A real-time IMT-2000 audio transmission system

Takeshi Mori, Takao Kaneko, Takehiro Moriya, Kazunaga Ikeda

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

For real-time audio streaming services over next-generation mobile phone systems, such as live concert broadcasting and radio relaying, we have developed a real-time IMT-2000 audio transmission system. This system consists of a real-time encoder and a portable real-time decoder, which are both based on fixed-point DSP chips. TwinVQ technology is used for audio compression, and a scheme to protect audio data against bit-errors was designed based on error sensitivity observations. Self-synchronization and adaptive error concealment are carried out at the decoder. We confirmed that the system can transmit high-quality stereo audio samples at 32 kHz with a total bit rate of 64 kbit/s over a simulated IMT-2000 channel. We also checked that this system can connect to a real IMT-2000 experimental network, and found that it is easily applicable to various audio streaming services.

Original languageEnglish
Pages (from-to)858-864
Number of pages7
JournalIEEE Transactions on Consumer Electronics
Volume47
Issue number4
Publication statusPublished - 2001 Nov
Externally publishedYes

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Audio streaming
Digital signal processors
Broadcasting
Mobile phones
Synchronization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

A real-time IMT-2000 audio transmission system. / Mori, Takeshi; Kaneko, Takao; Moriya, Takehiro; Ikeda, Kazunaga.

In: IEEE Transactions on Consumer Electronics, Vol. 47, No. 4, 11.2001, p. 858-864.

Research output: Contribution to journalArticle

Mori, T, Kaneko, T, Moriya, T & Ikeda, K 2001, 'A real-time IMT-2000 audio transmission system', IEEE Transactions on Consumer Electronics, vol. 47, no. 4, pp. 858-864.
Mori, Takeshi ; Kaneko, Takao ; Moriya, Takehiro ; Ikeda, Kazunaga. / A real-time IMT-2000 audio transmission system. In: IEEE Transactions on Consumer Electronics. 2001 ; Vol. 47, No. 4. pp. 858-864.
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