CN112532910A - Video conference system with echo prevention function - Google Patents
Video conference system with echo prevention function Download PDFInfo
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- CN112532910A CN112532910A CN202011260059.6A CN202011260059A CN112532910A CN 112532910 A CN112532910 A CN 112532910A CN 202011260059 A CN202011260059 A CN 202011260059A CN 112532910 A CN112532910 A CN 112532910A
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- 230000002265 prevention Effects 0.000 title claims abstract description 14
- 101150093547 AUX1 gene Proteins 0.000 description 6
- 101100367246 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SWA2 gene Proteins 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/04—Studio equipment; Interconnection of studios
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
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- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephonic Communication Services (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
A video conference system with an echo prevention function comprises a local conference system, wherein the local conference system comprises a local video system, a local training system and a sound console; the audio output of the local video system is connected with the first audio channel of the sound console, and the first channel of the sound console is connected with the input end of the local video system; the audio output of the local training system is connected with a second audio channel of the sound console, and the second channel of the sound console is communicated with the input end of the local training system; the audio acquisition devices of the local video system and the local training system are microphones with echo eliminating function; the first audio channel and the first channel are used for inputting and outputting audio of a local video system, and in order to avoid loop generation, sound input of the first channel of the first audio channel of the sound mixing console is closed; similarly, the second audio channel and the second channel are input and output of audio of the local training system, and sound input of the second channel of the second audio channel of the sound console is closed to avoid loop generation.
Description
Technical Field
The invention relates to the technical field of audio, in particular to a video conference system with an echo prevention function.
Background
A video conference system, also called a video conference system, refers to a system device for realizing a teleconference by transmitting audio, video and file data to each other through a transmission line and multimedia devices by individuals or groups in two or more different places, so as to realize real-time and interactive communication.
More and more units start practical network video conferences to improve the working efficiency of the colleagues in different places, but the current video conference system cannot well achieve the effect of preventing echoes due to the design problem and the control problem.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a video conference system with an echo prevention function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a video conference system with an echo prevention function comprises a local conference system, wherein the local conference system comprises a local video system, a local training system and a sound console;
the audio output of the local video system is connected to a first audio channel of the sound mixing console, and the first channel of the sound mixing console is connected to the input end of the local video system;
the audio output of the local training system is connected to a second audio channel of the sound console, and the second channel of the sound console is communicated with the input end of the local training system;
the audio acquisition devices of the local video system and the local training system are microphones with echo eliminating function;
the first audio channel and the first channel are used for inputting and outputting audio of a local video system, and in order to avoid loop generation, sound input of the first channel of the first audio channel of the sound mixing console is closed; similarly, the second audio channel and the second channel are used for inputting and outputting audio of the local training system, and in order to avoid loop generation, sound input of the second channel of the second audio channel of the sound mixing console is closed.
Preferably, the local video system is a Bao-Ding-Tong video conference system, and the local training system is a gao-Gao training system.
Preferably, the voice output device of the video conference system for Baoyitong is a sound box.
Preferably, a plurality of sets of said local conference systems are linked via a network.
Further, the microphone for eliminating echo has a noise reduction function.
Further, the local conferencing system includes a plurality of telephony devices.
Furthermore, the interface of the telephone device is connected with a first operational amplifier, and the interface connected with the telephone is connected with a second operational amplifier.
Preferably, the interface for connecting the telephone set is connected with the local telephone device
The invention has the beneficial effects that: sound input/output adjustment method: because the first channel of the sound console and the first audio channel are both the audio input and the audio output of the local video system, in order to avoid the loop, the sound input of the first channel (STEREO1) and the first audio channel (AUX1) of the sound console is closed. Similarly, because the second audio channel (AUX2) and the second channel (STEREO2) of the sound console are input and output by the visual height system, in order to avoid echo generated by the visual height system, the sound input of the second audio channel (AUX2) of the second channel (STEREO2) of the sound console is closed by the sound console. As shown in fig. 2, the other input sound channels open the first audio channel (AUX1) and the second audio channel (AUX2) respectively according to needs, and the local wired microphone and the wireless microphone can be inputted with sound to the local video system and the local training system. The sound output of the first audio channel (AUX1) and the second audio channel (AUX2) of the sound console can be respectively adjusted according to the sound sizes of the output sound to the local video system and the local training system, so that the local sound size and the sound size of the video conference system can be respectively controlled, and the system has convenience and flexibility. The scheme processes the echo from the aspect of sound source head and audio layout, and ensures that the echo can not occur in the conference.
Drawings
FIG. 1 is a schematic diagram of the overall system architecture of one embodiment of the present invention;
fig. 2 is a schematic structural diagram of a local conference system according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-2, a video conference system with an echo prevention function includes a local conference system including a local video system, a local training system, and a sound console;
the audio output of the local video system is connected to a first audio channel of the sound mixing console, and the first channel of the sound mixing console is connected to the input end of the local video system;
the audio output of the local training system is connected to a second audio channel of the sound console, and the second channel of the sound console is communicated with the input end of the local training system;
the audio acquisition devices of the local video system and the local training system are microphones with echo eliminating function;
the first audio channel and the first channel are used for inputting and outputting audio of a local video system, and in order to avoid loop generation, sound input of the first channel of the first audio channel of the sound mixing console is closed; similarly, the second audio channel and the second channel are used for inputting and outputting audio of the local training system, and in order to avoid loop generation, sound input of the second channel of the second audio channel of the sound mixing console is closed.
Sound input/output adjustment method: because the first channel of the sound console and the first audio channel are both the audio input and the audio output of the local video system, in order to avoid the loop, the sound input of the first channel (STEREO1) and the first audio channel (AUX1) of the sound console is closed. Similarly, because the second audio channel (AUX2) and the second channel (STEREO2) of the sound console are input and output by the visual height system, in order to avoid echo generated by the visual height system, the sound input of the second audio channel (AUX2) of the second channel (STEREO2) of the sound console is closed by the sound console. As shown in fig. 2, the other input sound channels open the first audio channel (AUX1) and the second audio channel (AUX2) respectively according to needs, and the local wired microphone and the wireless microphone can be inputted with sound to the local video system and the local training system. The sound output of the first audio channel (AUX1) and the second audio channel (AUX2) of the sound console can be respectively adjusted according to the sound sizes of the output sound to the local video system and the local training system, so that the local sound size and the sound size of the video conference system can be respectively controlled, and the system has convenience and flexibility. The scheme processes the echo from the aspect of sound source head and audio layout, and ensures that the echo can not occur in the conference.
Preferably, the local video system is a Bao-Ding-Tong video conference system, and the local training system is a gao-Gao training system.
Preferably, the voice output device of the video conference system for Baoyitong is a sound box.
Further, a plurality of sets of the local conference systems are coupled through a network.
Further, the microphone for eliminating echo has a noise reduction function.
Further, the local conferencing system includes a plurality of telephony devices.
Furthermore, the interface of the telephone device is connected with a first operational amplifier, and the interface connected with the telephone is connected with a second operational amplifier.
Preferably, the interface for connecting the telephone set is connected with the local telephone device.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. A video conference system with an echo prevention function comprises a local conference system, and is characterized in that the local conference system comprises a local video system, a local training system and a sound console;
the audio output of the local video system is connected to a first audio channel of the sound mixing console, and the first channel of the sound mixing console is connected to the input end of the local video system;
the audio output of the local training system is connected to a second audio channel of the sound console, and the second channel of the sound console is communicated with the input end of the local training system;
the audio acquisition devices of the local video system and the local training system are microphones with echo eliminating function;
the first audio channel and the first channel are used for inputting and outputting audio of a local video system, and in order to avoid loop generation, sound input of the first channel of the first audio channel of the sound mixing console is closed; similarly, the second audio channel and the second channel are used for inputting and outputting audio of the local training system, and in order to avoid loop generation, sound input of the second channel of the second audio channel of the sound mixing console is closed.
2. The video conference system with echo prevention function as claimed in claim 1, wherein the local video system is a baoyiton video conference system, and the local training system is an gaoyu training system.
3. The video conferencing system with echo prevention function as claimed in claim 1, wherein the voice output device of the baoyutong video conferencing system is a speaker.
4. The video conferencing system with echo prevention function as claimed in claim 1, wherein a plurality of sets of the local conferencing systems are connected via a network.
5. The video conferencing system with echo prevention function as claimed in claim 1, wherein the echo cancellation microphone has a noise reduction function.
6. The video conferencing system with echo prevention function of claim 1, wherein the local conferencing system comprises a plurality of telephone devices.
7. The system of claim 6, wherein a first operational amplifier is connected to the interface of the telephone device, and a second operational amplifier is connected to the interface of the telephone device.
8. The video conferencing system with echo prevention function according to claim 7, wherein the interface for connecting a telephone set is connected to the local telephone device.
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| CN202011260059.6A CN112532910A (en) | 2020-11-12 | 2020-11-12 | Video conference system with echo prevention function |
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| CN202011260059.6A CN112532910A (en) | 2020-11-12 | 2020-11-12 | Video conference system with echo prevention function |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167379Y (en) * | 2008-03-20 | 2008-12-17 | 上海华平信息技术股份有限公司 | Videoconference system and echo eliminating apparatus for the same |
| CN106851173A (en) * | 2015-12-07 | 2017-06-13 | 北京航天长峰科技工业集团有限公司 | A kind of multipart video-meeting network system realization of across a network |
| WO2019163702A1 (en) * | 2018-02-26 | 2019-08-29 | ヤマハ株式会社 | Audio signal input/output device, acoustic system, audio signal input/output method, and program |
| CN110235428A (en) * | 2017-02-02 | 2019-09-13 | 伯斯有限公司 | Meeting room audio setting |
-
2020
- 2020-11-12 CN CN202011260059.6A patent/CN112532910A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167379Y (en) * | 2008-03-20 | 2008-12-17 | 上海华平信息技术股份有限公司 | Videoconference system and echo eliminating apparatus for the same |
| CN106851173A (en) * | 2015-12-07 | 2017-06-13 | 北京航天长峰科技工业集团有限公司 | A kind of multipart video-meeting network system realization of across a network |
| CN110235428A (en) * | 2017-02-02 | 2019-09-13 | 伯斯有限公司 | Meeting room audio setting |
| WO2019163702A1 (en) * | 2018-02-26 | 2019-08-29 | ヤマハ株式会社 | Audio signal input/output device, acoustic system, audio signal input/output method, and program |
Non-Patent Citations (1)
| Title |
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| 中德科技: "视频频会议系统中调音台设置与调节", 《WWW.90282.CN/1/NEWS/SHOWNEWS-5.HTML?LANG=CN&ID=59》 * |
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