On the Pre-echo Control Method in Transient Signal Coding of AVS Audio
The Audio and Video coding Standard of China(AVS) uses Multi-Resolution Analysis of Frequency Domain (MRAFD) to control pre-echo when coding transient signal. However, this technology complicates the implementation of encoder as well as decoders with more operation and higher computational precision. In this paper, a kind of gain control of time domain is used to encode transient signal instead of MRAFD. Compared with MRAFD, the new method greatly decreases the computational complexity of AVS audio encoder and decoder while the coding quality of the two methods is almost the same.
Tao Zhang Wei Wang Jialin He
School of Electronic and Information Engineering, Tianjin University
国际会议
2008 International Conference on Audio，Language and Image Processing(2008国际声音、语言、图像过程大会)
镇江
英文
242-246
2008-07-07（万方平台首次上网日期，不代表论文的发表时间）