Abstract: With the development of the digital technology such as code, decode and compress, CMF(Creative Music File) has experienced the format of MP1, MP2 and now are edited into MP3.

• 摘要: 随着数字编解码及压缩技术的发展，语音文件也朝着高压缩比、高保真的方向发展，从MP1、MP2到目前的MP3格式。