Architecture design of MDCT-based psychoacoustic model co-processor in MPEG advanced audio coding

Tsung Han Tsai; Shih Way Huang; Yi Wen Wang

Architecture design of MDCT-based psychoacoustic model co-processor in MPEG advanced audio coding

Tsung Han Tsai, Shih Way Huang, Yi Wen Wang

Department of Electrical Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

A novel architecture of MDCT-based Psychoacoustic Model (PAM) in an MPEG-2/4 Advanced Audio Coding (AAC) encoder is proposed. PAM, a very important role in AAC encoding, not only determines sound quality of a given encoder but also influences a lot in computational complexity. Our paper presents a dedicated hardware design, which is different from traditional programmable approaches. Moreover, to reduce the complexity, we replace the calculations of spreading function with reduced fixed coefficients, and decrease the transform kernels from three to two units.

Original language	English
Pages (from-to)	II761-II764
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2
State	Published - 2004
Event	2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada Duration: 23 May 2004 → 26 May 2004

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abstract = "A novel architecture of MDCT-based Psychoacoustic Model (PAM) in an MPEG-2/4 Advanced Audio Coding (AAC) encoder is proposed. PAM, a very important role in AAC encoding, not only determines sound quality of a given encoder but also influences a lot in computational complexity. Our paper presents a dedicated hardware design, which is different from traditional programmable approaches. Moreover, to reduce the complexity, we replace the calculations of spreading function with reduced fixed coefficients, and decrease the transform kernels from three to two units.",

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AB - A novel architecture of MDCT-based Psychoacoustic Model (PAM) in an MPEG-2/4 Advanced Audio Coding (AAC) encoder is proposed. PAM, a very important role in AAC encoding, not only determines sound quality of a given encoder but also influences a lot in computational complexity. Our paper presents a dedicated hardware design, which is different from traditional programmable approaches. Moreover, to reduce the complexity, we replace the calculations of spreading function with reduced fixed coefficients, and decrease the transform kernels from three to two units.

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Y2 - 23 May 2004 through 26 May 2004

ER -

Architecture design of MDCT-based psychoacoustic model co-processor in MPEG advanced audio coding

Abstract

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