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    How to build SNEX Playground?

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    • ustkU
      ustk @Casmat
      last edited by ustk

      @Casmat A good sounding distortion unit is much more than just the saturation function. It needs clever filtering, oversampling to remove aliasing, etc... Tanh is a good starting point, but you need to understand if you want more or less of the odd or even harmonics, or asymmetric distortion. And this is only the beginning, as a "true analog sounding" algorithm is much more... You might find some literature about this in your fav search engine. The first steps you've made is a good start! Just go for a simpler equation until you know what it does 😉

      Can't help pressing F5 in the forum...

      CasmatC 3 Replies Last reply Reply Quote 0
      • CasmatC
        Casmat @ustk
        last edited by

        @ustk Thanks! Will definitely take a look!

        i make music

        1 Reply Last reply Reply Quote 0
        • CasmatC
          Casmat @ustk
          last edited by Casmat

          @ustk Think I'm ready to try again with the saturator, did some research on the topics and I feel much more confident going forward! Seriously, thank you haha! Instead of going for that other formula, i found a more simpler cubic formula: https://www.hackaudio.com/digital-signal-processing/distortion-effects/soft-clipping/

          So with the formula, would the equation in snex look something like this?

          out = in - a * (1.0 / 3.0) * Math.pow(in, 3);
          

          Edit: All the filtering/oversampling should be done with other nodes in scriptnode, right? or is it within the snex shaper node itself?

          HiseSnippet 1321.3oc2X0sSbaDEdLvPxRRpZhRT6k9hdAQJEsKMMsR8h.rvlrpYAKLkj6PSrmkczNdFKOiA1V066iUeD5iPeDxaP643wK1FVQgsoIsEjf87yLy24+CDjoi3FiNi305fIobh2cogST1QcGwDJR+sIdeBc.yX4Y9NVaMIkYL7Xhm2hu.Y30ZIRwWu64awjLUDuhEgbnVDwekHQXq3Frw2KjxdrX9AhjZZ+zM5GoUc0RcNfmEosIornwri46xP0VfR7VdmXgUmEZYVtAzYKc7jvQ5SUN8OTXDuUxQhNjP3hbrIcGIjwASsUCg3QCpr7EcV9CoCDwhy4W4A9zBA9UmntOvagqBRctAPxqFjVxAo6SCixDo1JIHdtCsuBBHCYfqtNTb5R79UZWMnfxtVBaLuWFPb9AV8Ysa+De3GO96FlqhrBsxWq1Ua46oV8wq7SqzZkedE+KJZ3vYJCelLsTxyloXL5lcUGbUUdxa4YOw+DlLmethf42zmt70ymF4r5ZJpU8UB6do7R5dZYL5qvOe4H.ozsAe5G5uMyxvfRIOPuTdlUfvwaa9IPVsKD0htM2L1pSg75KE+fLGcbtjYalNg0MkB.+QiXHFnTFgcR85paPNV6qLG65Bw6SCD1nQyFiKLCLBdp+IvXYk48n6LbHOxVAvkn8dy7VF19FWFtRYYH7l3ie2RR+duoyLK.+EZUxdZFOkkwOPGHYSV0vRRk78AL9D+2J0QiCE+H+xUHoNHrEpwpQiXJEWZlmBokeO0bhruN2JTGOfYyDmAsO2MOIDZSGw6VhNfm2BXMjitMRi4EgbUbAwe.eUJrCR6UJryTg0J+1kaOUmMtHbT9Yh2sb9dSgS9ngm0groTpOsqNIUTlk5LJdlof3Vz1qAeSByMPGf38TgBIuX9DZjEGNPKmjNRqDQX7ycUSMoMSz4.ZJsqWxLGvDRL+2agc0wvsrbOVD3bmDvrivZFr+CjfxyVK57D0F3sJWoHKDhCArLX1Fza133gW7zAfN+GfoDzoTL9aQTtyqTf.J9D2iZT7yNxLhAcnHMvzC.LkwWqt754q+UuVsldt5BjBp5W.e1VztR3l5GSNDS5tHNvqBR0OqrOJ8.FjngYRgRQLOK.lriTalGKz8DNQvuKbEDx1BSJTurUNT26pJavAgfJle1zTmcfr+XnydwigXmTywhPeJEDzFHTk.tp40.1YWf26ddnkmhUm00KbL+TmCttln2fRYIVxkt3F3fbk9y6R6aNDkFwjSuHHyaKsdbBqnV3u8ToG4DdG5qYmvKVyqHG8QEzC0YI9ufCou3rfNWwhd+10cQuzq8hd6EYAHbPFSYR0Fdm527EjsdcYays4plp6X0PKz75AlWM8t8FSYtdclALUiKCnabSCvleSI+8muiBypC4f0DumIBLV1ExMBxkF9qEw1QcpevJ1qWm8KYYwPbIpwf0Ea1CeoqWO7l6XTS+YLxa4OBKC+9YQkOh6R0XQgVSwXn.65si5DtDJMKv3CfZwgrbocJ2l0VCzJ8zQPUQ884vf1iOl2rQyrLnMsVnWZEmGtw9bImYpUu8Ea7JXrDKaPwPi4xWby+aWlY75yoN35iMD7+u6NvK9+5cfu9UeP+v+cGE+LJzWdc+hPo+GmX4GhUm+P7FIrnL8QQt+hCrn+1Eb.6VU7+moEc.R62gbha6EJt+MIAFWbTTDlu9kvzmYel0miy7UywYd5bbludNNyyliy7MywY91q7L3j5Mys5DWNOvHXG2JxdtMWJR+I+I5asV1C
          

          Thanks!

          i make music

          Christoph HartC 1 Reply Last reply Reply Quote 0
          • Christoph HartC
            Christoph Hart @Casmat
            last edited by Christoph Hart

            @Casmat for these simple one liners you can also use the math.expr node, just rename your variables to input and value and you can use the single parameter as drive parameter:

            output = input - value * (1.0f / 3.0f) * Math.pow(input, 3.0f);
            

            and yes, the filtering and oversampling can be done with dedicated nodes.

            CasmatC 2 Replies Last reply Reply Quote 0
            • CasmatC
              Casmat @Christoph Hart
              last edited by

              @Christoph-Hart ooh! That's definitely useful! Thanks Christoph!

              i make music

              1 Reply Last reply Reply Quote 0
              • CasmatC
                Casmat @Christoph Hart
                last edited by

                @Christoph-Hart Oops tried it, but it seems to not make a distorting sound, am I supposed to do more than adding the math.expr node?

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                i make music

                Christoph HartC 1 Reply Last reply Reply Quote 0
                • Christoph HartC
                  Christoph Hart @Casmat
                  last edited by

                  @Casmat sure it does, it's just subtle. Drive the synth at 0dB and play multiple notes.

                  CasmatC 1 Reply Last reply Reply Quote 1
                  • CasmatC
                    Casmat @Christoph Hart
                    last edited by

                    @Christoph-Hart thanks Christoph!

                    i make music

                    1 Reply Last reply Reply Quote 0
                    • CasmatC
                      Casmat
                      last edited by Casmat

                      @ustk @d-healey @Christoph-Hart Tried to implement the original musicdsp.org formula, but it seems to be affecting the top half of the wave, I tried doing

                      return out * -1.0f;
                      

                      and it worked for just the bottom, but How do I make it so the top and bottom of the wave is being affected? Basically making an odd symetrical curve on the shaper

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                      Edit: Don't know if it'd be useful, but here's a cpp script of the same music dsp code being implemented into a program called psycle: SourceForge

                      Note: Since the snippet probably doesn't work, you'd have to create a new file and copy/paste the get sample function and paramemter callbacks from here: https://justpaste.it/3iopy

                      i make music

                      1 Reply Last reply Reply Quote 0
                      • CasmatC
                        Casmat @ustk
                        last edited by

                        @ustk @d-healey @Christoph-Hart quick bump/update, on the other cpp code in my last post, the code had this:

                        		if (sl > 0) {
                        			ProcessChannel(sl);
                        		}
                        		else {
                        			sl = -sl;
                        			ProcessChannel(sl);
                        			sl = -sl;
                        		}
                        

                        which I think is what gives them the odd symmetrical waveshaping effect, tired to implement this in hise, swapping the sl for input and I got an even symmetrical waveshaping effect, I'm lost haha!

                        i make music

                        CasmatC 1 Reply Last reply Reply Quote 0
                        • CasmatC
                          Casmat @Casmat
                          last edited by

                          @Casmat nvm got it! Had to tinker and multiply a couple values by negatives and add if statements!

                          i make music

                          1 Reply Last reply Reply Quote 0
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