Acoustic processor, acoustic processing program and acoustic processing method

摘要

Problem to be solved: to output a masker signal indicative of a higher masking effect to the sound output from the speaker.A method 201 for dividing an input signal supplied from a microphone for collecting sounds from an object sound source into a predetermined length and a predetermined lengthMeans 211 for estimating the pitch of the frame divided input signals andA method 203 for accumulating the estimated pitch estimation results for each frame by frame and input to the frameA method 205A which selects the masker piece signal used to generate the masker signal from the estimated pitch estimation result and past pitch estimation result stored in the input signal storage meansThe signal used to generate the mass signal isAt least a means 206A for generating and outputting a mass car signal that makes the speech output from the object sound source difficult to listen toFrequency characteristics of the masker signalThe corrected mass signal is corrected according to the frequency characteristic of the target sound source.A means 207 for outputting the corrected mass car signal to the output means is provided.Diagram