| 摘要 |
PURPOSE:To output every kind of audio signal by setting and changing an input audio signal to arbitrary pitch with simple configuration and with a low cost by controlling the amount of change of the pitch of a pitch changing means which changes the pitch of the input audio signal corresponding to relation between designated pitch and preset reference pitch. CONSTITUTION:A pitch setting means 16 which corresponds the pitch of the input audio signal to prescribed reference pitch, an operating means 9, the pitch changing means 3, and a change amount control means 17 are provided. The amount of change of the pitch in the pitch changing means 3 which changes the pitch of the input audio signal corresponding to relation between the pitch designated by the operating means 9 and the reference pitch set by the pitch setting means 16 is controlled. Thereby, it is possible to obtain an electronic musical instrument capable of changing the pitch of the input audio signal with simple constitution and with low cost, and also, to set and change even the audio signal of a noise system hard to detect the pitch to prescribed pitch. |
