| 摘要 |
PROBLEM TO BE SOLVED: To display in various aspects distributions of audio images in a localization-frequency plane.SOLUTION: The acoustic analysis device comprises: a localization analysis section 24 for calculating a distribution DA of audio images of acoustic signals s(t) in a localization-frequency plane; a coefficient setting section 30 for setting a shape coefficient dX and a shape coefficient dY according to an instruction by a user; a distribution smoothing section 26 for smoothing a distribution DA of the audio images by applying a standard distribution in which kurtosis in the direction of a localization axis X changes depending on the shape coefficient dX and kurtosis in a direction of frequency axis Y changes depending on the shape coefficient dY, to calculate a distribution DB of audio images; and a display control section 28 for displaying the distribution DB of audio images on a display device 14. |
