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Distributed audio mixing method for conference call

A teleconferencing and distributed technology, applied in the direction of telephone communication, electrical components, automatic switching offices, etc., can solve the problems of high terminal capability requirements and occupation of network bandwidth, etc.

Active Publication Date: 2018-10-26
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Distributed mixing does not require a mixing server, but it has higher requirements for terminal capabilities and takes up more network bandwidth

Method used

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  • Distributed audio mixing method for conference call
  • Distributed audio mixing method for conference call

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Embodiment

[0040] Assuming that there are 10 conference terminals holding a conference call, the conference terminals are numbered A, B, C, D, E, F, G, H, I, J respectively, where A is the conference host, and A, B, and C are located in the same network segment , other conference endpoints are located in another network segment.

[0041] After the conference is established, all conference terminals send conference status messages within the network segment at a period of 1 second. Conference terminals A, B, and C are located in group 1 according to the network segment, and the conference moderator A is selected as the audio mixing agent through the conference status message; conference terminals D, E, F, G, H, I, and J are located in group 2 according to the network segment , and select the conference terminal H as the audio mixing agent through the conference status message. Each conference terminal has the same sound mixing capability, and can simultaneously mix 5 voice channels, that...

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Abstract

The invention discloses a distributed audio mixing method for a conference call, which comprises the following steps: first, the terminals participating in the conference are grouped according to a network segment; one terminal is selected in each group as an audio mixing agent, which is in charge of audio mixing processing of the group; secondly, the group in which a conference host terminal is located is as a central group, which is in charge of secondary audio mixing of the mixing results of the groups; finally, when the number of voice channels exceeds the audio mixing capability of the terminal, the terminal sorts each channel of voice according to the energy of a voice signal, and multiple channels of voices are selected for audio mixing processing in an order from large to small. The distributed audio mixing method for a conference call in the invention does not need to deploy a high-performance audio mixing server; the audio mixing agent in each group is automatically generatedby the election algorithm; and normal audio mixing can be performed in the case of a mixing agent failure and overmany audio mixing channels.

Description

technical field [0001] The invention belongs to the field of multimedia communication, and in particular relates to a distributed sound mixing method for a conference call. Background technique [0002] As a typical representative of real-time multimedia communication services, teleconferencing systems have developed rapidly in recent years with the popularization of networks. In a conference call, it includes a host terminal and several member terminals. The host terminal is responsible for initiating a conference call, monitoring the conference status, controlling the conference member terminals to withdraw from the conference call, inviting other terminals to join the conference call, and specifying whether the member terminals With permission to speak, etc. [0003] When multiple terminals speak at the same time in a teleconference, the centralized audio mixing or distributed audio mixing is usually used to mix the multiple voices, so that each terminal can hear the voi...

Claims

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Application Information

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IPC IPC(8): H04M3/56H04M7/00H04L29/06
CPCH04L65/1083H04M3/568H04M7/0066
Inventor 赵曙光李凯朱海鸿鲁梁梁
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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