MusE has probs loading synths, saving sliders

[Tutorius]

Hi,
i am not sure if the pacman-update of my archlinux loaded a new version, but thats possible...

I have problems loading a song again, the synths (surge-synths, but also MDA-E-Piano and Odin2 had problems) create noise, the edit-state of the surge-patch is changed to "changed/edited", other settings were not saved or loaded.
The sliders inside the mixer (especialy the sliders of group-tracks) were not saved and were reset to the zero-position, not all in the first try, and all sliders in the second try...

You can watch this behaviour on my newly created Youtube-video

https://www.youtube.com/watch?v=ASH_q2GlAuA

Any hints? can i cahnge something to "surf around this problem"?

Thanks a lot for your work

[Impostor]

Hi,
i am not sure if the pacman-update of my archlinux loaded a new version, but thats possible...

Then just rebuild and reinstall MusE from git, see if that solves your problems. There's been a few changes, and fixes, to parameter handling. Maybe your arch version falls in between the changes and the fixes.

Edit: or use the latest appimage.

[Tim E. Real]

Hm, that sounds messed up.

I will wait to see if you can build the latest github master...
There is also the daily AppImage available.

[Tutorius]

An Appimage is a good solution for me to stop Archlinux from overwriting my installations...

[Tutorius]

I have checked this with the latest App-Image. It does exactly the same...

I have uploaded the small file to fastupload.io, the link is

https://fastupload.io/en/GVY7lJ2kB8Puws ... e=download

Password is "tutorius"

Hm, that sounds messed up.

I will wait to see if you can build the latest github master...
There is also the daily AppImage available.

[Impostor]

I couldn't download Tutorius' file, but I can reproduce the problem with Surge lv2. Notice the "release" slider change position after reloading:
(Preset is Altenberg-Basses-Neuro)

[Impostor]

Preset Dan Mauer-Pads-Drone Bee:

[Impostor]

And it's not just Surge. With Pianoteq 7 lv2, with preset Vibraphone V-M bright, the dynamics slider changes position (from 60dB to 40dB) on reloading. (Pianoteq 8 lv2 seems unaffected though.)

(And changing all my system's locale settings to EN_US doesn't fix it)

[Impostor]

Trying to find out if vst's are also affected.

With OB-Xd vst, the number of voices tends to change on reloading (was 8, becomes 9 with preset Modern Horns OB-Xa).

[Impostor]

So, this dynamics slider changing from 60dB to 40 dB with Pianoteq 7 lv2 preset Vibraphone V-M Bright, also happens with the appimage from april 2022 and also with the 4.0 appimage from 2021! And it's not only the dynamics slider. Various effect sliders are changing too.

Likewise with the Surge presets being modified on loading. How hasn't this been noticed before?

[Tutorius]

So, this dynamics slider changing from 60dB to 40 dB with Pianoteq 7 lv2 preset Vibraphone V-M Bright, also happens with the appimage from april 2022 and also with the 4.0 appimage from 2021!

Likewise with the Surge presets being modified on loading. How hasn't this been noticed before?

I think this thing is the reason for the Surge-Plugin to begin noising and to change from "unedited" to "edited"...
Can you check this for the slider-values of Audio-Group-tracks?
As i see it, the volume-sliders of Odon2-synth, MDA-E-Piano, Drum-Gizmo are not affected, the volume-slider of surge is affected.

[Impostor]

Can you check this for the slider-values of Audio-Group-tracks?

I don't seem to have any issues with the mixer settings. Curious.

[Impostor]

There doesn't seem to be a (big) problem with VST synths (but I only tried a couple. The nr of voices of OB-Xd is the only serious one I've encountered). AB preset-comparing with Pianoteq 7 VST does report a list of changed parameters, but when I look at their actual values, I don't see any difference between them.

Maybe LV2 effects are also affected, but I only tend to use Calf effects. I don't think they even have presets accessible from within a DAW.

[Impostor]

@rncbc @Tim E. Real
By the way, Qtractor has exactly the same problem. Both with Surge and with Pianoteq 7 lv2's. Reloading project with presets result in the exact same slider changes....And also with the nr of voices of OBX-d VST...

[Impostor]

Think I found the cause with Pianoteq:

With Pianoteq 7 LV2 it's an issue with its two-presets-in-memory state. If I create a fresh pianoteq track and load a preset, it activates the instrument in memory slot A. Saving and reloading somehow activates that instrument in slot B, but with different (default?) parameters. The correct parameter values and instrument are still present in memory slot A. So on loading a project, memory slot A should be made active, not slot B.

So that's probably a Pianoteq bug. Since this issue does not occur with Pianoteq 8 afaik, they've already fixed it.

What happens with Surge though? I don't think it has* an A/B preset feature like Pianoteq...

EDIT: Yes it does: Surge also has an A/B feature! Although the correct parameters are not found under either "scene"...both scenes are incorrectly loaded.