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System for suppressing rain noise

  • US 8,374,855 B2
  • Filed: 05/19/2011
  • Issued: 02/12/2013
  • Est. Priority Date: 02/21/2003
  • Status: Expired due to Term
First Claim
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1. A system for attenuating rain noise, comprising:

  • a rain noise detector configured to analyze a frequency spectrum of an input signal to identify whether the input signal contains a rain noise, where the rain noise detector is configured to fit a model to a portion of the input signal and identify that a noise of the input signal is associated with rain based on a correlation between the model and the portion of the input signal; and

    a rain noise attenuator configured to remove at least a portion of the rain noise identified by the noise detector from the input signal to obtain an output sound signal with reduced rain noise content.

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