METHOD FOR DIVIDING LETTER SEQUENCES INTO PRONUNCIATION UNITS, METHOD FOR REPRESENTING TONES OF LETTER SEQUENCES USING SAME, AND STORAGE MEDIUM STORING VIDEO DATA REPRESENTING THE TONES OF LETTER SEQUENCES

摘要

Disclosed is a method for dividing pronunciation units which includes the steps of: extracting voice-intensity maxima and minima in voice waveforms of letter sequences; forming a group by grouping the extracted maxima together; dividing the letter sequences into pronunciation units around the points nearest to either side of the group from among minima on both sides of the group, voice start points, and voice end points.