语音采集压缩存储与回放程序，采用alaw对采集的数据进行压缩，对芯片的存储空间进行了扩展 采用外部FLASH芯片作为外部存储器 ，采用ulaw对存储的数据进行解压，采用AD50芯片实现对信号的AD/DA转换 ，利用DSK320VC5402板实现整个设计，用板上的3个LED来指示录放音状态 ， LED0：录音，LED1：放音-Storage and playback of audio capture and compression program, using alaw compression of the data collected on-chip memory space is extended with external FLASH chip as the external memory, using ulaw decompression of stored data, using the signal chip AD50 AD/DA conversion, the whole design implementation using DSK320VC5402 board, with the board' s three status LED to indicate the sound recording, LED0: recording, LED1: playback