MuTools

sl23 · Post by **sl23** » Mon Apr 14, 2025 8:37 pm

I have found that this only crashes when Unison is NOT lit up.
Is it definitely a plugin bug or could it be fixable in MuLab?
This has such a vast and great library, it would be a shame to ditch it.
I'll contact the dev, if he's still available.

sl23 · Post by **sl23** » Mon Apr 14, 2025 9:30 pm

I sent a request, just have to wait and see, but I don't think it's likely to get fixed.

EvilDragon · Post by **EvilDragon** » Mon Apr 14, 2025 10:21 pm

Doesn't seem to crash in other hosts at all...

Contacting the Synth1 dev is futile, guy is a hermit.

MuTools · Post by **MuTools** » Mon Apr 14, 2025 10:42 pm

The crash is inside Synth1, deep inside its processReplacing.

EvilDragon · Post by **EvilDragon** » Mon Apr 14, 2025 10:57 pm

@sl23, what exactly are reproduction steps, here?

EDIT: I see it now.

sl23 · Post by **sl23** » Tue Apr 15, 2025 8:15 am

It crashes on playing more than one note when polyphony is on or unison off.

Ah well worth a try!

dellboy · Post by **dellboy** » Tue Apr 15, 2025 9:09 am

It must be a MuTools thing, it works fine in all my Daws.

h66 · Post by **h66** » Tue Apr 15, 2025 6:55 pm

FL Studio on PC is everything fine

syntonica · Post by **syntonica** » Tue Apr 29, 2025 9:01 am

The Mac version has always been one big bug. It sounds good when it works, though.

TorresBob88 · Post by **TorresBob88** » Tue Apr 29, 2025 8:01 pm

Did he ever release the source code?
Because he's not going to update it.

Be a dude, set it free.

EvilDragon · Post by **EvilDragon** » Tue Apr 29, 2025 11:46 pm

Nope, he did not.

EvilDragon · Post by **EvilDragon** » Wed May 28, 2025 10:40 am

dellboy wrote: Tue Apr 15, 2025 9:09 am It must be a MuTools thing, it works fine in all my Daws.

I have tried over a dozen other hosts and none of them have any of these issues with Synth1, so yes this points to something definitely being done differently/incorrectly/out of expected (and badly/not documented in VST2 SDK) order in MuLAB, unfortunately... I just wish I could figure out what exactly is different.

MuTools · Post by **MuTools** » Wed May 28, 2025 12:01 pm

The Roland VST3 plugs don't work in MuLab, while they do work in other hosts.
However it's formaly confirmed by Steinberg that the issue is on Roland's side.
Something anyone can double-check as the Roland plugins do not pass the VST3 validator.
Conclusion: The fact that a plug works in other hosts but not in MuLab does not prove the issue is in MuLab.

Zooming out from that: I wish i could get in contact with the Synth1 plug dev about this crash inside Synth1. I'm sure it could be solved very quickly as the issue is very repeatable. He just needs to repeat the issue in debug mode so he can see at what code line in Synth1 the crash occurs.

EvilDragon · Post by **EvilDragon** » Wed May 28, 2025 12:04 pm

I also wish we could receive any sort of reply from Toda-san, because we would have asked him to open source the synth, there so many things that could be done with it to bring it to 21st century... But it is increasingly unlikely to happen as the guy is completely unavailable. The most famous freeware synth out there can be considered abandonware now.

Also - is this really a crash? The plugin doesn't crash, it just stops producing audio in this particular case.

What could it possibly be that makes it work in ALL the other hosts just fine?

MuTools · Post by **MuTools** » Wed May 28, 2025 12:07 pm

From the last test i remember it's indeed a crash.
A crash deep inside the Synth1 code, like 10 functions deep, starting from processReplacing.
Only occurring in the 64 bit version when playing more than 1 polyphone.
IIRC.

MuTools

KVR Audio

Does anyone still use Synth1?