TY - JOUR
T1 - AN MDCT-BASED PSYCHOACOUSTIC MODEL CO-PROCESSOR DESIGN FOR MPEG-2/4 AAC AUDIO ENCODER
AU - Tsai, Tsung Han
AU - Wang, Yi Wen
AU - Huang, Shih Way
N1 - Publisher Copyright:
© 2004 Proceedings of the International Conference on Digital Audio Effects, DAFx. All rights reserved.
PY - 2004
Y1 - 2004
N2 - The Psychoacoustic Model (PAM) is a very important role in MPEG-2/4 Advanced Audio Coding (AAC) encoding. It determines sound quality of a given encoder and influences a lot in computational complexity. This paper presents a new architecture design for MDCT-based PAM co-processor. This work is based on the 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 one unit.
AB - The Psychoacoustic Model (PAM) is a very important role in MPEG-2/4 Advanced Audio Coding (AAC) encoding. It determines sound quality of a given encoder and influences a lot in computational complexity. This paper presents a new architecture design for MDCT-based PAM co-processor. This work is based on the 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 one unit.
UR - http://www.scopus.com/inward/record.url?scp=70449351485&partnerID=8YFLogxK
M3 - 會議論文
AN - SCOPUS:70449351485
SN - 2413-6700
SP - 335
EP - 338
JO - Proceedings of the International Conference on Digital Audio Effects, DAFx
JF - Proceedings of the International Conference on Digital Audio Effects, DAFx
T2 - 7th International Conference on Digital Audio Effects, DAFx 2004
Y2 - 5 October 2004 through 8 October 2004
ER -