The speech quality produced by G. 729A is equivalent to that of 32kbits/s ADPCM for most operating conditions, achieving the request of long-distance telephone.

• 729A具有非常好的性能,其语音质量与32kbit/s自适应差分脉冲编码调制(ADPCM)算法相当,达到了长途电话质量要求。