| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus, a method, and a program for musical sound processing that imparts natural unison singing effect. <P>SOLUTION: A pseudo-random signal generation unit 500 comprises a plurality of pseudo-random signal generation parts 510. The respective pseudo-random signal generation parts 510 generate pseudo-random signals differing in way of varying etc., and supply those pseudo-random signals to corresponding clone signal generation parts 410. A pseudo-random signal generated by each pseudo-random signal generation part 510 has its white noise processed by an LPF. The cutoff frequency of the LPF is set to a value matching natural ways of variation and fluctuation when a person sings most (in concrete, about 2 Hz). Each clone signal generation part 410 uses the pseudo-random signal as a modulation signal to perform voice conversion. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
