VOICE PROCESSOR, DYNAMIC IMAGE PROCESSOR, VOICE/MOVING IMAGE PROCESSOR AND RECORDING MEDIUM WHICH RECORDS VOICE/DYNAMIC IMAGE PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a voice processor in which a laughter segment is automatically extracted employing a small amount of computations and memory size.;SOLUTION: A voice processor 10 is provided with a database 101 which stores voice power, pitch, amplitudes of voice waves and frequency spectrum for every frame, a voice segment discriminating section 102 which extracts a voice segment from the data stored in the database 101, an amplitude discriminating section 104 which obtains rms amplitude values of amplitude information of each segment of extracted voice and computes an average of sound pressure change of each segment, a voice recognition section 105 which compares the result of the amplitude discrimination section 104 with a threshold value and determines a segment as a laughter segment when the condition in which the result that is larger than the threshold value continues for a prescribed time, a laughter segment storage section 106 which stores an extracted laughter segment and an output section 107 which outputs voice information indicating a laughter segment. Note that a laughter segment is extracted from voice signals by utilizing the fact that the average value of the rms amplitude values in a laughter segment has a tendency to be greater than the threshold value.;COPYRIGHT: (C)2005,JPO&NCIPI