| 摘要 |
PURPOSE:To provide a chorus effect sound approximated to a human voice with an electronic musical instrument. CONSTITUTION:A musical signal outputted from a musical signal generator 10 through a key switch 13 is inputted through a Formant filter 15 to plural delay circuits 16-1-16-3, the output signals of these delay circuits are inputted through low-pass filters 17-1-17-3 to speakers 19-1-19-3, the delay circuits are controlled by delay control signals generated by delay control signal generators 22-1-22-3, a change control signal generator 21 to generate a change control signal corresponding to the operations of keys is constituted by being connected to the musical signal generator 10, the waveform of the musical signal contains a lot of higher harmonic waves and for the Formant filter 15, band filters respectively provided with resonance points near 800Hz, 1200Hz and 2600Hz at least are parallelly connected. |
