摘要
基于利用人的听觉心理模型对音频信号进行压缩的原理 ,描述了MPEG音频压缩标准所采用的MU SICAM算法 ,并提出了MPEG Ⅱ实时编码系统中音频编码模块的实现方案 ,该方案利用手机CPU来完成音频编码的工作 ,既可充分利用系统资源 ,又可降低成本 .实践表明 ,该方案满足实时性、稳定性等方面的设计要求 .
Based on the principle of audio encoding by utilizing psychoacoustic model, the MUSICAM algorithm adopted by MPEG audio encoding protocol is introduced and the implementation scheme of audio encoding module in MPEG Ⅱ real time encoding system is presented. The scheme utilizes HOST CPU to complete audio encoding, which not only utilizes system resource well, but also reduces the cost. In application, this scheme meets the demand of real time and stability.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第8期29-31,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
