Acoustic feedback canceller for the three-dimensional sound field simulator using a "Sound Cask"

Syunya Kohno, Hisato Yoshida, Yusuke Ikeda, Yuko Watanabe, Shiro Ise

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We have developed a three-dimensional sound reproduction system based on the boundary-surface control principle. "Sound Cask" comprises a 96-channel loudspeaker system to reproduce the sound field. It has a space large enough to allow a small musical instrument such as a violin to be played. Using Sound Cask, we aim to construct a three-dimensional sound-field simulator. Furthermore, we also propose a sound-field-sharing system that enables telecommunication as if we were in the same place. However, acoustic feedback occurring in the system owing to the presence of microphones causes an echo and a degradation of simulated reverberation characteristics. In this study, we aim to suppress the acoustic feedback by applying additional control points called "null spaces" at the positions of the microphones.

Original languageEnglish
Title of host publicationProceedings of Forum Acusticum
PublisherEuropean Acoustics Association, EAA
ISBN (Print)9788361402282
Publication statusPublished - 2014
Externally publishedYes
Event7th Forum Acusticum, FA 2014 - Krakow, Poland
Duration: 2014 Sept 72014 Sept 12


Other7th Forum Acusticum, FA 2014

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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