ELECTRONIC MUSICAL INSTRUMENT, TOUCH DETECTION APPARATUS, TOUCH DETECTING METHOD, AND STORAGE MEDIUM

摘要

In a touch detection apparatus 50, the controller 51 predicts damper-on arrival time as time of arrival of generation of a damper-on event based on a period of time counted by a first counter 54 from when a second contact point 160b is turned off until when a first contact point 160a is turned off. The second counter 55 counts time to be compared to the damper-on arrival time. The comparator circuit 58 compares the time counted by the second counter 55 and the damper-on arrival time. If the time counted by the second counter 55 and the damper-on arrival time agree with each other, the comparator circuit 58 transmits a key release agreement signal triggering generation of a damper-on event to the controller 51. If the key release agreement signal is transmitted from the comparator circuit 58, the controller 51 executes control to generate a damper-on event.

主权项

1. An electronic musical instrument comprising a touch detection apparatus that comprises: a keyboard with multiple keys that designate the tones of corresponding musical sounds to be generated;
a first contact point provided for each of the keys, the first contact point being turned on if a press amount increases to a first value in response to key pressing action on this key, the first contact point being turned off if the press amount decreases to a value below the first value in response to key releasing action on the key; a second contact point that is turned on if the press amount of the key increases further to a second value larger than the first value in response to the key pressing action, the second contact point being turned off if the press amount decreases to a value below the second value in response to the key releasing action; a key press counter that counts a period of time from when the first contact point is turned on until when the second contact point is turned on in response to the key pressing action; a note-on event generation unit, in response to turning on the second contact point, the note-on event generation unit generating a note-on event to instruct generation of a musical sound of a volume corresponding to the period of time counted by the key press counter and of a pitch corresponding to the pressed key; a key release counter that counts a period of time from when the second contact point is turned off until when the first contact point is turned off in response to the key releasing action; and a note-off event generation unit, after elapse of time corresponding to a count value in the key release counter from turning off the first contact point, the note-off event generation unit generating a note-off event to instruct deadening of a musical sound of a pitch corresponding to the released key, the electronic musical instrument comprising a sound source that generates a musical sound and deadens a musical sound based on the note-on event and the note-off event generated by the touch detection apparatus.