An accelerated pshchoacoustic model chip design for MPEG 2/4 AAC audio

Tsung Han Tsai, Shih Way Huang, Yi Wen Wang

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper presents a new architecture design for MDCT-based PAM co-processor which is used in MPEG2/4 audio encoder. PAM is important tool. It determines quality of a given audio encoder 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 units. We also convert the calculation into the log number system (LNS). The multiplication and division in LNS is just add and sub respectively.

Original languageEnglish
Pages245-248
Number of pages4
StatePublished - 2005
Event9th IEEE International Workshop on Cellular Neural Networks and their Applications, CNNA - Hsinchu, Taiwan
Duration: 28 May 200530 May 2005

Conference

Conference9th IEEE International Workshop on Cellular Neural Networks and their Applications, CNNA
Country/TerritoryTaiwan
CityHsinchu
Period28/05/0530/05/05

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