Research on fast real-time adaptive audio mixing in multimedia conference

被引：6

作者：

Fan X. ^{[1
]}

Gu W.-K. ^{[1
]}

Ye X.-Q. ^{[1
]}

机构：

[1] Department of Information and Electronic Engineering, Zhejiang University

来源：

Journal of Zhejiang University-SCIENCE A | 2005年 / 6卷 / 6期

关键词：

Adaptive; Aligned-to-energy; Aligned-to-self; Audio mixing; MCU; Multimedia conference; Real-time;

D O I：

10.1631/jzus.2005.A0507

中图分类号：

学科分类号：

摘要：

In multimedia conference, the capability of audio processing is basic and requires more for real-time criteria. In this article, we categorize and analyze the schemes, and provide several multipoint speech audio mixing schemes using weighted algorithm, which meet the demand of practical needs for real-time multipoint speech mixing, for which the ASW and AEW schemes are especially recommended. Applying the adaptive algorithms, the high-performance schemes we provide do not use the saturation operation widely used in multimedia processing. Therefore, no additional noise will be added to the output. The above adaptive algorithms have relatively low computational complexity and good hearing perceptibility. The schemes are designed for parallel processing, and can be easily implemented with hardware, such as DSPs, and widely applied in multimedia conference systems.

引用

页码：507 / 512

页数：5

共 7 条

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