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Introduction to AVS Audio

  • Special Section on China AVS Standard
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Abstract

This paper describes a general audio coding algorithm which has been recently standardized by AVS, China. The algorithm is based on a perceptual coding technique. The codec delivers near CD-quality audio at 128kb/s. This paper describes the coder structure in detail and discusses the reasons for specific design methods. A summary of the subjective test results are presented for the prototype codec. Comparison Mean Opinion Score (CMOS) test indicates that the quality of the AVS audio coder is comparable with MPEG Layer-3 audio coder. A real-time decoder was used for the characterization test, which is based on a 16-bit fixed-point DSP. The performance of the DSP solution was demonstrated, including computational complexity and storage characteristics.

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References

  1. AVS, Document N1096. Call for proposals on audio coding. Beijing, China, June 2004.

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  9. Texas Instrument. TMS320C55x DSP CPU Reference Guide. Literature Number: SPRU371F, Chapter 2, Feb. 2004.

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Authors and Affiliations

  1. National Engineering Research Center for Multimedia Software, Wuhan University, Wuhan, 430079, P.R. China

    Hao-Jun Ai, Shui-Xian Chen & Rui-Min Hu

  2. Hubei Multimedia Network Communication Engineering Laboratory, Wuhan University, Wuhan, 430079, P.R. China

    Hao-Jun Ai & Rui-Min Hu

  3. Computer School, Wuhan University, Wuhan, 430072, P.R. China

    Shui-Xian Chen & Rui-Min Hu

Authors
  1. Hao-Jun Ai
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  2. Shui-Xian Chen
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  3. Rui-Min Hu
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Corresponding author

Correspondence to Hao-Jun Ai.

Additional information

Supported by the National Natural Science Foundation of China under Grant No. 60472040 and the National High Technology Development 863 Program of China under Grant No. 2004AA119010.

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Ai, HJ., Chen, SX. & Hu, RM. Introduction to AVS Audio. J Comput Sci Technol 21, 360–365 (2006). https://doi.org/10.1007/s11390-006-0360-x

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  • DOI: https://doi.org/10.1007/s11390-006-0360-x

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