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介绍了 ITU-T G.729语音压缩编码标准。结合最新的高速数字信号处理芯片 DSP，给出一个数字声码电话的实现实例。讨论了语音和信令的实时处理、浮点运算的定点实现及嵌入式多任务操作系统等关键技术。
Introduced the ITU-T G.729 voice compression coding standard. Combined with the latest high-speed digital signal processing chip DSP, gives a digital voice code implementation example. Discusses the real-time processing of voice and signaling, the fixed-point implementation of floating-point operations and embedded multi-tasking operating system and other key technologies.