介绍了MPEG2标准的分层选择原则、音频压缩及编码过程；分析了MPEG2音频增强功能；提出了在芯片上实现MPEG2音频编码的解决方案。-MPEG2 standard describes the principles of hierarchical selection, audio compression and encoding process analyzed MPEG2 audio enhancements made in chip MPEG2 audio encoding soluti