Distributed type tone mixing system in multimedia conference

A multimedia conferencing and distributed technology, which is applied in the branch office to provide special service devices, data exchange details, sounding equipment, etc., and can solve problems such as low mixing efficiency, inability to switch microphones smoothly, and prolonged encoding and decoding of voice data streams, etc.

Inactive Publication Date: 2008-08-27
杭州红杉赛联通讯技术有限公司
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Problems solved by technology

The shortcoming of this method is: (1), the Central Processing Unit (Central Processing Unit, CPU) load of server end is bigge

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  • Distributed type tone mixing system in multimedia conference
  • Distributed type tone mixing system in multimedia conference
  • Distributed type tone mixing system in multimedia conference

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings.

[0050] refer to Figure 1 to Figure 4 A distributed sound mixing system in a multimedia conference, the sound mixing system includes a main voice server, a voice sub-server, and a client. The client is connected to the voice sub-server, and the voice sub-server is connected to the voice main server.

[0051]The client includes: a voice collection module, used to transmit audio data streams during the conversation when the participants speak; a voice sending module, used to package the audio data streams collected by the transport protocol to send voice frames to voice sub-server;

[0052] The main voice server and the voice sub-server are a tree-shaped network; the client also includes: a signal energy calculation module, which is used to calculate the signal energy E after the audio data stream is collected, and the current audio data stream The energy E of the fram...

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Abstract

The invention relates to a distributing type sound-mixing system used in multimedia conferences. The sound-mixing system comprises a voice main server, a voice sub-server and a client end, wherein, the client end is connected with the voice sub-server, the voice sub-server is connected with the voice main server, and the client end comprises a voice collecting module used for transmitting the audio data stream formed during the conversation when talking with conference attendants; a voice sending module used for sending the collected audio data stream to the voice sub-server through real-time transmission protocol in the way of packaging the voice frame; a signal energy calculating module used for calculate the signal energy E after collecting the audio data stream; the voice main server and the voice sub-server used for networks presenting an arborescence shape; the voice main server realizes the final selecting algorithm, and the sub-voice server adopts the initial selecting algorithm. The invention provides a distributing type sound-mixing system which is used in multimedia conference and can reduce the CPU load of the server end and enhance the sound-mixing efficiency.

Description

technical field [0001] The invention relates to a distributed sound mixing system in a multimedia conference. Background technique [0002] Voice mixing is an important part of multimedia conference. The current mixing scheme adopts the traditional decoding-mixing-encoding mode. The shortcoming of this method is: (1), the Central Processing Unit (Central Processing Unit, CPU) load of server end is bigger; (2), sound mixing efficiency is low; The extension is long; (4), the participants' microphones cannot be switched smoothly. Contents of the invention [0003] In order to overcome the disadvantages of high CPU load and low mixing efficiency of the server side of the existing multimedia conference audio mixing system, the present invention provides a multimedia conference distributed audio system that can reduce the server CPU load and improve audio mixing efficiency. mixing system. [0004] The technical solution adopted by the present invention to solve its technical ...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04M3/56G10K15/08
Inventor 宋旭东杜武平
Owner 杭州红杉赛联通讯技术有限公司
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