CN103731677A - Method for obtaining multichannel surround sound effect during dual-channel stereo video and audio playing - Google Patents
Method for obtaining multichannel surround sound effect during dual-channel stereo video and audio playing Download PDFInfo
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- CN103731677A CN103731677A CN201410011364.XA CN201410011364A CN103731677A CN 103731677 A CN103731677 A CN 103731677A CN 201410011364 A CN201410011364 A CN 201410011364A CN 103731677 A CN103731677 A CN 103731677A
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Abstract
The invention provides a method for obtaining the multichannel surround sound effect during dual-channel stereo video and audio playing. The method specifically comprises step 1, maintaining a database at the server end or the local end, wherein the multichannel surround sound audio stream information of every piece of video content such as a movie typically is saved in the database; step 2, extracting fingerprints of the current video content through play software when a user plays the video content and retrieving whether the multichannel surround sound audio stream information matched with the fingerprints exists or not in the database if the multichannel surround sound effect is supported by a video device or a sound output device such as a loudspeaker box, a sound device, a power amplifier and the like of the user; step 3, playing images of the original video content only through the play software and utilizing the matched audio streams as audio output if the matched multichannel surround sound audio stream information is retrieved. Accordingly, the user can experience the multichannel surround sound effect.
Description
Technical field
The invention belongs to multimedia video and play field, is a kind of method that obtains multitrack surround sound audio when broadcasting stereophony is audio-visual.
Background technology
Along with in the family universal of the audio-visual devices such as computer, Set Top Box, appreciating various videos, audio frequency has become a kind of more and more general leisure way.These videos, audio frequency comprise and derive from network, also comprises the memory device that comes from this locality or local area network (LAN).
At present, the audio output device that user has (such as audio amplifier, sound equipment, power amplifier etc.) mainly be take stereophony as main (comprising 2.0 sound channels and 2.1 sound channels), and multichannel audio output equipment (typical as 5.1 sound channels, 7.1 sound channels etc.) uses also not generally.Therefore, existing video, audio content mainly be take stereophony as main, and special, the overwhelming majority in the online audiovisual of network is all stereophony.
Thus, the user who has multichannel audio output equipment can not experience the effect of multitrack surround sound under many circumstances.At present, some audio-visual devices can be converted to the sound of dual track by the simulation on software a kind of effect of approximate multitrack surround sound, but this effect is unsatisfactory.
Summary of the invention
The present invention is a kind of method that obtains multitrack surround sound audio when broadcasting stereophony is audio-visual, concrete form is: 1) at server end or local side, safeguard an information bank, wherein preserve the multitrack surround sound audio stream information of every video content (typical, such as certain film); 2) if user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) are supported multitrack surround sound audio, when user plays video content, playout software extracts the fingerprint of current video content, and whether retrieval has the multitrack surround sound audio stream information matching with fingerprint in information bank; 3) if retrieve the multitrack surround sound audio stream information of coupling, playout software is only play the image of former video content, and using the audio stream matching, as audio frequency, exports, and user just can experience multitrack surround sound audio thus.
Embodiment
Method described in the invention relates to the following aspects:
1. the structure in audio and video information storehouse
1) when user plays multitrack surround sound video content, playout software extracts the fingerprint of current video content, extracts the multitrack surround sound audio stream of current video content simultaneously, and submits, is saved in finger print information and audio stream to information bank.
2) also can be in the situation that obtaining user's agreement, this locality storage of scanning user, mobile storage or local network storage, the multitrack surround sound video content scanning is carried out to the extraction of fingerprint and audio stream, and finger print information and audio stream are submitted to information bank.
3) also can, by staff to the multitrack surround sound video content of collecting, by tool software, carry out batch extracting and warehouse-in.
4) fingerprint of video content includes but not limited to audio/video file name, title, cryptographic Hash etc.
2. mate multitrack surround sound audio stream information
1) whether playout software can detect user automatically audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) support multitrack surround sound audio, user also can specify, provide these information by the user interface of playout software;
2) if user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) are supported multitrack surround sound audio, when user plays video content, playout software extracts the fingerprint of current video content, and whether retrieval has the multitrack surround sound audio stream information matching with fingerprint in information bank.
3) this retrieving can carry out silently on backstage, does not affect current broadcasting.
4) when retrieving the multitrack surround sound audio stream of coupling, can point out user, and audio frequency is outputted to the multitrack surround sound audio stream matching.
5) in order to obtain better sound, draw synchronous effect, can, after retrieving the multitrack surround sound audio stream of coupling, this audio stream be downloaded to this locality.This process can be to user transparent, also can user waiting prompt a period of time.
6) audio frequency is outputted to after the multitrack surround sound audio stream matching, final audio frequency output can be to decode, can not decode yet, depend on ability that whether playout software have a decoding perhaps can, and whether user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) have the ability of decoding perhaps can.
7) special, if the video content of playing provides (such as being the online audio-visual content that this programme service provider provides) by this programme service provider, in the media information being issued by server or media file, can comprise the multitrack surround sound audio stream information matching, now 2) described retrieving can save.
Claims (13)
1. playing stereophony and obtaining when audio-visual the method for multitrack surround sound audio for one kind, it is characterized in that: 1) at server end or local side, safeguard an information bank, wherein preserve every video content (typical, such as certain film) finger print information and multitrack surround sound audio stream information, 2) if user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) support multitrack surround sound audio, when user plays video content, playout software extracts the fingerprint of current video content, and whether retrieval has the multitrack surround sound audio stream information matching with fingerprint in information bank, 3) if retrieve the multitrack surround sound audio stream information of coupling, playout software is only play the image of former video content, and using the audio stream matching, as audio frequency, export.
2. by the described method that obtains multitrack surround sound audio when broadcasting stereophony is audio-visual of claim 1, it is characterized in that, comprising:
At server end or local side, safeguard an information bank, wherein preserve finger print information and the multitrack surround sound audio stream information of every video content (typical, such as certain film).
3. by the described method that obtains multitrack surround sound audio when broadcasting stereophony is audio-visual of claim 1, it is characterized in that, comprising:
If user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) are supported multitrack surround sound audio, when user plays video content, playout software extracts the fingerprint of current video content, and whether retrieval has the multitrack surround sound audio stream information matching with fingerprint in information bank.
4. by the described method that obtains multitrack surround sound audio when broadcasting stereophony is audio-visual of claim 1, it is characterized in that, also comprise:
If the described retrieving of claim 3 retrieves the multitrack surround sound audio stream information of coupling, playout software is only play the image of former video content, and using the audio stream matching, as audio frequency, exports.
5. in the described method of claim 1, the construction method in audio and video information storehouse, it is characterized in that: 1) when user plays multitrack surround sound video content, playout software extracts the fingerprint of current video content, extract the multitrack surround sound audio stream of current video content simultaneously, and finger print information and audio stream are submitted to, be saved in information bank, 2) also can be in the situation that obtaining user's agreement, this locality storage of scanning user, mobile storage or local network storage, the multitrack surround sound video content scanning is carried out to the extraction of finger print information and audio stream, and finger print information and audio stream are submitted to information bank, 3) also can be by staff to the multitrack surround sound video content of collecting, by tool software, carry out batch extracting and warehouse-in, 4) fingerprint of video content includes but not limited to audio/video file name, title, cryptographic Hash etc.
6. in the described method of claim 1, the concrete scheme of coupling multitrack surround sound audio stream information, it is characterized in that, comprise: 1) playout software can detect user's audio-visual devices or audio output device automatically (such as audio amplifier, sound equipment, power amplifier etc.) whether support multitrack surround sound audio, user also can specify by the user interface of playout software, these information is provided, 2) if user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) support multitrack surround sound audio, when user plays video content, playout software extracts the fingerprint of current video content, and whether retrieval has the multitrack surround sound audio stream information matching with fingerprint in information bank, 3) this retrieving can carry out silently on backstage, do not affect current broadcasting, 4) when retrieving the multitrack surround sound audio stream of coupling, can point out user, and audio frequency is outputted to the multitrack surround sound audio stream matching, 5) in order to obtain better sound, draw synchronous effect, can be after retrieving the multitrack surround sound audio stream of coupling, this audio stream is downloaded to this locality, and from this locality, load this audio stream, this process can be to user transparent, also can user waiting prompt a period of time, 6) audio frequency is outputted to after the multitrack surround sound audio stream matching, final audio frequency output can be to decode, can not decode yet, depend on whether playout software has the ability of decoding perhaps can, and whether user's audio-visual devices or audio output device have the ability of decoding perhaps can, 7) if the video content of playing provides (such as being the online audio-visual content that this programme service provider provides) by this programme service provider, in the media information being issued by server or media file, can comprise the multitrack surround sound audio stream information matching, now 2) described retrieving can save.
7. by the concrete scheme of the described coupling multitrack surround sound of claim 6 audio stream information, it is characterized in that, comprising:
Playout software can automatically detect user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) and whether support multitrack surround sound audio, and user also can specify, provide these information by the user interface of playout software.
8. by the concrete scheme of the described coupling multitrack surround sound of claim 6 audio stream information, it is characterized in that, comprising:
If user's audio-visual devices or audio output device (such as audio amplifier, sound equipment, power amplifier etc.) are supported multitrack surround sound audio, when user plays video content, playout software extracts the fingerprint of current video content, and whether retrieval has the multitrack surround sound audio stream information matching with fingerprint in information bank.
9. by the concrete scheme of the described coupling multitrack surround sound of claim 6 audio stream information, it is characterized in that, comprising:
Claim 6 step 2) described retrieving can carry out silently on backstage, does not affect current broadcasting.
10. by the concrete scheme of the described coupling multitrack surround sound of claim 6 audio stream information, it is characterized in that, comprising:
When claim 6 step 2) described retrieving is while retrieving the multitrack surround sound audio stream of coupling, and can point out user, and audio frequency is outputted to the multitrack surround sound audio stream matching.
11. concrete schemes by the described coupling multitrack surround sound of claim 6 audio stream information, is characterized in that, comprising:
In order to obtain better sound, draw synchronous effect, can be in claim 6 step 2) described retrieving retrieves after the multitrack surround sound audio stream of coupling, this audio stream downloaded to this locality, and load this audio stream from this locality.This process can be to user transparent, also can user waiting prompt a period of time.
12. concrete schemes by the described coupling multitrack surround sound of claim 6 audio stream information, is characterized in that, comprising:
Audio frequency is outputted to after the multitrack surround sound audio stream matching, final audio frequency output can be to decode, can not decode yet, depend on ability that whether playout software have a decoding perhaps can, and whether user's audio-visual devices or audio output device have the ability of decoding perhaps can.
13. concrete schemes by the described coupling multitrack surround sound of claim 6 audio stream information, is characterized in that, also comprise:
If the video content of playing provides (such as being the online audio-visual content that this programme service provider provides) by this programme service provider, in the media information being issued by server or media file, can comprise the multitrack surround sound audio stream information matching, now claim 6 step 2) described retrieving can save.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011364.XA CN103731677A (en) | 2014-01-10 | 2014-01-10 | Method for obtaining multichannel surround sound effect during dual-channel stereo video and audio playing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410011364.XA CN103731677A (en) | 2014-01-10 | 2014-01-10 | Method for obtaining multichannel surround sound effect during dual-channel stereo video and audio playing |
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| CN103731677A true CN103731677A (en) | 2014-04-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992053A (en) * | 2015-01-29 | 2016-10-05 | 小米科技有限责任公司 | Streaming media data playing method and device |
| CN110446101A (en) * | 2018-05-04 | 2019-11-12 | 青岛海尔多媒体有限公司 | The method, apparatus and computer readable storage medium of sound output |
-
2014
- 2014-01-10 CN CN201410011364.XA patent/CN103731677A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992053A (en) * | 2015-01-29 | 2016-10-05 | 小米科技有限责任公司 | Streaming media data playing method and device |
| CN110446101A (en) * | 2018-05-04 | 2019-11-12 | 青岛海尔多媒体有限公司 | The method, apparatus and computer readable storage medium of sound output |
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Addressee: Xu Peng Document name: Notification of before Expiration of Request of Examination as to Substance |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |
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| WD01 | Invention patent application deemed withdrawn after publication |