US 2008/0167869 A1 · Speech Recognition Apparatus

Abstract

A voice recognition system (10) for improving the toughness of voice recognition for a voice input for which a deteriorated feature amount cannot be completely identified. The system comprises at least two sound detecting means (16a, 16b) for detecting a sound signal, a sound source localizing unit (21) for determining the direction of a sound source based on the sound signal, a sound source separating unit (23) for separating a sound by the sound source from the sound signal based on the sound source direction, a mask producing unit (25) for producing a mask value according to the reliability of the separation results, a feature extracting unit (27) for extracting the feature amount of the sound signal, and a voice recognizing unit (29) for applying the mask to the feature amount to recognize a voice from the sound signal.

Claims9

Dependent claims

1-4. (canceled)

Dependencies are inferred from the claim text.

Facts

Application

11/792,052Filed 2 Dec 2005

Priority

3 Dec 2004

Published

10 Jul 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G10L 15/20
Speech recognition: speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
G10L 21/028
Voice signal separating: using properties of sound source
G10L 2021/02166
Number of inputs available containing the signal or the noise to be suppressed: microphone arrays; Beamforming
G10L
Speech analysis techniques or speech synthesis

Speech Recognition Apparatus

Life of this patent

Speech Recognition Apparatus

Life of this patent

Abstract

Claims9