CN113099335A - Method and device for adjusting audio parameters of earphone, electronic equipment and earphone - Google Patents

Abstract

The disclosure relates to a method and a device for adjusting audio parameters of an earphone, electronic equipment and the earphone. The method comprises the following steps: acquiring an original audio signal; filtering sound signals in the original audio signals to obtain ultrasonic signals; the ultrasonic wave signal comprises a first audio signal which is not reflected and a second audio signal which is reflected; acquiring an amplitude difference and a phase difference of the first audio signal and the second audio signal; acquiring an audio grade corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference; and when the audio level is a level other than the target level, adjusting the audio parameters of the earphone based on the audio level until the audio level acquired later becomes the target level. This embodiment can reach the same audio frequency and have the same effect of listening to different users through the audio frequency parameter of adjustment earphone, can promote user experience. Moreover, the audio parameters of the earphone can be synchronously adjusted when the user listens to the audio, so that the use of the user is not influenced, and the user experience can be further improved.

Description

Method and device for adjusting audio parameters of earphone, electronic device, earphone

technical field

The present disclosure relates to the field of audio technology, and in particular, to a method and device for adjusting audio parameters of an earphone, an electronic device, and an earphone.

Background technique

At present, many users like to wear headphones in public places or when exercising, and use the headphones to listen to music or make calls. Usually, the configuration of the earphones is fixed, that is, for each user, the configuration parameters of the earphones of the same model are the same. However, each user's ears are different, and they have different hearing experience for the same audio. For example, some users sound just right, some users think the sound is loud, and some users think the sound is small, thus reducing the sound. user experience.

SUMMARY OF THE INVENTION

The present disclosure provides a method and device for adjusting audio parameters of an earphone, an electronic device, and an earphone, so as to solve the deficiencies of the related art.

According to a first aspect of the embodiments of the present disclosure, there is provided a method for adjusting audio parameters of an earphone, suitable for electronic equipment, including:

Acquiring original audio signals; the original audio signals include ultrasonic signals and sound signals;

Filtering out the sound signal in the original audio signal to obtain the ultrasonic signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal;

acquiring the amplitude difference and phase difference between the first audio signal and the second audio signal;

Obtain the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference;

When the audio level is a level other than the target level, the audio parameters of the earphone are adjusted based on the audio level until the acquired audio level becomes the target level.

Optionally, acquiring the amplitude difference and phase difference between the first audio signal and the second audio signal includes:

obtaining the original waveform of the ultrasonic data played by the earphone;

Based on the pre-established relationship between the original waveform and the first audio signal, the first audio signal is extracted from the ultrasonic signal, and the difference waveform between the actual waveform of the audio signal and the original waveform is obtained, and the using the difference waveform as the second audio signal;

Obtain the amplitude difference and phase difference of the first audio signal and the second audio signal; the amplitude difference is used to represent the amplitude attenuation degree of the ear canal to the first audio signal, and the phase difference is used is used to represent the degree of delay of the first audio signal by the depth of the eardrum in the ear.

Optionally, acquiring the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference includes:

Obtain a preset amplitude difference threshold and a preset phase difference threshold;

Comparing the amplitude difference with the amplitude difference threshold and the phase difference with the phase difference threshold, respectively obtaining a first comparison result and a second comparison result;

The audio level of the ear wearing the earphone is obtained according to the first comparison result and the second comparison result.

Optionally, obtaining the audio level of the ear wearing the earphone according to the first comparison result and the second comparison result includes:

When the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, determining that the audio level is the first level; or,

When the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, or the first comparison result indicates that the When the amplitude difference is less than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, it is determined that the audio level is the second level; or,

When the first comparison result indicates that the amplitude difference is smaller than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, the audio level is determined to be a third level.

Optionally, adjusting the audio parameters of the headset based on the audio level, until the audio level acquired thereafter becomes the target level, including:

When the audio level is the first level, a control signal is sent to the earphone, and the earphone adjusts the cavity structure of the earphone in response to the control signal, so that the subsequently acquired audio level changes from the first level to second level.

Optionally, adjusting the cavity structure of the earphone includes:

The movable device in the earphone is moved to a target position, and the space of the cavity is increased or decreased after the movable device reaches the target position.

Optionally, adjusting the audio parameters of the headset based on the audio level, until the audio level acquired thereafter becomes the target level, including:

When the audio level is the second level, the frequency response characteristics are adjusted to perform amplitude adjustment and frequency equalization on the sound waves emitted by the speaker, until the acquired audio level changes from the second level to the third level. The third level is the target level.

Optionally, adjusting the audio parameters of the headset based on the audio level, until the audio level acquired thereafter becomes the target level, including:

Obtain a list of historical users who use the headset; the historical user list includes the corresponding amplitude difference, phase difference, audio level and audio parameters corresponding to the target level of the ear;

Obtain a target level and corresponding audio parameters according to the audio level, the amplitude difference and the phase difference;

The audio parameters of the earphones are adjusted to the audio parameters corresponding to the target level, so that the audio level acquired later becomes the target level.

Optionally, before acquiring the amplitude difference and phase difference between the first audio signal and the second audio signal, the method further includes:

If the amplitude of the second audio signal is less than the preset amplitude threshold, it is determined that the audio parameters of the earphone do not need to be adjusted; if the amplitude of the second audio signal is greater than the preset amplitude threshold, continue to execute the acquisition of the The step of the amplitude difference and the phase difference between the first audio signal and the second audio signal.

According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for adjusting audio parameters of an earphone, suitable for electronic equipment, including:

an original signal acquisition module for acquiring an original audio signal; the original audio signal includes an ultrasonic signal and a sound signal;

an audio signal acquisition module, configured to filter out the sound signal in the original audio signal to obtain the ultrasonic signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal;

an amplitude difference obtaining module, configured to obtain the amplitude difference and phase difference between the first audio signal and the second audio signal;

an audio level acquisition module, configured to acquire the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference;

An audio parameter adjustment module, configured to adjust the audio parameters of the earphone based on the audio level when the audio level is a level other than the target level, until the audio level acquired thereafter becomes the target level.

Optionally, the amplitude difference acquisition module includes:

an original waveform acquisition unit for acquiring the original waveform of the ultrasonic data played by the earphone;

An audio signal acquiring unit, configured to extract the first audio signal from the ultrasonic signal based on the relationship between the original waveform and the first audio signal established in advance, and acquire the actual waveform and the original waveform of the audio signal The difference waveform of , using the difference waveform as the second audio signal;

an amplitude difference acquiring unit, configured to acquire the amplitude difference and phase difference of the first audio signal and the second audio signal; the amplitude difference is used to represent the amplitude attenuation of the first audio signal by the ear canal degree, the phase difference is used to represent the degree of delay of the first audio signal by the depth of the eardrum in the ear.

Optionally, the audio level acquisition module includes:

an amplitude-phase threshold acquisition unit, configured to acquire a preset amplitude difference threshold and a preset phase difference threshold;

a comparison result obtaining unit, configured to compare the amplitude difference with the amplitude difference threshold and the phase difference with the phase difference threshold, to obtain a first comparison result and a second comparison result respectively;

An audio level determination unit, configured to obtain the audio level of the ear wearing the earphone according to the first comparison result and the second comparison result.

Optionally, the audio level determination unit includes:

a first determining unit, configured to determine the The audio level is Level 1; or,

a second determining unit, configured to: when the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, or, the When the first comparison result indicates that the amplitude difference is less than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, the audio level is determined to be the second level; or,

a third determining unit, configured to determine the The audio level is the third level.

Optionally, the audio parameter adjustment module includes:

a control signal sending unit, configured to send a control signal to the earphone when the audio level is the first level, and the earphone adjusts the cavity structure of the earphone in response to the control signal, so that the audio frequency acquired later The level changes from the first level to the second level.

Optionally, the audio parameter adjustment module includes:

The parameter adjustment unit is used to adjust the frequency response characteristics when the audio level is the second level, so as to perform amplitude adjustment and frequency equalization on the sound waves emitted by the speaker, until the audio level obtained after that changes from the second level to the second level. is the third level, and the third level is the target level.

Optionally, adjusting the audio parameters of the headset based on the audio level, until the audio level acquired thereafter becomes the target level, including:

A history list obtaining unit, used for obtaining the history user list using the headset; the history user list includes the corresponding amplitude difference, phase difference, audio level and audio parameters corresponding to the target level of the ear;

an audio parameter acquiring unit, configured to acquire a target level and corresponding audio parameters according to the audio level, the amplitude difference and the phase difference;

The audio parameter adjustment unit is configured to adjust the audio parameter of the earphone to the audio parameter corresponding to the target level, so that the audio level obtained later becomes the target level.

Optionally, the device further includes an acquisition module, which is configured to determine that the audio parameters of the earphone do not need to be adjusted when the amplitude of the second audio signal is less than a preset amplitude threshold, and send the audio signal to the audio signal. The acquisition module sends a trigger signal; and when the amplitude of the second audio signal is greater than the preset amplitude threshold, sends a trigger signal to the amplitude difference acquisition module.

According to a third aspect of the embodiments of the present disclosure, an electronic device is provided, including a processor, an audio module, a superimposition circuit, and an ultrasonic transmitter; the processor is respectively connected with the superposition circuit, the ultrasonic transmitter, and the ultrasonic transmitter. The audio module is electrically connected; the audio module and the superimposed circuit are electrically connected;

The processor is configured to enable the ultrasonic transmitter after the earphone is paired with the electronic device, so that the ultrasonic driving signal sent by the ultrasonic transmitter is sent to the earphone through the superposition circuit;

The audio module is configured to output audio data to the superimposing circuit in response to an enable signal of the processor;

The superposition circuit is used for superimposing the ultrasonic driving signal and the audio data to output a mixed signal.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an earphone, comprising:

a loudspeaker for emitting ultrasonic waves and sound waves;

A movable device arranged in the cavity of the earphone; the movable device is used to adjust the size of the cavity;

The ultrasonic receivers are respectively arranged in each channel; the ultrasonic receiver is used to obtain the original audio signal of the channel and output it to the electronic device, and the original audio signal includes the ultrasonic signal and the sound signal;

A processor electrically connected to the movable device; the processor is used to adjust the cavity structure of the earphone in response to a control signal from the electronic device, so that the audio level acquired later changes from the first level to the second level grade.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a readable storage medium on which executable instructions are stored, and when the executable instructions are executed by a processor, implement the steps of any one of the methods in the first aspect.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

It can be known from the above embodiments that in the embodiments of the present disclosure, an ultrasonic signal can be obtained by filtering out the sound signal in the original audio signal; the ultrasonic signal includes an unreflected first audio signal and a reflected second audio signal; Then, the amplitude difference and phase difference of the first audio signal and the second audio signal are obtained; then, the audio level corresponding to the ear where the earphone is located can be obtained based on the amplitude difference and the phase difference; finally, the audio level is At a level other than the target level, the audio parameters of the headset are adjusted based on the audio level until the acquired audio level becomes the target level. In this embodiment, by adjusting the audio parameters of the earphone, the amplitude and phase of the sound emitted by the earphone can be matched with the ear, so as to achieve the effect that the audio level of the ear matches the target level, that is, the same audio can be used for different users. The same listening effect can improve the user experience. Moreover, in this embodiment, the audio parameters of the earphone can be adjusted synchronously when the user listens to the audio, which does not affect the use of the user, and can further improve the user experience.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram illustrating an application scenario according to an exemplary embodiment.

FIG. 2 is a structural diagram of an electronic device and an earphone according to an exemplary embodiment.

Fig. 3 is a flow chart of a method for adjusting audio parameters of an earphone according to an exemplary embodiment.

Fig. 4 is a flow chart showing the acquisition of the amplitude difference and the phase difference according to an exemplary embodiment.

Fig. 5 is a flow chart of acquiring audio level according to an exemplary embodiment.

Fig. 6 is a flowchart showing an audio adjustment according to an exemplary embodiment.

FIG. 7 is a flowchart illustrating another audio adjustment according to an exemplary embodiment.

FIG. 8 is a flow chart illustrating adjusting audio parameters according to an exemplary embodiment.

9 to 14 are block diagrams of an apparatus for adjusting audio parameters of an earphone according to an exemplary embodiment.

Fig. 15 is a block diagram of an electronic device according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of the present disclosure, as recited in the appended claims.

At present, many users like to wear headphones in public places or when exercising, and use the headphones to listen to music or make calls. Usually, the configuration of the earphones is fixed, that is, for each user, the configuration parameters of the earphones of the same model are the same. However, each user's ears are different, and they have different hearing experience for the same audio. For example, some users sound just right, some users think the sound is loud, and some users think the sound is small, thus reducing the sound. user experience.

In order to solve the above technical problems, an embodiment of the present disclosure provides a method for adjusting the audio parameters of an earphone. Referring to FIG. 1 , the inventive concept is that by setting the ultrasonic receiver 12 on the earphone 10, after the earphone is worn on the ear, use The echo receiving device 12 can receive the ultrasonic wave 111 emitted by the speaker 11 in the earphone, the ultrasonic wave 112 reflected after passing through the ear canal and/or the eardrum, and the sound wave signal to obtain the original audio signal. The audio module in the electronic device can obtain the above-mentioned original audio signal, and the ultrasonic signal can be obtained by filtering the sound signal in the original audio signal. Then separate the first audio signal and the second audio signal from the ultrasonic signal, and obtain the amplitude difference and phase difference between the first audio signal and the second audio signal; and determine the ear where the earphone is located according to the amplitude difference and phase difference the corresponding audio level. Finally, the audio module can adjust the audio parameters of the headset based on the audio level, so that the audio level obtained later can be adjusted to the target level. In this embodiment, by adjusting the audio parameters of the earphone, the amplitude and phase of the sound emitted by the earphone can be matched with the ear, so as to achieve the effect that the audio level of the ear matches the target level, that is, the same audio can be used for different users. The same listening effect can improve the user experience. Moreover, in this embodiment, the audio parameters of the earphone can be adjusted synchronously when the user listens to the audio, which does not affect the use of the user, and can further improve the user experience.

It should be noted that, in order to better receive ultrasonic signals, continue referring to FIG. 1 , in this embodiment, the ultrasonic receiver 12 can be arranged on the side where the earphone 10 emits ultrasonic waves, so that the unreflected ultrasonic waves can be better received and reflected ultrasonic waves.

It should be noted that the earphones may include at least one of the following: wired earphones, wireless earphones, or digital earphones, analog earphones, headphone or earbud earphones, or a combination thereof. This is not limited. In each embodiment of the present disclosure, earphone type earphones are used as an example to describe their solutions.

In order to realize the above-mentioned inventive concept, corresponding improvements are made to the electronic device and the earphone in an embodiment of the present disclosure. See Figure 2, where:

For the earphone, each channel of the earphone is provided with a speaker, an ultrasonic receiver and a movable device;

After the headset is paired with the electronic device, the pairing can be understood as a wireless connection or a wired connection, that is, establishing an audio data transmission channel. The ultrasonic receiver can be electrically connected with the audio module in the electronic device, and is used to sense the ultrasonic wave from the speaker and the ultrasonic wave reflected by the ear canal and the eardrum, as well as the sound from the speaker playing audio data, and combine the ultrasonic wave with the eardrum. The sound is converted into an original audio signal in the form of an electrical signal and output to the audio module in the electronic device.

The movable device can be electrically connected with the audio module channel in the electronic device, and is used to adjust the cavity structure of the earphone in response to the control command of the audio module, so as to achieve the effect of adjusting the audio level. The speaker can be electrically connected with the audio module channel and the ultrasonic transmitter channel to emit ultrasonic waves and play audio at the same time.

For electronic equipment, the electronic equipment is provided with an audio module, a superposition circuit and an ultrasonic transmitter. The processor is electrically connected with the superposition circuit, the ultrasonic transmitter and the audio module respectively; the audio module and the superposition circuit are electrically connected; the processor is used to enable the ultrasonic transmitter after the earphone is paired with the electronic device, so that the ultrasonic transmitter The sent ultrasonic drive signal is sent to the superposition circuit; the audio module is used to output audio data to the superposition circuit in response to the enable signal of the processor; the superposition circuit is used to superimpose the ultrasonic drive signal and the audio data, and the superimposed The ultrasonic drive signal and audio data are sent to the headset. In addition, the audio module can obtain the original audio signal sent by the earphone and use it as a processor for adjusting the audio parameters of the earphone, that is, the audio module can read executable instructions from the storage medium to execute a method of adjusting the audio parameters of the earphone. step.

The structure shown in FIG. 2 is suitable for headphone type or earplug type headphone, especially suitable for earplug type headphone, which can reduce the volume of the headphone and its production cost. It should be noted that, in practical applications, when the earphone is a headphone, an audio module, a superimposing circuit and an ultrasonic transmitter may also be provided in the earphone, which can also implement the solutions of the embodiments of the present disclosure. Subsequent embodiments are described with the structure shown in FIG. 2 .

A method for adjusting audio parameters of an earphone provided in this embodiment will be further described below with reference to an embodiment.

FIG. 3 is a flow chart of a method for adjusting audio parameters of headphones according to an exemplary embodiment. Referring to FIG. 3, a method for adjusting audio parameters of headphones, suitable for electronic equipment, includes steps 301 to 305, wherein:

In step 301, an original audio signal is obtained; the original audio signal includes an ultrasonic signal and a sound signal.

In this embodiment, continuing to refer to FIG. 2 , the user can pair the headset with the electronic device to establish a communication link between the headset and the electronic device, such as Bluetooth, WIFI, etc., which is not limited here. After pairing, the processor in the electronic device enables the ultrasonic transmitter, so that the ultrasonic transmitter and the superposition circuit will form an ultrasonic output channel, and output the ultrasonic driving signal output by the ultrasonic transmitter to the earphone. The speaker in the earphone can emit ultrasonic waves and radiate to the surroundings according to the ultrasonic driving signal. Similarly, when the processor enables the audio module, the audio module and the superimposing circuit will form an audio data output path to output the audio data driving signal to the earphone. The speaker in the earphone can drive the signal according to the audio data to emit sound and radiate to the surroundings.

It should be noted that, in the above-mentioned embodiments, ultrasonic waves and sound are described separately. In practical applications, an adder can be set in the superposition circuit, and the adder adds the ultrasonic wave drive signal and the audio data drive signal to obtain a mixed Signal. For the specific implementation form of the adder, reference may be made to the related art, which will not be repeated here. Of course, the skilled person can also choose a solution of mixing two audio signals to realize the function of the superimposing circuit, and the corresponding solution falls within the protection scope of the present disclosure.

After the user wears the earphone to the ear, part of the ultrasonic wave directly enters the ultrasonic receiver (that is, without reflection), and the other part propagates into the earphone, and then enters the ultrasonic receiver after the reflection of the ear canal and eardrum (that is, after reflection). . The ultrasonic receiver converts the received ultrasonic signals into mechanical energy and electrical energy, and can obtain ultrasonic audio signals in the form of electrical signals. It can be understood that the converted ultrasonic audio signal may include the unreflected first audio signal and the reflected second audio signal. It is understandable that, for the propagation path of the sound signal, reference may be made to the propagation path of the ultrasonic wave, which will not be repeated here.

Finally, the ultrasonic receiver in the earphone can sense the ultrasonic wave and sound, and the original audio signal can be obtained through the conversion of mechanical energy and electric energy.

In step 302, the sound signal in the original audio signal is filtered out to obtain the ultrasonic signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal.

In this embodiment, according to the frequencies of the sound signal and the ultrasonic signal, the audio module can use a preset filter to filter out the sound signal in the original audio signal to obtain the ultrasonic signal. Wherein, the filter may be a high-pass filter or a band-pass filter in the related art, and in the case that an ultrasonic signal can be selected, each solution falls within the protection scope of the present disclosure.

In step 303, the amplitude difference and the phase difference between the first audio signal and the second audio signal are acquired.

Referring to FIG. 4 , the audio module can obtain the original waveform of the ultrasonic data played by the earphone (corresponding to step 401 ). Considering that there may be a certain attenuation between the original waveform of the ultrasonic wave and the first audio signal, the relationship between the original waveform and the first audio signal can be pre-established to obtain the attenuation amplitude and delay of the original waveform. In this way, The audio module can directly obtain the waveform of the first audio signal when the original waveform is known. Then, the audio module can obtain the actual waveform according to the ultrasonic audio signal, and can directly extract the first audio signal from the actual waveform, and then subtract the waveform of the first audio signal from the actual waveform to obtain the waveform of the second audio signal ( Corresponding to step 402).

It should be noted that other related technologies may also be referred to for the audio signal processing process, and in the case where the first audio signal and the second audio signal can be separated, the corresponding solution falls within the protection scope of the present disclosure.

Continuing to refer to FIG. 4 , the audio module can obtain the amplitude difference and the phase difference between the first audio signal and the second audio signal (corresponding to step 403 ). Wherein, the amplitude difference is used to represent the amplitude attenuation degree of the ear canal to the first audio signal, and the phase difference is used to represent the delay degree of the eardrum depth to the first audio signal. For example, if the first audio signal is Asin(wt+a) and the second audio signal is Bsin(wt+b), the amplitude difference may be -20log(B/A), and the phase difference may be b-a.

It should be noted that, in one embodiment, the audio module can determine the amplitude of the second audio signal, compare the amplitude with a preset amplitude threshold (adjustable), and when the amplitude is less than the amplitude threshold, it means that the ultrasonic receiver has not received the signal. To the reflected ultrasonic waves, it is determined that there is no need to adjust the audio parameters of the headset. When the amplitude is greater than the amplitude threshold, step 303 can be continued to obtain whether the user wears the earphone, and the audio parameter adjustment is performed after the user wears the earphone, which can reduce the amount of calculation.

In step 304, the audio level corresponding to the ear where the earphone is located is acquired based on the amplitude difference and the phase difference.

In this embodiment, the audio module can obtain the audio level corresponding to the ear where the earphone is located according to the amplitude difference and the phase difference. Referring to FIG. 5 , the audio module can obtain a preset amplitude difference threshold and a preset phase difference threshold ( Corresponding to step 501). Among them, the amplitude difference threshold and the phase difference threshold can be obtained by statistics using big data. For example, the amplitude difference threshold can be a proportional value of 20%, and the phase difference can be 5-10 degrees. Of course, a large number of experiments can also be used to confirm how much the amplitude difference and/or the phase difference change is when the ear can feel that the receiving effect is getting worse. The phase difference is used as the amplitude difference threshold and the phase difference threshold, respectively. A technical person can set the amplitude difference threshold and the phase difference threshold according to specific scenarios, and corresponding solutions fall within the protection scope of the present disclosure.

Continuing to refer to FIG. 5 , the audio module can compare the amplitude difference with the amplitude difference threshold and the phase difference with the phase difference threshold to obtain the first comparison result and the second comparison result (corresponding to step 502 ). The first comparison result includes that the amplitude difference is greater than the amplitude difference threshold, or the amplitude difference is smaller than the amplitude difference threshold; the second comparison result includes that the phase difference is smaller than the phase difference threshold, or the phase difference is greater than the phase difference threshold.

Continue to refer to FIG. 5, the audio module can obtain the audio level of the ear wearing the earphone according to the first comparison result and the second comparison result (corresponding to step 503), which may include:

When the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, the audio level is determined to be the first level.

When the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, the audio level is determined to be the second level.

When the first comparison result indicates that the amplitude difference is smaller than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, the audio level is determined to be the second level.

When the first comparison result indicates that the amplitude difference is smaller than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, the audio level is determined to be the third level.

It should be noted that the above embodiment only exemplifies the case where the audio level has three levels, and the technician can increase the corresponding level according to the specific scene. At this time, the number of the amplitude difference threshold and the phase difference threshold can be increased, such as the amplitude When the difference threshold and phase difference threshold are respectively 2, the audio level can be increased to 9. Corresponding solutions fall within the protection scope of the present disclosure.

In step 305, when the audio level is a level other than the target level, the audio parameters of the earphone are adjusted based on the audio level, until the audio level acquired thereafter becomes the target level.

In this embodiment, the third level may be used as the target level, and the audio module determines whether the current audio level is the third level. When the current audio level is the third level, the audio module may not adjust the audio parameters of the headset, Return to step 301; when the current audio level is a level other than the third level, such as the first level or the second level, the audio module determines to adjust the audio level of the earphone.

Referring to FIG. 6, when the audio level is the first level, a control signal is sent to the earphone (corresponding to step 601). After receiving the control signal, the earphone can adjust the cavity structure of the earphone in response to the control signal, so that the audio level acquired later changes from the first level to the second level.

For example, when the audio level corresponding to the ear is the first level, the audio module continues to send a control signal to the earphone, so that the earphone adjusts the cavity structure of the earphone after receiving a control signal until the audio module determines that the audio level is Stop sending control signals after the second level. Wherein, adjusting the cavity structure of the earphone may include controlling a preset moving length to move the movable device in the earphone to the target position according to the control signal, and after the movable device reaches the target position, the space of the cavity will be increased or decreased. The target position may be the position reached after the movable device moves once or the position that should be finally reached, which may be set according to specific scenarios, which is not limited here.

For another example, when the audio module determines that the audio level is the first level, it sends a control signal to the earphone. After receiving the control signal, the earphone can move the movable device according to the preset length to adjust the cavity structure of the earphone, while the audio module can adjust the cavity structure of the earphone. The group obtains the audio level again, until the audio module determines that the audio level is the second level, and then sends a control signal to the earphone once, at which time the earphone stops adjusting the cavity structure.

It should be noted that when the movable device moves close to the eardrum (after the earphone is worn), the cavity structure of the earphone becomes smaller. In this case, the high-frequency effect of the output ultrasonic wave will become better, which is suitable for the high-frequency components in the ultrasonic wave. Sensitive ears, such as short ear canals due to shallow eardrums. When the movable device moves away from the eardrum, the cavity structure of the earphone becomes larger, and the low-frequency effect of the output ultrasonic wave becomes better.

Continue to refer to FIG. 6 , when the audio level is the second level, the audio module can adjust the frequency response characteristics of the speaker to perform amplitude adjustment and frequency equalization on the sound waves emitted by the speaker, until the audio level obtained thereafter is from the second level. It becomes the third level, and the third level is the target level (corresponding to step 602). For example, the audio module adjusts the audio parameters of the speaker driver (that is, the audio module itself) when the audio level is the second level. The adjustment methods can be EQ (Equaliser) and DRC (Dynamic Range Control), so as to adjust the output sound wave of the speaker waveform, and then repeat steps 301 to 304 to obtain the audio level obtained later. If the audio level acquired later is still the second level, the audio parameters are continued to be adjusted, and the audio parameters of the earphone are stopped to be adjusted when the subsequently acquired audio level becomes the third level.

It should be noted that, when the audio level is the first level, the audio module needs to perform steps 601 and 602 . When the audio level is the second level, the audio module needs to perform step 602 . When the audio level is the third level, the audio module can determine not to adjust the audio level.

Considering the situation that multiple users share a headset, a historical user list can be stored in the electronic device or in the headset, and the historical user list can include the corresponding amplitude difference, phase difference, audio level and audio parameters corresponding to the target level. . In one embodiment, after the user wears the earphone, referring to FIG. 7 , the audio module may obtain a list of historical users using the earphone (corresponding to step 701 ). The audio module can be read from the local storage or from the headset, which can be selected according to the storage location, which is not determined here. Then, the audio module may acquire audio parameters corresponding to the target level according to the audio level, amplitude difference, phase difference, and audio level (corresponding to step 702). Afterwards, the audio module may adjust the audio parameters of the earphones to the audio parameters corresponding to the target level, so that the audio level acquired later becomes the target level (corresponding to step 703). In this way, in this embodiment, the user who has used the headset can be identified, and the target level can be achieved through one adjustment, which can shorten the adjustment time and improve the user experience.

So far, in the embodiment of the present disclosure, the ultrasonic signal can be obtained by acquiring and filtering the sound signal in the original audio signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal; then, obtain The amplitude difference and phase difference between the first audio signal and the second audio signal; then, based on the amplitude difference and phase difference, the audio level corresponding to the ear where the earphone is located can be obtained; finally, when the audio level is between the target level. When the audio level is outside, adjust the audio parameters of the headset based on the audio level, until the acquired audio level becomes the target level. In this embodiment, by adjusting the audio parameters of the earphone, the amplitude and phase of the sound emitted by the earphone can be matched with the ear, so as to achieve the effect that the audio level of the ear matches the target level, that is, the same audio can be used for different users. The same listening effect can improve the user experience. Moreover, in this embodiment, the audio parameters of the earphone can be adjusted synchronously when the user listens to the audio, which does not affect the use of the user, and can further improve the user experience.

The method for adjusting the audio parameters of the earphone is described below with reference to a scenario. Referring to FIG. 8 , after the earphone obtains the audio data, it will control the left channel and the right channel to emit ultrasonic waves. Do the same for the left and right channels, taking the left channel as an example:

1. After the user pairs the headset, the processor in the electronic device enables the ultrasonic transmitter to form a path for the ultrasonic transmitter, and outputs the ultrasonic drive signal to the superposition circuit. At the same time, the audio module outputs audio data to the superimposing circuit. The superposition circuit outputs the mixed signal.

2. The speaker emits ultrasonic waves and sound simultaneously in response to the mixed information, and the ultrasonic waves are surface-reflected after encountering the ear canal and eardrum.

3. The speaker receiver of the left channel receives the ultrasonic surface emission signal 1 reflected from the ear canal, and the ultrasonic signal 2 directly transmitted from the speaker to the ultrasonic receiver, and converts the ultrasonic signal 1 and ultrasonic signal 2 into electrical signals 1 (ie the second audio signal) and electrical signal 2 (ie the first audio signal). At the same time, the speaker receiver of the left channel can also receive the sound signal reflected from the ear canal and the sound signal directly transmitted to the ultrasonic receiver. Ultimately, the speaker receiver outputs the original audio signal.

4. The audio module in the electronic equipment first filters out the sound signal in the original audio signal to obtain the ultrasonic signal. Then the audio module obtains the electric signal 1 and electric signal 2 in the ultrasonic signal, and the audio module obtains the amplitude difference and phase difference between the electric signal 1 and the electric signal 2, so that the length of the ear canal and the position of the eardrum can be confirmed, and the audio level (A, B , C).

5. If the audio level is A, the first level of regulation is required, and the audio module sends a control signal to the headset. The movable device in the earphone moves to adjust the cavity structure, so that the cavity gradually changes from small to large, or from large to small. Then repeat the process 1-4 until the audio level is B.

6. If the audio level is B, the audio module implements the second-level regulation, that is, adjusting the EQ and DRC. Repeat the process 1-4 until the adjustment level is C.

In steps 5 and 6, the adjustment goal is to make the ultrasonic wave transmitted to the audio module after the reflection of the ear reaches the expected ideal waveform, and adjust the audio parameters such as EQ and DRC to change the shape of the waveform until it reaches the desired waveform. meet deadline.

7. If the audio level is C, it means that the frequency response matches the user, and the regulation is completed.

An embodiment of the present disclosure further provides an apparatus for adjusting audio parameters of an earphone. FIG. 9 is a block diagram of an apparatus for adjusting audio parameters of an earphone according to an exemplary embodiment. Referring to Fig. 9, an apparatus for adjusting audio parameters of earphones includes:

an original signal acquisition module 901, configured to acquire an original audio signal; the original audio signal includes an ultrasonic signal and a sound signal;

The audio signal acquisition module 902 is configured to filter out the sound signal in the original audio signal to obtain the ultrasonic signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal;

an amplitude difference obtaining module 903, configured to obtain the amplitude difference and phase difference between the first audio signal and the second audio signal;

An audio level acquisition module 904, configured to acquire the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference;

The audio parameter adjustment module 905 is configured to adjust the audio parameter of the earphone based on the audio level when the audio level is a level other than the target level, until the audio level obtained thereafter becomes the target level.

In one embodiment, referring to FIG. 10 , the amplitude difference obtaining module 902 includes:

an original waveform acquiring unit 1001, configured to acquire the original waveform of the ultrasonic data played by the earphone;

An audio signal acquisition unit 1002, configured to extract the first audio signal from the ultrasonic signal based on a pre-established relationship between the original waveform and the first audio signal, and acquire the actual waveform of the audio signal and the original audio signal a difference waveform of the waveform, using the difference waveform as the second audio signal;

Amplitude difference obtaining unit 1003, configured to obtain the amplitude difference and phase difference of the first audio signal and the second audio signal; the amplitude difference is used to represent the amplitude of the ear canal to the first audio signal The attenuation degree, and the phase difference is used to represent the degree of delay of the first audio signal by the depth of the eardrum in the ear.

In one embodiment, referring to FIG. 11 , the audio level obtaining module 904 includes:

Amplitude and phase threshold acquisition unit 1101, configured to acquire a preset amplitude difference threshold and a preset phase difference threshold;

a comparison result obtaining unit 1102, configured to compare the amplitude difference with the amplitude difference threshold and the phase difference with the phase difference threshold, to obtain a first comparison result and a second comparison result respectively;

The audio level determination unit 1103 is configured to obtain the audio level of the ear wearing the earphone according to the first comparison result and the second comparison result.

In one embodiment, referring to FIG. 12 , the audio level determination unit 1103 includes:

A first determining unit 1201, configured to determine the first comparison result when the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold. The audio level is the first level; or,

The second determining unit 1202 is configured to, when the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, or, When the first comparison result indicates that the amplitude difference is less than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, the audio level is determined to be the second level; or,

A third determining unit 1203, configured to determine the The audio level is the third level;

In one embodiment, referring to FIG. 13 , the audio parameter adjustment module 905 includes:

The control signal sending unit 1301 is configured to send a control signal to the earphone when the audio level is the first level, and the earphone adjusts the cavity structure of the earphone in response to the control signal, so that the later acquired The audio level changes from the first level to the second level;

Also includes:

The parameter adjustment unit 1302 is used to adjust the frequency response characteristics of the speaker in the earphone when the audio level is the second level, so as to perform amplitude adjustment and frequency equalization on the sound wave emitted by the speaker, until the acquired The audio level changes from the second level to the third level, which is the target level.

In one embodiment, referring to FIG. 14 , the audio parameter adjustment module 905 includes:

The history list obtaining unit 1401 is used to obtain the history user list using the headset; the history user list includes the corresponding amplitude difference, phase difference, audio level and audio parameters corresponding to the target level of the ear;

An audio parameter obtaining unit 1402, configured to obtain a target level and corresponding audio parameters according to the audio level, the amplitude difference and the phase difference;

The audio parameter adjustment unit 1403 is configured to adjust the audio parameter of the earphone to the audio parameter corresponding to the target level, so that the audio level obtained later becomes the target level.

In an embodiment, before acquiring the amplitude difference and the phase difference between the first audio signal and the second audio signal, the apparatus further includes a detection module, the detection module is used for The amplitude of the audio signal is less than a preset amplitude threshold, it is determined that the audio parameters of the earphone do not need to be adjusted, and a trigger signal is sent to the audio signal acquisition module; and when the amplitude of the second audio signal is greater than the preset amplitude When the threshold value is reached, a trigger signal is sent to the amplitude difference acquisition module.

It is understandable that the apparatuses provided in the embodiments of the present disclosure correspond to the contents of the foregoing method embodiments, and for specific contents, reference may be made to the contents of the respective method embodiments, which will not be repeated here.

So far, in the embodiment of the present disclosure, the ultrasonic signal can be obtained by filtering out the sound signal in the original audio signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal; then, the first audio signal is obtained. The amplitude difference and phase difference between the first audio signal and the second audio signal; after that, the audio level corresponding to the ear where the earphone is located can be obtained based on the amplitude difference and the phase difference; finally, the audio level is outside the target level , adjust the audio parameters of the headset based on the audio level until the acquired audio level becomes the target level. In this embodiment, by adjusting the audio parameters of the earphone, the amplitude and phase of the sound emitted by the earphone can be matched with the ear, so as to achieve the effect that the audio level of the ear matches the target level, that is, the same audio can be used for different users. The same listening effect can improve the user experience. Moreover, in this embodiment, the audio parameters of the earphone can be adjusted synchronously when the user listens to the audio, which does not affect the use of the user, and can further improve the user experience.

Fig. 15 is a block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 1500 may be a smartphone, a computer, a digital broadcasting terminal, a tablet device, a medical device, a fitness device, a personal digital assistant, etc., including a transmitting coil, a first magnetic sensor, and a second magnetic sensor in the device for adjusting the audio parameters of the earphone. .

15, an electronic device 1500 may include one or more of the following components: a processing component 1502, a memory 1504, a power supply component 1506, a multimedia component 1508, an audio component 1510, an input/output (I/O) interface 1512, a sensor component 1514 , a communication component 1516 , and an image acquisition component 1518 .

The processing component 1502 generally handles the overall operations of the electronic device 1500, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. Processing component 1502 can include one or more processors 1520 to execute instructions. Additionally, processing component 1502 may include one or more modules that facilitate interaction between processing component 1502 and other components. For example, processing component 1502 may include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502.

Memory 1504 is configured to store various types of data to support operation at electronic device 1500 . Examples of such data include instructions for any application or method operating on electronic device 1500, contact data, phonebook data, messages, pictures, videos, and the like. Memory 1504 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power supply assembly 1506 provides power to various components of electronic device 1500 . Power supply components 1506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1500 .

The multimedia component 1508 includes a screen that provides an output interface between the electronic device 1500 and the target object. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a target object. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.

Audio component 1510 is configured to output and/or input audio signals. For example, audio component 1510 includes a microphone (MIC) that is configured to receive external audio signals when electronic device 1500 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 1504 or transmitted via communication component 1516 . In some embodiments, audio component 1510 also includes a speaker for outputting audio signals. In addition, the audio component 1510 can also be the earphone shown in FIG. 1 , and the processor MCU in the earphone can implement the steps of the above method.

The I/O interface 1512 provides an interface between the processing component 1502 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like.

Sensor assembly 1514 includes one or more sensors for providing status assessments of various aspects of electronic device 1500 . For example, the sensor assembly 1514 can detect the open/closed state of the electronic device 1500, the relative positioning of the components, such as the display screen and keypad of the electronic device 1500, and the sensor assembly 1514 can also detect the electronic device 1500 or a component The position changes, the presence or absence of the target object in contact with the electronic device 1500 , the orientation or acceleration/deceleration of the electronic device 1500 and the temperature change of the electronic device 1500 .

Communication component 1516 is configured to facilitate wired or wireless communication between electronic device 1500 and other devices. Electronic device 1500 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1516 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1516 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, electronic device 1500 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation.

In an exemplary embodiment, an earphone is also provided, comprising:

a loudspeaker for emitting ultrasonic waves and sound waves;

A movable device arranged in the cavity of the earphone; the movable device is used to adjust the size of the cavity;

The ultrasonic receivers are respectively arranged in each channel; the ultrasonic receiver is used to obtain the original audio signal of the channel and output it to the electronic device, and the original audio signal includes the ultrasonic signal and the sound signal;

A processor electrically connected to the movable device; the processor is used to adjust the cavity structure of the earphone in response to a control signal from the electronic device, so that the audio level acquired later changes from the first level to the second level grade.

It should be noted that the movable device may include a movable device and a power device, wherein the movable device is fixed on the power device. The power device can be a spring or a stepper motor. Taking a stepper motor as an example, the stepper motor can be electrically connected to the processor of the earphone, and drives the movable device to move toward or away from the eardrum (when wearing the earphone) according to the control signal of the processor.

In an exemplary embodiment, a non-transitory readable storage medium including executable instructions, such as memory 1504 including instructions, executable by a processor within an audio component is also provided. The readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the schemes disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosed solutions that follow the general principles of this disclosure and include common knowledge or techniques in the technical field not disclosed by this disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (20)

1. a method for adjusting earphone audio parameters, is characterized in that, is adapted to electronic equipment, comprises: Acquiring original audio signals; the original audio signals include ultrasonic signals and sound signals; Filtering out the sound signal in the original audio signal to obtain the ultrasonic signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal; acquiring the amplitude difference and phase difference between the first audio signal and the second audio signal; Obtain the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference; When the audio level is a level other than the target level, the audio parameters of the earphone are adjusted based on the audio level until the acquired audio level becomes the target level. 2. The method according to claim 1, wherein acquiring the amplitude difference and the phase difference of the first audio signal and the second audio signal comprises: obtaining the original waveform of the ultrasonic data played by the earphone; Based on the pre-established relationship between the original waveform and the first audio signal, the first audio signal is extracted from the ultrasonic signal, and the difference waveform between the actual waveform of the audio signal and the original waveform is obtained, and the using the difference waveform as the second audio signal; Obtain the amplitude difference and phase difference of the first audio signal and the second audio signal; the amplitude difference is used to represent the amplitude attenuation degree of the ear canal to the first audio signal, and the phase difference is used is used to represent the degree of delay of the first audio signal by the depth of the eardrum in the ear. 3. The method according to claim 1, wherein obtaining the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference, comprising: Obtain a preset amplitude difference threshold and a preset phase difference threshold; Comparing the amplitude difference with the amplitude difference threshold and the phase difference with the phase difference threshold, respectively obtaining a first comparison result and a second comparison result; The audio level of the ear wearing the earphone is obtained according to the first comparison result and the second comparison result. 4. The method according to claim 3, wherein obtaining the audio level of the ear wearing the earphone according to the first comparison result and the second comparison result, comprising: When the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, determining that the audio level is the first level; or, When the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, or the first comparison result indicates that the When the amplitude difference is less than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, it is determined that the audio level is the second level; or, When the first comparison result indicates that the amplitude difference is smaller than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, the audio level is determined to be a third level. 5. The method according to claim 1, wherein adjusting the audio parameters of the earphone based on the audio level until the audio level acquired thereafter becomes a target level, comprising: When the audio level is the first level, a control signal is sent to the earphone, and the earphone adjusts the cavity structure of the earphone in response to the control signal, so that the subsequently acquired audio level changes from the first level to second level. 6. The method according to claim 5, wherein adjusting the cavity structure of the earphone comprises: The movable device in the earphone is moved to a target position, and the space of the cavity is increased or decreased after the movable device reaches the target position. 7. The method according to claim 5, wherein adjusting the audio parameters of the headset based on the audio level, until the audio level acquired thereafter becomes a target level, comprising: When the audio level is the second level, the frequency response characteristics are adjusted to perform amplitude adjustment and frequency equalization on the sound waves emitted by the speaker, until the acquired audio level changes from the second level to the third level. The third level is the target level. 8. The method according to claim 1, wherein adjusting the audio parameters of the earphone based on the audio level until the audio level acquired thereafter becomes the target level, comprising: Obtain a list of historical users who use the headset; the historical user list includes the corresponding amplitude difference, phase difference, audio level and audio parameters corresponding to the target level of the ear; Obtain a target level and corresponding audio parameters according to the audio level, the amplitude difference and the phase difference; The audio parameters of the earphones are adjusted to the audio parameters corresponding to the target level, so that the audio level acquired later becomes the target level. 9. The method according to claim 1, wherein before acquiring the amplitude difference and the phase difference between the first audio signal and the second audio signal, the method further comprises: If the amplitude of the second audio signal is less than the preset amplitude threshold, it is determined that the audio parameters of the earphone do not need to be adjusted; if the amplitude of the second audio signal is greater than the preset amplitude threshold, continue to execute the acquisition of the The step of the amplitude difference and the phase difference between the first audio signal and the second audio signal. 10. A device for adjusting earphone audio parameters, characterized in that it is adapted to electronic equipment, comprising: an original signal acquisition module for acquiring an original audio signal; the original audio signal includes an ultrasonic signal and a sound signal; an audio signal acquisition module, configured to filter out the sound signal in the original audio signal to obtain the ultrasonic signal; the ultrasonic signal includes the unreflected first audio signal and the reflected second audio signal; an amplitude difference obtaining module, configured to obtain the amplitude difference and phase difference between the first audio signal and the second audio signal; an audio level acquisition module, configured to acquire the audio level corresponding to the ear where the earphone is located based on the amplitude difference and the phase difference; An audio parameter adjustment module, configured to adjust the audio parameters of the earphone based on the audio level when the audio level is a level other than the target level, until the audio level acquired thereafter becomes the target level. 11. The device according to claim 10, wherein the amplitude difference acquisition module comprises: an original waveform acquisition unit for acquiring the original waveform of the ultrasonic data played by the earphone; An audio signal acquiring unit, configured to extract the first audio signal from the ultrasonic signal based on the relationship between the original waveform and the first audio signal established in advance, and acquire the actual waveform and the original waveform of the audio signal The difference waveform of , using the difference waveform as the second audio signal; an amplitude difference acquiring unit, configured to acquire the amplitude difference and phase difference of the first audio signal and the second audio signal; the amplitude difference is used to represent the amplitude attenuation of the first audio signal by the ear canal degree, the phase difference is used to represent the degree of delay of the first audio signal by the depth of the eardrum in the ear. 12. The device according to claim 10, wherein the audio level acquisition module comprises: an amplitude-phase threshold acquisition unit, configured to acquire a preset amplitude difference threshold and a preset phase difference threshold; a comparison result obtaining unit, configured to compare the amplitude difference with the amplitude difference threshold and the phase difference with the phase difference threshold, to obtain a first comparison result and a second comparison result respectively; An audio level determination unit, configured to obtain the audio level of the ear wearing the earphone according to the first comparison result and the second comparison result. 13. The apparatus according to claim 12, wherein the audio level determination unit comprises: a first determining unit, configured to determine the The audio level is Level 1; or, a second determining unit, configured to: when the first comparison result indicates that the amplitude difference is greater than the amplitude difference threshold and the second comparison result indicates that the phase difference is smaller than the phase difference threshold, or, the When the first comparison result indicates that the amplitude difference is less than the amplitude difference threshold and the second comparison result indicates that the phase difference is greater than the phase difference threshold, the audio level is determined to be the second level; or, a third determining unit, configured to determine the The audio level is the third level. 14. The apparatus according to claim 10, wherein the audio parameter adjustment module comprises: a control signal sending unit, configured to send a control signal to the earphone when the audio level is the first level, and the earphone adjusts the cavity structure of the earphone in response to the control signal, so that the audio frequency acquired later The level changes from the first level to the second level. 15. The apparatus according to claim 14, wherein the audio parameter adjustment module comprises: The parameter adjustment unit is used to adjust the frequency response characteristics when the audio level is the second level, so as to perform amplitude adjustment and frequency equalization on the sound waves emitted by the speaker, until the audio level obtained after that changes from the second level to the second level. is the third level, and the third level is the target level. 16. The device according to claim 10, wherein adjusting the audio parameters of the earphone based on the audio level until the acquired audio level becomes the target level, comprising: A history list obtaining unit, used for obtaining the history user list using the headset; the history user list includes the corresponding amplitude difference, phase difference, audio level and audio parameters corresponding to the target level of the ear; an audio parameter acquiring unit, configured to acquire a target level and corresponding audio parameters according to the audio level, the amplitude difference and the phase difference; The audio parameter adjustment unit is configured to adjust the audio parameter of the earphone to the audio parameter corresponding to the target level, so that the audio level obtained later becomes the target level. 17. The device according to claim 10, characterized in that, the device further comprises an acquisition module, the acquisition module is configured to determine that it is not necessary to adjust the amplitude of the second audio signal when the amplitude of the second audio signal is less than a preset amplitude threshold. audio parameters of the earphone, and send a trigger signal to the audio signal acquisition module; and when the amplitude of the second audio signal is greater than the preset amplitude threshold, send a trigger signal to the amplitude difference acquisition module. 18. An electronic device, characterized in that it comprises a processor, an audio module, a superposition circuit and an ultrasonic transmitter; the processor is electrically connected to the superposition circuit, the ultrasonic transmitter and the audio module respectively ; The audio module and the superimposed circuit are electrically connected; The processor is configured to enable the ultrasonic transmitter after the earphone is paired with the electronic device, so that the ultrasonic driving signal sent by the ultrasonic transmitter is sent to the earphone through the superposition circuit; The audio module is configured to output audio data to the superimposing circuit in response to an enable signal of the processor; The superposition circuit is used for superimposing the ultrasonic driving signal and the audio data to output a mixed signal. 19. An earphone, characterized in that, comprising: a loudspeaker for emitting ultrasonic waves and sound waves; A movable device arranged in the cavity of the earphone; the movable device is used to adjust the size of the cavity; The ultrasonic receivers are respectively arranged in each channel; the ultrasonic receiver is used to obtain the original audio signal of the channel and output it to the electronic device, and the original audio signal includes the ultrasonic signal and the sound signal; A processor electrically connected to the movable device; the processor is used to adjust the cavity structure of the earphone in response to a control signal from the electronic device, so that the audio level acquired later changes from the first level to the second level grade. 20. A readable storage medium on which executable instructions are stored, wherein the executable instructions implement the steps of the method according to any one of claims 1 to 9 when the executable instructions are executed by a processor.

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