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Sound field reproduction system

  • US 8,045,736 B2
  • Filed: 11/30/2007
  • Issued: 10/25/2011
  • Est. Priority Date: 12/01/2006
  • Status: Expired due to Fees
First Claim
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1. A sound field reproduction system comprising:

  • a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources;

    a narrow-directional speaker mounted in or near a front seat of a vehicle;

    a speaker mounted in or near a rear seat of said vehicle; and

    a signal processing unit for driving said narrow-directional speaker based on said first sound signal that has been processed according to a frequency range, and for driving said speaker based on said second sound signal, wherein said signal processing unit is configured to create a first sound-leakage reducing sound signal from said first sound signal, to combine said first sound-leakage reducing sound signal with said second sound signal, to create a second sound-leakage reducing sound signal from said second sound signal, and to combine said second sound-leakage reducing sound signal with said first sound signal.

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