TMS320VC5402 DSP를 이용한 G.723.1A 음성부호화기의 실시간 구현

Real-time Implementation of G.723.1A Speech Coder Using a TMS320VC5402 DSP

  • 이송찬 (강원대학교 전자공학과 대학원) ;
  • 정익주 (강원대학교 전기전자 정보통신공학부)
  • 발행 : 2003.06.01

초록

This paper describes the issues associated with the real-time implementation of G.723.1A dual-rate speech coder on a TMS320VC5402 DSP. Firstly, the main features of the G.723.1A speech coder and the procedure involved in the implementation using assembly and C languages are discussed. Various real-time implementation issues such as memory/MIPS tradeoffs are also presented. For fixed-point implementation, we converted the ITU-T fixed-point ANSI C code into TMS320VC5402 code in the bit-exact way through verification using the test vectors. Finally, as the result of implementation, we present the MIPS and memory requirement for the real-time operation.

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