本程序的压缩编码是G.729的编解码程序，其的算法是基于CS-ACELP的算法基础上的编码。用在语音通信中，例如手机中-This program s arithmetic is base on ITU G.729 Speech Vocoder, which is a CS-ACELP compressing coder, usually use in speech comunication, such as mobile phone.