Digital sound processing system for a vehicle

  • US 7,542,575 B2
  • Filed: 02/07/2005
  • Issued: 06/02/2009
  • Est. Priority Date: 04/08/1998
  • Status: Active Grant
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First Claim
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1. A digital sound processing system suitable for use in a vehicle, said digital sound processing system comprising:

  • an interior rearview mirror assembly;

    said interior mirror assembly including at least a first microphone and a second microphone;

    said first microphone generating a first signal indicative of a vocal input with vehicle cabin noise included therewith;

    said second microphone generating a second signal indicative of a vocal input with vehicle cabin noise included therewith;

    a digital signal processor;

    said digital signal processor processing said first signal and said second signal and providing an output signal with reduced vehicle cabin noise; and

    wherein said digital signal processor comprises a microprocessor, said microprocessor executing at least one million instructions per second.

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