| 摘要 |
<P>PROBLEM TO BE SOLVED: To change characteristics of musical sound control for pedal operation every interval of a pedaling stroke with a simple configuration. <P>SOLUTION: A keyboard instrument 20 controls a musical sound parameter on the basis of a control signal S1, which is an output value obtained by converting a detection value (S0) indicating a position of a pedal 24 in the table TBLa group. In a default table TBLa0 and a substitute table TBLa1 of a table TBLa group, an interval from a shallow side threshold P1 to a starting position of an intermediate interval HP1 and an interval from an end position of an intermediate interval HP0 to a deep side threshold P2 are hysteresis intervals. When the detection value passes the deep side threshold P2 in an advance stroke, the table is switched from the table TBLa0 to the table TBLa1. On the other hand, in a returning stroke from an area passing the deep side threshold P2, the table is switched from the table TBLa1 to the table TBLa0 when the detection value passes the shallow side threshold P1. <P>COPYRIGHT: (C)2010,JPO&INPIT |
