可伸缩性音频编码

摘要

介绍了可伸缩性(Scalability)这一MPEG-4音频编码标准中非常重要的功能,对其在实际使用时的几种主要的方式作了讨论。%Scalability an important function in MPEG-4 audio coding standard is introduced in this paper. Discussion is made about some major forms in practical implementations.