Analysis and Application of Perceptual Weighting for Avs-M Audio Coder

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 con...

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Bibliographic Details
Main Authors: Yang Yuhong, Hu Ruimin, Zhang Yong, Zhang Wei
Format: Conference Proceeding
Language:English
Subjects:
Audio coding
Bit rate
Code standards
Communication standards
Distortion measurement
Frequency
Noise shaping
Speech coding
Testing
Video coding
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Summary: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+.
ISSN:2161-9646
DOI:10.1109/WICOM.2007.726