Speech recognition system including dimensionality reduction of baseband frequency signals
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United States of America Patent
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Feb 10, 2004
Grant Date -
N/A
app pub date -
Oct 24, 2000
filing date -
Oct 29, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for use in a speech recognition system in which a speech waveform to be modelled is represented by a set of feature extracted parameters in the time domain, the method comprising dividing individual ones of one or more of said feature extracted parameters to provide for each divided feature extracted parameter a plurality of frequency channels, and demodulating at least one of the plurality of frequency channels to provide at least one corresponding baseband frequency signal.
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