CN107124622A - A kind of audio frequency and video interflow compact system and method - Google Patents
A kind of audio frequency and video interflow compact system and method Download PDFInfo
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- CN107124622A CN107124622A CN201710244772.3A CN201710244772A CN107124622A CN 107124622 A CN107124622 A CN 107124622A CN 201710244772 A CN201710244772 A CN 201710244772A CN 107124622 A CN107124622 A CN 107124622A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/233—Processing of audio elementary streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present invention provides a kind of audio frequency and video interflow compact system and method, and the system includes CDN server, the sound pick-up outfit with plug-flow function and interflow server；CDN server is simultaneously to sound pick-up outfit and interflow server push member video flowing；First video flowing that sound pick-up outfit is pushed according to CDN server carries out audio recording, and the audio stream of generation is pushed into interflow server；The interflow pressing parameter that first video flowing and audio stream update according to dynamic is carried out interflow compacting by interflow server in real time.The present invention provides first video flowing by CDN server, audio stream is provided by sound pick-up outfit, and the compacting of audio frequency and video interflow is carried out on the server of interflow, first video flowing and audio stream are provided in same equipment and collaborate compacting compared to existing, realize the effect of interflow compacting separation, the pressure of interflow server is alleviated, and interflow server carries out interflow compacting according to dynamic pressing parameter, and the sound in the video flowing after compacting can be kept to draw synchronous in real time.
Description
Technical field
The present invention relates to audio frequency and video processing technology field, collaborate compact system and side more particularly, to a kind of audio frequency and video
Method.
Background technology
, it is necessary to be suppressed after the audio of audio video synchronization is collected and recorded with the video flowing received in video annotation is live
It is pushed to server again afterwards.
In order to realize this function, current way is typically to have two kinds, and one kind is to carry out audio at video record scene to adopt
Collection, then suppresses the video recorded simultaneously interflow different with audio progress；Second is that video is synchronized at explanation end
Dub, interflow compacting is carried out to video and audio, the new video stream for carrying out collaborating to be pressed into is pushed to server again.
The first implementation above may require that the equipment for carrying out interflow compacting must be at video record scene；Second
Implementation will also carry out interflow compacting while audio recording due to explaining end to Voice ＆ Video, therefore to explaining end
Performance requirement is higher.
The content of the invention
The present invention provides a kind of audio frequency and video interflow compacting for overcoming above mentioned problem or solving the above problems at least in part
System and method, the problem of server stress is big when can overcome the compacting of audio frequency and video interflow.
According to an aspect of the invention, there is provided a kind of audio frequency and video interflow compact system, including CDN server, have
The sound pick-up outfit and interflow server of plug-flow function；
The CDN server, for simultaneously to the sound pick-up outfit and the interflow server push member video flowing；
The sound pick-up outfit, first video flowing for being pushed according to the CDN server carries out audio recording, and audio is recorded
The audio stream produced after system is pushed to interflow server；
The interflow server, is pushed for the first video flowing for pushing the CDN server and the sound pick-up outfit
The interflow pressing parameter that audio stream updates according to dynamic carries out interflow compacting in real time.
Beneficial effects of the present invention are：First video flowing is provided by CDN server, audio stream is provided by sound pick-up outfit,
And the compacting of audio frequency and video interflow is carried out on the server of interflow, first video flowing and audio are provided in same equipment compared to existing
Flow and collaborate compacting, realize the effect of interflow compacting separation, alleviate the pressure of interflow server, and interflow server is pressed
Interflow compacting is carried out according to dynamic pressing parameter, the sound in the video flowing after compacting can be kept to draw synchronous in real time.
On the basis of above-mentioned technical proposal, the present invention can also make following improvement.
Further, the CDN server is additionally operable to regard to the sound pick-up outfit and the interflow server push member
When frequency flows, the timestamp of first video flowing is pushed to sound pick-up outfit and interflow server.
Further, the sound pick-up outfit is additionally operable to：
The timestamp of the first video flowing pushed according to CDN server, and time during sound pick-up outfit progress audio recording
Stamp, using both differences as first time difference, and is pushed to interflow clothes by audio stream and the first time difference simultaneously
Business device.
Further, the interflow server, specifically for：
The timestamp of the first video pushed according to CDN server and timestamp when receiving first video flowing, will
Both differences are used as the second time difference.
Further, the interflow server is additionally operable to：
The difference of the first time difference and second time difference is calculated, and is suppressed the difference as interflow
The audio stream that the first video flowing and sound pick-up outfit that parameter is pushed to CDN server are pushed carries out interflow compacting.
Further, the sound pick-up outfit is additionally operable to：
Every prefixed time interval check and correction request is sent to CDN server；
The CDN server is additionally operable to：
It it is the new time by the update of time stamp of first video flowing when receiving the check and correction request that the sound pick-up outfit is sent
Stamp, and the new timestamp of first video flowing is pushed to sound pick-up outfit and interflow server.
Further, the sound pick-up outfit is additionally operable to：
According to the new timestamp of the CDN first video flowings pushed, new first time difference is calculated；
The interflow server is additionally operable to：
The new timestamp of the first video flowing pushed according to CDN server, calculates the second new time difference；It is additionally operable to calculate
New difference between new first time difference and the second time difference newly, and it regard new difference as new interflow pressing parameter
Interflow compacting is carried out to audio stream and video flowing.
According to another aspect of the present invention, a kind of compacting of audio frequency and video interflow and method for pushing are additionally provided, including：
S1, interflow server receives first video flowing of CDN server push and the sound pick-up outfit with plug-flow function is pushed away
The audio stream sent, wherein, the audio stream is sound pick-up outfit according to first video flowing progress audio recording that CDN server is pushed
Generation；
The interflow that the audio stream that S2, first video flowing that CDN server is pushed and sound pick-up outfit are pushed updates according to dynamic
Pressing parameter carries out interflow compacting.
Further, the CDN server pushes first video flowing to the interflow server and the sound pick-up outfit simultaneously
With the timestamp of first video flowing.
The step S1 also includes：
Collaborate server when receiving the audio stream that sound pick-up outfit is pushed, while receiving the very first time that sound pick-up outfit is pushed
Difference, wherein, the first time difference is that the timestamp and sound pick-up outfit of first video flowing that CDN server is pushed record sound
The difference between timestamp during frequency；And,
Collaborate the timestamp for first video flowing that server is pushed according to CDN server and receive CDN server push
Timestamp during first video flowing, regard both differences as the second time difference.
Further, the step S2 is specifically included：
Collaborate server and calculate the first time difference and the difference of second time difference, and the difference is made
The audio stream that the first video flowing and sound pick-up outfit pushed for interflow pressing parameter to CDN server is pushed carries out interflow compacting.
Brief description of the drawings
Fig. 1 collaborates the Organization Chart of compact system for the audio frequency and video of an embodiment of the present invention；
Fig. 2 collaborates the flow chart of drawing method for the audio frequency and video of another embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Referring to Fig. 1, Fig. 1 provides the audio frequency and video interflow compact system of one embodiment of the invention, including CDN server,
Sound pick-up outfit and interflow server with plug-flow function.The CDN server, for simultaneously to the sound pick-up outfit and described
Collaborate server push member video flowing；The sound pick-up outfit, first video flowing for being pushed according to the CDN server carries out sound
Frequency is recorded, and the audio stream produced after audio recording is pushed into interflow server；The interflow server, for by the CDN
The interflow pressing parameter that the audio stream that first video flowing of server push and the sound pick-up outfit are pushed updates according to dynamic is real-time
Carry out interflow compacting.
CDN (Content Delivery Network, content distributing network) server gets member from outside in real time and regarded
Frequency flows, and in real time by first video flowing of acquisition simultaneously to the sound pick-up outfit with plug-flow function and interflow server push.Recording
Equipment receives first video flowing of CDN server push, and first video flowing is played out, and carries out audio recording, and will record
The audio stream generated afterwards pushes to interflow server.Collaborate server according to the first video flowing received from CDN server and from record
The audio stream that sound equipment is pushed, interflow compacting is carried out to first video flowing and audio stream according to interflow pressing parameter.Entirely suppressing
During, interflow pressing parameter is that dynamic updates, and the interflow pressing parameter updated according to dynamic is to audio stream and video flowing
Suppressed, ensure that the video flowing middle pitch suppressed in real time draws synchronous.
The present embodiment provides first video flowing by CDN server, provides first video flowing by CDN server, passes through recording
Equipment provides audio stream, and the compacting of audio frequency and video interflow is carried out on the server of interflow, is above carried in same equipment compared to existing
For first video flowing and audio stream and collaborate compacting, realize interflow compacting separation effect, alleviate interflow server pressure
Power, and interflow server carries out interflow compacting according to dynamic pressing parameter, and the sound in the video flowing after compacting can be kept in real time
Draw synchronous.
In another embodiment of the present invention, the CDN server is serviced to the sound pick-up outfit and the interflow
When device pushes first video flowing, the timestamp of first video flowing is also pushed to sound pick-up outfit and interflow server.
CDN server during to sound pick-up outfit and interflow server push member video flowing, due to CDN server and
The network state between network state and CDN server and interflow server between sound pick-up outfit may be different.Therefore, i.e.,
Make CDN server simultaneously to sound pick-up outfit and interflow server push member video flowing, sound pick-up outfit receive first video flowing when
Between and interflow server receive time of first video flowing and be likely to different, in this case, interflow server interflow compacting
There is sound in video flowing afterwards and draw nonsynchronous phenomenon.Nonsynchronous problem is drawn in order to solve sound, and CDN is to sound pick-up outfit and conjunction
While streaming server pushes first video flowing, the timestamp of first video flowing is also pushed to sound pick-up outfit and interflow server.
In one embodiment of the invention, sound pick-up outfit be additionally operable to the first video flowing pushed according to CDN server when
Between stab, and sound pick-up outfit carry out audio recording when timestamp, using both differences as first time difference, and simultaneously will
Audio stream and the first time difference are pushed to interflow server.
When sound pick-up outfit receives the timestamp of first video flowing and first video flowing of CDN server push, to first video
Stream carries out audio recording, and timestamp during record audio recording, by the timestamp of first video flowing and sound pick-up outfit recording audio
When timestamp between time difference be used as first time difference.From first time difference it can be seen that CDN server is pushed
Time delay to first video flowing of sound pick-up outfit.The audio stream and first time difference of recording are pushed to interflow by sound pick-up outfit
Server.
Collaborate server, specifically for the timestamp of first video pushed according to CDN server and receive the member
Timestamp during video flowing, regard both differences as the second time difference.Pushed when interflow server receives CDN server
First video flowing and first video flowing timestamp when, when the timestamp of first video flowing and interflow server received into first video
Time difference between timestamp can be seen that CDN server is pushed to conjunction as the second time difference from the second time difference
The time delay of first video flowing of streaming server.
In one embodiment of the invention, interflow server is additionally operable to calculate the first time difference and described second
The difference of time difference, and set the difference as first video flowing for being pushed to CDN server of interflow pressing parameter and recording
The standby audio stream pushed carries out interflow compacting.
Interflow server receive sound pick-up outfit push audio stream and first time difference, and calculate second when
Between difference, be typically due to certain factor, such as the different factor of network state, first time difference and the second time difference are
Different.Therefore, the interflow server in the present embodiment calculates the difference between first time difference and the second time difference, and
The difference is subjected to interflow compacting as interflow pressing parameter to audio stream and first video flowing.In video flowing after the compacting of interflow
It is synchronous that sound, which is drawn, overcomes conventional sound and draws nonsynchronous problem.
In another embodiment of the present invention, the sound pick-up outfit is additionally operable to：Every prefixed time interval to CDN service
Device sends check and correction request.The CDN server is additionally operable to：When receiving the check and correction request that the sound pick-up outfit is sent, by member
The update of time stamp of video flowing is new timestamp, and the new timestamp of first video flowing is pushed into sound pick-up outfit and interflow service
Device.
It is unstable due to network condition, cause first time difference and the second time difference be not it is stable, because
This calculates newest interflow pressing parameter, it is necessary to be updated in real time to first time difference and the second time difference,
Interflow compacting is carried out to audio stream and video flowing using newest interflow pressing parameter.When implementing, sound pick-up outfit is every pre-
If time interval sends check and correction request to CDN server.When CDN server receives the check and correction request of sound pick-up outfit transmission,
It is new timestamp by the update of time stamp of first video flowing, and the new timestamp of first video flowing is pushed to sound pick-up outfit and interflow
Server.
In another embodiment of the present invention, the sound pick-up outfit is additionally operable to：According to the new of the CDN first video flowings pushed
Timestamp, calculates new first time difference.The interflow server is additionally operable to：The first video flowing pushed according to CDN server
New timestamp, calculate the second new time difference；It is additionally operable to calculate new first time difference and the second new time difference
Between new difference, and new difference is subjected to interflow compacting as new interflow pressing parameter to audio stream and video flowing.
When sound pick-up outfit receives the new timestamp of first video flowing of CDN server push, sound pick-up outfit utilizes foregoing
Identical method calculates new first time difference, and new first time difference is pushed into interflow server.Collaborate server
The new timestamp of the first video flowing pushed according to CDN server, the second new time difference is calculated using method as hereinbefore
Value, and the new first time difference pushed according to sound pick-up outfit, calculate new first time difference and the second new time difference
New difference between value, and the new difference is subjected to interflow compacting as new interflow pressing parameter to audio stream and video flowing.
Dynamic updates interflow pressing parameter in real time, and the interflow pressing parameter after interflow server updates according to dynamic is carried out to audio/video flow
Interflow compacting, ensure that the sound in the video flowing after the compacting of interflow is drawn all is in real time different.
It is the compacting of audio frequency and video interflow and the method for pushing of another embodiment of the present invention referring to Fig. 2, including：S1, interflow clothes
The audio stream that first video flowing that device reception CDN server of being engaged in is pushed and the sound pick-up outfit with plug-flow function are pushed, wherein, institute
It is that first video flowing that sound pick-up outfit is pushed according to CDN server carries out audio recording and generated to state audio stream；S2, CDN is taken
The interflow pressing parameter progress interflow pressure that the audio stream that the first video flowing and sound pick-up outfit that business device is pushed are pushed updates according to dynamic
System.
The present embodiment provides first video flowing by CDN server, provides first video flowing by CDN server, passes through recording
Equipment provides audio stream, and the compacting of audio frequency and video interflow is carried out on the server of interflow, is above carried in same equipment compared to existing
For first video flowing and audio stream and collaborate compacting, realize interflow compacting separation effect, alleviate interflow server pressure
Power, and interflow server carries out interflow compacting according to dynamic pressing parameter, and the sound in the video flowing after compacting can be kept in real time
Draw synchronous.
In one embodiment of the invention, CDN server is pushed away to the interflow server and the sound pick-up outfit simultaneously
Send the timestamp of first video flowing and first video flowing.
Collaborate server when receiving the audio stream that sound pick-up outfit is pushed, while receiving the very first time that sound pick-up outfit is pushed
Difference, wherein, the first time difference is that the timestamp and sound pick-up outfit of first video flowing that CDN server is pushed record sound
The difference between timestamp during frequency.Collaborate the timestamp for first video flowing that server is pushed according to CDN server and receive
Timestamp during first video flowing that CDN server is pushed, regard both differences as the second time difference.
Then, interflow server calculates the first time difference and the difference of second time difference, and will be described
The audio stream that the first video flowing and sound pick-up outfit that difference is pushed as interflow pressing parameter to CDN server are pushed carries out interflow pressure
System.It is synchronous so to carry out the sound in the video flowing after the compacting of interflow to draw, and solves current video flowing middle pitch and draws asynchronous
The problem of.
During whole interflow compacting, sound pick-up outfit sends check and correction every prefixed time interval to CDN server please
Ask.It it is the new time by the update of time stamp of first video flowing when CDN server receives the check and correction request of sound pick-up outfit transmission
Stamp, and the new timestamp of first video flowing is pushed to sound pick-up outfit and interflow server.When sound pick-up outfit receives CDN server
During the new timestamp of first video flowing of push, sound pick-up outfit calculates new first time difference using method same as before, will
New first time difference is pushed to interflow server.First video flowing for being pushed according to CDN server of interflow server it is new when
Between stab, calculate the second new time difference using method as hereinbefore, and pushed according to sound pick-up outfit new first when
Between difference, calculate the new difference between new first time difference and the second new time difference, and using the new difference as new
Interflow pressing parameter interflow compacting is carried out to audio stream and video flowing.
Audio frequency and video interflow compact system and method that the present invention is provided, provide first video flowing by CDN server, pass through tool
The sound pick-up outfit for having plug-flow function provides audio stream, and the compacting of audio frequency and video interflow is carried out on the server of interflow, compared to existing
First video flowing and audio stream are provided in same equipment and collaborate compacting, the effect of interflow compacting separation is realized, mitigates
The pressure of interflow server.The time of first video flowing is sent by calculating sound pick-up outfit recording audio and CDN server respectively
Difference, and calculate interflow server and receive the time difference that first video flowing and CDN server send first video flowing, and by this
The difference of two time differences carries out interflow compacting as interflow pressing parameter to audio stream and video flowing, to ensure interflow compacting
Sound in video flowing afterwards draws identical, eliminates because the sound that the factors such as network delay are caused draws nonsynchronous problem.In whole sound
During the compacting of video interflow, dynamic in real time to update interflow pressing parameter, interflow server is according to the interflow after dynamic renewal
Pressing parameter carries out interflow compacting to audio/video flow, and ensure that the sound in the video flowing after the compacting of interflow is drawn all is different in real time
's.
Finally, the present processes are only preferably embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of audio frequency and video collaborate compact system, it is characterised in that including content distribution network CDN service device, sound pick-up outfit and
Collaborate server；
The CDN server, for simultaneously to the sound pick-up outfit and the interflow server push member video flowing；
The sound pick-up outfit, first video flowing for being pushed according to the CDN server carries out audio recording, after audio recording
The audio stream of generation is pushed to interflow server；
The interflow server, the audio pushed for the first video flowing for pushing the CDN server and the sound pick-up outfit
Flow the interflow pressing parameter updated according to dynamic and carry out interflow compacting in real time.
2. audio frequency and video as claimed in claim 1 collaborate compact system, it is characterised in that the CDN server be additionally operable to
When the sound pick-up outfit and the interflow server push member video flowing, by the timestamp of first video flowing be pushed to sound pick-up outfit and
Collaborate server.
3. audio frequency and video as claimed in claim 2 collaborate compact system, it is characterised in that the sound pick-up outfit is additionally operable to：
The timestamp of the first video flowing pushed according to CDN server, and timestamp during sound pick-up outfit progress audio recording, will
Audio stream and the first time difference are pushed to interflow server by both differences simultaneously as first time difference.
4. audio frequency and video as claimed in claim 3 collaborate compact system, it is characterised in that the interflow server is additionally operable to：
The timestamp of the first video pushed according to CDN server and timestamp when receiving first video flowing, incite somebody to action both
Difference be used as the second time difference.
5. audio frequency and video as claimed in claim 4 collaborate compact system, it is characterised in that the interflow server is additionally operable to：
The difference of the first time difference and second time difference is calculated, and regard the difference as interflow pressing parameter
The audio stream that the first video flowing and sound pick-up outfit pushed to CDN server is pushed carries out interflow compacting.
6. audio frequency and video as claimed in claim 5 collaborate compact system, it is characterised in that the sound pick-up outfit is additionally operable to：
Every prefixed time interval check and correction request is sent to CDN server；
The CDN server is additionally operable to：
It is new timestamp by the update of time stamp of first video flowing when receiving the check and correction request that the sound pick-up outfit is sent, and
The new timestamp of first video flowing is pushed to sound pick-up outfit and interflow server.
7. audio frequency and video as claimed in claim 6 collaborate compact system, it is characterised in that the sound pick-up outfit is additionally operable to：
According to the new timestamp of the CDN first video flowings pushed, new first time difference is calculated；
The interflow server is additionally operable to：
The new timestamp of the first video flowing pushed according to CDN server, calculates the second new time difference；It is additionally operable to calculate newly
New difference between first time difference and the second new time difference, and using new difference as new interflow pressing parameter to sound
Frequency stream and video flowing carry out interflow compacting.
8. a kind of audio frequency and video collaborate drawing method, it is characterised in that including：
What S1, first video flowing that interflow server reception CDN server is pushed and the sound pick-up outfit with plug-flow function were pushed
Audio stream, wherein, the audio stream is that first video flowing that sound pick-up outfit is pushed according to CDN server carries out audio recording and generated
's；
Suppress at the interflow that the audio stream that S2, first video flowing that CDN server is pushed and sound pick-up outfit are pushed updates according to dynamic
Parameter carries out interflow compacting.
9. audio frequency and video as claimed in claim 8 collaborate drawing method, it is characterised in that the CDN server is simultaneously to described
Collaborate server and the sound pick-up outfit pushes the timestamp of first video flowing and first video flowing.
The step S1 also includes：
Collaborate server when receiving the audio stream that sound pick-up outfit is pushed, while the very first time for receiving sound pick-up outfit push is poor
Value, wherein, the first time difference is the timestamp and sound pick-up outfit recording audio for first video flowing that CDN server is pushed
When timestamp between difference；And,
The timestamp for first video flowing that interflow server is pushed according to CDN server is regarded with the member for receiving CDN server push
Timestamp when frequency flows, regard both differences as the second time difference.
10. audio frequency and video as claimed in claim 9 collaborate drawing method, it is characterised in that the step S2 is specifically included：
Collaborate server and calculate the first time difference and the difference of second time difference, and regard the difference as conjunction
The audio stream that the first video flowing and sound pick-up outfit that stream pressing parameter is pushed to CDN server are pushed carries out interflow compacting.
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| CN110856009A (en) * | 2019-11-27 | 2020-02-28 | 广州华多网络科技有限公司 | Network karaoke system, audio and video playing method of network karaoke and related equipment |
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| CN110856009A (en) * | 2019-11-27 | 2020-02-28 | 广州华多网络科技有限公司 | Network karaoke system, audio and video playing method of network karaoke and related equipment |
| CN110856009B (en) * | 2019-11-27 | 2021-02-26 | 广州华多网络科技有限公司 | Network karaoke system, audio and video playing method of network karaoke and related equipment |
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