CN107404625A - The sound effect treatment method and device of terminal - Google Patents
The sound effect treatment method and device of terminal Download PDFInfo
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- CN107404625A CN107404625A CN201710584042.8A CN201710584042A CN107404625A CN 107404625 A CN107404625 A CN 107404625A CN 201710584042 A CN201710584042 A CN 201710584042A CN 107404625 A CN107404625 A CN 107404625A
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- 230000005236 sound signal Effects 0.000 claims 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
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Abstract
The embodiment of the present invention provides a kind of sound effect treatment method and device of terminal.This method includes：Obtain the voice signal in terminal plays source, and the noise sound of ambient noise signal；According to the noise sound and the corresponding relation of sound carrier power surplus and noise sound, sound carrier power surplus corresponding with the noise sound is obtained；Gain compensation is carried out to electric frequency response curve corresponding to the noise sound according to the sound carrier power surplus, so that the frequency range increase of the electric frequency response curve after compensation；The voice signal is played according to the electric frequency response curve after the compensation.The embodiment of the present invention has expanded sound frequency range, enhance audio, and because different noise sounds corresponds to different electric frequency response curves, i.e. different frequency ranges, hence in so that under different sound carrier powers, tv speaker can export optimal frequency range, therefore export audio and be greatly improved, better user experience.
Description
Technical field
The present embodiments relate to the sound effect treatment method and device in sound technique field, more particularly to a kind of terminal.
Background technology
Now with the development of TV tech, increasing TV is designed using ultra-thin fuselage.
Fig. 1 is the sound frequency response curve of existing 55 cun of TVs.The ultra-thin fuselage design of existing TV so that the case of TV
Body space is limited, and the sound chamber of TV built-in speaker is less and less, and large scale loudspeaker can not be installed in sound chamber, and therefore, audio frequency rings
The frequency range of the low frequency part of curve is narrower, as shown in figure 1, the frequency range of below 100Hz low frequency part is narrower.And sound chamber is in thickness
The displacement of loudspeaker is limited on degree direction so that loudspeaker can not bear too big power, it is impossible to export sufficiently large acoustic pressure
Level.Because power is bigger, the displacement of loudspeaker is bigger, the voice coil loudspeaker voice coil bottoming of loudspeaker or vibrating diaphragm is touched casing and is caused
Abnormal sound, there is the problems such as television set machine shakes certainly.In order to avoid the excessive caused above mentioned problem of displacement, electricity is removed in the prior art
Depending on playing the low frequency part of sound to avoid damaging loudspeaker, and low frequency part is the important behaviour part of sound.
Therefore the low frequency part in the sound due to televising lacks or frequency range is narrower so that the audio of TV compares
Difference so that Consumer's Experience is poor.
The content of the invention
The embodiment of the present invention provides a kind of sound effect treatment method and device of terminal, for solving the sound of prior art TV
Imitate poor so that the poor technical problem of Consumer's Experience.
In a first aspect, the embodiment of the present invention provides a kind of sound effect treatment method of terminal, including：
Obtain the voice signal in terminal plays source, and the noise sound of ambient noise signal；
According to the noise sound and the corresponding relation of sound carrier power surplus and noise sound, acquisition is made an uproar with described
Several corresponding sound carrier power surpluses of arbitrarily downgrading；
Gain compensation is carried out to electric frequency response curve corresponding to the noise sound according to the sound carrier power surplus, so that
Sound frequency range corresponding to electric frequency response curve after compensation increases；
The voice signal is played according to the electric frequency response curve after the compensation.
Second aspect, the embodiment of the present invention provide a kind of sound-effect processing equipment of terminal, including：
Acquisition module, for obtaining the voice signal in terminal plays source, and the noise sound of ambient noise signal；
The acquisition module, it is additionally operable to according to the noise sound and pair of sound carrier power surplus and noise sound
It should be related to, obtain sound carrier power surplus corresponding with the noise sound；
Processing module, for being carried out according to the sound carrier power surplus to electric frequency response curve corresponding to the noise sound
Gain compensation so that compensation after electric frequency response curve corresponding to sound frequency range increase；
Playing module, for playing the voice signal according to the electric frequency response curve after the compensation.
The sound effect treatment method and device of terminal provided in an embodiment of the present invention, the voice signal in terminal plays source is obtained,
And the noise sound of ambient noise signal；According to the noise sound and sound carrier power surplus and noise sound
Corresponding relation, obtain sound carrier power surplus corresponding with the noise sound；Further, according to the sound carrier power surplus
Gain compensation is carried out to electric frequency response curve corresponding to the noise sound, so that sound corresponding to the electric frequency response curve after compensation
Frequency range increases；The voice signal is played according to the electric frequency response curve after the compensation, due to according to sound carrier power surplus pair with
The corresponding electric frequency response curve of noise sound carries out gain compensation, therefore, is not increasing the specified sound carrier power of television acoustics
On the basis of, sound frequency range has been expanded, has enhanced audio, because different noise sounds corresponds to different electric frequency response curves, i.e.,
Different frequency ranges, hence in so that under different sound carrier powers, tv speaker can export optimal frequency range, therefore export audio
It is greatly improved, better user experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sound frequency response curve of existing 55 cun of TVs；
Fig. 2 is the schematic flow sheet of the sound effect treatment method embodiment one of terminal provided by the invention；
Fig. 3 is that the sound accompaniment voltage of the embodiment of sound effect treatment method one of terminal provided by the invention and frequency range output principle show
It is intended to；
Fig. 4 is that the frequency range of the embodiment of sound effect treatment method one of terminal provided by the invention expands schematic diagram one；
Fig. 5 is that the frequency range of the embodiment of sound effect treatment method one of terminal provided by the invention expands schematic diagram two；
Fig. 6 is the human ear contour of equal loudness of the embodiment of sound effect treatment method one of terminal provided by the invention；
Fig. 7 is the structure chart of the sound-effect processing equipment embodiment of terminal provided by the invention；
Fig. 8 is the structure chart of terminal embodiment provided by the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present embodiments relate to terminal can include the playing audio/video such as TV, computer.In following examples
Only illustrated by taking TV as an example.
Technical scheme is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and may be repeated no more for same or analogous concept or process in some embodiments.
Fig. 2 is the schematic flow sheet of the sound effect treatment method embodiment one of terminal provided by the invention.The execution of this method
Main body is the sound-effect processing equipment of terminal, and the device can be set in the terminal.As shown in Fig. 2 the method for the present embodiment can be with
Including：
Step 201, the voice signal for obtaining terminal plays source, and the noise sound of ambient noise signal.
Optionally, in this step, noise sound can be obtained in the following way：
Pass through sound transducer acquisition noise signal；The noise signal includes：Ambient noise signal and terminal plays source
Voice signal；
According to the noise signal and the voice signal in the terminal plays source, the noise of the ambient noise signal is obtained
Sound pressure level.
Specifically, sound transducer (one or a series of sensor arrays) can be arranged on television set corresponding positions
Put, the sound around television set is then gathered by sound transducer, be i.e. acquisition noise signal, noise signal is made an uproar including environment
Acoustical signal and the voice signal in source of televising.
The noise signal that sound transducer gathers is conveyed to signal processor, signal processor is by comparing making an uproar for collection
The voice signal of acoustical signal and television set itself broadcast source (voice signal in the terminal plays source obtained in advance), by computing
Processing obtains noise sound size, and this noise sound is the foundation of follow-up television set adjustment output sound effect.
By noise sound size, user's usage scenario can be judged.
General concern below 1KHz ambient noise, filtering process can be done by signal processor, is typically filtered out
The ambient noise of 1.5KHz frequencies above.
Signal processor such as Yamaha noise processed chip.
Step 202, according to noise sound and the corresponding relation of sound carrier power surplus and noise sound, obtain and make an uproar
Several corresponding sound carrier power surpluses of arbitrarily downgrading.
In this step, the corresponding relation of sound carrier power surplus and noise sound can be prestored.
Specifically, it is in advance that the corresponding relation of sound carrier power surplus and noise sound is preset in memory, each
Noise sound corresponds to respective sound carrier power surplus.
When to audio effect processing, according to noise sound and the corresponding relation of sound carrier power surplus and noise sound, obtain
Take sound carrier power surplus corresponding with noise sound.
Fig. 3 is that the sound accompaniment voltage of the embodiment of sound effect treatment method one of terminal provided by the invention and frequency range output principle show
It is intended to.As shown in figure 3, sound carrier power increases as noise sound raises, frequency range broadens as noise sound reduces,
And typically have larger sound carrier power surplus in actual applications, between rated power and sound carrier power, therefore can basis
Sound carrier power surplus carries out gain compensation to low frequency and/or HFS, to expand frequency range, lifts audio.
Alternatively, before step 203, can also proceed as follows：
According to noise sound, it is determined that output volume corresponding with noise sound.
Specifically, the sound accompaniment voltage of output volume, i.e. TV output can be determined according to noise sound.Different noises
Sound pressure level corresponds to different output volumes.
Step 203, gain compensation carried out to electric frequency response curve corresponding to noise sound according to sound carrier power surplus, so that
Sound frequency range corresponding to electric frequency response curve after compensation increases.
Alternatively, this step can specifically be realized in the following way：
By Digital Signal Processing DSP power amplifiers according to sound carrier power surplus to the low of electric frequency response curve corresponding to output volume
Frequency part and/or HFS carry out gain compensation, so that sound frequency range increase corresponding to the electric frequency response curve after compensation.
Specifically, after obtaining noise sound, output volume is determined according to noise sound, that is, determines TV output
Sound accompaniment voltage and corresponding sound carrier power, while electric frequency response curve corresponding to output.By DSP power amplifiers to electric frequency response curve
Low frequency part and/or the sound pressure level of HFS compensate lifting, and frequency range is expanded.
Electric frequency response curve is adjusted by DSP power amplifiers, utilizes output corresponding to rated power and current noise sound
Sound carrier power surplus between sound carrier power corresponding to volume, low frequency and/or HFS to electric frequency response curve carry out gain
Compensation so that sound frequency range increases, and audio improves.
As shown in figure 3, sound carrier power increases as noise sound raises, frequency range becomes as noise sound reduces
Width, the method in the present embodiment, i.e., below rated power, utilize output corresponding to rated power and current noise sound
Sound carrier power surplus between sound carrier power corresponding to volume, low frequency and/or HFS to electric frequency response curve carry out gain
Compensation, is expanded to sound frequency range.
Above-mentioned different noise sound corresponds to different frequency ranges, therefore frequency range is dynamic change, and with output
The reduction frequency range of volume is increase, and the smaller frequency range of output volume is relatively wide.
Fig. 4 is that the frequency range of the embodiment of sound effect treatment method one of terminal provided by the invention expands schematic diagram one.This implementation
The method of example, increase the sound carrier power of low frequency part and/or HFS using DSP power amplifiers, so as to extend frequency range, such as Fig. 4 institutes
Show, the signified part of arrow in figure, that is, need to carry out the part of gain compensation.
Fig. 5 is that the frequency range of the embodiment of sound effect treatment method one of terminal provided by the invention expands schematic diagram two.Such as Fig. 5 institutes
Show, the certain point on electric frequency response curve needs to compensate 12dB sound carrier power, to expand frequency range.
To sum up, different noise sounds correspond to different output volumes, and frequency range corresponding to different output volumes is different
's.Output volume is relatively small when quiet, increases the low frequency part and/or HFS of electric frequency response curve, extends frequency range.
Because quiet environment need not be too big sound pressure level with regard to that can catch, television power output also has more than very big sound carrier power
Amount, we can do bigger lifting and compensation to low frequency and/or high frequency；And human ear play sound it is small in the case of, together
The signal of sample sound pressure level, human ear sense of hearing is not so good as intermediate frequency to the susceptibility of low frequency and high frequency, due to low frequency part and/or radio-frequency head
Divide and expanded, therefore sense of hearing experience is preferable.
When needing to export big sound pressure level, that is, in the environment of noisy point, the sound carrier power of television power output
Surplus is smaller, therefore frequency range lifting is smaller.
Fig. 6 is the human ear contour of equal loudness of the embodiment of sound effect treatment method one of terminal provided by the invention.Further,
When being compensated to electric frequency response curve, it can also compensate and correct using human ear contour of equal loudness, output is more met
Human auditory system.Human ear contour of equal loudness is as shown in Figure 6.We remain to obtain the sense of hearing effect of three frequency balances when so quiet, together
When low frequency and high frequency have a more preferable output effect, user obtains more preferable sound grand banquet.When noisy, there is bigger sound pressure level defeated
Go out, remain to obtain relatively good sound result of broadcast.
Step 204, according to after compensation electric frequency response curve play voice signal.
Specifically, the above-mentioned electric frequency response curve determined according to noise sound size after output volume and compensation.Will
Electric frequency response curve after output volume, frequency range and compensation that power amplifier is handled well is sent to TV set built-in sound box.Built-in speaker root
Voice signal is played according to the electric frequency response curve after compensation.
Because output volume corresponding to different noise sounds is of different sizes, electric frequency response curve is different.Therefore, the present invention is real
Apply the method for example and can also realize and automatically adjust output volume.
In summary, during television for play, under quiet environment, strengthen low frequency and high frequency output, expand frequency range, sound is clear
Clear, three frequencies balance, and because sound pressure level increase can also catch broadcast sounds during noisy environment.And believed according to ambient noise
Number the real-time automatic regulating volume of noise sound and audio so that TV is more intelligent so that user has more preferable experience.
The method that the present embodiment provides, obtain the voice signal in terminal plays source, and the sound of ambient noise signal
Arbitrarily downgrade；According to the noise sound and the corresponding relation of sound carrier power surplus and noise sound, obtain and the noise
Sound carrier power surplus corresponding to sound pressure level；Further, according to the sound carrier power surplus to corresponding to the noise sound
Electric frequency response curve carries out gain compensation, so that sound frequency range increase corresponding to the electric frequency response curve after compensation；According to the compensation
Electric frequency response curve afterwards plays the voice signal, due to according to the sound carrier power surplus pair electricity frequency corresponding with noise sound
Ring curve and carry out gain compensation, therefore, on the basis of the specified sound carrier power of television acoustics is not increased, expand sound frequency range,
Audio is enhanced, because different noise sounds corresponds to different electric frequency response curves, i.e., different frequency range, hence in so that not
With sound carrier power under, tv speaker can export optimal frequency range, therefore export audio and be greatly improved, Consumer's Experience compared with
It is good.
Fig. 7 is the structure chart of the sound-effect processing equipment embodiment of terminal provided by the invention, as shown in fig. 7, the present embodiment
The sound-effect processing equipment of terminal can include：
Acquisition module 701, for obtaining the voice signal in terminal plays source, and the noise acoustic pressure of ambient noise signal
Level；
The acquisition module 701, it is additionally operable to according to the noise sound and sound carrier power surplus and noise sound
Corresponding relation, obtain corresponding with noise sound sound carrier power surplus；
Processing module 702, for according to the sound carrier power surplus to electric frequency response curve corresponding to the noise sound
Gain compensation is carried out, so that the frequency range increase of the electric frequency response curve after compensation；
Playing module 703, for playing the voice signal according to the electric frequency response curve after the compensation.
Alternatively, the acquisition module 701, is specifically used for：
Pass through sound transducer acquisition noise signal；The noise signal includes：Ambient noise signal and terminal plays source
Voice signal；
According to the noise signal and the voice signal in the terminal plays source, the noise of the ambient noise signal is obtained
Sound pressure level.
Alternatively, in addition to：
Memory module, for prestoring the corresponding relation of the sound carrier power surplus and noise sound；
Alternatively, in addition to：
Determining module, for according to the noise sound, it is determined that output volume corresponding with the noise sound.
Alternatively, the processing module 702, is specifically used for：
By Digital Signal Processing DSP power amplifiers according to the sound carrier power surplus to electric frequency response corresponding to the output volume
The low frequency part and/or HFS of curve carry out gain compensation, so that sound frequency range corresponding to the electric frequency response curve after compensation
Increase
The device that the present embodiment provides, acquisition module obtain the voice signal in terminal plays source, and ambient noise signal
Noise sound；Acquisition module closes according to the noise sound and sound carrier power surplus are corresponding with noise sound
System, obtain sound carrier power surplus corresponding with the noise sound；Further, processing module is according to more than the sound carrier power
Amount carries out gain compensation to electric frequency response curve corresponding to the noise sound, so that sound corresponding to the electric frequency response curve after compensation
The wide increase of audio；Playing module plays the voice signal according to the electric frequency response curve after the compensation, due to according to sound accompaniment work(
The rate surplus pair electric frequency response curve corresponding with noise sound carries out gain compensation, and therefore, not increasing, television acoustics are specified
On the basis of sound carrier power, sound frequency range is expanded, has enhanced audio, because different noise sounds corresponds to different electricity frequencies
Ringing curve, i.e., different frequency ranges, hence in so that under different sound carrier powers, tv speaker can export optimal frequency range, because
This output audio is greatly improved, better user experience.
The device of the present embodiment, it can be used for the technical scheme for performing above method embodiment, its realization principle and technology
Effect is similar, and here is omitted.
Fig. 8 is the structure chart of terminal embodiment provided by the invention, as shown in figure 8, the terminal includes：
Processor 801, the memory 802 of the executable instruction for storing processor 801, and for playing sound letter
Number audio amplifier 803.
Alternatively, in addition to：Sensor, power amplifier.
Wherein, processor 801 is used to call executable instruction, performs corresponding method in preceding method embodiment, and it has
Body implementation process may refer to preceding method embodiment, and here is omitted.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
- A kind of 1. sound effect treatment method of terminal, it is characterised in that including：Obtain the voice signal in terminal plays source, and the noise sound of ambient noise signal；According to the noise sound and the corresponding relation of sound carrier power surplus and noise sound, obtain and the sound Sound carrier power surplus corresponding to arbitrarily downgrading；Gain compensation is carried out to electric frequency response curve corresponding to the noise sound according to the sound carrier power surplus, so that compensation Sound frequency range corresponding to electric frequency response curve afterwards increases；The voice signal is played according to the electric frequency response curve after the compensation.
- 2. according to the method for claim 1, it is characterised in that obtain the noise sound of ambient noise signal, specific bag Include：Pass through sound transducer acquisition noise signal；The noise signal includes：Ambient noise signal and the sound in terminal plays source Sound signal；According to the noise signal and the voice signal in the terminal plays source, the noise acoustic pressure of the ambient noise signal is obtained Level.
- 3. method according to claim 1 or 2, it is characterised in that more than the noise sound and sound carrier power The corresponding relation of amount and noise sound, before obtaining sound carrier power surplus corresponding with the noise sound, in addition to：Prestore the corresponding relation of the sound carrier power surplus and noise sound.
- 4. method according to claim 1 or 2, it is characterised in that according to the sound carrier power surplus to the sound Electric frequency response curve carries out gain compensation corresponding to arbitrarily downgrading, so that before the frequency range increase of the electric frequency response curve after compensation, in addition to：According to the noise sound, it is determined that output volume corresponding with the noise sound.
- 5. according to the method for claim 4, it is characterised in that according to the sound carrier power surplus to the noise sound Corresponding electric frequency response curve carries out gain compensation, so that sound frequency range increase corresponding to the electric frequency response curve after compensation, specific bag Include：By Digital Signal Processing DSP power amplifiers according to the sound carrier power surplus to electric frequency response curve corresponding to the output volume Low frequency part and/or HFS carry out gain compensation so that compensation after electric frequency response curve corresponding to sound frequency range increase.
- A kind of 6. sound-effect processing equipment of terminal, it is characterised in that including：Acquisition module, for obtaining the voice signal in terminal plays source, and the noise sound of ambient noise signal；The acquisition module, it is additionally operable to close according to the noise sound and sound carrier power surplus are corresponding with noise sound System, obtain sound carrier power surplus corresponding with the noise sound；Processing module, for carrying out gain to electric frequency response curve corresponding to the noise sound according to the sound carrier power surplus Compensate, so that sound frequency range increase corresponding to the electric frequency response curve after compensation；Playing module, for playing the voice signal according to the electric frequency response curve after the compensation.
- 7. device according to claim 6, it is characterised in that the acquisition module, be specifically used for：Pass through sound transducer acquisition noise signal；The noise signal includes：Ambient noise signal and the sound in terminal plays source Sound signal；According to the noise signal and the voice signal in the terminal plays source, the noise acoustic pressure of the ambient noise signal is obtained Level.
- 8. the device according to claim 6 or 7, it is characterised in that also include：Memory module, for prestoring the corresponding relation of the sound carrier power surplus and noise sound.
- 9. the device according to claim 6 or 7, it is characterised in that also include：Determining module, for according to the noise sound, it is determined that output volume corresponding with the noise sound.
- 10. the device according to claim 6 or 7, it is characterised in that the processing module, be specifically used for：By Digital Signal Processing DSP power amplifiers according to the sound carrier power surplus to electric frequency response curve corresponding to the output volume Low frequency part and/or HFS carry out gain compensation so that compensation after electric frequency response curve corresponding to sound frequency range increase.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111935429A (en) * | 2020-07-06 | 2020-11-13 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound quality self-adaptive adjusting method, related system and equipment and storage medium |
| CN112151050A (en) * | 2020-08-26 | 2020-12-29 | 宁波方太厨具有限公司 | Sound quality adjusting method for electric appliance noise and range hood |
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| CN106911981A (en) * | 2017-03-10 | 2017-06-30 | 四川长虹电器股份有限公司 | The system and method for small sound chamber audio effect processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111935429A (en) * | 2020-07-06 | 2020-11-13 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound quality self-adaptive adjusting method, related system and equipment and storage medium |
| CN111935429B (en) * | 2020-07-06 | 2021-10-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound quality self-adaptive adjusting method, related system and equipment and storage medium |
| CN112151050A (en) * | 2020-08-26 | 2020-12-29 | 宁波方太厨具有限公司 | Sound quality adjusting method for electric appliance noise and range hood |
| CN112151050B (en) * | 2020-08-26 | 2022-11-11 | 宁波方太厨具有限公司 | Sound quality adjusting method for electric appliance noise and range hood |
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