Speaker adaptation system and method based on class-specific pre-clustering training speakers
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United States of America Patent
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Jun 6, 2000
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N/A
app pub date -
Feb 4, 1998
filing date -
Feb 4, 1998
priority date (Note) -
Expired
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Abstract
A method of speech recognition, in accordance with the present invention includes the steps of grouping acoustics to form classes based on acoustic features, clustering training speakers by the classes to provide class-specific cluster systems, selecting from the cluster systems, a subset of cluster systems closest to adaptation data from a test speaker, transforming the subset of cluster systems to bring the subset of cluster systems closer to the test speaker based on the adaptation data to form adapted cluster systems and combining the adapted cluster systems to create a speaker adapted system for decoding speech from the test speaker. System and methods for building speech recognition systems as well as adapting speaker systems for class-specific speaker clusters are included.
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