| 摘要 |
PROBLEM TO BE SOLVED: To provide an acoustic signal processing apparatus capable of imparting various acoustic effects to an acoustic signal without being accompanied with unnaturalness.SOLUTION: A band dividing part 10 divides an input acoustic signal SI into signal components S1-S3 of a plurality of bands. A ratio setting part 100 sets a plurality of ratios Ra1'-Ra3' corresponding to the plurality of bands and a ratio Ra0' corresponding to a single band. A plurality of control value generation parts 21-23 generate control values C1-C3 on the basis of levels of the signal components S1-S3 of the plurality of bands and the plurality of ratios Ra1'-Ra3'. A control value generation part 30 generates a control value C0 on the basis of a signal component of the signal band and the ratio Ra0'. The signal components S1-S3 of the plurality of bands are controlled on the basis of the control values C1-C3, and the signal component of the single band is controlled on the basis of the control value C0. The ratios Ra1'-Ra3' and the ratio Ra0' are interlocked with each other so as to be changed in a complementary manner.SELECTED DRAWING: Figure 1 |
