语音信号的A率（或u率）压缩算法1.本试验要求完成的内容是使用AD将外部语音信号采集，DSP对语音信号保存处理，经过DA将处理后的语音信号输出；DSP对语音信号的处理包括A律和 律压缩解压、声音信号的音效处理等。-A rate of voice signals (or u rate) compression algorithm 1. The complete contents of the test requirements is the use of AD to an external audio signal acquisition, DSP save the speech signal processing, through the DA will be processed voice signal output　DSP of the voice signal treatment, including law and law A compression decompression, audio processing sound signals.