Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2003-11-26
2009-12-08
Hudspeth, David R (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C704S219000, C704S226000, C704S228000, C704S231000, C704S246000, C704S200000, C704S248000, C704S249000
Reexamination Certificate
active
07630891
ABSTRACT:
The present invention relates to a voice region detection apparatus and method capable of accurately detecting a voice region even in a voice signal with color noise. The voice region detection method comprises the steps of, if a voice signal is input, dividing the input voice signal into frames; performing whitening of surrounding noise by combining white noise with the frames; extracting random parameters indicating randomness of frames from the frames subjected to the whitening; classifying the frames into voice frames and noise frames based on the extracted random parameters; and detecting a voice region by calculating start and end positions of a voice based on the voice and noise frames. According to the present invention, the voice region can be accurately detected even in a voice signal with a large amount of color noise mixed therewith.
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Lee Yong-beom
Oh Kwang-cheol
Hudspeth David R
Samsung Electronics Co,. Ltd.
Shah Paras
Staas & Halsey , LLP
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