Title :
Analysis and Application of Perceptual Weighting for Avs-M Audio Coder
Author :
Yang, Yuhong ; Hu, Ruimin ; Zhang Yong ; Zhang Wei
Author_Institution :
Key Lab. of Multimedia & Network Commun. Eng., Wuhan Univ., Wuhan
Abstract :
Audio video coding standard (AVS) is the latest audio and video coding standard of China. AVS Part 7 (also known as AVS-M) audio coding tools target mobility applications where perceptual weighting is of great importance for subjective performance. This paper first briefly introduces the general concept of perceptual weighting. Then a candidate perceptual weighting scheme is proposed and testified on AVS-M audio coder. Further optimization on the candidate is illustrated thereafter. Subjective results of the optimized scheme provide hybrid audio quality comparable to the 3 GPP AMR-WB+.
Keywords :
audio coding; 3GPP AMR-WB+; AVS audio-video coding standard; AVS-M audio coder; audio quality; mobility application; perceptual weighting; subjective performance; Audio coding; Bit rate; Code standards; Communication standards; Distortion measurement; Frequency; Noise shaping; Speech coding; Testing; Video coding;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.726
