Construction of a real-time music delivery system for IMT-2000 using twin VQ

Takeshi Mori*, Takao Kaneko, Naoki Iwakami, Takehiro Moriya, Kazunaga Ikeda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This paper describes the error-protected Twin VQ coding method, which can be applied to the IMT-2000 mobile communications system. A real-time music delivery system based on this method is reported. The Twin VQ coding method, which includes error detection and error suppression measures, is used to reduce the audio distortion of decoding resulting from the coding error of wireless transmission. Real-time encoding and decoding under the proposed method are also described. Computer simulations of IMT-2000 are used to evaluate the subjective quality of the delivered music. The possibility of a high-quality real-time music delivery system using IMT-2000 is demonstrated.

Original languageEnglish
Pages (from-to)102-110
Number of pages9
JournalSystems and Computers in Japan
Issue number10
Publication statusPublished - 2003 Sept
Externally publishedYes


  • IMT-2000
  • Music delivery
  • Real time
  • Twin VQ

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Hardware and Architecture
  • Computational Theory and Mathematics


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