一种有效的时域语音压缩技术及其在TMS320C5416数字信号处理器上的硬件实现

2007 International Conference on Signal Processing, Communications and Networking Pub Date : 2007-11-05 DOI:10.1109/ICSCN.2007.350674

A. Sanyal, S. Das, P. Venkateswaran, S. K. Sanyal, R. Nandi

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引用次数: 0

摘要

语音压缩在现代通信中具有至关重要的意义，在现代通信中，带宽保护是适应不断增加的通信信道数量所必需的。从历史上看，LPC(线性预测编码)用于语音分析以获得更好的结果，子带编码用于音频压缩方法，如MPEG标准。在本文中，我们将残留激发线性预测(RELP)技术与子带编码相结合，以产生高达85%的压缩率和可接受的失真水平

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An Efficient Time Domain Speech Compression Technique and Hardware Implementation on TMS320C5416 Digital Signal Processor

Speech compression is of paramount importance in modern day communications where bandwidth conservation is necessary to accommodate the ever increasing number of communication channels. Historically, LPC (linear predictive coding) is used for speech analysis for better results, and subband coding is used in audio compression methods, such as MPEG standards. In this paper, we combine a RELP (residual excited linear prediction) technique with subband coding to yield compression rates of upto 85% with acceptable distortion levels

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2007 International Conference on Signal Processing, Communications and Networking

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