ACOUSTIC FEATURE QUANTITY CALCULATION DEVICE AND METHOD, SPECIFIC SITUATION MODEL DATABASE PREPARATION DEVICE, SPECIFIC ELEMENT SOUND MODEL DATABASE PREPARATION DEVICE, SITUATION ESTIMATION DEVICE, CALL PROPRIETY NOTIFICATION DEVICE AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an acoustic feature quantity calculation technique capable of extracting broader periodicity.;SOLUTION: An acoustic feature quantity calculation device 1 comprises: a frame division part 12 for dividing an input acoustic signal into frames of a predetermined time length; and a time periodicity calculation part 1310. In the time periodicity calculation part 1310, regarding M as a predetermined positive integer, p_s(n) as an index indicating a size of n-th sample of each frame after smoothing, p_s^- as an average value of indices indicating sizes of n-th sample of frames after smoothing, a value defined by an expression below is calculated and the calculated value is regarded as time periodicity of each frame.;COPYRIGHT: (C)2014,JPO&INPIT