近来,MP3已成为一个时髦名词。何为MP3?常见的VCD、SVCD及DVD是以MPEG—1和MPEG—2标准进行压缩的视听产品。而MPEG压缩分为音频和视频两部分,对于音频信号的压缩,MPEG提供了三层不同的编码模式,根据复杂性和性能的递增依次可分为Layer—1、Layer—2和Layer—3,其中Layer—3就是MP3。在MPEG的三层压缩方法中,因MP3压缩后的数据 Recently, MP3 has become a fashionable term. What is MP3? Common VCDs, SVCDs and DVDs are audiovisual products compressed in accordance with the MPEG-1 and MPEG-2 standards. The MPEG compression is divided into two parts of audio and video compression for audio signals, MPEG provides three different encoding modes, according to the increasing complexity and performance in turn can be divided into Layer-1, Layer-2 and Layer-3, Layer-3 is MP3. In the MPEG three-layer compression method, due to MP3 compressed data