摘要
MPEG-2AAC是ISO/IEC MPEG组织继 MPEG-1、MPEG-2音频编解码标准后,制定 的最新国际标准(ISO/IEC 13818-7),在64kbps/每声道低码率时能提供全透明音质。本文对其编 解码算法进行了简要介绍。论文作者对MPEG-2AAC进行了软件仿真,文中介绍了仿真结果,仿 真时对AAC标准所附编码范例中的一些不妥之处,作了改进,文中列举了6方面的修正。
The MPEG-2 Advanced audio coding(AAC)was the newest standard(ISO/IEC. 13818-7) designed by ISO/IEC MPEG in audio coding. The AAC can deliver” 'indistinguishable' audio quality at 64kbps/channel data rate. The main features of the AAC system are described briefly. The simulation result of the AAC is presented and an improved scheme on six aspects is proposed.
出处
《应用声学》
CSCD
北大核心
1999年第5期19-23,共5页
Journal of Applied Acoustics