AUDIO TELECONFERENCING SET WITH MULTI-PATH ECHO CANCELLER.

Hiroshi Oikawa*, Nobuo Koizumi, Shoji Makino

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

An Audio Conferencing Set with an acoustic echo canceller has been developed which eliminates acoustic coupling and echo feedback, and allows fully open and life-like conversation. It is designed to be used with multiple microphone system containing gain switching. The echo canceller is provided with memories for multiple echo paths so that filter coefficients may be updated when echo path is switched due to a change of actuated microphone when speaker alternation occurs. Delay processing time of 0. 5 sec. for 7kHz band signal is achieved by using digital signal processor chips.

本文言語English
ページ(範囲)191-197
ページ数7
ジャーナルDenki Tsushin Kenkyujo kenkyu jitsuyoka hokoku
37
2
出版ステータスPublished - 1988
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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