CN108111950A - A kind of volume adjusting method and speaker based on ambient noise - Google Patents
A kind of volume adjusting method and speaker based on ambient noise Download PDFInfo
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- CN108111950A CN108111950A CN201711418054.XA CN201711418054A CN108111950A CN 108111950 A CN108111950 A CN 108111950A CN 201711418054 A CN201711418054 A CN 201711418054A CN 108111950 A CN108111950 A CN 108111950A
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Classifications
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
Abstract
The invention discloses a kind of volume adjusting method based on ambient noise, including：Background noise is gathered, the first sound pressure level is calculated according to the background noise；Receive voice data to be played；Decode the voice data received；The broadcast sound volume of speaker is obtained, the second sound pressure level is calculated according to the broadcast sound volume；Compare first sound pressure level and second sound pressure level, decoded voice data is amplified according to comparative result；Play amplified voice data.The invention also discloses a kind of speaker, including background noise acquisition module, receiving module, audio decoder module, broadcast sound volume acquisition module, amplification module and loud speaker.Present invention speaker when ambient noise changes can be manually operated, the actual sound size experienced of user does not generate larger fluctuation due to the variation of ambient noise, significantly improves user experience according to preset condition adjust automatically output volume without user.
Description
Technical field
The present invention relates to field of intelligent control technology, and in particular to a kind of volume adjusting method and sound based on ambient noise
Case.
Background technology
With the rapid development of science and technology, people’s lives level is higher and higher.The thing followed also has the fast pace lived
Change, place specialization and noise pollution etc..Commonly the noise sound difference of indoor and outdoor is larger, different places (example
Such as library and market) noise sound difference it is larger；At the same time, same place is poor in the noise sound of different time
It is also not larger.To obtain preferable user experience, when ambient noise size changes, it is necessary to adjust sound manually regularly
Ring the output volume of equipment.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of volume adjusting method based on ambient noise, specifically
Technical solution is as described below：
A kind of volume adjusting method based on ambient noise, comprises the following steps：
Background noise is gathered, the first sound pressure level is calculated according to the background noise；
Receive voice data to be played；
Decode the voice data received；
The broadcast sound volume of speaker is obtained, the second sound pressure level is calculated according to the broadcast sound volume；
Compare first sound pressure level and second sound pressure level, decoded voice data is amplified according to comparative result；
Play amplified voice data.
Further, first sound pressure level and second sound pressure level are amplified decoded according to comparative result
Voice data, including：
If first sound pressure level is lower than second sound pressure level, first sound pressure level and second acoustic pressure are judged
Whether the difference of grade exceeds first threshold；
If the difference of first sound pressure level and second sound pressure level increases mould without departing from first threshold according to volume
Formula amplifies decoded voice data, makes the difference of first sound pressure level and second sound pressure level between the first threshold
Between second threshold.
Further, judge first sound pressure level and second sound pressure level difference whether beyond first threshold it
Afterwards, further include：
If the difference of first sound pressure level and second sound pressure level exceeds the first threshold, described first is judged
Whether the difference of sound pressure level and second sound pressure level exceeds the second threshold；
If the difference of first sound pressure level and second sound pressure level exceeds the second threshold, reduce according to volume
Pattern amplifies decoded voice data, makes the difference of first sound pressure level and second sound pressure level between first threshold
Between value and the second threshold.
Further, judge first sound pressure level with the difference of second sound pressure level whether beyond the second threshold
Afterwards, further include：
If the difference of first sound pressure level and second sound pressure level without departing from second threshold, is put according to mode standard
Big decoded voice data.
Further, first sound pressure level and second sound pressure level are amplified decoded according to comparative result
Voice data, including：
If first sound pressure level is higher than second sound pressure level, amplify decoded audio according to volume increase pattern
Data, make the difference of first sound pressure level after adjusting and second sound pressure level between first threshold and second threshold it
Between.
Further, further include and first threshold and the size of second threshold are pre-set according to user demand.
The present invention also provides a kind of speaker, specific technical solution is as described below：
A kind of speaker, including with lower module：
For gathering background noise, the first sound pressure level is calculated according to the background noise for background noise acquisition module；
Receiving module, for receiving voice data to be played；
Audio decoder module, for decoding the voice data received；
For obtaining the broadcast sound volume of speaker, the second acoustic pressure is calculated according to the broadcast sound volume for broadcast sound volume acquisition module
Grade；
Amplification module for first sound pressure level and second sound pressure level, amplifies according to comparative result and decodes
Voice data afterwards；
Loud speaker, for playing amplified voice data.
Further, the amplification module includes：
First judgment module if lower than second sound pressure level for first sound pressure level, judges first sound
It whether arbitrarily downgrades with the difference of second sound pressure level beyond first threshold；
First volume increases module, for lower than second sound pressure level in first sound pressure level, and first sound
When arbitrarily downgrading with the difference of second sound pressure level without departing from first threshold, amplify decoded audio number according to volume increase pattern
According to making the difference of first sound pressure level and second sound pressure level between the first threshold and second threshold.
Further, the amplification module includes：
Second judgment module, if exceeding first threshold for the difference of first sound pressure level and second sound pressure level
Whether value then judges first sound pressure level with the difference of second sound pressure level beyond the second threshold；
Volume down little module, if exceeding second threshold for the difference of first sound pressure level and second sound pressure level
Value then according to the decoded voice data of pattern amplification is reduced, makes the difference of first sound pressure level and second sound pressure level
Between the first threshold and the second threshold.
Further, the amplification module includes：
Keep module, if for first sound pressure level and second sound pressure level difference without departing from second threshold,
Amplify decoded voice data according to mode standard.
Further, the amplification module includes：
Second volume increases module, for when first sound pressure level is than second sound pressure level, according to increase pattern
Amplify decoded voice data, make the difference of first sound pressure level after adjusting and second sound pressure level between the first threshold
Between value and second threshold.
Further, setup module is further included, for pre-setting first threshold and second threshold according to user demand
Size.
Implement the invention has the advantages that：
1st, the present invention can pre-set first threshold and second threshold according to user demand, and first threshold is that user can connect
The minimal difference of the sound pressure level (the second sound pressure level) for the output volume received and the sound pressure level (the first sound pressure level) of ambient noise, second
Threshold value is the maximum difference of acceptable second sound pressure level of user and the first sound pressure level, after being provided with, is occurred in ambient noise
Speaker can be manually operated according to preset condition adjust automatically output volume without user during change.
2nd, the present invention can according to ambient noise automatically adjust output volume, the actual sound size experienced of user not because
The variation of ambient noise and generate larger fluctuation, significantly improve user experience.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains substantially or is recognized by the practice of the present invention.
Description of the drawings
It 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 attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart for the volume adjusting method based on ambient noise that the embodiment of the present invention 1 provides；
Fig. 2 is the structure diagram for the speaker that the embodiment of the present invention 2 provides.
Specific 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 attached drawing, the technical solution 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, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work belong to the scope of protection of the invention.It is described
The example of embodiment is shown in the drawings, wherein same or similar label represents same or similar element or tool from beginning to end
There is the element of same or like function.
Embodiment 1
The present invention provides a kind of volume adjusting method based on ambient noise, below in conjunction with attached drawing to the present embodiment into
Row is described in detail.For simplicity, illustrate only and those relevant steps of theme described herein.Overall is made an uproar based on background
The volume adjusting method of sound can have many other steps.Fig. 1 is the volume based on ambient noise that the embodiment of the present invention 1 provides
The flow chart of adjusting method, as shown in Figure 1, the volume adjusting method provided in this embodiment based on ambient noise includes following step
Suddenly：
S1：Background noise is gathered, the first sound pressure level is calculated according to the background noise；
S2：Receive voice data to be played；
S3：Decode the voice data received；
S4：The broadcast sound volume of speaker is obtained, the second sound pressure level is calculated according to the broadcast sound volume；
S5：Compare first sound pressure level and second sound pressure level, decoded audio number is amplified according to comparative result
According to；
S6：Play amplified voice data.
Further, first sound pressure level and second sound pressure level are amplified decoded according to comparative result
Voice data, including：
If first sound pressure level is lower than second sound pressure level, first sound pressure level and second acoustic pressure are judged
Whether the difference of grade exceeds first threshold；
If the difference of first sound pressure level and second sound pressure level increases mould without departing from first threshold according to volume
Formula amplifies decoded voice data, makes the difference of first sound pressure level and second sound pressure level between the first threshold
Between second threshold.
Further, judge first sound pressure level and second sound pressure level difference whether beyond first threshold it
Afterwards, further include：
If the difference of first sound pressure level and second sound pressure level exceeds the first threshold, described first is judged
Whether the difference of sound pressure level and second sound pressure level exceeds the second threshold；
If the difference of first sound pressure level and second sound pressure level exceeds the second threshold, reduce according to volume
Pattern amplifies decoded voice data, makes the difference of first sound pressure level and second sound pressure level between first threshold
Between value and the second threshold.
Further, judge first sound pressure level with the difference of second sound pressure level whether beyond the second threshold
Afterwards, further include：
If the difference of first sound pressure level and second sound pressure level without departing from second threshold, is put according to mode standard
Big decoded voice data.
Further, first sound pressure level and second sound pressure level are amplified decoded according to comparative result
Voice data, including：
If first sound pressure level is higher than second sound pressure level, amplify decoded audio according to volume increase pattern
Data, make the difference of first sound pressure level after adjusting and second sound pressure level between first threshold and second threshold it
Between.
The present invention also provides a kind of speaker, specific technical solution is as described below：
A kind of speaker, including with lower module：
For gathering background noise, the first sound pressure level is calculated according to the background noise for background noise acquisition module；
Receiving module, for receiving voice data to be played；
Audio decoder module, for decoding the voice data received；
For obtaining the broadcast sound volume of speaker, the second acoustic pressure is calculated according to the broadcast sound volume for broadcast sound volume acquisition module
Grade；
Amplification module for first sound pressure level and second sound pressure level, amplifies according to comparative result and decodes
Voice data afterwards；
Loud speaker, for playing amplified voice data.
Further, the amplification module includes：
First judgment module if lower than second sound pressure level for first sound pressure level, judges first sound
It whether arbitrarily downgrades with the difference of second sound pressure level beyond first threshold；
First volume increases module, for lower than second sound pressure level in first sound pressure level, and first sound
When arbitrarily downgrading with the difference of second sound pressure level without departing from first threshold, amplify decoded audio number according to volume increase pattern
According to making the difference of first sound pressure level and second sound pressure level between the first threshold and second threshold.
Further, the amplification module includes：
Second judgment module, if exceeding first threshold for the difference of first sound pressure level and second sound pressure level
Whether value then judges first sound pressure level with the difference of second sound pressure level beyond the second threshold；
Volume down little module, if exceeding second threshold for the difference of first sound pressure level and second sound pressure level
Value then according to the decoded voice data of pattern amplification is reduced, makes the difference of first sound pressure level and second sound pressure level
Between the first threshold and the second threshold.
Further, the amplification module includes：
Keep module, if for first sound pressure level and second sound pressure level difference without departing from second threshold,
Amplify decoded voice data according to mode standard.
Further, the amplification module includes：
Second volume increases module, for when first sound pressure level is than second sound pressure level, according to increase pattern
Amplify decoded voice data, make the difference of first sound pressure level after adjusting and second sound pressure level between the first threshold
Between value and second threshold.
Implement the invention has the advantages that：
1st, the present invention can pre-set first threshold and second threshold according to user demand, and first threshold is that user can connect
The minimal difference of the sound pressure level (the second sound pressure level) for the output volume received and the sound pressure level (the first sound pressure level) of ambient noise, second
Threshold value is the maximum difference of acceptable second sound pressure level of user and the first sound pressure level, after being provided with, is occurred in ambient noise
Speaker can be manually operated according to preset condition adjust automatically output volume without user during change.
2nd, the present invention can according to ambient noise automatically adjust output volume, the actual sound size experienced of user not because
The variation of ambient noise and generate larger fluctuation, significantly improve user experience.
Embodiment 2
The present invention also provides a kind of speakers, and the present embodiment is described in detail below in conjunction with attached drawing.Fig. 2 is this hair
The structure diagram for the speaker that bright embodiment 2 provides, for simplicity, illustrates only and those relevant moulds of theme described herein
Block, the overall volume adjusting method based on ambient noise can have many other modules and element.As shown in Fig. 2, this implementation
The speaker that example provides is included with lower module：
For gathering background noise, the first sound pressure level is calculated according to the background noise for background noise acquisition module 201；
Receiving module 202, for receiving voice data to be played；
Audio decoder module 203, for decoding the voice data received；
For obtaining the broadcast sound volume of speaker, the rising tone is calculated according to the broadcast sound volume for broadcast sound volume acquisition module 204
It arbitrarily downgrades；
Amplification module 205 for first sound pressure level and second sound pressure level, amplifies according to comparative result and solves
Voice data after code；
Loud speaker 206, for playing amplified voice data.
Further, the amplification module 205 includes：
First judgment module if lower than second sound pressure level for first sound pressure level, judges first sound
It whether arbitrarily downgrades with the difference of second sound pressure level beyond first threshold；
First volume increases module, for lower than second sound pressure level in first sound pressure level, and first sound
When arbitrarily downgrading with the difference of second sound pressure level without departing from first threshold, amplify decoded audio number according to volume increase pattern
According to making the difference of first sound pressure level and second sound pressure level between the first threshold and second threshold.
Further, the amplification module 205 includes：
Second judgment module, if exceeding first threshold for the difference of first sound pressure level and second sound pressure level
Whether value then judges first sound pressure level with the difference of second sound pressure level beyond the second threshold；
Volume down little module, if exceeding second threshold for the difference of first sound pressure level and second sound pressure level
Value then according to the decoded voice data of pattern amplification is reduced, makes the difference of first sound pressure level and second sound pressure level
Between the first threshold and the second threshold.
Further, the amplification module 205 includes：
Keep module, if for first sound pressure level and second sound pressure level difference without departing from second threshold,
Amplify decoded voice data according to mode standard.
Further, the amplification module 205 includes：
Second volume increases module, for when first sound pressure level is than second sound pressure level, according to increase pattern
Amplify decoded voice data, make the difference of first sound pressure level after adjusting and second sound pressure level between the first threshold
Between value and second threshold.
Those skilled in the art will also be appreciated that the various illustrative components, blocks that the embodiment of the present invention is listed
(illustrative logical block), unit and step can pass through the knot of electronic hardware, computer software, or both
Conjunction is realized.To clearly show that the replaceability of hardware and software (interchangeability), above-mentioned various explanations
Property component (illustrative components), unit and step universally describe their function.Such work(
Can be that specific application and the design requirement of whole system are depended on to realize by hardware or software.Those skilled in the art
Can be for each specific function of applying, the realization of various methods can be used described, but this realization is understood not to
Beyond the scope of protection of the embodiment of the present invention.
Various illustrative logical blocks or unit described in the embodiment of the present invention can by general processor,
Digital signal processor, application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices,
Described function is realized or operated in the design of discrete gate or transistor logic, discrete hardware components or any of the above described combination.
General processor can be microprocessor, optionally, the general processor or any traditional processor, controller,
Microcontroller or state machine.Processor can also be realized by the combination of computing device, such as digital signal processor and micro-
Processor, multi-microprocessor, one or more microprocessors combine a digital signal processor core or any other like
Configuration realize.
The step of method or algorithm described in the embodiment of the present invention can be directly embedded into hardware, processor perform it is soft
The combination of part module or the two.Software module can be stored in RAM memory, flash memory, ROM memory, EPROM storages
Other any form of storaging mediums in device, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this field
In.Illustratively, storaging medium can be connected with processor, so that processor can read information from storaging medium, and
It can be to storaging medium stored and written information.Optionally, storaging medium can also be integrated into processor.Processor and storaging medium can
To be arranged in ASIC, ASIC can be arranged in user terminal.Optionally, processor and storaging medium can also be arranged at use
In different components in the terminal of family.
In one or more illustrative designs, the described above-mentioned function of the embodiment of the present invention can be in hardware, soft
Part, firmware or any combination of this three are realized.If realized in software, these functions can store and computer-readable
It is transmitted on medium or with one or more instruction or code form on the medium of computer-readable.Computer readable medium includes electricity
Brain storaging medium and convenient for allow computer program to be transferred to from a place telecommunication media in other places.Storaging medium can be with
It is that any general or special computer can be with the useable medium of access.For example, such computer readable media can include but
It is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage devices or other
What can be used for carrying store to instruct or data structure and it is other can be by general or special computer or general or specially treated
The medium of the program code of device reading form.In addition, any connection can be properly termed computer readable medium, example
Such as, if software is to pass through a coaxial cable, optical fiber computer, double from a web-site, server or other remote resources
Twisted wire, Digital Subscriber Line (DSL) are defined with being also contained in for the wireless way for transmitting such as example infrared, wireless and microwave
In computer readable medium.The disk (disk) and disk (disc) include compress disk, radium-shine disk, CD, DVD, floppy disk
And Blu-ray Disc, disk is usually with magnetic duplication data, and disk usually carries out optical reproduction data with laser.Combinations of the above
It can also be included in computer readable medium.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further
It is described in detail, it should be understood that the foregoing is merely the specific embodiments of the present invention, is not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of volume adjusting method based on ambient noise, which is characterized in that including：
Background noise is gathered, the first sound pressure level is calculated according to the background noise；
Receive voice data to be played；
Decode the voice data received；
The broadcast sound volume of speaker is obtained, the second sound pressure level is calculated according to the broadcast sound volume；
Compare first sound pressure level and second sound pressure level, decoded voice data is amplified according to comparative result；
Play amplified voice data.
2. according to the method described in claim 1, it is characterized in that, first sound pressure level and second sound pressure level,
Decoded voice data is amplified according to comparative result, including：
If first sound pressure level is lower than second sound pressure level, first sound pressure level and second sound pressure level are judged
Whether difference exceeds first threshold；
If the difference of first sound pressure level and second sound pressure level is put without departing from first threshold according to volume increase pattern
Big decoded voice data makes the difference of first sound pressure level and second sound pressure level between the first threshold and the
Between two threshold values.
3. according to the method described in claim 2, it is characterized in that, judge first sound pressure level and second sound pressure level
Whether difference further includes after first threshold：
If the difference of first sound pressure level and second sound pressure level exceeds the first threshold, first acoustic pressure is judged
Whether the difference of grade and second sound pressure level exceeds the second threshold；
If the difference of first sound pressure level and second sound pressure level exceeds the second threshold, according to volume down small mode
Amplify decoded voice data, make the difference of first sound pressure level and second sound pressure level between the first threshold with
Between the second threshold.
4. according to the method described in claim 3, it is characterized in that, judge first sound pressure level and second sound pressure level
Whether difference further includes after the second threshold：
If the difference of first sound pressure level and second sound pressure level is amplified according to mode standard and is solved without departing from second threshold
Voice data after code.
5. according to the method described in claim 1, it is characterized in that, first sound pressure level and second sound pressure level,
Decoded voice data is amplified according to comparative result, including：
If first sound pressure level is higher than second sound pressure level, amplify decoded audio number according to volume increase pattern
According to making the difference of first sound pressure level after adjusting and second sound pressure level between first threshold and second threshold.
6. a kind of speaker, which is characterized in that including：
For gathering background noise, the first sound pressure level is calculated according to the background noise for background noise acquisition module；
Receiving module, for receiving voice data to be played；
Audio decoder module, for decoding the voice data received；
For obtaining the broadcast sound volume of speaker, the second sound pressure level is calculated according to the broadcast sound volume for broadcast sound volume acquisition module；
Amplification module for first sound pressure level and second sound pressure level, amplifies decoded according to comparative result
Voice data；
Loud speaker, for playing amplified voice data.
7. speaker according to claim 6, which is characterized in that the amplification module includes：
First judgment module if lower than second sound pressure level for first sound pressure level, judges first sound pressure level
Whether exceed first threshold with the difference of second sound pressure level；
First volume increases module, for lower than second sound pressure level in first sound pressure level, and first sound pressure level
During with the difference of second sound pressure level without departing from first threshold, amplify decoded voice data according to volume increase pattern,
Make the difference of first sound pressure level and second sound pressure level between the first threshold and second threshold.
8. speaker according to claim 7, which is characterized in that the amplification module includes：
Second judgment module, if exceeding the first threshold for the difference of first sound pressure level and second sound pressure level,
Then judge first sound pressure level with the difference of second sound pressure level whether beyond the second threshold；
Volume down little module, if exceeding the second threshold for the difference of first sound pressure level and second sound pressure level,
Then amplify decoded voice data according to reducing pattern, make the difference of first sound pressure level and second sound pressure level between
Between the first threshold and the second threshold.
9. speaker according to claim 8, which is characterized in that the amplification module includes：
Keep module, if for first sound pressure level and second sound pressure level difference without departing from second threshold, according to
Mode standard amplifies decoded voice data.
10. speaker according to claim 6, which is characterized in that the amplification module includes：
Second volume increases module, for when first sound pressure level is than second sound pressure level, amplifying according to increase pattern
Decoded voice data, make the difference of first sound pressure level after adjusting and second sound pressure level between first threshold with
Between second threshold.
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| CN110838210A (en) * | 2018-08-16 | 2020-02-25 | 北汽福田汽车股份有限公司 | Alarm method, alarm device and storage medium |
| CN109688498A (en) * | 2018-11-23 | 2019-04-26 | 潍坊歌尔电子有限公司 | A kind of volume adjusting method, earphone and storage medium |
| CN109688498B (en) * | 2018-11-23 | 2020-10-09 | 潍坊歌尔电子有限公司 | Volume adjusting method, earphone and storage medium |
| CN109819375A (en) * | 2019-01-11 | 2019-05-28 | 平安科技（深圳）有限公司 | Adjust method and apparatus, storage medium, the electronic equipment of volume |
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