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Method, equipment and system for processing signal of 3D audio conference

An audio conferencing and signal processing technology, which is applied in the signal processing field of 3D audio conferencing, can solve the problems of inability to freely locate the position of the audio and image, and the need for multiple transmission channels.

Active Publication Date: 2014-07-30
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a signal processing method, server, terminal and system for a 3D audio conference, to solve the problem that there are too many transmission channels in the prior art, and the terminal cannot freely locate the audio and video positions of other terminals

Method used

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  • Method, equipment and system for processing signal of 3D audio conference
  • Method, equipment and system for processing signal of 3D audio conference
  • Method, equipment and system for processing signal of 3D audio conference

Examples

Experimental program
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Embodiment 1

[0055]Method embodiment 1 of the present invention can be through image 3 Be explained

[0056] 301. Obtain an audio stream relative to the terminal for a terminal;

[0057] In implementation 301, the acquiring the audio stream relative to the terminal for a terminal is specifically: acquiring the energy of multiple audio streams relative to the terminal; selecting the energy according to the acquired energy of the multiple audio streams The largest at least one audio stream; assign an identifier to the selected audio stream.

[0058] It can be understood that obtaining several audio streams with the highest energy for a terminal is only one implementation method, and all audio streams can also be obtained. The implementation method does not need to calculate the energy, and directly obtains related audio streams.

[0059] 302. Assign an identifier to the acquired audio stream relative to the terminal;

[0060] In implementation 302, the identifier assigned to the audio st...

Embodiment 2

[0071] Embodiment 2 of the method of the present invention is mainly described for the embodiment of the case of a single server. Figure 4 The flow chart drawn to illustrate

[0072] 401. The server acquires the audio stream corresponding to each terminal;

[0073] In implementation 401, each terminal generally corresponds to each conference site, the corresponding terminal obtains the audio stream of the corresponding conference site, and the server corresponding to each terminal obtains the audio stream corresponding to each terminal.

[0074] 402. Calculate the energy of the acquired audio stream, and select at least one audio stream with the highest energy;

[0075] When implementing 402, the server calculates the energy of the audio streams corresponding to each terminal obtained in 401, and selects at least one audio stream with the highest energy as the final selected audio stream according to the result of the energy calculation;

[0076] Among them, in the process ...

Embodiment 3

[0100] Embodiment 3 of the method of the present invention is mainly described for the embodiment of the case where multiple servers are cascaded, and its structure can be obtained by Figure 6 to illustrate

[0101] exist Figure 6 , we can see that there are three servers and four terminals in total, among which terminal 1 and terminal 2 belong to server 2, terminal 3 and terminal 4 belong to server 3, and server 2 and server 3 are cascaded together through server 1. Among them, Server 1 can be regarded as the master server, and server 2 and server 3 can be regarded as the slave servers of server 1.

[0102] For the case where multiple servers are cascaded, the process is as follows, refer to Figure 7 The flow chart:

[0103] 701. The main server obtains the audio stream uploaded from the server;

[0104] 702. The master server decomposes the audio stream obtained from the slave server into multiple audio streams, and the number of decomposed audio streams is the number...

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Abstract

The embodiment of the invention provides a method, a system and equipment for processing a signal of a 3D audio conference. The method comprises the following steps: aiming at a terminal to obtain audio streams relative to the terminal; matching marks for the obtained audio streams relative to the terminal; and combining the obtained audio streams relative to the terminal and the marks corresponding to the obtained audio streams and transmitting the obtained audio streams and the marks to the terminal. The invention can solve the problems that demands of transmission passages are excessive, and the terminal can not freely position acoustic image positions of other terminals in the prior art.

Description

technical field [0001] The present invention relates to the field of audio processing, in particular to a signal processing method, device and system for a 3D audio conference. Background technique [0002] Audio conferencing systems are becoming more and more widely used in conferences. The current audio conferencing systems are usually monophonic or dual-channel, lacking a sense of spatial presence, and in multi-point conferences, various sounds are mixed together. , resulting in a decrease in sound clarity. [0003] In the prior art, 3D sound processing is used to process the audio streams in the audio conference, that is, through the audio image positions assigned to each audio stream, and according to the positional relationship of the audio streams at each audio image position, the audio streams are adjusted between left and right. The size of the gain of the channel, and then create a three-dimensional sound effect. [0004] In the networking of 3D audio conferencin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04M3/56H04L29/06H04S3/00
Inventor 詹五洲王东琦
Owner HUAWEI DEVICE CO LTD
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