio played by the speaker of the mobile terminal from interfering with others, the user often uses an earphone to listen to the audio of the mobile terminal.

However, as the frequency of use of the earphones increases, the sound holes on the earphones are easily blocked by debris such as dust and oil, which leads to a decrease in the volume of the earphones and affects the user experience.

SUMMARY OF THE INVENTION

The present invention provides a method and a mobile terminal for realizing volume adjustment by using electrical parameters, so as to solve the problem that the earphone is easily blocked and the volume of the earphone is lowered.

In order to solve the above-mentioned technical problems, the present invention is achieved in this way:

In a first aspect, an embodiment of the present invention provides a method for realizing volume adjustment by using electrical parameters, which is applied to a mobile terminal, and an earphone is connected to the mobile terminal, and the method includes:

determine the initial impedance of the earphone; obtain the current impedance of the earphone;

determining the target gain of the earphone according to the current impedance and the initial impedance;

A target power matching the target gain is sent to the earphone.

In a second aspect, an embodiment of the present invention provides a mobile terminal to which a headset is connected, and the mobile terminal may include:

an initial impedance determination module for determining the initial impedance of the earphone; a current impedance acquisition module for acquiring the current impedance of the earphone;

a target gain determination module, configured to determine the target gain of the earphone according to the current impedance and the initial impedance;

A target power output module, configured to send the target power matching the target gain to the earphone.

In a third aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program is executed by the processor At the time, the steps of the method for realizing volume adjustment by using electrical parameters as described in the first aspect are realized.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and the computer program is implemented as described in the first aspect when the computer program is executed by a processor. The steps of the method for realizing volume adjustment by using electrical parameters.

In the embodiment of the present invention, when the earphone is connected to the mobile terminal, the initial impedance of the earphone can be determined, and the current impedance of the earphone can be obtained. According to the current impedance and the initial impedance, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve a better output under the degree of blockage. The target gain of the sound effect; and the target output power that enables the earphone to achieve the target gain is sent to the earphone, so as to adjust the volume of the earphone. In this way, the earphone can achieve a better sound output effect, avoid the problem of the volume drop of the earphone due to the blockage of the sound outlet hole, and improve the user's experience of using the earphone.

Description of drawings

Fig. 1 is one of the flow charts of the method that utilizes electric parameter to realize volume adjustment provided by the embodiment of the present invention;

2 is a flowchart of steps of a method for determining an initial impedance of an earphone provided by an embodiment of the present invention;

3 is a schematic structural diagram of an equivalent circuit of an earphone provided by an embodiment of the present invention;

4 is a flowchart of steps of a method for obtaining the current impedance of an earphone provided by an embodiment of the present invention;

5 is a flowchart of steps of a method for determining a target gain of an earphone provided by an embodiment of the present invention;

Fig. 6 is the second flow chart of the method for realizing volume adjustment by using electrical parameters provided by an embodiment of the present invention;

7 is one of the block diagrams of a mobile terminal provided by an embodiment of the present invention;

8 is the second block diagram of a mobile terminal provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

FIG. 1 is one of the flowcharts of a method for implementing volume adjustment using electrical parameters provided by an embodiment of the present invention. The method can be applied to a mobile terminal, and an earphone is connected to the mobile terminal. As shown in FIG. 1 , the method may include:

Step 101: Determine the initial impedance of the earphone.

In this embodiment of the present invention, the earphone is an earphone connected to an earphone jack of the mobile terminal. Specifically, the earphone may be a standard earphone of the mobile terminal, or a non-standard earphone, and the specific type of the earphone may not be limited in this embodiment of the present invention.

FIG. 2 is a flowchart of steps of a method for determining an initial impedance of an earphone provided by an embodiment of the present invention. As shown in Figure 2, the method may include:

Step 1011: Determine the type of the headset.

In practical applications, in the case that the headset is a standard headset of the mobile terminal, the type of the headset can be automatically identified.

In the case that the earphone is a non-standard earphone, the model of the earphone can be determined in the following two ways: the first is to determine the model of the earphone by manually inputting the model of the earphone by the user. For example, in the case where the user manually inputs the model of the headset as "A" on the setting interactive interface of the mobile terminal, the model of the headset may be determined to be A. The second is to determine the model of the earphone by detecting parameters such as load and impedance detected when the earphone is connected to the mobile terminal. For example, when a new non-standard headset is connected to the mobile terminal, and the detected parameters such as load and impedance match the parameters of the existing headset type B, it can be determined that the headset type is B .

Step 1012: Determine the initial impedance of the earphone according to the type of the earphone.

In this embodiment of the present invention, the initial impedance may be the impedance of the earphone in a factory state (ie, a state in which the sound outlet of the earphone is not blocked). In practical applications, various types of headphones often have their own initial impedances.

In practical applications, various types of earphones and corresponding initial impedances can be stored in advance. For example, the corresponding initial impedance of type A headphones is 4 ohms, and the corresponding impedance of type B headphones is 8 ohms.

In this embodiment of the present invention, after the type of the earphone is determined, the preset initial impedance of the earphone may be determined according to the type of the earphone.

For example, when it is determined that the type of the earphone is type A, it can be directly determined that the initial impedance of the earphone is 4 ohms.

In an optional embodiment of the present invention, another method may also be used to determine the initial impedance of the earphone.

First, when the earphone is connected for the first time, a first AC signal can be sent to the earphone. In practical applications, when the headset is connected to the mobile terminal, a first AC signal may be sent to the headset, and specifically, the first AC signal may be a voltage signal or a current signal.

Then, the current impedance of the earphone is determined according to the first feedback signal of the earphone. In practical applications, after the first AC signal is sent to the earphone, the earphone will feed back a first feedback signal, and the initial impedance of the earphone can be determined according to the first feedback signal.

For example, when the first AC signal is a voltage signal, the earphone can feed back a current signal according to the voltage signal, and the current signal is the first feedback signal. The ratio of the current signals can be used to determine the initial impedance of the earphone.

Step 102: Obtain the current impedance of the earphone.

FIG. 3 is a schematic structural diagram of an equivalent circuit of an earphone provided by an embodiment of the present invention. As shown in FIG. 3 , the equivalent circuit of the earphone may specifically include: a voice coil DC resistance 30 , a voice coil inductance 31 , and an acoustic resistance of the sound outlet of the front cavity. 32. The front cavity sound capacity 33 and the front cavity sound hole sound sense 34; wherein, the voice coil DC resistance 30, the voice coil inductance 31 and the front cavity sound hole sound resistance 32 are connected in series, the front cavity sound capacity 33, the front cavity output The sound hole sound sense 34 is connected in parallel with the front cavity sound hole sound resistance 32 . In practical application, the current impedance Zx of the earphone can be the sum of the resistance of the voice coil DC resistance 30 and the sound resistance 32 of the front cavity sound hole, the voice coil DC resistance 30 is a fixed value, and the front cavity sound hole sound resistance 32 The value of is related to the blockage of the sound outlet of the earphone.

Specifically, when the sound outlet of the earphone is blocked by debris such as dust, oil, etc., the sound resistance 32 of the sound outlet of the front cavity will increase, and the more seriously the sound outlet of the earphone is blocked, The larger the value of the acoustic resistance 32 of the sound hole in the front cavity is, the correspondingly the current impedance Zx of the earphone is also larger.

In practical applications, the earphone may include a left sub-earphone and a right sub-earphone. The equivalent circuit of the earphone shown in FIG. 3 may be the equivalent circuit of the left sub-earphone or the equivalent circuit of the right sub-earphone. That is to say, the sub-earphones of the earphone correspond to a separate current impedance respectively. In the embodiment of the present invention, only one sub-earphone in the earphone is used as an example for description, and the other sub-earphones in the earphone refer to the execution Can.

In this embodiment of the present invention, when the earphone is connected to the mobile terminal, the current impedance of the mobile terminal can be automatically acquired.

FIG. 4 is a flowchart of steps of a method for obtaining a current impedance of an earphone provided by an embodiment of the present invention. As shown in Figure 4, the method may include:

Step 1021: Send a second AC signal to the earphone when the earphone is not performing audio transmission.

In this embodiment of the present invention, the situation where the headset does not perform audio transmission may be a situation where the headset is connected to the mobile terminal but does not perform audio transmission, that is, the headset does not emit audio.

In practical applications, when the earphone does not perform audio transmission, a second AC signal may be sent to the earphone. Specifically, the second AC signal may be a voltage signal or a current signal.

In an optional embodiment of the present invention, the second AC signal may be sent to the earphone at a preset frequency, so as to improve the accuracy of the acquired current impedance. Specifically, the preset frequency may be once every 10 minutes, once every 20 minutes, or other frequencies, and the embodiment of the present invention does not specifically limit the preset frequency.

Step 1022: Determine the current impedance of the earphone according to the second feedback signal of the earphone.

In practical applications, after the second AC signal is sent to the earphone, the earphone will feed back a second feedback signal, and the current impedance of the earphone can be determined according to the second feedback signal.

For example, in the case where the second AC signal is a voltage signal, the earphone can feed back a feedback current signal according to the voltage signal, and the feedback current signal is the second feedback signal, according to the voltage signal and the ratio of the feedback current signal, the current impedance of the earphone can be determined.

For another example, when the second AC signal is a current signal, the earphone can feed back a feedback voltage signal according to the current signal, and the feedback voltage signal is the second feedback signal, according to the feedback The ratio of the voltage signal to the current signal can determine the current impedance of the earphone.

Step 103: Determine the target gain of the earphone according to the current impedance and the initial impedance.

In the embodiment of the present invention, according to the current impedance and the initial impedance of the earphone, the blockage of the sound outlet of the earphone can be determined, and according to the blockage, a target gain matching the blockage is determined. In practical applications, the target gain may be a gain that enables the earphone to achieve better sound output. Specifically, the method for determining the target gain of the earphone may be as follows.

FIG. 5 is a flowchart of steps of a method for determining a target gain of an earphone provided by an embodiment of the present invention. As shown in FIG. 5 , the method may specifically include:

Step 1031: Determine an impedance difference between the current impedance and the initial impedance according to the current impedance and the initial impedance.

In this embodiment of the present invention, the impedance difference value may be obtained according to the current impedance and the initial impedance. Specifically, the impedance difference value may be used to evaluate the degree of change of the current impedance of the earphone relative to the initial impedance, That is, the impedance can more accurately evaluate the blockage of the sound outlet of the earphone.

Step 1032: Determine a target gain matching the impedance difference; wherein, the matching relationship between the impedance difference and the target gain is pre-stored.

In practical applications, for different types of earphones, there are often differences in the sound pressure level criteria for evaluating their excellent sound output. However, for the same type of headphones, the criteria for evaluating their superior sound output are often the same. For example, for a type A earphone, the better sound output effect may be 80-100dB for its boost level.

In a specific application, the gain of the earphone can be adjusted, so that the earphone can achieve a better sound output effect. In the embodiment of the present invention, the gain that enables the earphone to achieve a better initial sound effect is the target gain.

In practical applications, the degree of blockage of the sound outlet of the earphone is different, and the corresponding target gain is also different. Since the impedance difference value of the earphone can more accurately evaluate the degree of blockage of the sound outlet of the earphone, in practical application, the corresponding relationship between the impedance difference value and the target gain can be stored in advance.

For example, if the impedance difference of the antenna is measured to be 4 ohms and the target gain is 20 decibels, the corresponding relationship between the impedance difference of 4 ohms and the target gain of 20 decibels can be stored in advance .

In the embodiment of the present invention, according to the impedance difference, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve better performance under the degree of blockage. The target gain of the sound-out effect.

Step 104: Send the target power matching the target gain to the earphone.

In this embodiment of the present invention, a target power matching the target gain may be sent to the earphone, and specifically, the target power is a power that enables the earphone to achieve the target gain.

In practical applications, the matching relationship between the target gain and the target power can be stored in advance, so that after the target gain of the earphone is determined, the target power matching the target gain can be called, and The target power is sent to the headset.

For example, if the target output power that enables the earphone to achieve a target gain of 20 decibels is 5 watts, the matching relationship between the target gain of 20 decibels and the target output power of 5 watts can be pre-stored, and after determining When the target gain is 20 decibels, the matching target output power of 5 watts can be called, and the target power of 5 watts can be output to the earphone, so that the earphone can achieve the target gain of 20 decibels, To achieve better sound effect.

In the embodiment of the present invention, since the target power can enable the earphone to achieve the target gain, the earphone can achieve a better sound output effect, and avoid the earphone from being caused by the blockage of the sound outlet hole. The problem of volume drop improves the user's experience of using headphones.

To sum up, the headphone adjustment method according to the embodiment of the present invention at least includes the following advantages:

In this embodiment of the present invention, when the earphone is connected to the mobile terminal for the first time, the initial impedance of the earphone can be determined; and the current impedance of the earphone can be obtained. According to the current impedance and the initial impedance, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve a better output under the degree of blockage. The target gain of the sound effect; and the target output power that enables the earphone to achieve the target gain is sent to the earphone, so as to adjust the volume of the earphone. In this way, the earphone can achieve a better sound output effect, avoid the problem of the volume drop of the earphone due to the blockage of the sound outlet hole, and improve the user's experience of using the earphone.

Embodiment 2

FIG. 6 is the second flowchart of the method for implementing volume adjustment using electrical parameters provided by an embodiment of the present invention. The method can be applied to a mobile terminal, and an earphone is connected to the mobile terminal. As shown in FIG. 6 , the method may include:

Step 601: Determine the initial impedance of the earphone.

Step 602: Obtain the current impedance of the earphone.

Step 603: Determine the target gain of the earphone according to the current impedance and the initial impedance.

Step 604: Send the target power matching the target gain to the earphone.

Step 605: When the impedance difference between the current impedance and the initial impedance is greater than a preset value, send a prompt message to prompt the user that the earphone is abnormal.

In this embodiment of the present invention, since the impedance difference between the current impedance and the initial impedance can be used to evaluate the degree of blockage of the sound outlet of the earphone, when the impedance difference is greater than a preset value, the It is considered that the sound outlet of the earphone has been blocked in a large area, the blockage of the sound outlet of the earphone has been relatively serious, and it is difficult to improve the sound output effect of the earphone by increasing the gain of the earphone, At this time, a prompt message may be issued to remind the user that the earphone is abnormal, so as to remind the user to repair or replace the earphone in time, so as to avoid the user from continuing to use the earphone with serious blockage, and further improve the user's use experience.

In practical applications, those skilled in the art can set the specific value of the preset value according to the type of the earphone and the actual use requirement of the earphone. For example, the value of the preset value may be a value such as 10 ohms, 20 ohms, 25 ohms, and the like, and the specific value of the preset value may not be limited in this embodiment of the present invention.

To sum up, the headphone adjustment method according to the embodiment of the present invention at least includes the following advantages:

In this embodiment of the present invention, when the earphone is connected to the mobile terminal for the first time, the initial impedance of the earphone can be determined; and the current impedance of the earphone can be obtained. According to the current impedance and the initial impedance, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve a better output under the degree of blockage. The target gain of the sound effect; and the target output power that enables the earphone to achieve the target gain is sent to the earphone. In this way, the earphone can achieve a better sound output effect, avoid the problem of the volume drop of the earphone due to the blockage of the sound outlet hole, and improve the user's experience of using the earphone.

In the embodiment of the present invention, when the impedance difference is greater than the preset value, it can be considered that the sound outlet of the earphone has been blocked in a large area, and the blockage of the sound outlet of the earphone has been serious. It is difficult to improve the sound output effect of the earphone by increasing the gain of the earphone. At this time, a prompt message can be sent to remind the user that the earphone is abnormal, so as to remind the user to repair or replace the earphone in time, so as to prevent the user from continuing to use the earphone. earphones to further enhance the user experience.

Embodiment 3

FIG. 7 is one of the block diagrams of a mobile terminal provided by an embodiment of the present invention. A headset is connected to the mobile terminal. As shown in FIG. 7 , the mobile terminal 700 may include:

The initial impedance determination module 701 is configured to determine the initial impedance of the earphone.

The current impedance obtaining module 702 is configured to obtain the current impedance of the earphone.

A target gain determination module 703, configured to determine the target gain of the earphone according to the current impedance and the initial impedance.

A target power output module 704, configured to send the target power matching the target gain to the earphone.

To sum up, the mobile terminal provided by the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiment of FIG. 1 , and to avoid repetition, details are not described here. The mobile terminal may include at least the following advantages:

In this embodiment of the present invention, when the earphone is connected to the mobile terminal, the initial impedance of the earphone can be determined; and the current impedance of the earphone can be obtained. According to the current impedance and the initial impedance, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve a better output under the degree of blockage. The target gain of the sound effect; and the target output power that enables the earphone to achieve the target gain is sent to the earphone. In this way, the earphone can achieve a better sound output effect, avoid the problem of the volume drop of the earphone due to the blockage of the sound outlet hole, and improve the user's experience of using the earphone.

Embodiment 4

FIG. 8 is the second block diagram of a mobile terminal provided by an embodiment of the present invention. A headset is connected to the mobile terminal. As shown in FIG. 8 , the mobile terminal 800 may include:

The initial impedance determination module 801 is configured to determine the initial impedance of the earphone.

The current impedance obtaining module 802 is configured to obtain the current impedance of the earphone.

The target gain determination module 803 is configured to determine the target gain of the earphone according to the current impedance and the initial impedance.

A target power output module 804, configured to send the target power matching the target gain to the earphone.

The warning module 805 is configured to issue an earphone blockage warning when the impedance difference between the current impedance and the initial impedance is greater than a preset value.

Optionally, the initial impedance determination module 801 may include:

The earphone type determination sub-module 8011 is used to determine the type of the earphone.

The initial impedance determination sub-module 8012 is configured to determine the initial impedance of the earphone according to the type of the earphone.

Optionally, the current impedance acquisition module 802 may include:

The signal sending sub-module 8021 is configured to send a second AC signal to the earphone when the earphone does not perform audio transmission.

The current impedance determination sub-module 8022 is configured to determine the current impedance of the earphone according to the second feedback signal of the earphone.

Optionally, the target gain determination module 803 may include:

an impedance difference value determination sub-module 8031, configured to determine an impedance difference value between the current impedance and the initial impedance according to the current impedance and the initial impedance;

The target gain determination sub-module 8032 is configured to determine a target gain matching the impedance difference value; wherein, the matching relationship between the impedance difference value and the target gain is pre-stored.

To sum up, the mobile terminal provided in the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiment of FIG. 6 , and to avoid repetition, details are not repeated here. The mobile terminal may include at least the following advantages:

In this embodiment of the present invention, when the earphone is connected to the mobile terminal for the first time, the initial impedance of the earphone can be determined; and the current impedance of the earphone can be obtained. According to the current impedance and the initial impedance, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve a better output under the degree of blockage. The target gain of the sound effect; and the target output power that enables the earphone to achieve the target gain is sent to the earphone. In this way, the earphone can achieve a better sound output effect, avoid the problem of the volume drop of the earphone due to the blockage of the sound outlet hole, and improve the user's experience of using the earphone.

In the embodiment of the present invention, when the impedance difference is greater than the preset value, it can be considered that the sound outlet of the earphone has been blocked in a large area, and the blockage of the sound outlet of the earphone has been serious. It is difficult to improve the sound output effect of the earphone by increasing the gain of the earphone. At this time, a prompt message can be sent to remind the user that the earphone is abnormal, so as to remind the user to repair or replace the earphone in time, so as to prevent the user from continuing to use the earphone. earphones to further enhance the user experience.

Embodiment 5

9 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention,

The mobile terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910 and a power supply 911 and other parts. Those skilled in the art can understand that the structure of the mobile terminal shown in FIG. 9 does not constitute a limitation on the mobile terminal, and the mobile terminal may include more or less components than the one shown, or combine some components, or different components layout. In this embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 910 is configured to determine the initial impedance of the earphone.

The processor 910 is configured to acquire the current impedance of the earphone.

The processor 910 is configured to determine the target gain of the earphone according to the current impedance and the initial impedance.

The processor 910 is configured to send the target power matching the target gain to the earphone.

To sum up, the mobile terminal can determine the initial impedance of the earphone and obtain the current impedance of the earphone. According to the current impedance and the initial impedance, not only the degree of blockage of the earphone can be determined, but also according to the degree of blockage of the earphone, it can be concluded that the earphone can achieve a better output under the degree of blockage. The target gain of the sound effect; and the target output power that enables the earphone to achieve the target gain is sent to the earphone. In this way, the earphone can achieve a better sound output effect, avoid the problem of the volume drop of the earphone due to the blockage of the sound outlet hole, and improve the user's experience of using the earphone.

It should be understood that, in this embodiment of the present invention, the radio frequency unit 901 can be used for receiving and sending signals during sending and receiving of information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 910; The uplink data is sent to the base station. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides the user with wireless broadband Internet access through the network module 902, such as helping the user to send and receive emails, browse web pages, access streaming media, and the like.

The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into audio signals and output as sound. Also, the audio output unit 903 may also provide audio output related to a specific function performed by the mobile terminal 900 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.

The input unit 904 is used to receive audio or video signals. The input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, and the graphics processor 9041 captures images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode data is processed. The processed image frames may be displayed on the display unit 906 . The image frames processed by the graphics processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902 . The microphone 9042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 901 for output in the case of a telephone call mode.

The mobile terminal 900 also includes at least one sensor 905, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 9061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 9061 and the proximity sensor when the mobile terminal 900 is moved to the ear. / or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of mobile terminals (such as horizontal and vertical screen switching, related games , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, Infrared sensors, etc., are not repeated here.

The display unit 906 is used to display information input by the user or information provided to the user. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 907 may be used to receive input numerical or character information, and generate key signal input related to user settings and function control of the mobile terminal. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072 . The touch panel 9071, also referred to as a touch screen, can collect touch operations by the user on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 9071). operate). The touch panel 9071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 910, the command sent by the processor 910 is received and executed. In addition, the touch panel 9071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 9071 , the user input unit 907 may also include other input devices 9072 . Specifically, other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Further, the touch panel 9071 can be overlaid on the display panel 9061. When the touch panel 9071 detects a touch operation on or near it, it transmits it to the processor 910 to determine the type of the touch event, and then the processor 910 determines the type of the touch event according to the touch The type of event provides a corresponding visual output on the display panel 9061. Although in FIG. 9, the touch panel 9071 and the display panel 9061 are used as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated The input and output functions of the mobile terminal are implemented, which is not specifically limited here.

The interface unit 908 is an interface for connecting an external device to the mobile terminal 900 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 908 may be used to receive input (eg, data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 900 or may be used between the mobile terminal 900 and the external Transfer data between devices.

The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 909 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 910 is the control center of the mobile terminal, uses various interfaces and lines to connect various parts of the entire mobile terminal, runs or executes the software programs and/or modules stored in the memory 909, and calls the data stored in the memory 909. , perform various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole. The processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 910.

The mobile terminal 900 may also include a power supply 911 (such as a battery) for supplying power to various components. Preferably, the power supply 911 may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. and other functions.

In addition, the mobile terminal 900 includes some unshown functional modules, which are not repeated here.

Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 910 , a memory 909 , a computer program stored in the memory 909 and running on the processor 910 , when the computer program is executed by the processor 910 The various processes of the above-mentioned method embodiments for realizing volume adjustment by using electrical parameters are realized, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process of the foregoing method embodiment for implementing volume adjustment by using electrical parameters is implemented, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present invention, without departing from the spirit of the present invention and the scope protected by the claims, many forms can be made, which all belong to the protection of the present invention.

Claims (9)

1. A method for realizing volume adjustment by using electric parameters is applied to a mobile terminal, and an earphone is connected to the mobile terminal, and the method is characterized by comprising the following steps:

determining an initial impedance of the headset in case the headset is first connected to the mobile terminal;

obtaining the current impedance of the earphone;

determining a target gain of the earphone according to the current impedance and the initial impedance;

transmitting a target power matched with the target gain to the headset;

wherein the step of determining a target gain of the headset from the current impedance and the initial impedance comprises:

determining an impedance difference between the current impedance and the initial impedance according to the current impedance and the initial impedance;

Determining a target gain matched to the impedance difference; wherein the matching relationship between the impedance difference value and the target gain is pre-stored;

the step of determining an initial impedance of the earpiece comprises:

determining a type of the headset;

determining an initial impedance of the headset according to the type of the headset;

the determining the type of the headset comprises:

receiving the type of the earphone manually input by a user on a setting interactive interface of the mobile terminal; the target gain is the gain of the earphone for realizing the target sound output effect; and sound pressure level standards corresponding to the target sound output effects of different types of earphones are different.

2. The method of claim 1, wherein the step of determining an initial impedance of the headset comprises:

when the earphone is accessed for the first time, a first alternating current signal is sent to the earphone;

determining the current impedance of the earphone according to the first feedback signal of the earphone.

3. The method of claim 1, further comprising, after the step of obtaining the current impedance of the headset:

and sending prompt information to prompt the user that the earphone is abnormal when the impedance difference value between the current impedance and the initial impedance is greater than a preset value.

4. The method of claim 1, wherein the step of obtaining the current impedance of the headset comprises:

sending a second alternating current signal to the earphone under the condition that the earphone does not carry out audio transmission;

and determining the current impedance of the earphone according to the second feedback signal of the earphone.

5. The method of claim 4, wherein the second AC signal is a voltage signal or a current signal;

the step of determining the current impedance of the earphone according to the second feedback signal comprises:

acquiring a feedback current signal fed back by the earphone according to the voltage signal, or acquiring a feedback voltage signal fed back by the earphone according to the current signal;

and determining the current impedance of the earphone according to the ratio of the voltage signal to the feedback current signal or the ratio of the feedback voltage signal to the current signal.

6. A mobile terminal to which a headset is attached, comprising:

the initial impedance determining module is used for determining the initial impedance of the earphone under the condition that the earphone is connected to the mobile terminal for the first time;

A current impedance obtaining module, configured to obtain a current impedance of the earphone;

a target gain determination module, configured to determine a target gain of the earphone according to the current impedance and the initial impedance;

a target power output module for sending a target power matched with the target gain to the earphone;

wherein the target gain determination module comprises:

the impedance difference value determining submodule is used for determining an impedance difference value between the current impedance and the initial impedance according to the current impedance and the initial impedance;

a target gain determination submodule for determining a target gain matched to the impedance difference; wherein the matching relationship between the impedance difference value and the target gain is pre-stored;

the mobile terminal is further used for determining the type of the earphone;

determining an initial impedance of the headset according to the type of the headset;

the determining the type of the headset comprises:

receiving the type of the earphone manually input by a user on a setting interactive interface of the mobile terminal; the target gain is the gain of the earphone for realizing the target sound output effect; and sound pressure level standards corresponding to the target sound output effects of different types of earphones are different.

7. The mobile terminal of claim 6, further comprising:

and the warning module is used for sending out prompt information to prompt a user that the earphone is abnormal when the impedance difference value between the current impedance and the initial impedance is greater than a preset value.

8. A mobile terminal comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing a method for volume adjustment using electrical parameters according to any one of claims 1 to 5.

9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of carrying out volume adjustment using an electrical parameter according to any one of claims 1 to 5.

Images