CN104506781A - Multi-directional audio signal acquisition method and device for on-line teaching - Google Patents
Multi-directional audio signal acquisition method and device for on-line teaching Download PDFInfo
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- CN104506781A CN104506781A CN201510001426.3A CN201510001426A CN104506781A CN 104506781 A CN104506781 A CN 104506781A CN 201510001426 A CN201510001426 A CN 201510001426A CN 104506781 A CN104506781 A CN 104506781A
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Abstract
The invention relates to a multi-directional audio signal acquisition method and a multi-directional audio signal acquisition device for on-line teaching. A plurality of cameras are arranged on a teaching site and are used for acquiring video signals from multiple visual angles; a plurality of microphones are arranged on the teaching site and are used for acquiring sound field signals; the video signals and the sound field signals are used for video and audio encoding synthesis to obtain a video and audio encoding synthesized signal which is sent to a source end; the source end sends the video and audio encoding synthesized signal to a remote server through an Internet.
Description
Technical field
The present invention relates to a kind of multi-faceted video/audio signal acquisition method for online teaching and device.
Background technology
In traditional video and audio communication system, add by a camera transmission that microphone realizes video/audio.A camera is connected to recording or communication terminal equipment, for gathering vision signal, audio frequency relies on the built-in microphone being built in camera or terminal itself to realize, and adopts independent outer microphone to realize more better recording quality in some video acquisitions or communication system.When existing video and audio system is applied to online education, although can realize some courses from line to the migration on line, generally experience under being worse than line far away and impart knowledge to students.Trace it to its cause, the system of being can not realize the complete transmission of audiovisual well, thus for the student of online education, educates the understanding to the course such as music, language under being difficult to reach line.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of multi-faceted video/audio signal acquisition method for online teaching and device, has better video and audio effect, obtains better online teaching and experiences.
Based on same inventive concept, the present invention has two independently technical schemes:
1, for a multi-faceted video/audio signal acquisition method for online teaching, it is characterized in that: teaching scene is provided with multiple camera, gather multi-angle video signal; Teaching scene is provided with multiple microphone, gathers acoustic field signal; Vision signal and acoustic field signal are carried out video encoding synthesis, and video encoding composite signal is sent to source; Video and audio composite signal is sent to remote server by the Internet by source.
Can carry out cutting splicing synthesis process to the multi-angle video signal gathered after, then vision signal and acoustic field signal are carried out video encoding synthesis, be about in the Video coding of splicing synthesis, embed corresponding sound field coding.
After various visual angles video/audio signal can be sent to remote server by the Internet by source, remote server, again according to the request of the client of live client or program request, sends the video/audio signal of certain viewing angles.
Said source can be computer, panel computer, work station or mobile phone terminal.
2, a kind of harvester of said method, it is characterized in that: be provided with multiple camera and multiple microphone, the signal output part of camera connects video signal processing unit, the signal output part of microphone connects audio signal processing unit, the output of video signal processing unit, the signal output part of audio signal processing unit connect video and audio synthesis unit, and the signal output part of video and audio synthesis unit connects source.
Video signal processing unit can carry out cutting splicing synthesis process to multi-angle video signal.
When detect only have camera to start time, video signal processing unit can directly outputting video signal to video and audio synthesis unit.
Said source can be computer, panel computer, work station or mobile phone terminal.
The beneficial effect that the present invention has:
The present invention scene of imparting knowledge to students is provided with multiple camera, can gather multi-angle video signal; Teaching scene is provided with multiple microphone, gathers acoustic field signal; Vision signal and acoustic field signal are carried out video encoding synthesis, and video encoding composite signal is sent to source; Video and audio composite signal is sent to terminal by the Internet by source; The present invention can gather multi-angle video signal and acoustic field signal, and vision signal and acoustic field signal are carried out video encoding synthesis, can obtain better video and audio effect, and student can obtain better online teaching and experience.Various visual angles teaching picture can allow the student's clearly performance of teacher or hand mouth action, and in like manner, teacher also can by the various visual angles synthesis picture instruction of papil more targetedly of student side.The sound field collection meeting accurate recording transmission teacher of multi-microphone or each sound details of student side, thus reach Teaching Experience on the spot in person.
The present invention can carry out cutting splicing synthesis process to the multi-angle video signal gathered after, again vision signal and acoustic field signal are carried out video encoding synthesis, the present invention can not need to carry out cutting splicing synthesis process to the multi-angle video signal gathered early stage yet, after various visual angles video/audio signal can be sent to remote server by the Internet by source, remote server is again according to the request of the client of live client or program request, send the video/audio signal of certain viewing angles, easy to use.
Accompanying drawing explanation
Accompanying drawing is the comprehensive video/audio signal harvester schematic diagram of the present invention for online teaching.
Embodiment
As shown in the figure, teaching scene is provided with multiple camera 1 and multiple microphone 2, the signal output part of camera 1 connects video signal processing unit 3, the signal output part of microphone connects audio signal processing unit 4, the output of video signal processing unit 3, the signal output part of audio signal processing unit 4 connect video and audio synthesis unit 5, and the signal output part of video and audio synthesis unit 5 connects source 6.Video signal processing unit 5 can carry out cutting splicing synthesis process to multi-angle video signal, and source 6 can be computer or work station.
Embodiment one: during for music teaching, with the video pictures in a camera shooting teacher front, the concrete performance details picture of at least one camera shooting teacher local in addition, by video signal processing unit 3, these picture splicings are being become a video pictures, exporting and be sent to video and audio synthesis unit 5.When detect only have camera to start time, video signal processing unit 3 does not need to carry out video pictures splicing, and direct outputting video signal is to video and audio synthesis unit 5.Video pictures is encoded by video and audio synthesis unit 5 together with the acoustic field signal collected, and that is acoustic field signal encoding code stream is synchronously embedded in video code flow, then by transmission line to source, in the present embodiment, source selects computer.Video and audio composite signal is sent to remote server by the Internet by source, and source is docked by the teacher of online education network software and opposite end or student, realizes online teaching.
Embodiment two: video signal processing unit 3 does not carry out reduction splicing to various visual angles picture, only that they are all encoded, after being transferred to remote server by source, remote server, again according to the request of the client of live client or program request, sends the video/audio signal of certain viewing angles.
Claims (8)
1. for a multi-faceted video/audio signal acquisition method for online teaching, it is characterized in that: teaching scene is provided with multiple camera, gather multi-angle video signal; Teaching scene is provided with multiple microphone, gathers acoustic field signal; Vision signal and acoustic field signal are carried out video encoding synthesis, and video encoding composite signal is sent to source; Video and audio composite signal is sent to remote server by the Internet by source.
2. method according to claim 1, cutting splicing synthesis process it is characterized in that: can be carried out to the multi-angle video signal gathered after, again vision signal and acoustic field signal are carried out video encoding synthesis, be about in the Video coding of splicing synthesis, embed corresponding sound field coding.
3. method according to claim 1, various visual angles video/audio signal it is characterized in that: after can be sent to remote server by the Internet by source, remote server, again according to the request of the client of live client or program request, sends the video/audio signal of certain viewing angles.
4., according to the method for claim 1-3 described in any one, it is characterized in that: said source can be computer, panel computer, work station or mobile phone terminal.
5. one kind realizes the harvester of method described in claim 1, it is characterized in that: be provided with multiple camera and multiple microphone, the signal output part of camera connects video signal processing unit, the signal output part of microphone connects audio signal processing unit, the output of video signal processing unit, the signal output part of audio signal processing unit connect video and audio synthesis unit, and the signal output part of video and audio synthesis unit connects source.
6. harvester according to claim 5, is characterized in that: video signal processing unit can carry out cutting splicing synthesis process to multi-angle video signal.
7. harvester according to claim 5, is characterized in that: when detect only have camera to start time, video signal processing unit can directly outputting video signal to video and audio synthesis unit.
8., according to the harvester of claim 5-7 described in any one, it is characterized in that: said source can be computer, panel computer, work station or mobile phone terminal.
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| CN201510001426.3A CN104506781A (en) | 2015-01-05 | 2015-01-05 | Multi-directional audio signal acquisition method and device for on-line teaching |
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| CN201510001426.3A CN104506781A (en) | 2015-01-05 | 2015-01-05 | Multi-directional audio signal acquisition method and device for on-line teaching |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867363A (en) * | 2015-05-19 | 2015-08-26 | 苏州鱼骨头电子科技有限公司 | Voice on demand system for children |
| CN105427693A (en) * | 2015-12-31 | 2016-03-23 | 天津浩之杉教育科技有限公司 | Remote studying system |
| CN106027919A (en) * | 2016-06-30 | 2016-10-12 | 北京和兴宏图科技有限公司 | Video camera |
| CN106303436A (en) * | 2016-08-23 | 2017-01-04 | 北京汉博信息技术有限公司 | A kind of information-pushing method for long-distance education and system |
| CN107770135A (en) * | 2016-08-19 | 2018-03-06 | 范子文 | The music live broadcasting method and device of electronic musical instrument |
| CN108271033A (en) * | 2016-12-30 | 2018-07-10 | 武汉斗鱼网络科技有限公司 | A kind of net cast method and device |
| CN110007716A (en) * | 2019-03-08 | 2019-07-12 | 合肥宝龙达信息技术有限公司 | A kind of notebook of dual camera and Double-number microphone |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400541A (en) * | 2002-08-20 | 2003-03-05 | 西安交通大学 | Multimedia real-time lessons-giving system based on IP web |
| US20090135134A1 (en) * | 2007-11-28 | 2009-05-28 | Iris Jane Prager | Education method and system including at least one user interface |
| CN102833584A (en) * | 2012-05-22 | 2012-12-19 | 中华电信股份有限公司 | Video streaming method of multi-view interactive television |
| CN103123802A (en) * | 2011-11-18 | 2013-05-29 | 北京同步科技有限公司 | Course recording system and audio processing method thereof |
-
2015
- 2015-01-05 CN CN201510001426.3A patent/CN104506781A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400541A (en) * | 2002-08-20 | 2003-03-05 | 西安交通大学 | Multimedia real-time lessons-giving system based on IP web |
| US20090135134A1 (en) * | 2007-11-28 | 2009-05-28 | Iris Jane Prager | Education method and system including at least one user interface |
| CN103123802A (en) * | 2011-11-18 | 2013-05-29 | 北京同步科技有限公司 | Course recording system and audio processing method thereof |
| CN102833584A (en) * | 2012-05-22 | 2012-12-19 | 中华电信股份有限公司 | Video streaming method of multi-view interactive television |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867363A (en) * | 2015-05-19 | 2015-08-26 | 苏州鱼骨头电子科技有限公司 | Voice on demand system for children |
| CN105427693A (en) * | 2015-12-31 | 2016-03-23 | 天津浩之杉教育科技有限公司 | Remote studying system |
| CN106027919A (en) * | 2016-06-30 | 2016-10-12 | 北京和兴宏图科技有限公司 | Video camera |
| CN107770135A (en) * | 2016-08-19 | 2018-03-06 | 范子文 | The music live broadcasting method and device of electronic musical instrument |
| CN106303436A (en) * | 2016-08-23 | 2017-01-04 | 北京汉博信息技术有限公司 | A kind of information-pushing method for long-distance education and system |
| CN108271033A (en) * | 2016-12-30 | 2018-07-10 | 武汉斗鱼网络科技有限公司 | A kind of net cast method and device |
| CN108271033B (en) * | 2016-12-30 | 2021-01-01 | 武汉斗鱼网络科技有限公司 | Video live broadcast method and device |
| CN110007716A (en) * | 2019-03-08 | 2019-07-12 | 合肥宝龙达信息技术有限公司 | A kind of notebook of dual camera and Double-number microphone |
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