Sound generating system for a keyboard

Details Sound generating system for a keyboard Sound generating system for a keyboard

G - Physics

06

F

340/175, 354/236

G06F 3/02 (2006.01) G06F 3/023 (2006.01)

Patent

CA 1254665

SOUND GENERATING SYSTEM FOR A KEYB0ARD Abstract A method and apparatus for establishing the volume level of a tone generator associated with a keyboard in which the tone generator will output a click tone when each key on the keyboard is actuated. In establishing the volume level of a click tone, the keyboard is put into a volume setting mode by the actuation of two key members of the keyboard. The subsequent actuation of each key member will produce a different volume level of the click tone. The actuating of a key member results in the storing of a count in a storage member. The storage member is then downcounted until it reaches zero. Upon reaching the count of zero, processing means generates a pulse train in which the pulse width is determined by the time it takes for the storage member to count down to zero.

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