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MPEG-2 AAC 5.1-Channel Decoder Software for a Low-Power Embedded RISC Microprocessor

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Abstract

Presented here is MPEG-2 AAC low complexity profile decoder software for a low-power embedded RISC microprocessor, NEC V830 (300 mW @133 MHz). Fast processing methods for IMDCT reduce execution time by 41% and help achieve real-time decoding of a 5.1-channel audio signal, while using only 64.7% of processor capacity.

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Authors and Affiliations

  1. NEC Corporation, 4-1-1, Miyazaki, Miyamae-ku, Kawasaki, Kanagawa, 216-8555, Japan

    Yuichiro Takamizawa, Kouhei Nadehara, Masao Ikekawa & Ichiro Kuroda

  2. Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland

    Max Boegli

Authors
  1. Yuichiro Takamizawa
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  2. Kouhei Nadehara
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  3. Max Boegli
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  4. Masao Ikekawa
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  5. Ichiro Kuroda
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Takamizawa, Y., Nadehara, K., Boegli, M. et al. MPEG-2 AAC 5.1-Channel Decoder Software for a Low-Power Embedded RISC Microprocessor. The Journal of VLSI Signal Processing-Systems for Signal, Image, and Video Technology 29, 247–254 (2001). https://doi.org/10.1023/A:1012239731371

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  • DOI: https://doi.org/10.1023/A:1012239731371

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