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    Synthesiser group and FM index

    Scheduled Pinned Locked Moved General Questions
    fm synthesissynth groupindex
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    • B
      BK Sannerud
      last edited by 11 Sept 2023, 19:46

      I am experimenting with making a simple FM synth.

      I have a question that I do not find the answer to in the documentation.
      What do the "Carrier Index" and "Modulator Index" do?
      I have a DX7 and to me, it sounds like changing the values of the indexes changes the algorithm?
      can anyone explain?

      Thank you,

      BK

      C 1 Reply Last reply 12 Sept 2023, 16:21 Reply Quote 0
      • C
        Christoph Hart @BK Sannerud
        last edited by 12 Sept 2023, 16:21

        @BK-Sannerud You can set one sound generator to be used as modulator that will modulate the frequency of the other one (the carrier). On the module interface, you can use these drop downs to control it:

        cfd9c203-05dc-4207-9f71-c04877b8eab2-image.png

        And those parameters are just a programatical way of controlling them (I think they are zero-index based but that should be easy to find out).

        B 1 Reply Last reply 12 Sept 2023, 21:04 Reply Quote 0
        • B
          BK Sannerud @Christoph Hart
          last edited by 12 Sept 2023, 21:04

          @Christoph-Hart Ah ok! Thank you! So it is like setting the Algorithm then or routing, only just with 2 Ops. Lovely.

          C 1 Reply Last reply 13 Sept 2023, 08:14 Reply Quote 0
          • C
            Christoph Hart @BK Sannerud
            last edited by 13 Sept 2023, 08:14

            @BK-Sannerud Yes it's a pretty simple setup compared to other FM synths, but it gives you the ability to FM a multisample set, which is nice.

            If you want to go crazy with multiple chained modulators etc, you need to look into scriptnode.

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