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SOUND COLLECTION/REPRODUCTION METHOD AND DEVICE

  • US 20100027808A1
  • Filed: 11/20/2006
  • Published: 02/04/2010
  • Est. Priority Date: 12/05/2005
  • Status: Active Grant
First Claim
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1. A sound collection/reproduction method according to which a plurality of sound collection devices are arranged in proximity to one another, control filters in a number corresponding to the number of reproduction channels are connected to each of the sound collection devices, and the output signals from the control filters of each of the channels are added for each of the channels and output from each of the reproduction channels, whereinthe control filters are obtained by setting a plurality of control points in a sound field around the plurality of sound collection devices arranged in proximity to one another, determining a desired response function matrix and a transfer function matrix between the control points and each of the sound collection devices on the basis of measurement values, and, in cases where the directivity of the sound collection devices is designated, determining values of the control filters on the basis of the desired response function matrix and transfer function matrix between the control points corresponding to the designated directivity and each of the sound collection devices.

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