I'm having problems with a strange distortion sound a patch of mine is making, perhaps related to FFT processing.

The patch uses a preset system to change between settings. The system will mute the input to FFT objects during preset changes to avoid audio issues. However, when the preset changes I'm often getting a sort of distortion, which strangely clears up if I add & delete an object.

I've demonstrated it here:

My DAW is looping audio which is sent to PD for processing. The loop is on top of a preset change to demonstrate the issue.

Any clues as to what this could be?

@bklindgren what version of pd is it?
might be the similar to https://github.com/pure-data/pure-data/issues/2136 (which should be fixed now)

thx for the response @seb-harmonik.ar . I've just fixed it. In short I had a few layers of switches nested within various subpatches. I realized that turning on/off the lowest layered switch was redundant, and it seems to be fine now.

It sounds (sonically) like it may be related to the issue you posted. I'm PD 0.55-0. thanks again!

Theoretically, I'm still not sure why it was causing that issue, But regardless, I'm happy it's fixed