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Multi-sensory speech enhancement using a clean speech prior

  • US 7,346,504 B2
  • Filed: 06/20/2005
  • Issued: 03/18/2008
  • Est. Priority Date: 06/20/2005
  • Status: Active Grant
First Claim
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1. A method of determining an estimate for a noise-reduced value representing a portion of a noise-reduced speech signal, the method comprising:

  • generating an alternative sensor signal using an alternative sensor other than an air conduction microphone;

    generating an air conduction microphone signal;

    using the alternative sensor signal and the air conduction microphone signal to estimate a value for a channel response of the alternative sensor signal; and

    using the channel response and a prior probability distribution of the noise-reduced value to estimate the noise-reduced value.

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