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Variable Rate Vocoder and its Property Analysis
Author(s): 
Pages: 18-21
Year: Issue:  8
Journal: APPLIED SCIENCE AND TECHNOLOGY

Keyword:  语音编码声码器波形编码;
Abstract: 主要介绍Q4401可变速率声码器的工作原理和各种功能,PCM接口和CPU接口、初始化过程及命令格式等,并设计了一种典型的应用实例.实验证明该声码器将语音信号压缩至4~9.6 kbit/s范围时,可达到普通电话的通话效果.
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