Voice Recognition Method and System Adapted to the Characteristics of Non-Native Speakers
First Claim
1. A method of recognizing a voice signal, comprising a step of generation by an iterative learning procedure of acoustic models representing a standard set of models of vocal units uttered in a given target language and a step of using the acoustic models to recognize the voice signal by comparison of that signal with the acoustic models obtained beforehand, characterized in that during the generation of the acoustic models, there is further generated an additional set of models of vocal units in the target language adapted to the characteristics of a foreign language.
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Abstract
The invention relates to a voice signal recognition method comprising a step of producing an iterative learning procedure of acoustic models representing a standard set of models of voice units pronounced in a given target language and a step of using the acoustic models to recognize the voice signal by comparing said signal with the acoustic models previously obtained. The method consists in further producing an additional set of voice units in the target language adapted to the characteristics of a foreign language during the production of the acoustic models.
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10 Claims
- 1. A method of recognizing a voice signal, comprising a step of generation by an iterative learning procedure of acoustic models representing a standard set of models of vocal units uttered in a given target language and a step of using the acoustic models to recognize the voice signal by comparison of that signal with the acoustic models obtained beforehand, characterized in that during the generation of the acoustic models, there is further generated an additional set of models of vocal units in the target language adapted to the characteristics of a foreign language.
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8. A voice recognition system, comprising means for analyzing voice signals (SV_MA) by using an iterative learning procedure to generate acoustic models representing a standard set of models of vocal units (UV_MA) uttered in a given target language, and means for comparing a voice signal to be recognized with the acoustic models of vocal units obtained beforehand, characterized in that the acoustic models further comprise an additional set of models of vocal units in the target language adapted to the characteristics of a foreign language.
Specification