G.723.1算法在DSP上的优化

The optimization of G.723.1 Algorithm Using DSP

在ITU-T的G.723.1语音编解码算法基础上,本文详细介绍了该算法在定点C语言程序和全汇编程序实现时的关键技术和优化策略,使优化后的G.723.1编码器在内存占用率和运算复杂度方面都达到了预期目标,语音信号经编码器编码解码之后失真很小。

Based on the G.723.1 Speech Codec Algoritbm, this paper describes emphasis in the optimized strategy and key technology of designing with fixed-point C language and assembly program. After the optimization the performance of G.723.1 encoder have met with the expectation in data storage and operational complexity. The distortion of the decoded speech is rather small.