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Voice activity detection system and method

  • US 20100057453A1
  • Filed: 11/16/2006
  • Published: 03/04/2010
  • Est. Priority Date: 11/16/2006
  • Status: Active Grant
First Claim
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1. A computerized method for discriminating between at least two classes of events, the method comprising the steps of:

  • receiving a set of frames containing an input signal, determining at least two different feature vectors for each of said frames,classifying said at least two different feature vectors using respective sets of preclassifiers trained for said at least two classes of events,determining values for at least one weighting factor based on outputs of said preclassifiers for each of said frames,calculating a combined feature vector for each of said frames by applying said at least one weighting factor to said at least two different feature vectors, andclassifying said combined feature vector using a set of classifiers trained for said at least two classes of events.

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