I tried to recreate the sound from this tutorial here

(1:58). It's essentially a Sawtooth with 16 voices, somehow detuned and spread out in stereo, done in Serum.

Doing this in Synthmaster I don't quite get the same result. Instead there is a high pitched "flanging" sound sitting on top:

Here is a sustained example:

You can hear a sharp squeal and then iterates through overtones somehow.

This is how the relevant parameters look like in Synthmaster:

enter image description here

What is this "extra sound" and how can I get rid of it?

  • Sounds like you have a resonant filter closing down in the release phase; but as I don't know either piece of software I have no clue where you'd find it.
    – Tetsujin
    Oct 8, 2022 at 17:39
  • @Tetsujin It's not about the release. I added a sustained example. You can hear it right from the start. Oct 8, 2022 at 18:02
  • Then it's in the decay too & the filter envelope is not tied to the amplitude envelope.
    – Tetsujin
    Oct 8, 2022 at 18:03
  • @Tetsujin I understand what you mean now. Can't find anything of the sorts though. Oct 8, 2022 at 18:13
  • 1
    See kv331audio.com/synthmaster/downloads/synthmasterusermanual.pdf I've never used it, so I've not a clue where anything is in it.
    – Tetsujin
    Oct 8, 2022 at 18:30

1 Answer 1


enter image description here

You need to turn on "FREE" (like in this picture). From the manual:

Free: Controls whether the oscillator waveform(s) start at a random phase, similar to free-running analog synthesizer oscillators. This is especially useful when voices parameter is increased to create “SuperSaw” type sounds.

So the issue here is that all 16 voices had the same phase, which together with the detune created this flanging sound.

  • Glad you figured it. I hadn't considered phasing/flanging due to identical waveforms all starting in the same place with different speeds.
    – Tetsujin
    Oct 9, 2022 at 18:58

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