VOICE/NON-VOICE DISCRIMINATING APPARATUS, VOICE PERIOD DETECTING APPARATUS, VOICE/NON-VOICE DISCRIMINATION METHOD, VOICE PERIOD DETECTION METHOD, VOICE/NON-VOICE DISCRIMINATION PROGRAM AND VOICE PERIOD DETECTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a voice/non-voice discriminating apparatus capable of performing appropriate transformation with respect to feature vectors.;SOLUTION: The voice/non-voice discriminating apparatus comprises a feature transformation parameter hold means 120 for holding a parameter of a transformation matrix calculated, based on a known training sample; a voice/non-voice discrimination parameter holding means 122 for holding the parameter of a voice/non-voice model calculated based on the training sample; a frame dividing means 102 for dividing an audio signal into frame units; a feature vector extracting means 104 for extracting the feature vector from the audio signal of a plurality of frames; a feature transforming means 106 for performing the linear transformation of the feature vector utilizing the feature transformation parameter; and a voice/non-voice discriminating means 110 for discriminating whether a predetermined input frame included in the plurality of frames is a voice frame or a non-voice frame.;COPYRIGHT: (C)2007,JPO&INPIT