WO2021238458A1 - Method for optimizing sound quality of speaker device - Google Patents

Abstract

The present application relates to the technical field of speakers, and disclosed thereby is a method for optimizing the sound quality of a speaker device. The optimization method comprises: acquiring a target gain curve for describing a user's hearing level; generating a customized gain weighting curve on the basis of the target gain curve; superimposing the customized gain weighting curve and an initial equalization adjustment curve of a speaker device to obtain a customized equalization adjustment curve and transmitting same to the speaker device, so that the speaker device equalizes and adjusts, on the basis of the customized equalization adjustment curve, the audio outputted thereby; or transmitting the customized gain weighting curve to the speaker device, so that the speaker device superimposes the customized gain weighting curve and the initial equalization adjustment curve thereof to obtain the customized equalization adjustment curve, and on the basis of the customized equalization adjustment curve, equalizing and adjusting the audio outputted thereby. By means of the foregoing, in the present application, personalized sound quality optimization can be carried out for different users.

Description

The method of optimizing the sound quality of loudspeaker equipment 【Technical Field】

This application relates to the technical field of loudspeakers, and in particular to a method for optimizing the sound quality of a loudspeaker device.

【Background technique】

The sound quality of loudspeaker equipment is one of the factors that consumers consider most when buying. The industry has done a lot of research on the sound quality of the audio output from the speaker equipment, and put forward the ideal frequency response curve. For the user, the hearing sensitivity of each person to audio of the same frequency may be different, that is, the hearing sensitivity of each person or even each ear to audio of the same frequency may be different. However, the current speaker devices simply improve the sound quality without considering the impact of personal hearing differences on the user’s perception of the sound quality of the speaker device. That is, the same speaker device may have some users feel that the sound quality is good, and some users feel that the sound quality is better. Bad situation. Therefore, current speaker devices cannot optimize the sound quality for different users.

【Content of Application】

In view of this, the main technical problem to be solved by this application is to provide a method for optimizing the sound quality of a speaker device, which can perform personalized sound quality optimization for different users.

In order to solve the above technical problems, a technical solution adopted in this application is to provide a method for optimizing the sound quality of a speaker device. The optimization method includes: obtaining a target gain curve used to describe the user's hearing level; generating a customized gain weighting curve based on the target gain curve; superimposing the customized gain weighting curve and the initial equalization adjustment curve of the speaker device to obtain a customized equalization Adjust the curve and transmit it to the speaker device, so that the speaker device can adjust its output audio based on the customized equalization adjustment curve; or transmit the customized gain weighting curve to the speaker device, so that the speaker device will customize The optimized gain weighting curve is superimposed with the initial equalization adjustment curve to obtain a customized equalization adjustment curve, and the output audio is equalized and adjusted based on the customized equalization adjustment curve.

In an embodiment of the present application, the target gain curve is a set of several target frequency points and the target gain value corresponding to each target frequency point, wherein the target gain value is defined as the minimum volume corresponding to the audio of the target frequency point that the user can perceive The gain value.

In an embodiment of the present application, the step of generating a customized gain weighting curve based on the target gain curve includes: taking a frequency point in the first preset frequency band in the target gain curve as a reference frequency point; dividing the target gain curve The gain value of the frequency points other than the reference frequency point is subtracted from the gain value of the reference frequency point to obtain the first transition curve, and then the customized gain weighting curve is obtained.

In an embodiment of the present application, after the step of obtaining the first transition curve, the step of obtaining the first transition curve includes: adjusting the gain value of the frequency point of the first transition curve that is in the second preset frequency band and the gain value is negative to zero to obtain the first transition curve. The second transition curve is to obtain a customized gain weighting curve; wherein, the frequency of each frequency point in the second preset frequency band is less than the frequency of each frequency point in the first preset frequency band.

In an embodiment of the present application, after the step of obtaining the second transition curve includes: determining an over-amp gain value in the second transition curve that is greater than the first preset gain value; and limiting the over-amp gain value to not greater than the first preset gain value. Set the gain value to obtain a customized gain weighting curve, where the first preset gain value is the maximum gain value corresponding to avoiding clipping.

In an embodiment of the present application, the step of obtaining a target gain curve used to describe the user's hearing level includes: defining a number of target frequency points, or obtaining a number of predefined target frequency points; and outputting test audio of different target frequency points one by one; Obtain the target gain value of each target frequency point, and then obtain the target gain curve, where the target gain value is the gain value corresponding to the minimum volume of the test audio that the user can perceive.

In an embodiment of the present application, before the step of outputting test audio of different target frequency points one by one includes: optimizing the initial volume value of the test audio according to the average hearing curve of the group of people to which the user belongs.

In an embodiment of the present application, the speaker device is a headset; the target gain curve includes target gain curves corresponding to the left ear and right ear of the user to obtain a customized equalization adjustment curve corresponding to the left ear and right ear of the user, so that The speakers of the loudspeaker device corresponding to the left and right ears of the user respectively use the corresponding customized equalization adjustment curve to perform equalization adjustment on the respective output audio.

In an embodiment of the present application, after the step of generating a customized gain weighting curve based on the target gain curve, the step includes: transmitting the customized gain weighting curve to the speaker device and storing it by the speaker device.

In an embodiment of the present application, the step of obtaining a customized equalization adjustment curve and transmitting it to the speaker device includes: transmitting the customized equalization adjustment curve to the speaker device through wireless communication or wired communication; The step of transmitting the gain weighting curve to the speaker device includes: transmitting the customized gain weighting curve to the speaker device through a wireless communication method or a wired communication method.

In order to solve the above technical problem, another technical solution adopted in this application is to provide a method for optimizing the sound quality of a speaker device. The optimization method includes: loading a customized equalization adjustment curve, or loading a customized gain weighting curve, and superimposing the customized gain weighting curve with the initial equalization adjustment curve of the speaker device to obtain a customized equalization adjustment curve; wherein, the customized gain weighting The curve is derived from the target gain curve used to describe the user's hearing level; the output audio is balanced and adjusted based on the customized equalization adjustment curve.

In an embodiment of the present application, the optimization method further includes: in the process of outputting audio, performing dynamic range compression on a gain value greater than a second preset gain value.

The beneficial effect of this application is: different from the prior art, this application provides a method for optimizing the sound quality of a speaker device. In this optimization method, a customized gain weighting curve is generated based on the target gain curve used to describe the user's hearing level, and the customized gain weighting curve and the initial equalization adjustment curve of the speaker device are superimposed to obtain the customized equalization adjustment curve, and used Adjust the equalization of the audio output from the speaker device. It can be seen that the customized equalization adjustment curve based on the equalization adjustment of the speaker device of the present application is obtained through the target gain curve used to describe the user's hearing level, that is, the audio output of the speaker device according to the user's target gain curve Perform equalization adjustment to improve the sound quality of the output audio according to the user's target gain curve, and achieve personalized sound quality optimization for different users.

【Explanation of the drawings】

The drawings herein are incorporated into the specification and constitute a part of the specification, show embodiments that conform to the application, and are used together with the specification to explain the principle of the application. In addition, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to explain the concept of the present application to those skilled in the art by referring to specific embodiments.

FIG. 1 is a schematic flowchart of a first embodiment of a method for optimizing sound quality of a speaker device according to the present application;

2 is a schematic flowchart of a second embodiment of a method for optimizing the sound quality of a speaker device according to the present application;

FIG. 3 is a schematic flowchart of an embodiment of obtaining a target gain curve according to the present application;

FIG. 4 is a schematic flowchart of a third embodiment of a method for optimizing the sound quality of a speaker device according to the present application.

【Detailed ways】

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are part of the implementation of this application. Examples, not all examples. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a first embodiment of a method for optimizing the sound quality of a speaker device according to the present application. It should be noted that the method for optimizing the sound quality of the speaker device described in this embodiment is not limited to the following steps:

S101: Obtain a target gain curve used to describe the user's hearing level;

In this embodiment, in order to achieve the purpose of performing customized sound quality optimization for different users in this embodiment, it is necessary to obtain a target gain curve for describing the hearing level of the user. Among them, the target gain curve can be obtained in many ways, such as a hearing test technology commonly used in the hearing aid industry to test users.

S102: Generate a customized gain weighting curve based on the target gain curve;

In this embodiment, a customized gain weighting curve is generated based on the user's target gain curve, and the customized gain weighting curve is used to optimize the sound quality of the speaker device, so as to realize that the speaker device improves its output according to the user's target gain curve. The sound quality of audio realizes the optimization of personalized and customized sound quality for different users.

S103: Superimpose the customized gain weighting curve and the initial equalization adjustment curve of the speaker device to obtain the customized equalization adjustment curve and transmit it to the speaker device, or transmit the customized gain weighting curve to the speaker device to be The speaker device superimposes the customized gain weighting curve with its initial equalization adjustment curve to obtain a customized equalization adjustment curve;

In this embodiment, the customized gain weighting curve and the initial equalization adjustment curve are superimposed to obtain a customized equalization adjustment curve. The customized equalization adjustment curve is used when the speaker device outputs audio, the speaker device performs equalization adjustment of its output audio based on the customized equalization adjustment curve, and then improves the sound quality of the audio output by the speaker device according to the user's target gain curve.

It is understandable that the customized gain weighting curve and the initial equalization adjustment curve of the speaker device can be superimposed to obtain the customized equalization adjustment curve, and then the customized equalization adjustment curve can be transmitted to the speaker device, so that the speaker device can Directly use the customized equalization adjustment curve for equalization adjustment; or transmit the customized gain weighting curve to the speaker device, and the speaker device will superimpose the customized gain weighting curve with the initial equalization adjustment curve to obtain a customized equalization adjustment curve , And then used for balance adjustment.

Both the customized equalization adjustment curve and the initial equalization adjustment curve of the loudspeaker device include several frequency points and their corresponding gain value compensation (in other embodiments, it may also include the quality factor Q value corresponding to each frequency point), which is used for loudspeaker The audio output from the sound device is balanced. The initial balance adjustment curve of the speaker device is determined when the speaker device leaves the factory, and can be directly retrieved from the speaker device. It should be noted that the equalization adjustment of the loudspeaker equipment is based on the equalizer (Equalizer, EQ), which compensates for the defects of the loudspeaker equipment and the sound field, compensates and modifies various sound sources, and adjusts the gain of electrical signals of different frequencies. Other special effects.

It can be seen that the customized equalization adjustment curve based on the equalization adjustment of the speaker device of this embodiment is obtained through the target gain curve used to describe the user's hearing level, that is, the speaker device outputs the target gain curve for the user. The audio is balanced and adjusted to improve the sound quality of the output audio according to the user's target gain curve, which realizes the sound quality optimization for different users.

Please refer to FIG. 2, which is a schematic flowchart of a second embodiment of a method for optimizing the sound quality of a speaker device according to the present application. It should be noted that the method for optimizing the sound quality of the speaker device described in this embodiment is not limited to the following steps:

S201: Obtain a target gain curve G0 used to describe the user's hearing level;

In this embodiment, in order to achieve the purpose of optimizing sound quality for different users in this embodiment, it is necessary to obtain a target gain curve G0 for describing the hearing level of the user. Among them, the user's target gain curve G0 can be obtained in many ways such as testing the user through the hearing test function of the terminal.

Specifically, please refer to Figure 3. FIG. 3 shows a specific implementation manner of obtaining the user's target gain curve G0 in step S201 of this embodiment, which is not limited to the following steps:

It should be noted that the target gain curve G0 is a collection of several target frequency points and target gain values corresponding to each target frequency point. Among them, the target gain value is defined as the gain value corresponding to the minimum volume of the audio of the target frequency point that the user can perceive, that is, the target gain value corresponding to each target frequency point describes the user's sensitivity to the audio of the target frequency point.

S2011: Define several target frequency points, or obtain several pre-defined target frequency points;

In this embodiment, a number of target frequency points are defined for subsequent testing of the user to obtain the user's target gain curve G0. Of course, several target frequency points may have been pre-defined, and this test only needs to directly obtain the several pre-defined target frequency points without redefining the target frequency points, so as to speed up the test process and shorten the test time.

S2012: Output test audio of different target frequency points one by one;

In this embodiment, the test audio of different target frequency points are output one by one to measure the user's hearing threshold for the test audio of different target frequency points, which will be described in detail below to obtain the user's target gain curve G0. The output test audio is pure tone, and this embodiment needs to be applied in a quiet environment, that is, the ambient volume needs to be lower than the set value to allow the method of obtaining the user's target gain curve G0 described in this embodiment. Among them, the setting value is the maximum value of the ambient volume in a quiet environment.

Applying the method for obtaining the user's target gain curve G0 described in this embodiment may be software such as applications (APP) installed on smart mobile terminals such as smart phones and computers. For example, the smart mobile terminal collects the environmental volume through the microphone equipped with it, and determines whether the environmental volume is lower than the set value. In the same way, the method for optimizing the sound quality of the speaker device described in this embodiment can also be applied to software such as applications installed on smart mobile terminals such as smart phones and computers, and is not limited here.

S2013: Obtain the target gain value of each target frequency point, and then obtain the target gain curve G0;

In this embodiment, the target gain value is specifically the gain value corresponding to the minimum volume of the test audio that the user can perceive. Specifically, after outputting the test audio of the target frequency, when the user can hear the test audio, the user reduces the volume by reducing the gain value of the test audio, and when the user cannot hear the test audio, the user increases the test audio. The audio gain value increases the volume, and so on, until the user can just hear the test audio. At this time, the volume of the test audio reaches the auditory threshold, which means that the gain value corresponding to the volume of the test audio at this time is the target gain value of the target frequency point corresponding to the test audio. Repeat the above process to obtain the target gain value of each target frequency point, and the target gain value sequence of several target frequency points composed of each target frequency point and its target gain value is the user's target gain curve G0, which is used for Describe the user's hearing sensitivity to different frequencies of audio.

Further, a large number of data such as hearing curves of users of different groups of people may be stored in advance. Before starting the test process of the user target gain curve G0, the user’s age, gender, occupation and other information can be used to determine the user’s population category, and then the initial test audio can be optimized according to the average hearing curve of the user’s population category. Volume value to reduce test time and improve test efficiency. Specifically, when outputting the test audio of the target frequency point, the initial volume value of the test audio is preferably a volume value that can generally be heard by the group of people to which the user belongs.

Further, the speaker device may be an electronic device with an audio output function such as earphones and speakers. Especially when the speaker device is a headset, the speaker device is designed with corresponding speakers corresponding to the left and right ears of the user, so the sound quality of the speakers corresponding to the left and right ears of the user needs to be optimized. Specifically, the target gain curves G0 corresponding to the left ear and the right ear of the user are respectively obtained, and the subsequent method steps are performed with respect to the target gain curves G0 corresponding to the left ear and the right ear of the user.

The following roughly describes the situation of the target gain curve G0 corresponding to the left ear and the right ear of the user. Among them, only part of the target frequency points are selected exemplarily, and more or less target frequency points may actually be included, which is not limited here.

Frequency	100Hz	200Hz	400Hz	800Hz	1600Hz	3200Hz	6400Hz	12800Hz
Left ear	xxdB	xxdB	xxdB	xxdB	xxdB	xxdB	xxdB	xxdB
Right ear	xxdB	xxdB	xxdB	xxdB	xxdB	xxdB	xxdB	xxdB

Of course, in other embodiments of the present application, the user's hearing curve can be obtained, and the sound quality can be optimized based on the user's hearing curve. Wherein, the user's hearing curve can be obtained by inverting the target gain value of each target frequency point in the target gain curve G0 obtained above. Specifically, the target gain value of each target frequency point in the target gain curve G0 obtained above is converted into a corresponding inverse number. For example, the target gain value of the target frequency point A in the user's target gain curve G0 obtained above is B, and the gain value of the intermediate frequency point A of the obtained hearing curve is -B.

That is to say, the target gain curve G0 used to describe the user’s hearing level described in the embodiments of the present application may be a set of several target frequency points directly obtained by testing and the target gain value corresponding to each target frequency point, or the user’s Hearing curve, that is, a set of several target frequency points directly obtained by the test and the opposite number of the target gain value corresponding to each target frequency point, both of which can describe the user's hearing level.

It should be noted that if the sound quality is optimized based on the user’s hearing curve, before the subsequent optimization step, the gain value of each frequency point in the user’s hearing curve needs to be further inverted, that is, the value of each frequency point in the user’s hearing curve The gain value is converted to the corresponding inverse number, and then the subsequent optimization steps are carried out.

S202: Calibrate the target gain curve G0 based on the reference frequency point to obtain the first transition curve G1;

In this embodiment, in order to prevent the final customized gain weighting curve G3 of the user's left and right ears from being too different from each other and affecting the sound quality balance of the speakers of the speaker device corresponding to the user's left and right ears, this embodiment needs to adjust the target gain curve G0 of the passing user. The obtained target gain curve G0 is calibrated based on the reference frequency point, and the target gain curve G0 of the left and right ears of the user needs to be calibrated respectively. Since the optimization process of the target gain curve G0 of the left and right ears of the user is the same, the calibration process of the target gain curve G0 of one ear is taken as an example, and the following steps are the same.

Specifically, a frequency point in the first preset frequency band in the target gain curve G0 is taken as the reference frequency point, and the gain value of the frequency points other than the reference frequency point in the target gain curve G0 is subtracted from the gain value of the reference frequency point. Gain value to obtain the first transition curve G1, that is, the calibration process is completed.

In this embodiment, the first preset frequency band is preferably an intermediate frequency frequency band. In this embodiment, a frequency point in the intermediate frequency band is selected as the reference frequency point. The reason is that the human ear has the highest auditory sensitivity to intermediate frequency audio, and the human ear has less auditory sensitivity to intermediate frequency audio relative to high frequencies. However, compared with the low frequency, the intermediate frequency audio is not easily affected by the test environment.

Optionally, the first preset frequency band may preferably be 400 Hz-2000 Hz, and the reference frequency point may preferably be 1600 Hz or the like. Moreover, the corresponding high frequency frequency band is preferably a frequency band higher than 2000 Hz, and the corresponding low frequency frequency band is preferably a frequency band lower than 400 Hz.

S203: Adjust the gain value of the frequency point of the first transition curve G1 that is in the second preset frequency band and the gain value is negative to zero to obtain the second transition curve G2;

In this embodiment, it is necessary to adjust the gain value in the first transition curve G1 that may have a negative impact on the sound quality. Specifically, it is necessary to adjust the gain value of the frequency point of the first transition curve G1 that is in the second preset frequency band and whose gain value is a negative value to zero. Wherein, the frequency of each frequency point in the second preset frequency band is less than the frequency of each frequency point in the first preset frequency band, that is, the second preset frequency band is the low-frequency frequency band described above, that is, no negative gain is applied to low-frequency audio compensate.

S204: Determine an over-amp gain value in the second transition curve G2 that is greater than the first preset gain value, and limit the over-amp gain value to not greater than the first preset gain value to obtain a customized gain weighting curve G3;

In this embodiment, in order to avoid clipping and distortion of the audio digital signal caused by excessive gain, it is necessary to perform amplitude limiting processing on the gain value of the intermediate frequency point of the second transition curve G2. Specifically, the over-amp gain value in the second transition curve G2 that is greater than the first preset gain value is determined, and the over-amp gain value is limited to not greater than the first preset gain value to obtain a customized gain weighting curve G3. Wherein, the first preset gain value is the maximum gain value corresponding to avoiding the clipping phenomenon.

S205: Transmit the customized gain weighting curve G3 to the loudspeaker device, or superimpose the customized gain weighting curve G3 and the initial equalization adjustment curve E0 of the loudspeaker device to obtain the customized equalization adjustment curve E1 and transmit it to the loudspeaker Sound equipment

In this embodiment, the customized gain weighting curve G3 and the initial equalization adjustment curve E0 are superimposed to obtain a customized equalization adjustment curve E1. The customized equalization adjustment curve E1 is used when the speaker device outputs audio, the speaker device balances the output audio based on the customized equalization adjustment curve E1, and then improves the audio output of the speaker device according to the user's target gain curve G0 Sound quality. Moreover, through more detailed measurement, other acoustic parameters of the speaker device besides the frequency response curve can be optimized, including loudness, delay, phase, etc. In addition, based on the hearing data of a large number of users, the average hearing level that can represent the hearing sensitivity of the large number of users can be used to participate in the equalization adjustment of the speaker device, so that the default sound quality of the speaker device can meet the needs of the target user.

Specifically, the customized gain weighting curve G3 and the initial equalization adjustment curve E0 of the loudspeaker device can be superimposed to obtain the customized equalization adjustment curve E1, and then the customized equalization adjustment curve E1 can be transmitted to the loudspeaker device, so that the loudspeaker device You can directly use the customized equalization adjustment curve E1 for equalization adjustment; or transmit the customized gain weighting curve G3 to the speaker device, so that the speaker device can superimpose the customized gain weighting curve G3 with the initial equalization adjustment curve E0 to get Customized equalization adjustment curve E1, and then used for equalization adjustment.

Among them, the customized gain weighting curve G3 and the initial equalization adjustment curve E0 are superimposed to obtain the customized equalization adjustment curve E1, specifically, the customized gain weighting curve G3 and the initial equalization adjustment curve E0 are phased into the gain values of the same frequency point To obtain a customized equalization adjustment curve E1 (at this time, the quality factor Q value corresponding to the frequency point can be fixed; of course, in other embodiments, the customized gain weighting curve G3 and the initial equalization adjustment curve E0 are superimposed The adjustment of the quality factor Q value was also included before). Among them, the speakers of the speaker device corresponding to the left and right ears of the user respectively use the corresponding customized equalization adjustment curve E1 to perform equalization adjustment on the respective output audio.

In addition, the customized gain weighting curve G3 or customized equalization adjustment curve E1 can be transmitted to the speaker device through wireless communication or wired communication, and written into the firmware of the speaker device, and stored by the speaker device for use The speaker device is loaded and used to balance the audio output from the speaker device. The speaker device can directly use the customized gain weighting curve G3 or customized equalization adjustment curve E1 stored in it, instead of executing the above-mentioned user-based target gain curve G0 to generate the customized gain weighting curve G3 every time the equalization adjustment is performed. The process to improve the user experience.

Optionally, the method of transmitting the customized gain weighting curve G3 to the speaker device may include wireless communication methods such as BLE (Bluetooth Low Energy), 2.4G, or other wired communication methods, which are not limited here. .

Moreover, if in the actual process, the user is still not satisfied with the optimized sound quality of the speaker device, the user can manually adjust the gain value of the corresponding frequency point in the customized gain weighting curve G3, so that the sound quality of the speaker device can be improved. Meet the user's subjective preferences. The user can also turn on or turn off the customized sound quality optimization solution provided in this embodiment on software such as applications installed on smart mobile terminals such as smart phones and computers. In addition, the user can also share the customized gain weighting curve G3 obtained in the community of the application, so that other users using the application can use the customized gain weighting curve G3 obtained in this embodiment to experience the customized gain weighting curve G3. The sound quality of the output audio of the speaker device after the optimization of the gain weighting curve G3. It should be noted that the execution subject of the process of personalized and customized sound quality optimization described in this embodiment may be a terminal independent of the speaker device, such as a smart phone, a computer, etc., which may specifically be an application on the terminal ( APP, Application). Of course, the personalized and customized sound quality optimization functions described in this embodiment can also be integrated into a speaker device, such as earphones, etc., which is not limited here.

Please refer to FIG. 4, which is a schematic flowchart of a third embodiment of a method for optimizing the sound quality of a speaker device according to the present application. It should be noted that the method for optimizing the sound quality of the speaker device described in this embodiment is not limited to the following steps:

S301: Load a customized equalization adjustment curve E1, or load a customized gain weighting curve G3, and superimpose the customized gain weighting curve G3 with the initial equalization adjustment curve E0 of the speaker device to obtain a customized equalization adjustment curve E1;

In this embodiment, if the speaker device receives a customized equalization adjustment curve E1, when the speaker device outputs audio, it can directly load the customized equalization adjustment curve E1 for equalizing the audio output by the speaker device adjust. If the speaker device receives a customized gain weighting curve G3, when the speaker device outputs audio, it also needs to superimpose the customized gain weighting curve G3 and the speaker device's initial equalization adjustment curve E0 to obtain a customized equalization adjustment curve E1 , And then used to balance the audio output from the speaker device.

S302: Perform equalization adjustment on the output audio based on the customized equalization adjustment curve E1;

In this embodiment, the audio output from the speaker device is equalized and adjusted based on a customized equalization adjustment curve E1, where the customized equalization adjustment curve E1 is obtained by a target gain curve used to describe the user's hearing level (about getting customized The specific process of the equalization adjustment curve E1 has been described in detail in the above embodiments, and will not be repeated here), that is, the speaker device performs equalization adjustment on the output audio of the user's target gain curve to meet the user's target gain curve. Improve the sound quality of the audio output, and realize the sound quality optimization for different users.

Further, in the process of outputting audio from the speaker device, the speaker device also has a dynamic range compression (DRC, Dynamic Range Compression) function. Specifically, the dynamic range compression is performed on the gain value greater than the second preset gain value in the audio output by the speaker device. The second preset gain value is smaller than the first preset gain value mentioned above. When the amplitude of the audio output from the speaker device exceeds the second preset gain value, it is caused to avoid exceeding the first preset gain value. Clipping distortion occurs, and the dynamic range compression is performed on the gain value greater than the second preset gain value.

It should be noted that the speaker device of this embodiment can provide users with two types of equalization adjustment curves. One is the initial equalization adjustment curve E0 of the loudspeaker device to provide users with audio of the default sound quality of the loudspeaker device, and the other is the customization obtained by superimposing the customized gain weighting curve G3 with the initial equalization adjustment curve E0 of the loudspeaker device. Equalization adjustment curve E1 to provide users with customized sound quality audio. The user can also load a customized gain weighting curve G3 and an initial equalization adjustment curve E0 according to their own needs to superimpose to obtain a customized equalization adjustment curve E1, so that the speaker device can output audio with customized sound quality. Or load the initial equalization adjustment curve E0, and use the initial equalization adjustment curve E0 to perform equalization adjustment on the output audio, so that the speaker device outputs audio of the default sound quality.

In summary, the method for optimizing the sound quality of the speaker device provided in this application generates a customized gain weighting curve based on the target gain curve used to describe the user’s hearing level, and combines the customized gain weighting curve with the initial The equalization adjustment curve is superimposed to obtain a customized equalization adjustment curve, and is used for equalization adjustment of the audio output from the speaker device. It can be seen that the customized equalization adjustment curve based on the equalization adjustment of the speaker device of the present application is obtained through the target gain curve used to describe the user's hearing level, that is, the audio output of the speaker device according to the user's target gain curve Perform equalization adjustment to improve the sound quality of the output audio according to the user's target gain curve, and achieve personalized sound quality optimization for different users.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit it; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. Scope.

Claims (12)

1. A method for optimizing the sound quality of a speaker device, wherein the optimizing method includes:

   Obtain the target gain curve used to describe the user's hearing level;

   Generating a customized gain weighting curve based on the target gain curve;

   Superimpose the customized gain weighting curve and the initial equalization adjustment curve of the speaker device to obtain a customized equalization adjustment curve and transmit it to the speaker device, so that the speaker device is based on the customized equalization adjustment curve The curve performs equalization adjustment on its output audio; or

   The customized gain weighting curve is transmitted to the speaker device, and the customized gain weighting curve and its initial equalization adjustment curve are superimposed by the speaker device to obtain a customized equalization adjustment curve, which is based on the Customized equalization adjustment curve performs equalization adjustment on the output audio.
2. The optimization method according to claim 1, wherein the target gain curve is a set of a number of target frequency points and a target gain value corresponding to each of the target frequency points, wherein the target gain value is defined as the user being able to perceive the The gain value corresponding to the minimum volume of the audio at the target frequency point.
3. The optimization method according to claim 2, wherein the step of generating a customized gain weighting curve based on the target gain curve comprises:

   Taking a frequency point in the first preset frequency band in the target gain curve as a reference frequency point;

   The gain value of the reference frequency point is subtracted from the gain value of the frequency point other than the reference frequency point in the target gain curve to obtain a first transition curve, and then the customized gain weighting curve is obtained.
4. The optimization method according to claim 3, wherein after the step of obtaining the first transition curve comprises:

   Adjusting the gain value of the frequency point in the second preset frequency band with a negative gain value in the first transition curve to zero, to obtain a second transition curve, and then to obtain the customized gain weighting curve;

   Wherein, the frequency of each frequency point in the second preset frequency band is less than the frequency of each frequency point in the first preset frequency band.
5. The optimization method according to claim 4, wherein after the step of obtaining the second transition curve comprises:

   Determining an over-amp gain value in the second transition curve that is greater than a first preset gain value;

   The over-amp gain value is limited to not greater than the first preset gain value to obtain the customized gain weighting curve, wherein the first preset gain value is the maximum gain value corresponding to avoiding clipping .
6. The optimization method according to claim 2, wherein the step of obtaining a target gain curve for describing the hearing level of the user comprises:

   Define a number of the target frequency points, or obtain a number of the target frequency points defined in advance;

   Output test audio of different target frequency points one by one;

   The target gain value of each target frequency point is obtained, and then the target gain curve is obtained, wherein the target gain value is the gain value corresponding to the minimum volume of the test audio that the user can perceive.
7. 7. The optimization method according to claim 6, wherein the step of outputting test audio of different target frequency points one by one comprises:

   The initial volume value of the test audio is optimized according to the average hearing curve of the category of the user to which the user belongs.
8. The optimization method according to claim 1, wherein:

   The speaker device is a headset;

   The target gain curve includes target gain curves corresponding to the left and right ears of the user to obtain customized equalization adjustment curves corresponding to the left and right ears of the user, so that the loudspeaker device corresponds to the speakers of the left and right ears of the user Use the corresponding customized equalization adjustment curve to perform equalization adjustment on the audio output of each.
9. The optimization method according to claim 1, wherein the step of generating a customized gain weighting curve based on the target gain curve comprises:

   The customized gain weighting curve is transmitted to the speaker device and stored by the speaker device.
10. The optimization method according to claim 1, wherein:

    The step of obtaining a customized equalization adjustment curve and transmitting it to the speaker device includes:

    Transmitting the customized equalization adjustment curve to the speaker device through a wireless communication method or a wired communication method;

    The step of transmitting the customized gain weighting curve to the speaker device includes:

    The customized gain weighting curve is transmitted to the speaker device through a wireless communication method or a wired communication method.
11. A method for optimizing the sound quality of a speaker device, wherein the optimizing method includes:

    Load a customized equalization adjustment curve, or load a customized gain weighting curve, and superimpose the customized gain weighting curve and the initial equalization adjustment curve of the speaker device to obtain a customized equalization adjustment curve; wherein, the customized gain weighting curve Obtained from the target gain curve used to describe the user's hearing level;

    Perform equalization adjustment on the output audio based on the customized equalization adjustment curve.
12. The optimization method according to claim 11, wherein the optimization method further comprises:

    In the process of outputting audio, dynamic range compression is performed on the gain value greater than the second preset gain value.

Images