Hi!

Do you change your audio buffer size while a project is open? Are any other apps running when this happens?
I'm currently trying to consistently reproduce this issue, but this one is a little hard to track down.

Many thanks for your feedback!

Best, Ben

Hi Ben,

No, I never change the audio buffer size when the project is running. But I have tired to change it before opening a project to see if it (RME UFX, 512,1024,2048)would fix the dropouts but it does not help.

As for other software running. All of the instruments are running through MIR, in Cubase I use the VST plugin and in VEP 7 I use the VSL built in plugin. In the synchron player I bypass all of the impulse responses. I believe for the synchronized dimension strings I load the last preset (default) in the synchron player that has all of the impulse responses bypassed

I have also tried changing the buffer sizes in MIR all the way up to 8192 and still get dropouts.

Also the problem happens much more frequently in Cubase than VEP 7. 

Dave

HI ben,

While working in VEP 7 today I also found another strange bug. If you have all of the violins

loaded for dimension violins 1 through 8 in synchron player, and then go to options>preferences>then close, in VEP 7 the first 2 violins in the synchron player get their solo buttons turned on in the mixer page.

This also happens for the second violins, violas, chelli and bases.

Dave

Hello,

I have this same recurrent issue too with VE Pro 7 and Cubase 10.5.
I am using a MacBook Pro 15" mid 2018 and I noticed that if I close the lid and come back after several minutes, the issue pops up.

It is related to ALL of VSL Synchron and Synchronized libraries and with random articulations.
It is very annoying to keep closing and reopening the project all over again.
I never change the audio buffer size on Cubase during editing and the only opened apps are VE Pro 7 and Cubase, nothing else.

Please help us resolving this issue.

Many thanks in advance

I too have this exact problem.  I have an open case with VSL but I haven't heard anything in over a week on the status.

@cgernaey said:

I too have this exact problem.  I have an open case with VSL but I haven't heard anything in over a week on the status.

We are currently investigating this problem. If anyone finds a way to reproduce this consistently, please let us know; this will help us to fix this issue faster.

Just to add some hopefully useful info for VSL it happens in Nuendo 10, Cubase 10.5 and Studio One 4.6 so it has nothing to do with "DAW Specific".

The fact is that I can reproduce it 100% of the time.  All I have to do is use Synchron and VI Pro for a while and it starts happening.  I will be sitting here working and suddenly go, that's odd, what's happening to my Solo Flute?  Sure enough, I open up the player and I am getting the red alert that it's having an issue and dropping my notes.

I have 10 separate NVMe SSD drives with every section on their own.  I have my preload buffer settings at 32768 maximum and still this happens with 1 single instance of a single note VSL flute, or VSL Guitar playing.  I don't even have to hit playback.  I can just hit the note on the midi keyboard or hit the note with my mouse inside the VSL player and it goes red and drops every note I play.  Once it starts happening for 1 instrument it starts happening for every and all instruments that are VSL regardless of what drive they are on.  I can still however play all of my other instruments that are not VSL perfectly without any issues.

I reboot, open VE Pro, Studio One and 20 minutes later I am up and able to start again.  Repeat every day since the last major update when the big bang brass came out.  I have to reboot at least 2-4 times a day with this issue and that's sometimes when only working a few hours.

I just noticed when I opened my project there's new versions of the Software.  The only one I don't see an update for is VE Pro 7.

I am going to update them all and see if it helps.  I will post here and in my ticket if there's any improvements.

Thanks

Hi cgernaey,

I updated and it did not fix the problem.

Dave

Hi,

Am I right that we all use RME audio interfaces?
If so, could you please send me your RME interface settings, and do you use the WDM Device feature?
And please reportif the option "Enable MMCSS for ASIO" is enabled or not in the "About" tab of the interface settings. (feel free to just screenshot the settings and attach them here or send them to us via support@vsl.co.at with the note "To Ben").
Also please add the exact Windows version (for example: Windows 10 1903, 18362), as well as the current RAM usage when these dropouts occure (example 12.5GB / 16GB).

I encountered this issue once as well, but after system reboot I was no longer eble to reproduce it to this day, which makes it hard to find and fix the issue.

Many thanks, Ben

@DaveJ said:

 

Hi cgernaey,

I updated and it did not fix the problem.

Dave

Hi Dave,

I updated and it still happens as well.  I will gather the requested info Ben is asking for.  By the way yes I do have an RME-Audio interface.

Thanks

Many thanks! Could you try to enable MMCSS in the options and then reboot the computer?

Does this improve the situation?

I sure can.  I will update if and when it starts happening again.

FYI Ben, this issue happens without VE Pro in the mix as well.  Just using it as a standalone track inside any DAW it performs the same way so the remaining issues of VE Pro I believe are completely separate from this VI Pro and Synchron Player issue.

Thanks!

Thanks you all for the information you provide, as well as for your patience.
It is a really strange issue, and hard to track down on just one system.

Ben,

I am getting pops and clicks since turning it on.  These are true pops and clicks as if you were overloading the system or had a really low buffer type pops and clicks.  I was not seeing the red streaming warning indicator like I do with our current issue.  It was just pops and clicks, even if I just did a simple 2 note trill with the flute.  I turned it off and they all went away.  I wonder if that's because I have 32 cores in my machine.  For now I have the setting off again as I can't even play the song or use any instrument without pops and clicks with it on.

During the pops and clicks I went into my Solo Flute Synchron Player and the power button for the velocity xfade slider was blinking red.  When I hit it, it turned off and then I turned it on again and it went blue.  First time I ever seen that.

**I have added more of my system configuration in my signature incase we have hardware similarities as well.**

Thanks

Hi cgernaey,

I tried Ben's suggestion about enabling MMCSS but still had the same problem. I almost gave up for the night but then decided to uninstall (control panel, uninstall a program ) the RME drivers and software. I rebooted then reinstalled the RME driver then rebooted again.

It seems to be working much better now. It is to early to tell if the issue is gone but I playback looped a large template in VEP 7 for an hour and a half and came back and there was no hard drive flashing symbol.

Would be interested to see if you tried the same thing if your problem would improve. Just make sure to sort the uninstall list by Publisher to get everything by RME.

I am going to try Cubase 10.5 tomorrow and will let you know the results. Still to early to tell but maybe windows update messed with the driver somehow.

Dave

Hi cgernaey,

Too many cores could lead to issues in previous Windows and Cubase version, which should mostly be fixed by now.
You could try to disable SMT (Simultaneous Multithreading, can be disabled in the BIOS; on Intel CPUs it's called Hyperthreading) which lowers performance a little bit, but often solves many audio issues.

It's really strange too hear that enabling MMCSS leads to pops and clicks, because this feature should improve exactly these issues. So I would also test the combination of disabled SMT and enabled MMCS.

I would also give Dave's advice with uninstalling, rebooting and re-installing all RME drivers a try.

Best, Ben