DocumentCode :
3498594
Title :
A Window Switching Algorithm for AVS Audio Coding
Author :
Chen Shuixian ; Ai Haojun ; Hu Ruimin ; Deng Guiping
Author_Institution :
Key Lab. of Multimedia & Network Commun. Eng., Wuhan Univ., Wuhan
fYear :
2007
fDate :
21-25 Sept. 2007
Firstpage :
2889
Lastpage :
2892
Abstract :
In this paper, we present a window switching algorithm employed in AVS (audio video coding standard of China) generic audio coding. The algorithm - energy and unpredictability measure based window switching decision (ENUPM-WSD) - achieves high performance to complexity ratio by taking the advantages of both the low complexity of energy based decision in time domain and the high accuracy of unpredictability based decision in frequency domain. It significantly improves encoded audio quality, especially those with large transient portions, while preserves low average computational complexity in AVS generic audio encoder. Due to the merits, it is accepted as a recommendation module of the AVS audio standard.
Keywords :
audio coding; AVS audio coding; Energy and Unpredictability Measure based Window Switching Decision; window switching algorithm; Acoustic noise; Audio coding; Communication switching; Encoding; Energy measurement; Frequency domain analysis; Power engineering and energy; Signal processing algorithms; Signal resolution; Software algorithms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
Type :
conf
DOI :
10.1109/WICOM.2007.717
Filename :
4340492
Link To Document :
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