SPEECH RECOGNITION DEVICE AND METHOD THEREOF, PROGRAM AND RECORDING MEDIUM

Japanese Patent JP2011002494

A

To improve the processing efficiency of a speech recognition device while maintaining speech recognition accuracy by adaptively changing the operation of a speech recognition processing section by a control signal corresponding to the quality of a speech data.

A frame sound quality estimation section 10 of the speech recognition device 100 outputs frame quality by evaluating sound quality of a speech digital signal for each frame, and an average sound quality estimating section 20 estimates a sound quality level from the frame sound quality of a plurality of frames. A speech recognition processing control section 30 outputs a control signal for controlling operation at speech recognition processing time to the speech recognition processing section based on the sound quality level. The speech recognition processing section 92' performs speech recognition processing based on the control signal.

JP2745535	[Title of Invention] Speech recognition device
JP2009069305	SOUND ECHO CANCELER AND IN-VEHICLE DEVICE
JP4362072	A voice signal analysis method and a device that implements this analysis method, a voice recognition device that uses this voice signal analysis device, a program that executes this analysis method, and a storage medium thereof.

KOBASHIGAWA SATORU
YAMAGUCHI YOSHIKAZU
ASAMI TAICHI
JIN AKIO
MASATAKI HIROKAZU
TAKAHASHI SATOSHI

JP2009143173A

January 06, 2011

June 16, 2009

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NIPPON TELEGRAPH & TELEPHONE

G10L15/20; G10L15/06; G10L15/065; G10L15/08

JPH08123467A	1996-05-17
JP2004198832A	2004-07-15
JP2000172291A	2000-06-23
JP2009128490A	2009-06-11
JPH10312194A	1998-11-24
JPH09258765A	1997-10-03
JP2000322080A	2000-11-24
JP2001075594A	2001-03-23
JP2000259181A	2000-09-22

Naoki Nakao
Taku Kusano
Yukio Nakamura

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