Design of a low power psycho-acoustic model co-processor for MPEG-2/4 AAC LC stereo encoder

Tsung Han Tsai; Shih Way Huang; Liang Gee Chen

Design of a low power psycho-acoustic model co-processor for MPEG-2/4 AAC LC stereo encoder

Tsung Han Tsai, Shih Way Huang, Liang Gee Chen

Department of Electrical Engineering

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

9 Scopus citations

Abstract

A new design of Psycho-Acoustic Model in MPEG-2/4 AAC encoding is proposed. Differing from the conventional PC-based and DSP-based encoders, it was based on hybrid architectures. It was optimized at algorithmic and at architectural levels. At algorithmic level, MDCT-based PAM and fixed-coefficients were used to replace the original FFT-based PAM and spreading functions. At architectural level, the co-processor PAM design is proposed. The proposed design could be used in a real-time MPEG-2/4 AAC LC stereo encoder while maintaining CD quality below 30 MHz.

Original language	English
Pages (from-to)	II552-II555
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2
State	Published - 2003
Event	Proceedings of the 2003 IEEE International Symposium on Circuits and Systems - Bangkok, Thailand Duration: 25 May 2003 → 28 May 2003

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abstract = "A new design of Psycho-Acoustic Model in MPEG-2/4 AAC encoding is proposed. Differing from the conventional PC-based and DSP-based encoders, it was based on hybrid architectures. It was optimized at algorithmic and at architectural levels. At algorithmic level, MDCT-based PAM and fixed-coefficients were used to replace the original FFT-based PAM and spreading functions. At architectural level, the co-processor PAM design is proposed. The proposed design could be used in a real-time MPEG-2/4 AAC LC stereo encoder while maintaining CD quality below 30 MHz.",

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AU - Tsai, Tsung Han

AU - Huang, Shih Way

AU - Chen, Liang Gee

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N2 - A new design of Psycho-Acoustic Model in MPEG-2/4 AAC encoding is proposed. Differing from the conventional PC-based and DSP-based encoders, it was based on hybrid architectures. It was optimized at algorithmic and at architectural levels. At algorithmic level, MDCT-based PAM and fixed-coefficients were used to replace the original FFT-based PAM and spreading functions. At architectural level, the co-processor PAM design is proposed. The proposed design could be used in a real-time MPEG-2/4 AAC LC stereo encoder while maintaining CD quality below 30 MHz.

AB - A new design of Psycho-Acoustic Model in MPEG-2/4 AAC encoding is proposed. Differing from the conventional PC-based and DSP-based encoders, it was based on hybrid architectures. It was optimized at algorithmic and at architectural levels. At algorithmic level, MDCT-based PAM and fixed-coefficients were used to replace the original FFT-based PAM and spreading functions. At architectural level, the co-processor PAM design is proposed. The proposed design could be used in a real-time MPEG-2/4 AAC LC stereo encoder while maintaining CD quality below 30 MHz.

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M3 - 會議論文

AN - SCOPUS:0038760036

SN - 0271-4310

VL - 2

SP - II552-II555

JO - Proceedings - IEEE International Symposium on Circuits and Systems

JF - Proceedings - IEEE International Symposium on Circuits and Systems

T2 - Proceedings of the 2003 IEEE International Symposium on Circuits and Systems

Y2 - 25 May 2003 through 28 May 2003

ER -

Design of a low power psycho-acoustic model co-processor for MPEG-2/4 AAC LC stereo encoder

Abstract

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