摘要
对MPEG - 2层Ⅱ音频实时压缩编码过程进行了分析 ;对影响编码速度的主要算法———子带分析滤波算法和心理声学模型计算作了优化 ;最后结合TMS32 0C31应用系统资源 。
The process of a real-time compression code on MPEG-2 audio layer 2 is analyzed. Two algorithms like the Sub-Band Analysis Method and the psychological Acoustics Model Calculation, which mainly affect the coding speed, are optimized. Implementation flows of these algorithms are presented according to the resources of a TMS320C31 application system.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2002年第3期63-65,73,共4页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
湖北省重点科技攻关资助项目 (2 0 0 0 2P0 12 4)
关键词
MPEG-2
子带分析滤波
心理声学模型
MPEG-2
sub-band analysis filtration
a psychological acoustic model
