Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 28, 2009
Patent Application Number
11034535
Date Filed
January 12, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method and apparatus for performing speech recognition are provided. A Vocal Tract Length Normalized acoustic model for a speaker is generated from training data. Speech recognition is performed on a first recognition input to determine a first best hypothesis. A first Vocal Tract Length Normalization factor is estimated based on the first best hypothesis. Speech recognition is performed on a second recognition input using the Vocal Tract Length Normalized acoustic model to determine an other best hypothesis. An other Vocal Tract Length Normalization factor is estimated based on the other best hypothesis and at least one previous best hypothesis.
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