VOICE RECOGNIZING METHOD, DEVICE FOR EXECUTING THE METHOD, AND STORAGE MEDIUM STORING PROGRAM FOR EXECUTING THE METHOD

摘要

PROBLEM TO BE SOLVED: To enable a computer which has small computation resources to execute a voice recognition which is reducible in necessary memory capacity and arithmetic processing quantity and makes it possible to add or change a word to be recognized by representing an inputted unknown voice by using a symbol and collating it with the data stored by using not time intervals, but the state of the voice through character string compression. SOLUTION: A phoneme discrimination part 3 compares a feature quantity converted by a feature extraction part 1 with a phoneme standard pattern supplied from a phoneme standard pattern storage part 2 and outputs the symbol of the most likelihood phoneme standard pattern. A character string compression part 4 deletes a redundant part from the symbol outputted from the phoneme discrimination part 3. A pattern matching part 6 collates the character string outputted from the character string compression part 4 with character strings stored in a word template 5 and outputs the number of the most likelihood word template and other symbols. A distance value table 7 contains distance values between characters used for the pattern matching.