| 摘要 |
PURPOSE:To generate an envelope waveform with an attach feeling even when key-off timing is fast by setting a specific position on the envelope waveform, and comparing a position on the envelope waveform at key-off timing with the specific position and delaying a key-off process. CONSTITUTION:The device consists of a central processing unit(CPU) 10, a key detecting circuit 13, an EG setting switch 14, a sound source circuit 16, a keyboard 18, etc. Then the specific position DP is set on the envelope waveform and the position on the envelope at the key-off timing is compared with the specific position DP to delay the key-off processing of the envelope waveform according to the comparison result. Consequently, even when the key-off timing is too fast, the envelope waveform having the sufficient attach feeling is generated. |
