Optimization of AVS audio decoder implemented on RISC core

B. Y. Lei, Kwok Tung Lo, Haijun Lei

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper proposes the software optimization for implementing AVS-P3 realtime on ARM 9. The optimization for embedded systems has been recognized as a key issue in improving cost as well as performance. In this work, we describe our experience in optimizing AVS audio decoder based on ARM9. We mainly optimize the inversed IntMDCT, CBC and dequantization modules. The test result shows that the decoding speed improves 10 times than the original AVS audio decoder decoding stereo wave signal with the 128khps bitrate and 48 KHz sampling rate. Meanwhile, the memory space is reduced from 130.78KB to 59.91KB, achieved 54.2% improvement.
Original languageEnglish
Title of host publicationProceedings of the 2008 International Conference on Computer and Electrical Engineering, ICCEE 2008
Pages32-35
Number of pages4
DOIs
Publication statusPublished - 1 Dec 2008
Event2008 International Conference on Computer and Electrical Engineering, ICCEE 2008 - Phuket, Thailand
Duration: 20 Dec 200822 Dec 2008

Conference

Conference2008 International Conference on Computer and Electrical Engineering, ICCEE 2008
CountryThailand
CityPhuket
Period20/12/0822/12/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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