| 摘要 |
<P>PROBLEM TO BE SOLVED: To generate resonance sound in which resonance sound and a resonance degree are appropriately changed according to stamping of a damper pedal. <P>SOLUTION: A resonance sound generating circuit 26 reads an impulse response data from a storage device, according to a control signal (Control signal 2) in which, when a stamping amount of the damper pedal is smaller than a predetermined threshold, a first impulse response data with a small resonance degree are selected, and when the stamping amount is the predetermined threshold or more, a second impulse response data with a large resonance degree are selected. Moreover, the resonance sound generating circuit 26 includes a multiplication circuit 31 for multiplying an output signal from a convolution arithmetic circuit 30 according to a control signal (Control signal 3) including a coefficient which at least partially increases a value according to the stamping amount of the damper pedal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
