| 摘要 |
PROBLEM TO BE SOLVED: To adjust localization direction of respective frequency components of an acoustic signal precisely with ease.SOLUTION: An acoustic processing device 100 generates a 5-channel acoustic signal Y from a 2-channel acoustic signal X. A display control part 36 causes a display device 26 to display a sound image distribution picture 50 representing sound image distribution of respective frequency components within a sound image plane in which a radial direction whose center is a reference point P0 corresponds to a frequency while a circumferential direction corresponds to a localization direction. The display control part 36 shifts the sound image distribution in an operational target region B corresponding to a frequency range AF set in radial direction in the sound image plane and a localization range AP set in the circumferential direction, to the circumferential direction according to instruction from a user. An acoustic signal Y is generated from an acoustic signal X in such a manner as the sound image distribution of respective frequency components of the acoustic signal Y corresponds to the sound image distribution which is represented by the sound image distribution picture 50 after the operational target region B is shifted. |
