Decent Sampler closes Ardour instantly

Woooaaah I didn’t know it was possible, thank you so much. You saved me a lot of frustration.

Hello everyone, I’m starting to use ardour 8.6.0, although I’m still using 8.2.0 until I finish some projects that are very advanced in that version.

My system is ubuntunstudio 22.04lts

At the moment I have found problems with decentsampler in ardour 8.6.0, specifically only the following versions of decentsampler work for me:

Decensampler 1.9.4 (which is the version I use in ardour 8.2.0)
Decensampler 1.9.17
Decemsampler 1.10.0
Decemsampler 1.11.0

At the moment I have left version 1.9.4 and 1.11.0, and if I’m not mistaken they are the dynamic versions.

But these versions take a long time to open the browser between 15 and 30 or 40 seconds until you can select the instrument you want, this is a problem that slows down a lot.

Versions above 1.11.0 seem to not work with ardour 8.6.0, at least in my case ardour crashes unexpectedly.

I always download Ardour from Download Ardour | Ardour Community.

I don’t know if this information is helpful to anyone who uses decensampler, but I leave it here.

greetings.

Thank you for all the responses / testing.
I also tried this recently and both the static & dynamic versions still do not work.
Little unclear, is this an Ardour issue or a DS issue?
Does anyone know if the DS developer responded to the bug report?
Has been about 2 months now, so was just curious if anyone has at least been able to narrow down the cause of the issue.

Thank You

I tried to go to the link Paul mentioned above about filing bug report with Decent Sampler but it appears you need a MantisBT account to view it.
Does anyone with such an account see any activity with the bug report?
Wonder if the DS developer responded to the report at all?

Thank You

David has not responded so far.

Paul
Ahh that is unfortunate, thank you Paul for looking this up for me.

Paul, Robin, Any other users interested
I tested out DS 1.11.17 Static VST3 in Carla & Qtractor and it works in both.
Is this memory error just specifically how DS interacts with Ardour?

Thank You

EDIT:
Strange I just tried the following plugin that was mentioned on this forum

and noticed that it does the same thing as Decent Sampler where it closes Ardour instantly. Not sure if the issues are in any way related?
Do any of the users experiencing this issue with DS experience the same issue when trying this Ratatouille plugin? Probably not related but if anyone is willing to give this a try.

I cannot update my post above but I noticed a couple things.
Doing more testing of this in Carla & Qtractor.
As mentioned the other day they both worked, but this is not always the case.
Now I am noticing that when DS is added in these programs they close as Ardour does.
Only sometimes does DS load up without closing them.
Sometime after DS loads up if you open up the GUI window the second time then it closes the application.

Strange that an issue that prevents the plugin from working entirely on Linux would not be addressed by now?

Also kind of strange that the best instrument format plugin available for Linux is a closed source proprietary plugin, so no one else can offer a fix.

Anyways, just thought I would point out that my above reply tests results are not always correct and that more often than not DS closes other Linux based applications as well when inserted. As Paul mentioned it appears to be a “memory management problem” which I believe that I have confirmed is not specific to DS interaction with Ardour itself, but all Linux applications.

Thank You

decentsampler 1.11.18 in ardour 8.6.0 works for me

Hi everyone, I’ve tried the latest version of decentsampler, specifically 1.11.18. I can’t tell if it’s a static or dynamic version, because in ardour I can only find out the folder where a specific plugin is installed in the plugin manager, however in the plugin selector, the source folder of the plugin is not visible.

I have installed the 2 versions of decentsampler, static and dynamic, in separate folders, independent of each other and independent of the .vst3 folder in home.

That is to say, one is called vst3 decensamplerdinamic and the other vst3decentsamperstatic, independent of the .vst3 folder that exists in home.

I do this to be able to test several versions of this plugin, because even if you install different versions, the files that make up the plugin are all called the same (decensampler) regardless of whether they are different versions.

Perhaps I would suggest, to facilitate the solution of possible problems with plugins that may arise, as is the case with decentsampler, that in the plugin selector the source folder of the plugin that we want to choose is displayed, just as it happens in the plugin manager (where the folder where the plugin is installed is displayed).

The problem that prevents me from knowing which of the 2 versions works is that the order in which decentsampler appears in the plugin manager is not the same order as the one it appears in the plugin selector, so it is not possible to be sure which of the versions is the one I am looking for.

Specific suggestion–>> that the plugin’s installed folder be visible in the plugin selector.

Currently, the plugin’s installed folder can only be seen in the plugin manager, but not in the plugin selector.

I hope I’ve made myself clear, regards.

Neither new versions (static or dynamic) work for me.

Same here, but with a workaround.
If I create a MIDI track without a plugin (i.e. I select “-none-” in the Instrument dropdown) and then add DS, it works.

If I select DS within the Add Track/Bus/VCA dialog or if try to replace a plugin in an existing track, it crashes.

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There’s a new version of DecentSampler .(1.12.6) … I tested the statically built VST3 here and it worked without any issues.

I can no longer login to the DS bug tracker so it would be great if someone else could confirm the fix and then let Dave Hilowitz know.

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Hi Paul, I’ve let David dhilowitz know on bug tracker that at least in my case both work.

I’ve tried both versions

Decent Sampler v1.12.6 Linux (x86_64 - Static build)
Decent Sampler v1.12.6 Linux (x86_64 - Dynamic build)

on Ardour 8.10.0 “Sonora Portraits”(rev 8.10)
and both work without any apparent problem, on my system
which is the following:

Operating System: Ubuntu Studio 24.04
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.8.0-49-lowlatency (64-bit)
Graphics Platform: X11

Regards

Any plugin which loads dynamic libraries is just waiting for trouble. If you use pre-built Ardour (rather than distribution version) eventually the distribution library version and Ardour library version will differ and you can get crashes again. If you always use the distribution build of Ardour then presumably that isn’t a problem because the distribution Ardour and the plugin will both be using the distribution library.

Hi Chris ccaudle, I’m not a programmer, but I’ve read something about it in previous versions of both Ardour and decentsampler, and I’ll follow your recommendation to use the static version, since Paul has commented that he has tried the static version and hasn’t commented anything about the dynamic version, I understand that it’s better to use the static one.

Since decentsampler has been giving problems lately, I’ve been testing it as both Ardour and decentsampler were updated and that’s the reason for having several versions of decentsampler installed, but if the “correct” and stable thing to do is to use the static one, I’ll do so.

That might explain some of the instability “crashes” of ardour in projects made with previous versions of both Ardour and the sampler.

In short, one version that works well is enough.

greetings

I am writing you to report a current problem with my Linux based music making setup: Ubuntu Studio (26.04), Ardour (9.7.0) and DecentSampler (1.23.5). Nothing new under the sun since there has been similar issues over the years but this is what I have experienced during this week:

Ardour crashes instantly every time I start to open an old project including DecentSampler tracks or working with a new Ardour project when adding DS track there. My other Ardour projects without DS work perfectly well so I am pretty sure this issue is somehow related to DS. I have also tried both static and dynamic version but the problem remains the same… Any other users can confirm this?

I just send an email about this topic to DecentSampler but I though you might want to know about this case here in Ardour forum as well.

Thanks to your request (I’d been wanting to do this for a while), I installed DecentSampler 1.23.5, loaded a string library onto the MIDI track, and played it back; everything is working as it should. However, I’m running everything on AVLinux.
Maybe it’s because of Ubuntu?!

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1.18.1 Decent Sampler
9.7.113 Ardour
UbuntuStudio 26.10
All Stable with 5 instances of Decent Sampler in session. 5 tracks with different sample sets.

upgraded to 1.23.5 Decent Sampler

All stable with multiple tracks of Decent sampler with different sample sets loaded.
Also 1.18.1 Decent Sampler stable on Debian 13 and AVLinux 23.1.

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Hello, decentsampler is a bit temperamental software, it usually gives problems when you open the brouser, searching for libraries sometimes at the beginning of putting it on a track can cause ardour to close, sometimes.

I have been using decensampler since almost its first version and sometimes it has caused problems, now I have version 1.23.5, and it works in both Ardour 9.5.0 and 9.7.0 (since I am transferring some projects from one version to the other).

When you have problems with decent, it is best to contact the developer Dave Hilowitz (Contact - decent|SAMPLES), he is also on patreon https://www.patreon.com/messages/2382136-118226605?mode=user&tab=direct-messages.

Page with all versions of decentsampler: https://store.decentsamples.com/downloads/decent-sampler/versions

A problem that I pointed out to Dave Hilowitz is that all versions are called the same (DecentSampler.so), regardless of the version, that is why when installing a new version of decensamplar it will tell you that you already had one installed and that if you want to install the new one, the old one will be overwritten…

If you want to have more than one different version of decentsampler installed, because for example you have old projects that used a previous version of decentsampler, what you have to do is the following:

Create a folder separate from the one that ardour, reaper or other DAWS use, only to decensamplar and in it each version that you download, in its own folder that has the name and version number and it is those folders that from ardour you must add as a plugins folder apart from the ones that ardour looks for by default.

That way you can use several versions of decentsampler at the same time.

In any case, it is advisable to finish a project in the version you created it, before moving it to a new version of ardour.

If you still want to transfer a project created in one version of Ardour to another more modern version, it can be done with some precautions.

1.Check and note the plugin versions of the project you want to move from a new ardour.

2.Make sure that both versions of ardour are using the same plugin folders.

3.Try to use different folders/directories for each version of ardour.

4.Open in (for example ardour 9.7.0)(the project created for example in ardour 9.5.0) and save it from ardour 9.7.0 in the ardour 9.7.0 directory and from then on you are working with a copy, without modifying what you already had, in case you need to recover something again.

  1. I recommend sticking to LTS versions if you use Ubuntustudio, but if you use intermediate versions and it works for you, there would be no need for the LTS version, I am on version 24.04 lts, ​​but I am waiting until from August it can be updated directly to 26.04 lts, ​​let’s see how it goes.

greetings

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