CN106792365B - Audio playing method and device - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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Abstract
The invention discloses an audio playing method and device. The method comprises the following steps: establishing communication connection with a set sound box, wherein at least one auxiliary loudspeaker is arranged on the set sound box; determining playing parameters of all the speakers according to the frequency response parameters of the at least one auxiliary speaker and the frequency response parameters of the main speaker set on the intelligent terminal, wherein the playing parameters comprise playing time and playing volume; and controlling all the loudspeakers to play the audio file according to the playing parameters. The technical scheme provided by the embodiment of the invention solves the problem that the intelligent terminal in the prior art cannot play the audio file to have the stereoscopic effect through the internal loudspeaker or the single external loudspeaker.
Description
Technical Field
The present invention relates to the field of audio processing technologies, and in particular, to an audio playing method and apparatus.
Background
Modern intelligent equipment is provided with audio recording and playing modules such as a microphone and a loudspeaker, so that convenience is brought to people to play audio files such as music and radio, and the entertainment life of people is enriched.
At present many smart machines such as cell-phone, wrist-watch etc. because the volume restriction, many only have a speaker, can't realize stereophonic effect when playing audio outward, only monophonic broadcast audio frequency, the audio effect is often not very good, and user experience is poor. Even if the smart device includes two speakers, the two speakers are not positioned differently, and thus the smart device cannot generate a significant stereo effect. When the intelligent device externally plays audio through the external loudspeaker, if the intelligent device is connected with only one loudspeaker, a three-dimensional shocking effect similar to a music scene cannot be formed.
Disclosure of Invention
In view of this, embodiments of the present invention provide an audio playing method and apparatus, so as to solve the problem that an intelligent terminal in the prior art cannot play an audio file with a stereoscopic effect through an internal speaker or a single external speaker.
In a first aspect, an embodiment of the present invention provides an audio playing method, including:
establishing communication connection with a set sound box, wherein at least one auxiliary loudspeaker is arranged on the set sound box;
determining playing parameters of all the speakers according to the frequency response parameters of the at least one auxiliary speaker and the frequency response parameters of the main speaker set on the intelligent terminal, wherein the playing parameters comprise playing time and playing volume;
and controlling all the loudspeakers to play the audio file according to the playing parameters.
In a second aspect, an embodiment of the present invention further provides an audio playing apparatus, including:
the loudspeaker box connecting module is used for establishing communication connection with a set loudspeaker box, and at least one auxiliary loudspeaker is arranged on the set loudspeaker box;
the parameter determining module is used for determining the playing parameters of all the loudspeakers according to the frequency response parameters of the at least one auxiliary loudspeaker and the frequency response parameters of the main loudspeaker arranged on the intelligent terminal, wherein the playing parameters comprise playing time and playing volume;
and the audio playing module is used for controlling all the loudspeakers to play the audio file according to the playing parameters.
According to the audio playing method and device provided by the embodiment of the invention, the intelligent terminal provided with the main loudspeaker is connected with the set sound box provided with at least one auxiliary loudspeaker, the playing parameters of the intelligent terminal are determined according to the frequency response parameters of all the loudspeakers, and all the loudspeakers are controlled to play the audio file according to the playing parameters. According to the scheme, the loudspeaker of the intelligent terminal and the loudspeaker of the sound box are controlled to be matched to play the audio file, the problem that the intelligent terminal cannot play the audio file into a three-dimensional effect through an internal loudspeaker or a single external loudspeaker is solved, and the three-dimensional playing effect of the audio file is achieved. And the playing parameters are determined according to the frequency response parameters of the loudspeaker, so that the stereo effect is better, and the user experience is greatly improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a flowchart of an audio playing method according to an embodiment of the present invention;
fig. 2 is a flowchart of an audio playing method according to a second embodiment of the present invention;
fig. 3 is a structural diagram of an audio playing apparatus according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.
It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 1 is a flowchart of an audio playing method according to an embodiment of the present invention. The method of the present embodiment may be performed by an audio playing device, which may be implemented by software and/or hardware, and may be generally integrated in an intelligent terminal. As shown in fig. 1, the audio playing method provided in this embodiment specifically includes:
and S110, establishing communication connection with a set sound box, wherein the set sound box is provided with at least one auxiliary loudspeaker.
Stereo sound is sound having a stereoscopic effect, and at least two speakers are required for generating stereo sound, where two speakers are speakers respectively present at different positions, and the distance between two positions is large enough for left and right ears to perceive. When different sounds are played from different spatial positions, people just like listening to sound of various sound sources in the real world, and the sound playing system plays back sounds with three-dimensional sense, namely stereo.
With the rapid development of modern science and technology, people are keen in creating a more perfect stereo effect and improving hearing experience, and many intelligent devices such as mobile phones and the like cannot realize the stereo effect even if a plurality of loudspeakers exist due to volume limitation. And when connecting outside audio amplifier through bluetooth or wired mode, if outside audio amplifier is portable audio amplifier, only has a speaker, can't realize stereo broadcast effect equally.
The embodiment of the invention creatively provides a method for controlling the intelligent terminal loudspeaker and the external sound box loudspeaker to play the audio file together, so that the stereo playing effect can be realized. The intelligent terminal needs to establish communication connection with a set sound box, at least one auxiliary loudspeaker is arranged on the set sound box, and the audio file is played with a main loudspeaker arranged on the intelligent terminal. For example, there are many audio files with dual channels in the current audio file, in this embodiment, a set speaker with a sub-speaker may be connected, and the main speaker on the smart terminal and the sub-speaker on the set speaker play audio files with left and right channels, respectively. In addition, the auxiliary speakers can be multiple or the intelligent terminal can be connected with multiple set sound boxes so as to play multi-channel audio files.
It is noted that the audio files of the respective channels are different. Illustratively, for a stereo audio file of a song, the audio file of one channel is an audio file of a singer singing a song, and the audio file of the other channel is an audio file of a band accompaniment, but the audio files of the respective channels need to be played simultaneously. The audio file may have an audio file of 5.1 channels or 7.1 channels in addition to a stereo audio file. For example, for an audio file of a 5.1 channel movie, two front main speakers are required for playing an audio file of background music; a center speaker for playing an audio file of a vocal dialog part of the movie; two surround sound boxes are arranged at the rear part and are used for playing audio files with special sound effects of the movie. When watching a movie, different sounds are transmitted from different directions, so that the scene feeling is very strong and the scene looks as if it were. For example, if an airplane flies from the rear right to the front left, which belongs to sound effects, then the sound can be heard from the rear right surround sound box, then the sound from the rear left surround sound box, then the sound from the front right sound box, and finally the sound from the front left sound box, the sound is stereo, and the part combining background music and human voice is the stereo perception of audio and video.
And S120, determining the playing parameters of all the loudspeakers according to the frequency response parameters of the at least one auxiliary loudspeaker and the frequency response parameters of the main loudspeaker arranged on the intelligent terminal.
Wherein, the playing parameters comprise playing time and playing volume. The frequency response parameters of the speaker may identify the ability of the speaker to playback audio within an allowable range of amplitudes. The frequency response parameters may include: high frequency effects, low frequency effects, accent effects, and volume magnitudes. The high frequency effect and the low frequency effect are the capability of the loudspeaker to play high frequency audio files and low frequency audio files, and exemplarily, the loudspeaker has good audio playback function at high frequency, and then the loudspeaker has good high frequency effect. Optionally, in the range of 2kHz to 20kHz audible to the human ear, the frequency band of 2kHz to 6kHz is defined as a low frequency band, and the frequency band of 6kHz to 20kHz is defined as a high frequency band in this embodiment. The accent effect identifies the ability of the speaker to playback accents in the audio file and the volume level identifies the ability of the speaker to playback the volume of the audio file. And determining the playing parameters of the corresponding loudspeaker according to the frequency response parameters of at least one auxiliary loudspeaker and the frequency response parameters of the main loudspeaker arranged on the intelligent terminal, namely the frequency response parameters of all the loudspeakers in the playing system, wherein the playing parameters comprise the playing time and the playing volume of the loudspeakers. For example, the playback volume of a speaker with a good high-frequency effect may be increased at the time when the audio file is played to a high frequency. For another example, if the speakers are not positioned well, such as being too close together, the time that the speakers are playing may be changed to create a spatial impression.
The user does not need to search the frequency response parameters of all the loudspeakers, and the intelligent terminal can intelligently obtain the frequency response parameters. The frequency response parameters of all loudspeakers are determined as follows: controlling all the loudspeakers to play a test audio file; recording the played test audio file to obtain a plurality of recording files; and comparing the plurality of recording files with the test audio file respectively to obtain the frequency response parameters of all the loudspeakers.
The test audio file is a mono audio file, preferably an audio file with a large frequency span (e.g., 4kHz to 20kHz), so that the intelligent terminal can conveniently acquire the frequency response parameters of each speaker. Controlling all loudspeakers to play the test audio file, recording sound played by each loudspeaker by the intelligent terminal to obtain a plurality of recording files, wherein each loudspeaker corresponds to the recording file, comparing each recording file with the test audio respectively by the intelligent terminal, comparing the recording waveform with the waveform of the test audio, obtaining the wave band of which the similarity between the recording waveform and the test audio waveform is greater than a preset threshold value, and taking the wave band as the wave band with good loudspeaker effect. For example, if the recording waveform is almost consistent with the waveform of the test audio in the frequency band of 13kHz to 18kHz, that is, the similarity is greater than the preset threshold, the high-frequency effect of the speaker corresponding to the recording waveform is good, and if the recording waveform is greatly different from the waveform of the test audio in the frequency band of 2kHz to 5kHz, that is, the similarity is lower than the preset threshold, the low-frequency effect of the speaker corresponding to the recording waveform is poor.
In addition, the recording file is compared with the test audio file, and the difference between the accent effect and the volume of the recording file and the test audio file can be obtained, so that the accent effect and the volume playback effect of the loudspeaker corresponding to the recording file are obtained.
And S130, controlling all the loudspeakers to play the audio file according to the playing parameters.
Obtaining the playing parameters of all the speakers according to the obtained frequency response parameters of all the speakers, for example, if the low-frequency effect of the speakers is poor, the playing volume of the speakers is reduced compared with other speakers at low frequency; if the accent effect of the loudspeaker is good, the volume of the loudspeaker is adjusted to be larger than the volume values of other loudspeakers. And according to the relative positions of all the loudspeakers, the playing time of the loudspeakers is adjusted, namely the playing time of the loudspeakers is earlier or later than the playing time of other loudspeakers, so that the playing time and the playing volume of each loudspeaker are determined. And playing the audio file according to the playing time and the playing volume, so that a better stereo effect can be obtained, and the user experience is improved.
According to the audio playing method provided by the embodiment of the invention, the intelligent terminal provided with the main loudspeaker is connected with the set sound box provided with at least one auxiliary loudspeaker, the playing parameters of the intelligent terminal are determined according to the frequency response parameters of all the loudspeakers, and all the loudspeakers are controlled to play the audio file according to the playing parameters. According to the scheme, the loudspeaker of the intelligent terminal and the loudspeaker of the sound box are controlled to be matched to play the audio file, the problem that the intelligent terminal cannot play the audio file into a three-dimensional effect through an internal loudspeaker or a single external loudspeaker is solved, and the three-dimensional playing effect of the audio file is achieved. And the playing parameters are determined according to the frequency response parameters of the loudspeaker, so that the stereo effect is better, and the user experience is greatly improved. In addition, the user does not need to search the frequency response parameters of each loudspeaker, and only needs to measure the frequency response parameters through recording, so that the obtained frequency response parameters of each loudspeaker are more accurate, more appropriate playing parameters are obtained, and a better three-dimensional effect is obtained.
Example two
Fig. 2 is a flowchart of an audio playing method according to a second embodiment of the present invention. In this embodiment, the first embodiment is optimized, and specifically, in this embodiment, the audio playing method includes:
s210, establishing communication connection with a set sound box, wherein at least one auxiliary loudspeaker is arranged on the set sound box.
And S220, determining the position information of all the loudspeakers according to the intelligent terminal microphone array.
The intelligent terminal is provided with a microphone array, the microphone array can be provided with at least three microphones, and the three microphones can acquire the accurate spatial position of the loudspeaker from a three-dimensional angle. The accurate positions of all the loudspeakers, namely the direction, the distance and the relative height of the loudspeakers relative to the intelligent terminal can be obtained through the microphone array.
For multi-channel audio files such as stereo, 5.1 channels and the like, the placement positions of the corresponding speakers of the playing system have certain standards, and in order to ensure that the sound in each speaker is transmitted to a specific place simultaneously while forming a stereoscopic impression, when the positions of the speakers are not accurate enough, the effect of stereo is affected, and the positions need to be corrected.
And S230, determining the playing parameters of all the loudspeakers according to the frequency response parameters of all the loudspeakers and the position information.
Specifically, the playing time of all the speakers is determined according to the position relationship and the standard position relationship between all the speakers; and determining the playing volume of all the loudspeakers according to the frequency response parameters of all the loudspeakers.
After the intelligent terminal acquires the position relations among all the loudspeakers, the position relations are compared with the standard position relations, if the position of the loudspeaker is different from the standard position, the intelligent terminal acquires the position difference, calculates the time difference of sound transmitted to a specific place according to the position difference and the sound transmission speed, and then performs addition and subtraction operation on the time of other loudspeakers playing the audio and the time difference to obtain the playing time of the loudspeaker.
The frequency response parameters of all the loudspeakers are different, and in order to obtain a better stereo effect, when the frequency response parameters of the loudspeakers have a good effect, the playing volume of the loudspeakers is increased, namely the volume of the loudspeakers is adjusted to be larger than the volumes of other loudspeakers; when the effect of the frequency response parameter of the loudspeaker is poor, the volume of the loudspeaker is adjusted to be smaller than that of other loudspeakers. Therefore, the playing time of the loudspeaker is obtained, and each loudspeaker plays a good role and avoids a short, so that a better stereo effect is obtained. For example, in a playback system, if the high frequency effect of speaker a is good, the low frequency effect is poor, and the high frequency effect of speaker B is poor, and the low frequency effect is good, then speaker a is controlled to increase the volume when playing the high frequency audio, decrease the volume when playing the low frequency audio, and speaker B is controlled to decrease the volume when playing the high frequency audio, and increase the volume when playing the low frequency audio. The volume adjusting method automatically adjusts according to the audio file, so that the user experience is enhanced, and a better playing effect is obtained.
And S240, controlling all the loudspeakers to play the audio file according to the playing parameters.
And controlling all the loudspeakers to play the audio file according to the playing time and the playing volume. It should be noted that when a speaker is required to play a multi-channel effect, the played audio file is also a multi-channel audio file, that is, when the audio file needs to be recorded in multiple tracks, each speaker corresponds to an audio file of one track of the audio file when the sub-audio file is played.
On the basis of the second embodiment, when determining the playing parameters of the speakers, the second embodiment determines the position information of all the speakers according to the microphone array of the intelligent terminal, and determines the playing time of all the speakers according to the position relationship and the standard position relationship of all the speakers; and determining the playing volume of all the loudspeakers according to the frequency response parameters of all the loudspeakers, wherein the playing volume can be automatically adjusted along with the change of the audio file to obtain the optimal three-dimensional playing effect. According to the audio playing method, the playing parameters are intelligently adjusted according to the positions of the loudspeakers and the frequency response parameters of the loudspeakers, the volume does not need to be manually adjusted by a user or the positions of the loudspeakers do not need to be placed, and the user experience is improved.
EXAMPLE III
Fig. 3 is a structural diagram of an audio playing apparatus according to a third embodiment of the present invention, where the apparatus may be configured in an intelligent terminal. As shown in fig. 3, the apparatus may include: a sound box connecting module 31, a parameter determining module 32 and an audio playing module 33.
The loudspeaker box connecting module 31 is used for establishing communication connection with a set loudspeaker box, and at least one auxiliary loudspeaker is arranged on the set loudspeaker box;
the parameter determining module 32 is configured to determine playing parameters of all speakers according to the frequency response parameter of the at least one auxiliary speaker and the frequency response parameter of the main speaker set on the intelligent terminal, where the playing parameters include playing time and playing volume;
and the audio playing module 33 is configured to control all the speakers to play the audio file according to the playing parameters.
In the audio playing device provided by the third embodiment of the present invention, the intelligent terminal provided with the main speaker is connected to the set sound box provided with at least one auxiliary speaker, and determines the playing parameters of the set sound box according to the frequency response parameters of all speakers, and controls all speakers to play the audio file according to the playing parameters. According to the scheme, the loudspeaker of the intelligent terminal and the loudspeaker of the sound box are controlled to be matched to play the audio file, the problem that the intelligent terminal cannot play the audio file into a three-dimensional effect through an internal loudspeaker or a single external loudspeaker is solved, and the three-dimensional playing effect of the audio file is achieved. And the playing parameters are determined according to the frequency response parameters of the loudspeaker, so that the stereo effect is better, and the user experience is greatly improved.
On the basis of the above embodiment, the apparatus includes a frequency response parameter determining module, where the frequency response parameter determining module is configured to:
controlling all the loudspeakers to play a test audio file;
recording the played test audio file to obtain a plurality of recording files;
and comparing the plurality of recording files with the test audio file respectively to obtain the frequency response parameters of all the loudspeakers.
Optionally, the parameter determining module 32 may include:
the position determining unit is used for determining the position information of all the loudspeakers according to the intelligent terminal microphone array;
and the parameter determining unit is used for determining the playing parameters of all the loudspeakers according to the frequency response parameters of all the loudspeakers and the position information.
Optionally, the parameter determining unit may include:
the time determining subunit is used for determining the playing time of all the loudspeakers according to the position relationship and the standard position relationship among all the loudspeakers;
and the volume determining subunit is used for determining the playing volumes of all the loudspeakers according to the frequency response parameters of all the loudspeakers.
Optionally, the frequency response parameter includes: high frequency effects, low frequency effects, accent effects, and volume magnitudes.
When the audio playing device determines the playing parameters of the loudspeakers, the audio playing device determines the position information of all the loudspeakers according to the microphone array of the intelligent terminal, and determines the playing time of all the loudspeakers according to the position relation and the standard position relation of all the loudspeakers; and determining the playing volume of all the loudspeakers according to the frequency response parameters of all the loudspeakers, wherein the playing volume can be automatically adjusted along with the change of the audio file to obtain the optimal three-dimensional playing effect. According to the audio playing method, the playing parameters are intelligently adjusted according to the positions of the loudspeakers and the frequency response parameters of the loudspeakers, the volume does not need to be manually adjusted by a user or the positions of the loudspeakers do not need to be placed, and the user experience is improved.
The device can execute the audio playing method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. An audio playing method, comprising:
establishing communication connection with a set sound box, wherein at least one auxiliary loudspeaker is arranged on the set sound box;
determining playing parameters of all the speakers according to the frequency response parameters of the at least one auxiliary speaker and the frequency response parameters of the main speaker set on the intelligent terminal, wherein the playing parameters comprise playing time and playing volume;
controlling all loudspeakers to play the audio files according to the playing parameters;
determining the playing parameters of all the loudspeakers according to the frequency response parameters of the at least one auxiliary loudspeaker and the frequency response parameters of the main loudspeaker arranged on the intelligent terminal, wherein the determining comprises the following steps:
determining the position information of all loudspeakers according to the intelligent terminal microphone array; the total number of the main loudspeakers and the auxiliary loudspeakers is at least three;
determining the playing parameters of all the loudspeakers according to the frequency response parameters of all the loudspeakers and the position information;
determining the playing parameters of all the loudspeakers according to the frequency response parameters of all the loudspeakers and the position information, wherein the determining comprises the following steps:
determining the playing time of all the loudspeakers according to the position relation and the standard position relation among all the loudspeakers; if the position difference exists between the position of the loudspeaker and the standard position, calculating the playing time of the loudspeaker according to the position difference;
determining the playing volume of all the loudspeakers according to the frequency response parameters of all the loudspeakers;
if there is a position difference between the position of the speaker and the standard position, calculating the playing time of the speaker according to the position difference, including:
and comparing the position relation among all the loudspeakers with a standard position relation, if the position of the loudspeaker is different from the standard position, acquiring the position difference by the intelligent terminal, calculating the time difference of the sound transmitted to a specific place according to the position difference and the sound transmission speed, and then performing addition and subtraction operation on the time of playing the audio by other loudspeakers and the time difference to obtain the playing time of the loudspeaker.
2. The method according to claim 1, wherein the frequency response parameter of the at least one auxiliary speaker and the frequency response parameter of the main speaker set on the intelligent terminal are determined by the following method:
controlling all the loudspeakers to play a test audio file;
recording the played test audio file to obtain a plurality of recording files;
and comparing the plurality of recording files with the test audio file respectively to obtain the frequency response parameters of all the loudspeakers.
3. The method of claim 1, wherein the frequency response parameters comprise:
high frequency effects, low frequency effects, accent effects, and volume magnitudes.
4. An audio playback apparatus, comprising:
the loudspeaker box connecting module is used for establishing communication connection with a set loudspeaker box, and at least one auxiliary loudspeaker is arranged on the set loudspeaker box;
the parameter determining module is used for determining the playing parameters of all the loudspeakers according to the frequency response parameters of the at least one auxiliary loudspeaker and the frequency response parameters of the main loudspeaker arranged on the intelligent terminal, wherein the playing parameters comprise playing time and playing volume;
the audio playing module is used for controlling all the loudspeakers to play audio files according to the playing parameters;
wherein the parameter determination module comprises:
the position determining unit is used for determining the position information of all the loudspeakers according to the intelligent terminal microphone array; the total number of the main loudspeakers and the auxiliary loudspeakers is at least three;
the parameter determining unit is used for determining the playing parameters of all the loudspeakers according to the frequency response parameters of all the loudspeakers and the position information;
the parameter determination unit includes:
the time determining subunit is used for determining the playing time of all the loudspeakers according to the position relationship and the standard position relationship among all the loudspeakers; if the position difference exists between the position of the loudspeaker and the standard position, calculating the playing time of the loudspeaker according to the position difference;
the volume determining subunit is used for determining the playing volumes of all the loudspeakers according to the frequency response parameters of all the loudspeakers;
the time determination subunit is specifically configured to compare the position relationships among all the speakers with a standard position relationship, if there is a difference between the positions of the speakers and the standard position, the intelligent terminal obtains the position difference, calculates a time difference when the sound is transmitted to a specific location according to the position difference and the sound propagation speed, and then performs addition and subtraction operation on the time when the other speakers play the audio and the time difference to obtain the playing time of the speaker.
5. The apparatus of claim 4, comprising a frequency response parameter determination module configured to:
controlling all the loudspeakers to play a test audio file;
recording the played test audio file to obtain a plurality of recording files;
and comparing the plurality of recording files with the test audio file respectively to obtain the frequency response parameters of all the loudspeakers.
6. The apparatus of claim 4, wherein the frequency response parameters comprise:
high frequency effects, low frequency effects, accent effects, and volume magnitudes.
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| CN109857360B (en) * | 2017-11-30 | 2022-06-17 | 长城汽车股份有限公司 | Volume control system and control method for audio equipment in vehicle |
| CN109803208B (en) * | 2019-01-31 | 2021-06-11 | 大陆汽车车身电子系统（芜湖）有限公司 | Audio file processing method and electronic device |
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