Patent ID: 11961499
Assignee: YAMAHA CORPORATION
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G

Claim 10:
11. A sound signal generation method for a keyboard including a pedal and a key, the method comprising:
generating a first sound signal and a second sound signal different from the first sound signal based on first operation data corresponding to an operation of the key; and
adjusting a relationship between the first sound signal and the second sound signal to sound at respective timings according to a physical quantity of a key pressing operation of the key to control a decay rate of the first sound signal to be different from a decay rate of the second sound signal based on a key release operation of the key,
wherein the relationship includes a relationship between a timing of the sounding of the first signal and the second sound signal,
wherein the physical quantity includes an acceleration of the key,
wherein the relationship between the timing of the sounding of the first sound signal and the second sound signal varies based on the acceleration,
wherein the timing of the sounding of the first sound signal is before the timing of the sounding of the second sound signal, in a state where the acceleration is relatively small, and
wherein the timing of the sounding of the first sound signal is later than the timing of the sounding of the second sound signal, in a state where the acceleration is relatively large.