VOICE RECOGNITION PERFORMANCE IMPROVEMENT METHOD

摘要

A method for improving a voice recognition performance according to an embodiment of the present invention is provided to improve a voice recognition performance for a voice inputted under noise circumstances based on at least a single voice recognition feature vector. The method for improving a voice recognition performance according to an embodiment of the present invention includes the steps of: extracting at least two or more feature vectors according to at least two or more sound models which are set by each phoneme for an inputted Korean voice; extracting an observation probability value by each phoneme through the previous feature vectors of at least two or more sound models and at least two or more feature vectors which are preset for an integrated sound model activated in a viterbi decoder; and resetting the integrated sound model based on the extracted observation probability value by each phoneme, and re-recognizing the Korean voice by each phoneme.