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选择AD73311模数/数模转换器和基于AMBE语音压缩算法的一款较新的声码器AMBE-2000作为核心部件,设计一种语音编解码模块.实现了模数/数模转换,以使其能够在2.0~2.4 kbps的低比特速率情况下产生比较好的话音质量.
The AD73311 A / D converter and AMBE-2000, a new vocoder based on the AMBE speech compression algorithm, are selected as the core components to design a speech codec module to realize the A / D conversion It produces better voice quality at low bit rates of 2.0-2.4 kbps.