Speech modeling and enhancement based on magnitude-normalized spectra
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United States of America Patent
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Apr 19, 2011
Grant Date -
Jun 28, 2007
app pub date -
Dec 23, 2005
filing date -
Dec 23, 2005
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Abstract
A frame of a speech signal is converted into the spectral domain to identify a plurality of frequency components and an energy value for the frame is determined. The plurality of frequency components is divided by the energy value for the frame to form energy-normalized frequency components. A model is then constructed from the energy-normalized frequency components and can be used for speech recognition and speech enhancement.
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