基于DSP的数字语音录放系统

The Digital Speech System of Recording and Playing Based on DSP

介绍了一种基于ADSP 2181DSP芯片并应用ITU TG.723 1标准进行语音编解码的数字语音录放系统,给出了实现方案,介绍了各功能模块的工作原理。该系统以ADSP 2181DSP芯片为核心,配合其他功能模块来实现数字语音录放,并介绍了ITU TG.723 1标准算法原理,该系统能很好地应用在多种需要数字语音录放系统中。

A digital speech record and play system based on ADSP-2181 DSP chip and ITU-TG.723.1 code and decode standard is introduced, and the implementation scheme is offered. Operation principle of every function module is introduced. As the core module of the system, ADSP-2181 DSP chip cooperates with other function modules to attain digital speech record and play purpose. The principle of the ITU-TG.723.1 standard arithmetic is also introduced. This system can be used in any system to meet the digital speech record and play requirement.