| 摘要 |
PROBLEM TO BE SOLVED: To surely realize the same effect as feedback performance even in any place by electrically reproducing a feedback loop formed by real feedback execution. SOLUTION: In an effect device 10, a musical sound signal inputted to an input means 18 by the feedback loop 26 is fed back through a filter means 22, and the musical sound signal inputted to the input means 18 is synthesized with the fed back musical sound signal by an adder 24 to be outputted. Then, a pitch at an oscillation time is decided based on the frequency characteristic of the filter means 22. In such a case, since the frequency characteristic of the filter means 22 is controlled based on the pitch of the musical sound signal detected by a pitch detection means 20, thus, the oscillation is performed by the pitch of the musical sound signal inputted from the input means 18, and the feedback performance realized by the feedback execution is simulated. |
