CN102281039A - Automatic adjusting method for volume of video-audio play list - Google Patents
Automatic adjusting method for volume of video-audio play list Download PDFInfo
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- CN102281039A CN102281039A CN2010102003928A CN201010200392A CN102281039A CN 102281039 A CN102281039 A CN 102281039A CN 2010102003928 A CN2010102003928 A CN 2010102003928A CN 201010200392 A CN201010200392 A CN 201010200392A CN 102281039 A CN102281039 A CN 102281039A
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Abstract
The invention discloses an automatic adjusting method for the volume of a video-audio play list. The automatic adjusting method comprises the following steps of: (1) respectively calculating specified audio amplitudes of all video-audio files in a video-audio database; (2) obtaining the specified audio amplitudes of all video-audio files in certain video-audio play list; and (3) adjusting the volume of video and audio played subsequently according to the volume and the specified audio amplitude of certain specified video-audio. According to the automatic adjusting method for the volume of the video-audio play list, the volume of the video-audio play list is automatically adjusted by calculating the audio amplitudes, thereby enabling a user to enjoy in both audio and visual feeling.
Description
Technical field
The present invention relates to volume adjusting method, particularly a kind of method of looking the audio playlist volume from moving adjusting of calculating by the audio frequency amplitude.
Background technology
Along with the development of audio-video network, video-audio program is the gesture of magnanimity growth, and the user has dual mode when watching the video-audio program of looking on the audio frequency website: (1) a kind of mode is to watch singlely or listen to certain video-audio program; (2) another kind of mode is to watch or listen to some video-audio program in bulk.These are watched in bulk or are listened in some video-audio program, because the audio frequency amplitude difference of each video-audio program, therefore in the actual play process, the different situation of volume of each video-audio program of playing continuously can appear, bring uncomfortable in the audiovisual impression to the user.
For example: a playlist comprises: A, B, the audio frequency amplitude that three of C look audio file A is very little, the audio frequency amplitude of B and C is very big, the user is playing A, B, in the time of three files of C, the volume of player can be adjusted on the S, for looking audio file A, it is very comfortable that volume S on this player sounds, but when player is played to the next one automatically and looks audio file B, volume on the player remains S, player plays was looked audio file B will to be that volume becomes very high this time, therefore needed to regulate automatically player is looked audio file B in broadcast volume.
In application number is 200710075911 invention, a kind of output volume automatic regulation method of media player has been proposed, but this invention proposes is that volume with player is arranged on the same value, look audio playlist volume automatic regulating system and we propose, be according to the audio frequency amplitude of looking audio frequency, specify different output volumes to give player.Therefore its principle has the difference of essence.
In view of this, those skilled in the art provide a kind of audio playlist volume automatic regulating method of looking at the problems referred to above.
Summary of the invention
The invention provides a kind of audio playlist volume automatic regulating method of looking, overcome the difficulty of prior art, calculate from the moving purpose of looking the audio playlist volume of regulating to reach by the audio frequency amplitude.
The present invention adopts following technical scheme:
The invention provides a kind of audio playlist volume automatic regulating method of looking, may further comprise the steps:
(1) calculates respectively that all look the appointment audio frequency amplitude of audio file in the video/audio storehouse;
(2) obtain certain and look all look the appointment audio frequency amplitude of audio file in the audio playlist;
(3) according to the volume of looking audio frequency of some appointments with specify the audio frequency amplitude, the volume of looking audio frequency of regulating follow-up play.
Preferably, in the described step (1), comprise the set of video file or audio file in the described video/audio storehouse.
Preferably, in the described step (1), described appointment audio frequency amplitude be at a time between in the section, the maximum of looking the amplitude set of representative voice height in the audio signal of audio frequency.
Preferably, in the described step (1), calculate described appointment audio frequency amplitude and comprise the steps:
(11) calculate the amplitude set of the audio signal of certain preceding N second of looking audio file;
The maximum of the amplitude set that (12) obtains is looked the appointment audio frequency amplitude of audio frequency as this.
Preferably, in the described step (2), the described audio playlist of looking is meant the orderly set of looking audio file that is used to continuous broadcast.
Preferably, in the described step (3), establish and specify certain volume of looking audio file as reference volume sj, the appointment audio frequency amplitude of its correspondence is aj, and other volume is according to this reference volume and specify the audio frequency amplitude to regulate automatically;
The adjusting formula is as follows: establishing si is to play volume set when i is individual to look audio file, and the appointment audio frequency amplitude of its correspondence is ai, then si=sj/aj*ai.
Preferably, in the described step (3), also comprise:
When the user specifies certain volume of looking voice playing, with the described volume of voice playing of looking of user's appointment as reference volume;
When the user does not specify certain volume of looking voice playing, be reference volume then with first volume of looking audio file that is played of looking audio playlist.
Owing to adopted above-mentioned technology, compared with prior art, the present invention has following advantage:
The audio playlist volume automatic regulating method of looking of the present invention calculates from moving the adjusting by the audio frequency amplitude and looks the audio playlist volume, can bring enjoyment in the audiovisual impression to the user.
Further specify the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a flow chart of looking the audio playlist volume automatic regulating method of the present invention;
Fig. 2 is the player automatic regulating volume schematic diagram among the embodiment;
Fig. 3 is the flow chart of looking the audio playlist volume automatic regulating method among the embodiment.
Embodiment
Introduce specific embodiments of the invention below by Fig. 1 to 3.
Shown in Fig. 1 or 2, the invention provides a kind of audio playlist volume automatic regulating method of looking, may further comprise the steps:
(1) calculates respectively that all look the appointment audio frequency amplitude of audio file in the video/audio storehouse;
(2) obtain certain and look all look the appointment audio frequency amplitude of audio file in the audio playlist;
(3) according to the volume of looking audio frequency of some appointments with specify the audio frequency amplitude, the volume of looking audio frequency of regulating follow-up play.
In the described step (1), comprise the set of video file or audio file in the described video/audio storehouse, described appointment audio frequency amplitude be at a time between in the section, the maximum of looking the amplitude set of representative voice height in the audio signal of audio frequency.
Calculating described appointment audio frequency amplitude comprises the steps:
(11) calculate the amplitude set of the audio signal of certain preceding N second of looking audio file;
The maximum of the amplitude set that (12) obtains is looked the appointment audio frequency amplitude of audio frequency as this.
In the described step (2), the described audio playlist of looking is meant the orderly set of looking audio file that is used to continuous broadcast.
In the described step (3), establish and specify certain volume of looking audio file as reference volume sj, the appointment audio frequency amplitude of its correspondence is aj, and other volume is according to this reference volume and specify the audio frequency amplitude to regulate automatically;
The adjusting formula is as follows: establishing si is to play volume set when i is individual to look audio file, and the appointment audio frequency amplitude of its correspondence is ai, then si=sj/aj*ai.
When the user specifies certain volume of looking voice playing, with the described volume of voice playing of looking of user's appointment as reference volume;
When the user does not specify certain volume of looking voice playing, be reference volume then with first volume of looking audio file that is played of looking audio playlist.
Shown in Fig. 2 or 3, embodiment of looking the audio playlist volume automatic regulating method of the present invention is as follows:
1) calculates in the video/audio storehouse amplitude set of the audio signal of all preceding N seconds of looking audio file;
2) maximum that the amplitude that obtains is gathered is looked " specifying the audio frequency amplitude " of audio frequency as correspondence;
3) user plays certain and looks audio playlist;
4) certain volume of looking audio file is designated as reference volume sj, and the appointment audio frequency amplitude of its correspondence is aj;
Other volume is according to this reference volume and specify the audio frequency amplitude to regulate automatically, and it is as follows to regulate formula:
If si plays volume set when i is individual to look audio file, the appointment audio frequency amplitude of its correspondence is ai, then
si＝sj/aj*ai；
5) other volume is regulated automatically according to this reference volume and appointment audio frequency amplitude.
In summary, the audio playlist volume automatic regulating method of looking of the present invention calculates from moving the adjusting by the audio frequency amplitude and looks the audio playlist volume, can bring enjoyment in the audiovisual impression to the user.
Above-described embodiment only is used to illustrate technological thought of the present invention and characteristics, its purpose is to make those skilled in the art can understand content of the present invention and implements according to this, can not only limit claim of the present invention with present embodiment, be all equal variation or modifications of doing according to disclosed spirit, still drop in the claim of the present invention.
Claims (7)
1. look the audio playlist volume automatic regulating method for one kind, it is characterized in that: may further comprise the steps:
(1) calculates respectively that all look the appointment audio frequency amplitude of audio file in the video/audio storehouse;
(2) obtain certain and look all look the appointment audio frequency amplitude of audio file in the audio playlist;
(3) according to the volume of looking audio frequency of some appointments with specify the audio frequency amplitude, the volume of looking audio frequency of regulating follow-up play.
2. the audio playlist volume automatic regulating method of looking as claimed in claim 1 is characterized in that: in the described step (1), comprise the set of video file or audio file in the described video/audio storehouse.
3. the audio playlist volume automatic regulating method of looking as claimed in claim 1 is characterized in that: in the described step (1), described appointment audio frequency amplitude be at a time between in the section, the maximum of looking the amplitude set of representative voice height in the audio signal of audio frequency.
4. as any described audio playlist volume automatic regulating method of looking in the claim 1 to 3, it is characterized in that: in the described step (1), calculate described appointment audio frequency amplitude and comprise the steps:
(11) calculate the amplitude set of the audio signal of certain preceding N second of looking audio file;
The maximum of the amplitude set that (12) obtains is looked the appointment audio frequency amplitude of audio frequency as this.
5. the audio playlist volume automatic regulating method of looking as claimed in claim 1 is characterized in that: in the described step (2), the described audio playlist of looking is meant the orderly set of looking audio file that is used to continuous broadcast.
6. the audio playlist volume automatic regulating method of looking as claimed in claim 1, it is characterized in that: in the described step (3), if specify certain volume of looking audio file as reference volume sj, the appointment audio frequency amplitude of its correspondence is aj, and other volume is according to this reference volume and specify the audio frequency amplitude to regulate automatically;
The adjusting formula is as follows: establishing si is to play volume set when i is individual to look audio file, and the appointment audio frequency amplitude of its correspondence is ai, then si=sj/aj*ai.
7. the audio playlist volume automatic regulating method of looking as claimed in claim 6 is characterized in that: in the described step (3), also comprise:
When the user specifies certain volume of looking voice playing, with the described volume of voice playing of looking of user's appointment as reference volume;
When the user does not specify certain volume of looking voice playing, be reference volume then with first volume of looking audio file that is played of looking audio playlist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010200392.8A CN102281039B (en) | 2010-06-12 | 2010-06-12 | Automatic adjusting method for volume of video-audio play list |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010200392.8A CN102281039B (en) | 2010-06-12 | 2010-06-12 | Automatic adjusting method for volume of video-audio play list |
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| Publication Number | Publication Date |
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| CN102281039A true CN102281039A (en) | 2011-12-14 |
| CN102281039B CN102281039B (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010154A (en) * | 2019-03-26 | 2019-07-12 | 北京雷石天地电子技术有限公司 | A kind of volume equalization methods and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060294091A1 (en) * | 2005-06-24 | 2006-12-28 | Kuan-Hong Hsieh | System and method for generating a play-list |
| CN1929298A (en) * | 2005-09-07 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Audio frequency processing system and method |
| CN101267189A (en) * | 2008-04-16 | 2008-09-17 | 深圳华为通信技术有限公司 | Automatic volume adjusting device, method and mobile terminal |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060294091A1 (en) * | 2005-06-24 | 2006-12-28 | Kuan-Hong Hsieh | System and method for generating a play-list |
| CN1929298A (en) * | 2005-09-07 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Audio frequency processing system and method |
| CN101267189A (en) * | 2008-04-16 | 2008-09-17 | 深圳华为通信技术有限公司 | Automatic volume adjusting device, method and mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010154A (en) * | 2019-03-26 | 2019-07-12 | 北京雷石天地电子技术有限公司 | A kind of volume equalization methods and device |
| CN110010154B (en) * | 2019-03-26 | 2021-04-09 | 北京雷石天地电子技术有限公司 | Volume balancing method and device |
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| CN102281039B (en) | 2015-05-20 |
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Effective date of registration: 20200518 Address after: 310052 room 508, floor 5, building 4, No. 699, Wangshang Road, Changhe street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Alibaba (China) Co.,Ltd. Address before: 200003 Shanghai Xuhui District Xietu Road No. 1238 Building No. 6, X2 Creative Park Patentee before: SHANGHAI TUDOU NETWORK TECHNOLOGY Co.,Ltd. |
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