Kaion data generating device, Kaion data generation method, Kaion apparatus, Kaion method and program

摘要

PROBLEM TO BE SOLVED: To work a masking effect even if a signal level of BGM to be reproduced is lowered to some extent.SOLUTION: In frequency analysis processing 32, noise maximum value spectral data 12, noise average value spectral data 13 and music average value spectral data 14 are output, and in filter function creation processing 33, filter function data 15 is output. In filtering processing 34, music data 5 is converted into frequency dimensions by frequency dimension conversion processing to output instant complex spectral data. Continuously, the filter function data 15 is input, and the instant complex spectral data is converted into first conversion spectral data. The noise average value spectral data 13 is further input, and the first conversion spectral data is converted into second conversion spectral data by spectral subtraction processing. The second conversion spectral data is converted into time dimensions by time dimension inverse conversion processing, and comfortable sound data 7 is output.