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

Tsung Han Tsai, Shih Way Huang, Yi Wen Wang

Research output: Contribution to journalConference articlepeer-review

1 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 languageEnglish
Pages (from-to)II761-II764
JournalProceedings - IEEE International Symposium on Circuits and Systems
Volume2
StatePublished - 2004
Event2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada
Duration: 23 May 200426 May 2004

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