VLIW-aware software optimization of AAC decoder on parallel architecture core DSP (PACDSP) processor

Tsung Han Tsai, Chun Nan Liu, Jui Hong Hung

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Audio coding is indispensable in our life and MPEG AAC is one of the most popular audio coding standards. It has been widely used in variant applications. In this paper, we propose VLIW-aware software optimization techniques for the AAC decoding blocks on the parallel architecture core DSP (PACDSP) processor. This approach provides the flexibility for adding new extensions and solves two important issues, low power consumption and limited resources problems on DSP for portable devices. We change the traditional sequential algorithms into parallel processes and minimize the memory utilization of each block. The realized decoder can be operated at a lower frequency of only 15 MHz and needs only 27 Kbytes of program memory and 27 Kbytes of data memory.

Original languageEnglish
Pages (from-to)933-939
Number of pages7
JournalIEEE Transactions on Consumer Electronics
Volume54
Issue number2
DOIs
StatePublished - May 2008

Keywords

  • AAC decoder
  • PACDSP processor
  • Parallel processing
  • Software optimization

Fingerprint

Dive into the research topics of 'VLIW-aware software optimization of AAC decoder on parallel architecture core DSP (PACDSP) processor'. Together they form a unique fingerprint.

Cite this