基于DSP技术模数兼容的多通道数字电话系统设计方案。设计中采用了DSP，低比特率语音压缩编解码，信道复用，FLASH MEMORY，DSP和调制解调器通信等技术。在通用调制解调器构成的点对点通信平台上实现了两路语音的复用，传输及交换。-Modulus based on DSP technology compatible multi-channel digital telephone system design. Designed to use a DSP, low bit rate voice

基于dsp的多功能的，自动收集语音录放系统-Dsp-based multi-functional, automated voice recording system to collect

实现语音信号的采集与播放，利用DMA中断进行AD转换，以及数据的采集，多通道缓冲同步串口程序-Voice signal acquisition and playback, using DMA interrupt AD conversion, as well as data acquisition, multi-channel synchronous serial buffer program