| 摘要 |
PURPOSE:To provide an electronic string instrument capable of attaching a uniform compressor effect on plural strings. CONSTITUTION:A weighting addition processing circuit 300, an envelope extraction processing circuit 320, an envelope inversion processing circuit 340, and a multiplication processing circuit 360 are formed in a guitar by transferring a program and a coefficient to the DSP of the guitar, and weighting addition processing is performed at the weighting addition processing circuit 300 by applying addition processing after multiplying input waveforms W(INP1)-V(INP 6) from divided pickups by different weight coefficients P(01)-P(06). An envelope is extracted from a result in which the weighting addition processing is applied at the envelope extraction processing circuit 320, and an envelope signal is inverted at the envelope inversion circuit 340. An inversion envelope signal is multiplied by the input waveform W(INP0) from another pickup at the multiplication processing circuit 360, then, an output waveform can be generated. |
