In Pure Data / MAX/MSP etc. there's are objects that can take in an audio signal and output a control signal with the frequency. (So you can whistle a tune into the mic and have a synth play it.)

Are there any VST plugins that do something similar? For use in, say, FL Studio?

I see plenty of spectrum analyser plugins for visualizing frequencies. But any that turn them into control signals?

  • 1
    I once programmed something like that in SynthMaker, but never really make it a proper plugin. Would that be any use to you? Commented Jun 25, 2015 at 23:12
  • Good question. You could probably build something capable of doing this in Reaktor.
    – n00dles
    Commented Jun 26, 2015 at 0:06
  • @leftaroundabout That's really cool. Yeah, if it's available to download somewhere, I'd love to have a play. I haven't really looked into Flowstone. And I didn't realize you could write your own scripts. Awesome!
    – interstar
    Commented Jun 26, 2015 at 1:25
  • @leftaroundabout It would be really interesting to see if it works with a more complicated wave, like a whistle.
    – n00dles
    Commented Jun 26, 2015 at 13:18

1 Answer 1


Audio To Midi - Free plugin by Mind The Pressure. Translates audio to midi signal directly so it can be hooked up with any virtual instrument (direct download)

WIDI Audio to MIDI - Not free. Somewhat similar to the above, but it has some stability problems.


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