Help diagnosing a patch issue, maybe a bug?
I've found a really weird issue with this patch I'm working on. Its a wavetable/fm poly synth, also including feedback routings and a supersaw.
The issue I'm facing is that the audio isn't consistent across all voices polyphonically. It's really weird.
If you load the attached patch you'll notice that the sound wavers every 8 steps. Here are the things I've noticed that seem really odd:
- If you remove the supersaw section (in layer 2) the patch will sound the same. but if you then save and reload the wavering stops
- If you delete BOTH the supersaw and feedback routing in the from the main mixer "Mixer" (layer 3), the wavering stops. Even though they are both already at min volume. If you only delete one of the two, nothing happens.
- If you delete Main Fbck from WT FM Sources (sources for the wavetables fm, layer 1) the wavering stops immediately, even though the mix is already at zero.
This feels buggy to me, but I've had other experiences in the past where I've though there is a bug but its just me not understanding polyphony. I appreciate any help y'all can give, I've tried to remove as much of the patch as I can but its still somewhat complicated.
Comments
The falling saw sound seems to come from what u do we scale here
if I turn scale down the falling saw thing stops
Is that what u meant?
My guess is that the Linear Freq Modulator in the "Wt1" path does not process polyphony correctly @giku.
Thanks for looking at this lala. Yea, that's the fm modulation of my wavetable. I want that routing to work, but I'd expect it to be consistent each note I play.
That would definitely jive with my experience. Thanks for looking at this rs2000
edit: its still a bit weird though because removing the supersaw section (that isn't playing in the patch currently) seems to impact it. But maybe something under the hood...
To be more specific, problems only seem to appear when the MOD input of the Lin Freq Mod is connected.