CN116709155A - Horn self-calibration method, system and storage medium - Google Patents

Abstract

The application relates to the technical field of acoustic horns, in particular to a loudspeaker self-calibration method, a system and a storage medium, which comprise the following steps: transmitting a calibration command to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration; acquiring an audio signal for calibration, and judging whether the audio signal for calibration meets preset hearing logic; if not, replacing the other loudspeaker in the same batch; if yes, the loudspeaker is used as a reference loudspeaker, and standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker; transmitting a calibration instruction to other speakers in the same batch, so that the other speakers play calibration audio and obtain parameters to be calibrated; comparing and calculating the parameter to be calibrated with the standard calibration parameter to obtain a calibration parameter difference; and calibrating and adjusting the parameters to be calibrated corresponding to other speakers in the same batch according to the calibration parameter difference. The application has the effect of reducing the calibration work difficulty and the work load of the staff.

Description

Horn self-calibration method, system and storage medium

Technical Field

The application relates to the technical field of acoustic horns, in particular to a loudspeaker self-calibration method, a loudspeaker self-calibration system and a storage medium.

Background

Sound is an electronic product commonly used in daily life, which refers to a device for converting audio signals and electronic signals from each other by using an electronic circuit design in a broad sense, but sound generally refers to a whole set of devices capable of reproducing and playing audio signals in a general spoken language. The acoustic devices generally include power amplifiers, peripheral devices (including pressure limiters, effectors, equalizers, VCDs, DVDs, etc.), speakers (boxes, speakers), tuning tables, etc.

Different numbers of loudspeakers are arranged in the sound equipment, and the loudspeakers are used for amplifying and playing sound frequency, but because different loudspeakers are different in factory batch, certain difference exists in sound production of the loudspeakers in each batch, and the difference is caused by the nuances of the different loudspeakers in the processes of rubber rings, sealing paint, vibration and the like and the difference of factory sound teaching. Different loudspeaker sounding differences can lead to inconsistent playing effects when acoustic products leave factories, and the situation that the visual listening logic of individual products in one batch of products is not uniform is likely to occur.

Therefore, in order to solve the problem, a further sound calibration operation is required before the loudspeaker leaves the factory, and the current common calibration method is to perform periodic calibration through an audio analyzer.

In the calibration process, the method needs to meet a plurality of specific requirements and set more calibration parameters, has strict actual use conditions, needs calibration personnel to master calibration preconditions and calibration parameters in a skilled manner, and has large workload.

Disclosure of Invention

In order to reduce the calibration work difficulty and workload of staff, the application provides a loudspeaker self-calibration method, a system and a storage medium.

In a first aspect, the present application provides a method for self-calibrating a loudspeaker, which adopts the following technical scheme:

a method of self-calibrating a loudspeaker, comprising the steps of:

transmitting a calibration command to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration;

acquiring a calibration audio signal obtained based on the calibration audio, and judging whether the calibration audio signal meets preset hearing logic or not, wherein the hearing logic is characterized by parameter information corresponding to the normal characteristic balance of the audio based on human hearing;

if not, replacing the other loudspeaker in the same batch to enable the loudspeaker to play the audio signal for calibration until the audio signal meets the preset hearing logic;

if yes, the loudspeaker is used as a reference loudspeaker, and corresponding standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker;

transmitting a calibration instruction to other speakers in the same batch, so that the other speakers in the same batch play the audio for calibration, and obtain corresponding parameters to be calibrated;

comparing and calculating the parameter to be calibrated with the standard calibration parameter to obtain a calibration parameter difference;

and generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme.

Preferably, the calibration audio is white noise.

Preferably, determining whether the audio signal for calibration satisfies a preset hearing logic specifically includes the following steps:

obtaining batch demand music types, wherein the batch demand music types are characterized as target music types which are required to be met by sound equipment correspondingly installed on speakers of different batches;

acquiring preset auditory logics of the same type according to the batch of required music types, wherein parameter information in auditory logics corresponding to different types of music is different;

judging whether sound parameters corresponding to the audio signals for calibration are all in the range of the same type of parameter information corresponding to the auditory logic;

if yes, the audio signal for calibration is characterized as meeting preset hearing logic;

if not, the audio signal for calibration does not meet the preset hearing logic.

Preferably, a corresponding calibration scheme is generated according to the calibration parameter difference, and calibration adjustment is performed on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme, including the following steps:

and sequentially increasing or decreasing the parameters to be calibrated of other horns in the same batch according to the difference of the calibration parameters in the calibration scheme until the parameters to be calibrated are the same as the standard calibration parameters.

Preferably, the calibrating and adjusting the parameter to be calibrated further includes the following steps:

obtaining batch applicable environment types, wherein the batch applicable environment types are characterized by corresponding use environments of speakers of different batches which are correspondingly installed, and the corresponding use environments at least comprise household use, commercial use and vehicle-mounted use;

acquiring a propagation distance loss value under the corresponding applicable environment according to the batch applicable environment type, wherein the propagation distance loss value is characterized by a predicted loss value of a distance from a sound to a listener when the sound plays the audio under different environments;

and performing distance compensation gain on the parameter to be calibrated which is subjected to calibration adjustment according to the propagation distance loss value.

Preferably, a calibration instruction is sent to other speakers in the same batch, so that the other speakers in the same batch play the calibration audio and obtain corresponding parameters to be calibrated, and the method specifically comprises the following steps:

judging the number of the target sound speakers, wherein the number of the target sound speakers is characterized by the number of speakers required on the sound correspondingly installed to the speakers in the batch;

if the number of the target sound speakers is 1, a calibration instruction is sent to any one of the other speakers in the same batch, so that the speakers play the audio for calibration and obtain corresponding parameters to be calibrated, wherein the parameters to be calibrated comprise parameters of one speaker;

if the number of the target sound speakers is not 1, sending the calibration instruction to a plurality of speakers with corresponding numbers in the same batch according to the number of the target sound speakers, so that the plurality of speakers play the audio for calibration, and obtain corresponding parameters to be calibrated, wherein the parameters with the calibration parameters comprise parameters of a plurality of speakers.

In a second aspect, the present application provides a loudspeaker self-calibration system, which adopts the following technical scheme:

a loudspeaker self-calibration system comprises a radio receiving module and a processing module, wherein,

the processing module is used for butting different loudspeakers to send a calibration instruction to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration;

the sound receiving module is used for receiving the calibration audio played by the loudspeaker, generating corresponding calibration audio signals based on the calibration audio and sending the corresponding calibration audio signals to the processing module;

the processing module acquires a calibration audio signal obtained by the calibration audio and judges whether the calibration audio signal meets preset hearing logic, wherein the hearing logic is characterized by parameter information corresponding to the normal characteristic balance of the audio based on human hearing; if not, replacing the other loudspeaker in the same batch to enable the loudspeaker to play the audio signal for calibration until the audio signal meets the preset hearing logic; if yes, the loudspeaker is used as a reference loudspeaker, and corresponding standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker;

the processing module is also used for sending a calibration instruction to other speakers in the same batch, so that the other speakers in the same batch play the calibration audio;

the radio module receives the audio for calibration and generates corresponding parameters to be calibrated based on the audio for calibration;

the processing module obtains corresponding parameters to be calibrated, and compares the parameters to be calibrated with the standard calibration parameters to obtain calibration parameter differences; and generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme.

In a third aspect, the present application provides a computer storage medium, which adopts the following technical scheme:

a computer storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the horn self-calibration method described above.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the method comprises the steps of selecting one loudspeaker which accords with normal hearing logic from the same batch of loudspeakers as a reference loudspeaker, obtaining audio for the loudspeaker to play and calibrate, monitoring the audio for the calibration by the microphone on sound or the loudspeaker, using the parameter of the audio for the calibration obtained by a processing module as a standard parameter, calibrating other loudspeakers in the same batch by the standard parameter, and enabling each parameter of the other loudspeakers to be consistent with the standard parameter, thereby completing the self calibration of the loudspeakers, avoiding the need to consider to carry out manual parameter setting, and realizing the calibration of all the loudspeakers in the same batch by only finding one reference sound.

Drawings

FIG. 1 is a schematic diagram of the overall steps of an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to fig. 1.

The embodiment of the application discloses a loudspeaker self-calibration method.

As shown in fig. 1, a method for self-calibrating a loudspeaker includes the following steps:

s100, sending a calibration instruction to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration.

The self-calibration logic of the embodiment of the application selects one loudspeaker from a plurality of loudspeakers in the same batch as a reference, takes the parameter corresponding to the sound emitted by the loudspeaker as a standard, and then calibrates all the loudspeakers in the same batch according to the standard, so that the sound parameters of all the loudspeakers in the same batch can be the same as those of the reference loudspeaker, thereby completing the calibration.

The loudspeaker used as the reference needs to be selected at first, so that the calibration instruction is sent to any loudspeaker in the same batch, so that the loudspeaker plays the preset calibration audio.

Further, the calibration audio is white noise. White noise is noise having equal power spectral densities of noise contained in frequency bands of equal bandwidths in a wide frequency range. The white noise is used for testing the output parameters of the loudspeaker, so that the parameters of the whole bandwidth can be better detected.

S200, acquiring a calibration audio signal obtained based on the calibration audio, and judging whether the calibration audio signal meets preset hearing logic.

The auditory logic is characterized by parameter information corresponding to the balance of the audio frequency based on the normal characteristics of human hearing.

First, whatever kind of sound, its final sound reproduction should be naturally balanced. The reproduced sound should be as close as possible to the original sound, and the heard sound should be smooth without staining, with no strongest and weakest sounds heard. The mid-band and treble should not be too high or too low.

According to the above-mentioned applicability of the hearing sense of sound by most people, a hearing sense logic suitable for most people can be obtained, and the hearing sense logic represents parameter information corresponding to the hearing sense which the listener can consider natural and balanced. The auditory logic can be known in advance through earlier testing, market evaluation and other works.

The standard audio information obtained based on the calibration audio is that the audio sent by the loudspeaker is obtained through the microphone and then sent to the processing module, and the processing module obtains parameters such as a frequency response range, a signal-to-noise ratio, distortion, a dynamic range and the like corresponding to the audio according to the audio.

The natural balanced hearing logic can also acquire corresponding parameter information, and the two groups of parameters are compared one by one, so that whether the audio signal for calibration meets the preset hearing logic can be known.

The method specifically comprises the following steps:

s210, obtaining the batch requirement music type.

The batch-required music type is characterized as a target music type which needs to be met by speakers of different batches and correspondingly installed sound equipment. If the sound to be installed of a batch of speakers is a rock music sound, the batch music type of the speakers is rock; if the sound to be installed by a batch of speakers is a classical music sound, the batch music type of the speakers is classical; if the sound to be installed by a batch of speakers is a full-scale sound, that is, not a sound suitable for a specific music type, the batch of music type is the public.

The sound equipment suitable for different music styles is different from the loudspeaker output parameter conditions, part of music types pay attention to bass enhancement, and part of music types pay attention to voices, and the sound equipment has different requirements on specific parameters of the loudspeaker.

S220, acquiring preset auditory logics of the same type according to the type of the batch of the required music, wherein parameter information in auditory logics corresponding to different types of music is different.

Auditory logic corresponding to different batch of required music types is different, and specific parameters corresponding to the different batch of required music types one by one are pre-tested by staff and prefabricated on the processing module.

Therefore, after knowing the music type corresponding to the batch of speakers, the subsequent comparison work can be directly performed.

S230, judging whether the sound parameters corresponding to the audio signal for calibration are all in the range of the same type of parameter information corresponding to the auditory logic.

And S240, if yes, characterizing that the audio signal for calibration meets preset auditory logic.

S250, if not, the audio signal for calibration does not meet preset auditory logic.

Judging whether the sound parameters corresponding to the audio signals for calibration are in the parameter range corresponding to the auditory logic, if so, indicating that the audio signals for calibration meet the auditory logic corresponding to the type of music, otherwise, not meeting the auditory logic corresponding to the type of music.

And S300, if the audio signal does not meet the preset hearing logic, replacing another loudspeaker in the same batch to enable the loudspeaker to play the audio signal for calibration until the audio signal meets the preset hearing logic.

If one loudspeaker in the same batch does not meet the auditory logic, it indicates that the loudspeaker has a certain flaw of sound parameters, which may cause discomfort or unnaturalness to a listener, and in this case, the other loudspeaker in the same batch is replaced for repeated verification until a loudspeaker meeting the preset auditory logic is found.

And S400, if the standard calibration parameters are met, the loudspeaker is used as a reference loudspeaker, and corresponding standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker.

If one loudspeaker meets the hearing logic, the loudspeaker is used as a reference loudspeaker, the audio signal for calibration played by the loudspeaker is used as a standard, standard calibration parameters are generated, and the parameters of other loudspeakers in the same batch are calibrated according to the standard calibration parameters.

S500, sending a calibration instruction to other speakers in the same batch, so that the other speakers in the same batch play calibration audio, and obtain corresponding parameters to be calibrated.

After the calibration standard parameters are selected, the calibration instructions are sent to other speakers in the same batch, so that the other speakers play the calibration audio as well, and the corresponding parameters to be calibrated are obtained.

The method specifically comprises the following steps:

s510, judging the number of the target sound speakers.

The target number of acoustic horns is characterized as the number of loudspeakers required on the sound to which the batch of horns corresponds.

S520, if the number of the target sound speakers is 1, a calibration instruction is sent to any one of the other speakers in the same batch, so that the speakers play calibration audio and obtain corresponding parameters to be calibrated, wherein the parameters to be calibrated comprise parameters of one speaker.

S530, if the number of the target sound speakers is not 1, transmitting a calibration instruction to a plurality of speakers with the same number in the same batch according to the number of the target sound speakers, so that the plurality of speakers play the audio for calibration, and obtain corresponding parameters to be calibrated, wherein the parameters to be calibrated comprise parameters of a plurality of speakers.

If only one loudspeaker is needed to be installed on sound equipment, and a plurality of loudspeakers are needed to be installed on sound equipment, in this case, one loudspeaker is needed to be checked and debugged on sound equipment, but if a plurality of loudspeakers are needed on sound equipment, a plurality of loudspeakers are played simultaneously when a listener uses sound equipment, and then the loudspeakers can play sounds as a whole, the overall sound of the loudspeakers is used as an audio for calibration, and a total parameter to be calibrated is obtained.

S600, comparing and calculating the parameter to be calibrated with the standard calibration parameter to obtain a calibration parameter difference.

Subtracting the parameter to be calibrated from the standard calibration parameter, a difference between the two different parameters can be obtained, wherein the difference is characterized by the value to be calibrated of the parameter to be calibrated.

S700, generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme.

The method specifically comprises the following steps:

and S710, sequentially increasing or decreasing the parameters to be calibrated in the same batch according to the differences of the calibration parameters in the calibration scheme until the parameters to be calibrated are the same as the standard calibration parameters.

After subtracting the parameter to be calibrated from the standard calibration parameter, if the difference value is a positive number, the parameter to be calibrated is lower than the standard calibration parameter, and if the difference value is added on the basis of the parameter to be calibrated, the parameter value which is the same as the standard calibration parameter can be obtained, so that the calibration is completed; otherwise, if the difference is negative, it means that the parameter to be calibrated is higher than the standard calibration parameter, and subtracting the difference from the parameter to be calibrated can obtain the same parameter value as the standard calibration parameter.

In other embodiments, the method specifically further comprises the following steps:

s720, obtaining the applicable environment type of the batch.

The batch applicable environment types are characterized as corresponding use environments of sound equipment correspondingly installed on speakers in different batches, and the corresponding use environments at least comprise household use, commercial use, vehicle-mounted use and the like.

The batch applicable environment refers to sound equipment installed by the batch of speakers, and the specific use of scene information is household sound equipment, commercial sound equipment or vehicle-mounted sound equipment, because the sound equipment used in different environments has different environmental space sizes, and the distance that sound passes from the speakers of the sound equipment to a listener is different.

And S730, acquiring a propagation distance loss value under the corresponding applicable environment according to the type of the batch applicable environment.

The propagation distance loss value is characterized by the predicted loss of sound from the sound to the listener over the distance that the sound propagates when playing audio in different environments, where the predicted loss is different. If the environment in which the car audio is used is in a car, the space in the car is small, and the distance between the loudspeaker and the listener is short, the loss value of the sound from the sound to the sound reaching the listener is smaller than that in a commercial environment with a large space.

And S740, performing distance compensation gain on the parameter to be calibrated which is subjected to calibration adjustment according to the propagation distance loss value.

The farther the sound propagates, the more the sound is lost, and the larger the value of the compensation gain that is required for the parameter. The closer the sound propagates, the less the loss it takes place in the sound, and the smaller the value of the compensation gain that is required for the parameter.

The compensation gain is to compensate the parameters which are possibly lost due to the distance on the parameters to be calibrated after the calibration adjustment, so that the audio heard by the human ear is normal when the compensated audio is lost during transmission and reaches the human ear, and the problems of distortion, abnormal frequency response and the like are avoided, thereby improving the fidelity of the sound, and a user can feel the audio which has almost no difference with the original sound in the environment of the user.

The embodiment of the application also discloses a loudspeaker self-calibration system, which comprises a sound receiving module and a processing module, wherein,

the processing module is used for butting different loudspeakers to send a calibration instruction to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration;

the radio module is used for receiving the audio frequency for calibration played by the loudspeaker, generating corresponding audio frequency signals for calibration based on the audio frequency for calibration and sending the audio signals to the processing module;

the processing module acquires a calibration audio signal obtained by the calibration audio and judges whether the calibration audio signal meets preset hearing logic, wherein the hearing logic is characterized by parameter information corresponding to the normal characteristic balance of the audio based on human hearing; if not, replacing the other loudspeaker in the same batch to enable the loudspeaker to play the audio signal for calibration until the audio signal meets the preset hearing logic; if yes, the loudspeaker is used as a reference loudspeaker, and corresponding standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker;

the processing module is also used for sending a calibration instruction to other speakers in the same batch, so that the other speakers in the same batch play the audio for calibration;

the radio module receives the audio for calibration and generates corresponding parameters to be calibrated based on the audio for calibration;

the processing module obtains corresponding parameters to be calibrated, and compares the parameters to be calibrated with standard calibration parameters to obtain calibration parameter differences; and generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme.

Wherein, the radio module is a microphone.

The embodiment of the application also discloses a computer storage medium, on which a computer program is stored, and the computer program realizes the loudspeaker self-calibration method when being executed by a processor.

The implementation principle is as follows:

the method comprises the steps of selecting one loudspeaker which accords with normal hearing logic from the same batch of loudspeakers as a reference loudspeaker, obtaining audio for the loudspeaker to play and calibrate, monitoring the audio for the calibration by the microphone on sound or the loudspeaker, using the parameter of the audio for the calibration obtained by a processing module as a standard parameter, calibrating other loudspeakers in the same batch by the standard parameter, and enabling each parameter of the other loudspeakers to be consistent with the standard parameter, thereby completing the self calibration of the loudspeakers, avoiding the need to consider to carry out manual parameter setting, and realizing the calibration of all the loudspeakers in the same batch by only finding one reference sound.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (8)

1. A method for self-calibrating a loudspeaker, comprising the steps of:

transmitting a calibration command to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration;

acquiring a calibration audio signal obtained based on the calibration audio, and judging whether the calibration audio signal meets preset hearing logic or not, wherein the hearing logic is characterized by parameter information corresponding to the normal characteristic balance of the audio based on human hearing;

if not, replacing the other loudspeaker in the same batch to enable the loudspeaker to play the audio signal for calibration until the audio signal meets the preset hearing logic;

if yes, the loudspeaker is used as a reference loudspeaker, and corresponding standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker;

transmitting a calibration instruction to other speakers in the same batch, so that the other speakers in the same batch play the audio for calibration, and obtain corresponding parameters to be calibrated;

comparing and calculating the parameter to be calibrated with the standard calibration parameter to obtain a calibration parameter difference;

and generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme.

2. The method of self-calibration of a loudspeaker according to claim 1, wherein: the calibration audio is white noise.

3. The method of self-calibration of a loudspeaker according to claim 1, wherein: judging whether the audio signal for calibration meets preset hearing logic or not, specifically comprising the following steps:

obtaining batch demand music types, wherein the batch demand music types are characterized as target music types which are required to be met by sound equipment correspondingly installed on speakers of different batches;

acquiring preset auditory logics of the same type according to the batch of required music types, wherein parameter information in auditory logics corresponding to different types of music is different;

judging whether sound parameters corresponding to the audio signals for calibration are all in the range of the same type of parameter information corresponding to the auditory logic;

if yes, the audio signal for calibration is characterized as meeting preset hearing logic;

if not, the audio signal for calibration does not meet the preset hearing logic.

4. A method of self-calibrating a loudspeaker according to claim 3, wherein: generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme, wherein the method comprises the following steps:

and sequentially increasing or decreasing the parameters to be calibrated of other horns in the same batch according to the difference of the calibration parameters in the calibration scheme until the parameters to be calibrated are the same as the standard calibration parameters.

5. The method of speaker self-calibration according to claim 4, wherein: and performing calibration adjustment on the parameter to be calibrated, and further comprising the following steps:

obtaining batch applicable environment types, wherein the batch applicable environment types are characterized by corresponding use environments of speakers of different batches which are correspondingly installed, and the corresponding use environments at least comprise household use, commercial use and vehicle-mounted use;

acquiring a propagation distance loss value under the corresponding applicable environment according to the batch applicable environment type, wherein the propagation distance loss value is characterized by a predicted loss value of a distance from a sound to a listener when the sound plays the audio under different environments;

and performing distance compensation gain on the parameter to be calibrated which is subjected to calibration adjustment according to the propagation distance loss value.

6. A method of self-calibrating a loudspeaker according to claim 3, wherein: sending a calibration instruction to other speakers in the same batch to enable the other speakers in the same batch to play the calibration audio and obtain corresponding parameters to be calibrated, wherein the method specifically comprises the following steps:

judging the number of the target sound speakers, wherein the number of the target sound speakers is characterized by the number of speakers required on the sound correspondingly installed to the speakers in the batch;

if the number of the target sound speakers is 1, a calibration instruction is sent to any one of the other speakers in the same batch, so that the speakers play the audio for calibration and obtain corresponding parameters to be calibrated, wherein the parameters to be calibrated comprise parameters of one speaker;

if the number of the target sound speakers is not 1, sending the calibration instruction to a plurality of speakers with corresponding numbers in the same batch according to the number of the target sound speakers, so that the plurality of speakers play the calibration audio and obtain corresponding parameters to be calibrated, wherein the parameters to be calibrated comprise parameters of a plurality of speakers.

7. A loudspeaker self-calibration system, characterized by: comprises a radio receiving module and a processing module, wherein,

the processing module is used for butting different loudspeakers to send a calibration instruction to any loudspeaker in the same batch so that the loudspeaker plays the audio for calibration;

the sound receiving module is used for receiving the calibration audio played by the loudspeaker, generating corresponding calibration audio signals based on the calibration audio and sending the corresponding calibration audio signals to the processing module;

the processing module acquires a calibration audio signal obtained by the calibration audio and judges whether the calibration audio signal meets preset hearing logic, wherein the hearing logic is characterized by parameter information corresponding to the normal characteristic balance of the audio based on human hearing; if not, replacing the other loudspeaker in the same batch to enable the loudspeaker to play the audio signal for calibration until the audio signal meets the preset hearing logic; if yes, the loudspeaker is used as a reference loudspeaker, and corresponding standard calibration parameters are generated according to the calibration audio signals played by the loudspeaker;

the processing module is also used for sending a calibration instruction to other speakers in the same batch, so that the other speakers in the same batch play the calibration audio;

the radio module receives the audio for calibration and generates corresponding parameters to be calibrated based on the audio for calibration;

the processing module obtains corresponding parameters to be calibrated, and compares the parameters to be calibrated with the standard calibration parameters to obtain calibration parameter differences; and generating a corresponding calibration scheme according to the calibration parameter difference, and performing calibration adjustment on parameters to be calibrated corresponding to other speakers in the same batch based on the calibration scheme.

8. A computer storage medium having stored thereon a computer program, which when executed by a processor implements the method of loudspeaker self-calibration of any of claims 1 to 6.