Unvoiced/voiced decision for speech processing
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United States of America Patent
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Feb 14, 2017
Grant Date -
Mar 12, 2015
app pub date -
Sep 3, 2014
filing date -
Sep 9, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
In accordance with an embodiment of the present invention, a method for speech processing includes determining an unvoicing/voicing parameter reflecting a characteristic of unvoiced/voicing speech in a current frame of a speech signal comprising a plurality of frames. A smoothed unvoicing/voicing parameter is determined to include information of the unvoicing/voicing parameter in a frame prior to the current frame of the speech signal. A difference between the unvoicing/voicing parameter and the smoothed unvoicing/voicing parameter is computed. The method further includes generating an unvoiced/voiced decision point for determining whether the current frame comprises unvoiced speech or voiced speech using the computed difference as a decision parameter.
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