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Noise dependent signal processing for in-car communication systems with multiple acoustic zones

  • US 9,502,050 B2
  • Filed: 12/26/2012
  • Issued: 11/22/2016
  • Est. Priority Date: 06/10/2012
  • Status: Active Grant
First Claim
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1. An ICC system for a passenger compartment having acoustic zones, comprising:

  • a speaker dedicated module to receive first signals from a first microphone in a first one of the acoustic zones, wherein the first signals correspond to speech from a first user in the first one of the acoustic zones, wherein the first module is configured to maximize the speech from the first user and minimize signals not generated by the speech from the first user, wherein the speaker dedicated module is further configured to compensate for the Lombard effect based upon a target peak level for the speech from the first user corresponding to a level of background noise in the first one of the acoustic zones; and

    a listener specific module to optimize a first output signal, which comprises the speech from the first user, for a first loudspeaker in a second one of the acoustic zones including adjusting a volume of sound from the first loudspeaker based upon a noise estimate for the second one of the acoustic zones.

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