Ardour Crashing on Start-up, Suspect Decent Sampler

Ardour is crashing when I try to load my current project. It was working on Friday. Other projects are loading just fine. The only difference I can think of is that I have two tracks with Decent Sampler in the project. I had already finished creating the music for the first one and it was working. Then, I added a second one right before I quit that day. Nothing seemed wrong at the time, but when I tried to reload my project today, Ardour goes through the whole process of loading and comes up with my project, then immediately crashes. I am looking at needing to restart my project if I can’t solve this.

Operating System: Ubuntu Studio 25.04
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.3
Kernel Version: 6.14.0-29-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 Ɨ IntelĀ® Coreā„¢ i7-7700K CPU @ 4.20GHz
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 950
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: H110M-A

Thanks!

You can determine if it is a plugin causing the crash by starting Ardour in safe mode, which will disable all plugins when loading.

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Oh, thank you! That is exactly the help I needed. It loaded just fine in safe mode. Whew! Now at least my work hasn’t been lost.

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By the way, I was recently looking for a sampler, and I was quite annoyed that Decent Sampler was trying to force me to make some ā€˜free’ account to use it. -___-

So I ditched it completely and found and went with this instead: the TX16Wx Software Sampler

All is good so far.
It’s a bit complicated to navigate at first…
But it works well!

:+1: :v:

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Just yesterday while beta-testing Mixbus 11.1, I found that it would load a project with decent sampler on one track, but the plugin GUI would open with default pale background but otherwise unpopulated. I updated decent sampler to the latest version and then it worked again.

I also am annoyed by the need to create an account there, but IMO that’s still more ā€œlibreā€ and gives you access to a whole bunch of nice gratis multisample sounds, and with the ability to create and share your own, in the end I much prefer that, compared to the TX16Wx distribution model.

just my 2 cents, of course…

Not sure how it stacks up, but there’s also LSP Sampler

https://lsp-plug.in/?page=manuals&section=sampler_stereo

Cheers,

Keith

Decent Sampler format is sfz with the opcodes changed, less audio capability and some GUI opcodes and access to the poor plugins in decent sampler.

You can open decent sampler files with sfizz or you can try convertwithmoss The Site Of Jürgen Moßgraber - Software - ConvertWithMoss: Multi-sample Converter to change formats to sfz.

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I ended up using sfizz with virtual playing orchestra, as UNFA recommends, because I was mostly needing a violin and cello. It turned out pretty good for free MIDI instruments. I did use Decent Sampler for a pad and some effects. The organic orchestra in DS is pretty cool! I created the MIDI track for them using DS, then exported and imported them as an audio file so that I could delete the DS plugin from my project. If I have more than one DS plugin active, it crashes Ardour on start-up.

I had seen a bug like that, but hadn’t tried to reproduce it until just now. Reported here:
https://www.decentsamples.com/bugtracker/view.php?id=258

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