Noise Burst after instantiation of PlugIn in Logic

[sewastl]

After a cryptic mail of a user I tried to recreate the problem.

I am still not sure what triggers the noise burst, but I have been able to do a screencapture of it.

Step1: open Logic
Step2: change audio interface
Step3: change audio interface again to internal Soundcard of MacBook Air M3, 2024.
Step4: create new track
Step5: instantiate StereoCreator3 (in 2 channel mode)
Step6: drag and drop audio content into the track
Step7: hit play -> a noise burst of ~0,5 sec with >+70dB is the output of this track
after the noise you can here the expected audio content

@yetyetanotherusername maybe we can have a short chat about that?

sc3.noise.burst.mov

[yetyetanotherusername]

I've found a possible issue with the overall gains being uninitialized, which would lead to undefined behavior. I can fix this but since I have been unable to reproduce the issue so far, I can't really test if this fixes the issue.

[sewastl]

I will try to find a way to reproduce the bug with higher probability.
Detailed description of the steps for the unexpected behavior in the screencapture above is now included.

[sewastl]

After trying to push it I discovered some things, but nothing helpful.

1. the initialization of the internal Soundcard of my MacBookAir M3 2024 is sometimes faulty and produces crackles.
2. this can crash other plugins, too. it distroyed for example the loading of the GUI of ValhallaRoom and StereoCreator.
3. the noise burst can be a lot shorter, too. See attached screencapture. (at the end)
4. we cannot be sure if this is a bug from stereo creator only, or it is a bug from MacBookAir hardware, or if it is happening on every plugin as it is nearly impossible to reproduce the bug reliably

https://dpamicrophones.sharepoint.com/:v:/s/External/IQCzp5dwzgjRTZ_3GPdsbiHrAcOEEavI6lrvafqNOPV1xwI?e=gUhNwm
PW: sc3

[sewastl]

We need to wait for a detailed answer of the user. I do not see a good chance to find a way to reproduce the bug reliably.

[sewastl]

I've found a possible issue with the overall gains being uninitialized, which would lead to undefined behavior. I can fix this but since I have been unable to reproduce the issue so far, I can't really test if this fixes the issue.

I will test it a lot. Let's see.

[yetyetanotherusername]

Should (hopefully) be fixed in v3.0.1