CN106293606A - Sound-volume control system and method for controlling volume - Google Patents
Sound-volume control system and method for controlling volume Download PDFInfo
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- CN106293606A CN106293606A CN201610671416.5A CN201610671416A CN106293606A CN 106293606 A CN106293606 A CN 106293606A CN 201610671416 A CN201610671416 A CN 201610671416A CN 106293606 A CN106293606 A CN 106293606A
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- audio
- video file
- gain value
- average gain
- gain
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
Abstract
A kind of sound-volume control system and method for controlling volume, described method for controlling volume includes: record the average gain value of the effective audio frequency having this audio/video file in providing audio/video file, the file header of described audio/video file；When playing described audio/video file, by to described audio/video file decoding, after the average gain value of the effective audio frequency obtaining described audio/video file, described average gain value is compared with standard gain reference value, obtaining gain coefficient, described average gain value is multiplied by gain coefficient equal to described standard gain reference value；Gain during audio/video file described in player plays is adjusted according to described gain coefficient.Described method for controlling volume, it can be avoided that there is, when playing audio/video file, the problem that volume change is bigger, improves the experience of user.
Description
Technical field
The present invention relates to volume control field, particularly relate to a kind of sound-volume control system and method for controlling volume.
Background technology
A lot of Online Videos is had, including film, TV play, variety show and other videos on intelligent television.But
Owing to original recording mode is different or later stage processing mode is different, the volume of different video self has bigger inclined
Difference, the volume of a lot of videos is compared bigger than normal or less than normal.If user watches two or more videos continuously, although
The volume of the audio frequency of each video is in the reasonable scope, but can find that the sound of certain video can become suddenly big or diminish,
Consumer's Experience is caused very bad impact.
Although the volume of intelligent television can be adjusted by user, but the volume of adjustment TV hardware itself,
But due to the volume of video own gap cannot by user oneself adjust, need a kind of new sound-volume control system and
Method for controlling volume solves the problems referred to above.
Summary of the invention
The technical problem to be solved is to provide a kind of sound-volume control system and method for controlling volume, it is to avoid sound
The problem that video file occurs sound volume difference in playing process.
In order to solve the problems referred to above, the invention provides a kind of method for controlling volume, including: audio/video file, institute are provided
The average gain value of the effective audio frequency having this audio/video file is recorded in stating the file header of audio/video file；Play described sound/
During video file, by described audio/video file decoding, it is thus achieved that the average gain of effective audio frequency of described audio/video file
After value, described average gain value being compared with standard gain reference value, it is thus achieved that gain coefficient, described average gain value is multiplied by increasing
Benefit coefficient is equal to described standard gain reference value；When adjusting audio/video file described in player plays according to described gain coefficient
Gain.
Optionally, the method for the average gain value recording effective audio frequency of this audio/video file in file header includes: will
Audio/video file obtains the average gain value of effective audio frequency of described audio/video file after completely playing, and by described average increasing
Benefit value recorded in the file header of diaphone/video file.
Optionally, described audio/video file is network audio/video file, records this audio/video file in file header
The effectively method of the average gain value of audio frequency includes: obtain having of described audio/video file after completely being play by audio/video file
The average gain value of effect audio frequency, and described average gain value is uploaded onto the server, server is by described average gain value record
In the file header of diaphone/video file.
Optionally, calculate in audio/video file and remove the decoded meansigma methods of quiet pulse code modulation data, described
Meansigma methods is as the average gain value of effective audio frequency of described audio/video file.
Optionally, described standard gain reference value is arranged in the player software playing described audio/video file.
Technical scheme also provides for a kind of sound-volume control system, including: memory module, it is used for storing audio/video
File, in the file header of described audio/video file, record has the average gain value of effective audio frequency of this audio/video file；Play
Device, including decoding unit and gain adjusting unit, described decoding unit is for when playing audio/video file, by described
Audio/video file decoding, it is thus achieved that after the average gain value of effective audio frequency of described audio/video file, by described average gain
Value compares with standard gain reference value, it is thus achieved that gain coefficient, and described average gain value is multiplied by gain coefficient and increases equal to described standard
Benefit reference value, described gain adjusting unit for adjusting gain when playing audio/video file according to gain coefficient.
Optionally, described memory module is arranged at this locality or server end.
Optionally, also include that control module, described control module are arranged at this locality or server end；Described player is also used
Effective audio frequency of described audio/video file is obtained after completely being play by the audio/video file not recording average gain value
Average gain value, and described average gain value is sent to described control module；Described control module is for by described average increasing
In the file header of the audio/video file that benefit value recorded correspondence.
Optionally, the average gain value of effective audio frequency of audio/video file is to remove quiet pulse in audio/video file
The decoded meansigma methods of coding modulation data.
Optionally, described standard gain reference value is arranged in the decoding unit of described player.
The sound-volume control system of the present invention and method for controlling volume, obtain audio/video file corresponding to overall by decoding
The average gain value of volume, then compares acquisition one gain coefficient, adjusts according to described gain coefficient with standard gain reference value
The software gain of player so that player is when playing different audio/video file, and the overall volume of output is consistent, Bu Huifa
Raw volume becomes suddenly problem that is big or that diminish.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for controlling volume of the embodiment of the invention；
Fig. 2 is the structural representation of the sound-volume control system of the bright detailed description of the invention of we；
Fig. 3 is the structural representation of the sound-volume control system of the embodiment of the invention.
Detailed description of the invention
The sound-volume control system provided the present invention below in conjunction with the accompanying drawings and the detailed description of the invention of method for controlling volume are done
Describe in detail.
Refer to Fig. 1, for the schematic flow sheet of the method for controlling volume of an embodiment of the present invention.
Step S1: in providing audio/video file, the file header of described audio/video file, record has this audio/video file
The effectively average gain value of audio frequency.
The file header of described audio/video file is generally used for recording the parameter information of described audio/video file, such as track
Quantity, sample frequency, picture size, bit rate etc..In embodiments of the present invention, the file header of described audio/video file is also
Record has the average gain value of effective audio frequency of this audio/video file.Described average gain value is total corresponding to audio/video file
Body volume.
Wherein, effective audio frequency refer to remove quiet after pulse code modulation data, described pulse code modulation data
Corresponding to the sampled signal that sound is sampled with certain frequency, the width of the size representative voice of described sampled signal after decoding
Degree.
In a specific embodiment of the present invention, the audio/video file provided in described step S1 is network audio/video
File, is stored on the webserver.The side of the average gain value of effective audio frequency of this audio/video file is recorded in file header
Method includes: after completely being play by player by audio/video file, obtains effective audio frequency average of described audio/video file
Yield value, and described average gain value is uploaded onto the server, described average gain value be recorded corresponding audio/video by server
In the file header of file.Concrete, the sampled signal obtained after effective audio decoder is averaged, is described audio/video
The average gain value of effective audio frequency of file.In an embodiment of the invention, described arithmetic mean method can be passed through
Obtain described average gain value；In another embodiment of the present invention, it is also possible to obtained described flat by weighted average method
All yield values, described average weighted weight coefficient can be according to decoding chip, sound effect algorithms and the playback equipment used
Performances etc. are adjusted.
By web editor, the audio/video file on website can be played out, thus obtain described audio/video file
Average gain value, it is also possible to when being the user's a certain audio/video file on Play Server first, it is thus achieved that this audio/video
The average gain value of file, uploads onto the server, and records to the file header of this audio/video file, and subsequent user is play again
The average gain value of this audio/video file just can be directly obtained during this audio/video file.
In another embodiment of the present invention, the audio/video file provided in step S1 is local audio/video literary composition
Part, is stored in the memory module of this locality.The average gain value of effective audio frequency of this audio/video file is recorded in file header
Method includes: obtain the average gain value of effective audio frequency of described audio/video file after completely being play by audio/video file, and
Described average gain value be recorded in the file header of diaphone/video file.
Step S2: when playing described audio/video file, by described audio/video file decoding, it is thus achieved that described sound/regard
After the average gain value of effective audio frequency of frequency file, described average gain value is compared with standard gain reference value, it is thus achieved that increase
Benefit coefficient.
Described average gain value is corresponding to total volume of audio/video file, the average gain value meeting of different audio/video files
Variant, cause in playing process, in the case of fixing playback equipment volume, play different audio/video file meetings continuously
Produce volume and become suddenly problem that is big or that diminish.It is therefore desirable to carry out audio effect processing at bottom player in playing process
During, total volume of audio/video file is processed, the difference sense of desalination user.In embodiments of the present invention, with one
Individual standard gain reference value is as the reference value being adjusted audio/video file volume, and then the software adjusting player increases
Benefit, the total volume of output making different audio/video file is identical.The corresponding optimal output volume of described standard gain reference value, permissible
Sound volume setting is most preferably listened to by human ear, it is also possible to be engineer according to the performance of player, user habit by acoustics expert
Deng setting.Described standard gain reference value can be set in player.
According to audio/video file decoding, it is thus achieved that average gain value and described standard gain reference value, it is possible to obtain
One gain coefficient, described average gain value is multiplied with gain coefficient equal to described standard gain reference value.Different for volume
Audio/video file can obtain different gain coefficients respectively.
Step S3: adjust gain during audio/video file described in player plays according to described gain coefficient.
Can by described gain coefficient directly as software gain during audio/video file described in player plays, for
The audio/video file of different volumes, by adjusting the software gain of player so that the overall volume one of output valve playback equipment
Cause, thus in the case of the gain setting playback equipment does not changes, will not go out when playing different audio/video file continuously
Existing volume becomes suddenly problem that is big or that diminish, such that it is able to improve the experience of user.
Above-mentioned method for controlling volume, is obtained the average gain value of audio/video file, then joins with standard gain by decoding
Examining value and compare acquisition gain coefficient, described average gain value is multiplied by gain coefficient and is equal to described standard gain reference value, according to institute
State gain coefficient and adjust the software gain of player so that player when playing different audio/video file, the overall sound of output
Amount is consistent, and volume will not be occurred to become suddenly problem that is big or that diminish.
Embodiments of the present invention also provide for a kind of sound-volume control system.
Refer to Fig. 2, for the structural representation of the sound-volume control system of the embodiment of the invention.
Described sound-volume control system includes: memory module 100, and the player 200 being connected with described server 100.
Described memory module 100 can be arranged at this locality or server end, is used for storing audio/video file, so that
Described audio/video file can be local audio/video file or network audio/video file.The literary composition of described audio/video file
In part head, record has the average gain value of effective audio frequency of this audio/video file.Wherein, effective audio frequency refer to remove quiet after
Pulse code modulation data, corresponding to sound is sampled with certain frequency after the decoding of described pulse code modulation data
Sampled signal, the amplitude of the size representative voice of described sampled signal.
For being arranged on the memory module of server end, record in the file header of described network audio/video file this sound/
The method of the average gain value of effective audio frequency of video file includes: after completely being play by player by audio/video file, obtain
Take the average gain value of effective audio frequency of described audio/video file, and described average gain value is uploaded onto the server, server
Described average gain value be recorded in the file header of diaphone/video file.Concrete, to obtain after effective audio decoder
Sampled signal is averaged, and is the average gain value of effective audio frequency of described audio/video file.An enforcement in the present invention
In mode, described can obtain described average gain value by arithmetic mean method；In another embodiment of the present invention, also
Can obtain described average gain value by weighted average method, described average weighted weight coefficient can be according to the solution used
The performance etc. of code chip, sound effect algorithms and playback equipment is adjusted.
In the detailed description of the invention of the present invention, by web editor, the audio/video file on website can be broadcast
Put, thus obtain the average gain value of described audio/video file, it is also possible to be a certain on Play Server first of user
During audio/video file, it is thus achieved that the average gain value of this audio/video file, upload onto the server, and record to this audio/video literary composition
In the file header of part, when subsequent user plays this audio/video file again, just can directly obtain the average increasing of this audio/video file
Benefit value.
For being arranged on the memory module of server end, record in the file header of described local audio/video file this sound/
The method of the average gain value of effective audio frequency of video file includes: obtain described sound/regard after completely being play by audio/video file
The average gain value of effective audio frequency of frequency file, and described average gain value be recorded the file header of diaphone/video file
In.
Described average gain value is corresponding to total volume of audio/video file, the average gain value meeting of different audio/video files
Variant, cause in playing process, in the case of fixing playback equipment volume, play different audio/video file meetings continuously
Produce volume and become suddenly problem that is big or that diminish.It is therefore desirable to carry out audio effect processing at bottom player in playing process
During, total volume of audio/video file is processed, the difference sense of desalination user.
Described player 200 for playing the audio/video file in memory module 100, specifically include decoding unit 201,
The gain adjusting unit 202 being connected with described decoding unit 201.Described decoding unit 200 is connected with server 100, is used for obtaining
Take the audio/video file in memory module 100, and it is decoded, it is thus achieved that putting down of effective audio frequency of described audio/video file
All after yield value, described average gain value is compared with standard gain reference value, it is thus achieved that gain coefficient, described average gain value
It is multiplied by gain coefficient equal to described standard gain reference value.Described player 200 using standard gain reference value as to sound/
The reference value that video file volume is adjusted, the corresponding optimal output volume of described standard gain reference value, can be special by acoustics
Family most preferably listens to sound volume setting by human ear, it is also possible to being engineer sets according to the performance of player, user habit etc., institute
State standard gain reference value can be set in player 200.
Described gain adjusting unit 202 adjusts for the gain coefficient obtained according to described decoding unit 201 plays sound/regard
Gain during frequency file.For the audio/video file of different volumes, by adjusting the software gain of player so that output valve
The overall volume of playback equipment is consistent, thus in the case of the gain setting playback equipment does not changes, plays not continuously
Do not have volume during unisonance/video file and become suddenly problem that is big or that diminish, such that it is able to improve the experience of user.
It is also possible in described memory module 100 store the audio/video file not recording average gain value, described broadcasting
After device 200 is additionally operable to completely play the audio/video file not recording average gain value, obtain institute by decoding unit 201
State the average gain value of effective audio frequency of audio/video file, and described average gain value is uploaded to memory module 100, storage
In the file header of the audio/video file that module 100 is additionally operable to recorded described average gain value correspondence, when this audio/video literary composition
When part is play again, its average gain value can be directly obtained.
Refer to Fig. 3, in another detailed description of the invention of the present invention, described sound-volume control system also includes: control module
300, described control module 300 is connected with memory module 100 and player 200, and described control module 300 can be arranged at this
Ground or server end.In this embodiment, described player 200 is connected with described control module 300 by decoding unit 201,
Described player 200 obtains described audio/video literary composition after completely being play by the audio/video file not recording average gain value
The average gain value of effective audio frequency of part, and by decoding unit 201, described average gain value is sent to described control module
300；The audio/video file that described control module 300 is corresponding in being additionally operable to described average gain value recorded memory module 100
File header in.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a method for controlling volume, it is characterised in that including:
Thering is provided audio/video file, the interior record of the file header of described audio/video file has effective audio frequency of this audio/video file
Average gain value；
When playing described audio/video file, by described audio/video file decoding, it is thus achieved that described audio/video file effective
After the average gain value of audio frequency, described average gain value is compared with standard gain reference value, it is thus achieved that gain coefficient, described flat
All yield values are multiplied by gain coefficient equal to described standard gain reference value；
Gain during audio/video file described in player plays is adjusted according to described gain coefficient.
Method for controlling volume the most according to claim 1, it is characterised in that record this audio/video file in file header
The method of average gain value of effective audio frequency include: obtain described audio/video file after completely being play by audio/video file
The effectively average gain value of audio frequency, and described average gain value be recorded in the file header of diaphone/video file.
Method for controlling volume the most according to claim 1, it is characterised in that described audio/video file is network audio/video
File, the method for the average gain value recording effective audio frequency of this audio/video file in file header includes: by audio/video literary composition
Part obtains the average gain value of effective audio frequency of described audio/video file after completely playing, and described average gain value is uploaded
To server, described average gain value be recorded in the file header of diaphone/video file by server.
4. according to the method for controlling volume according to any one of claim 1-3, it is characterised in that calculate in audio/video file
Removing the quiet decoded meansigma methods of pulse code modulation data, described meansigma methods is effective as described audio/video file
The average gain value of audio frequency.
5. according to the method for controlling volume according to any one of claim 1-3, it is characterised in that by described standard gain reference
Value is arranged in the player software playing described audio/video file.
6. a sound-volume control system, it is characterised in that including:
Memory module, is used for storing audio/video file, and in the file header of described audio/video file, record has this audio/video file
The average gain value of effective audio frequency；
Player, including decoding unit and gain adjusting unit, described decoding unit is for when playing audio/video file, logical
Cross described audio/video file decoding, it is thus achieved that after the average gain value of effective audio frequency of described audio/video file, by described
Average gain value compares with standard gain reference value, it is thus achieved that gain coefficient, and described average gain value is multiplied by gain coefficient equal to institute
Stating standard gain reference value, described gain adjusting unit for adjusting gain when playing audio/video file according to gain coefficient.
Sound-volume control system the most according to claim 6, it is characterised in that described memory module is arranged at this locality or service
Device end.
8. according to the sound-volume control system described in claim 6 or 7, it is characterised in that also include control module, described control mould
Block is arranged at this locality or server end；The audio/video file that described player is additionally operable to not recording average gain value is complete
Obtain the average gain value of effective audio frequency of described audio/video file after broadcasting, and described average gain value is sent to described
Control module；Described control module is in the file header that described average gain value recorded the audio/video file of correspondence.
9. according to the sound-volume control system described in claim 6 or 7, it is characterised in that putting down of effective audio frequency of audio/video file
All yield values are to remove the decoded meansigma methods of quiet pulse code modulation data in audio/video file.
10. according to the sound-volume control system described in claim 6 or 7, it is characterised in that described standard gain reference value is arranged at
In the decoding unit of described player.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610671416.5A CN106293606A (en) | 2016-08-16 | 2016-08-16 | Sound-volume control system and method for controlling volume |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610671416.5A CN106293606A (en) | 2016-08-16 | 2016-08-16 | Sound-volume control system and method for controlling volume |
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Family
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| CN201610671416.5A Pending CN106293606A (en) | 2016-08-16 | 2016-08-16 | Sound-volume control system and method for controlling volume |
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Cited By (5)
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| CN107506170A (en) * | 2017-08-18 | 2017-12-22 | 广东欧珀移动通信有限公司 | volume adjusting method, device, terminal device and storage medium |
| CN108563418A (en) * | 2017-12-28 | 2018-09-21 | 珠海市君天电子科技有限公司 | A kind of audio volume adjusting method, device, electronic equipment and storage medium |
| CN110493634A (en) * | 2019-07-04 | 2019-11-22 | 北京雷石天地电子技术有限公司 | A kind of method for controlling volume and system |
| CN112151004A (en) * | 2020-09-23 | 2020-12-29 | 大众问问(北京)信息科技有限公司 | Hybrid broadcast method, device, equipment and storage medium |
| CN114428600A (en) * | 2020-10-29 | 2022-05-03 | 深圳Tcl新技术有限公司 | Audio track gain adjustment method and device, intelligent terminal and storage medium |
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| CN114428600A (en) * | 2020-10-29 | 2022-05-03 | 深圳Tcl新技术有限公司 | Audio track gain adjustment method and device, intelligent terminal and storage medium |
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