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- Patents > 2007-11-08 > SECTION G PHYSICS > MUSICAL INSTRUMENTS; ACOUSTICS > SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION
Feature-vector compensating apparatus, feature-vector compensating method, and computer program product
A noise-environment storing unit stores therein a compensation vector for compensating a feature vector of a speech. A feature-vector extracting unit extracts the feature vector of the speech in each of a plurality of frames. A noise-environment-series estimating unit estimates a noise-environment series based on a feature-vector series and a degree of similarity. A calculating unit obtains a compensation vector corresponding to each noise environment in estimated noise-environment series based on the compensation vector present in the noise-environment storing unit. A compensating unit compensates the extracted feature vector of the speech based on obtained compensation vector.
Filed on: 2007-03-19; Application Number: 11723410