低比特率视频电话会议的音频压缩和回波消除

Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1900-01-01 DOI:10.1109/ASPAA.1991.634116

P. Chu

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引用次数: 0

摘要

在低比特率视频电话会议(每秒56到128千比特)中，音频压缩和回声消除的限制在许多重要方面与纯音频电话会议不同。为纯音频通信而优化的算法可以得到显著改进或需要显著改进。在这次演讲中，音频需求将被提出，我们将用磁带演示PictureTel如何在他们最新的商业产品中解决这些问题。下面是这次谈话的摘要。

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Audio Compression and Echo Cancellation for Low Bit Rate VideoTeleconferencing

The constraints for audio compression and echo cancellation in low bit rate videoteleconferencing (56 to 128 thousand bits per second) difeer in many important respects from audio-only teleconferencing. Algorithms which have been optimized for audio-only communications may be improved significantly or require significant improvement. In this talk, audio requirements will be presented, and we shall demonstrate with a tape how PictureTel has addressed these problems in their latest commercial product. A summary of the talk follows.

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Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics

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