| 摘要 |
PROBLEM TO BE SOLVED: To make the keyboard device of the electronic musical instrument, and the electronic piano nearly equal in touch feeling and touch response to an acoustic piano. SOLUTION: The timing and strength of a hit when a hammer equivalent part is in inertial motion are detected by a 1st sensor at a position S1 deeper than a keyboard stroke limit L. Further, a 2nd sensor detects the timing where a specific member comes to a specific position at positions D1-D4 shallower than the 1st sensor and the timing and intensity of sounding are controlled according to those detection results. The hit made when the hammer equivalent member is in inertial motion corresponds to the string hitting of the acoustic piano, so the sounding timing is controlled through the detection of the 1st sensor and the sounding intensity is controlled according to the time difference from the detection timing of the 2nd sensor, so that nearly the same touch response with the acoustic piano is obtained at the time of the sounding. |
