Pitch determination for speech processing
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United States of America Patent
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app pub date -
Feb 14, 2008
filing date -
Sep 18, 1998
priority date (Note) -
Abandoned
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Abstract
There is provided a method of selecting a pitch lag value for a portion of a speech signal, the method comprising: computing a weighted correlation function of the portion of the speech signal for a range of delay times, wherein the weighting of the correlation function depends on both the delay time and a characteristic of one or more previous portions of the speech signal; and selecting the pitch lag value based on a delay time from the range of delay times that maximizes the weighted correlation function.
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