Jamstix3 audio dropouts when using 2 instances

Post by **Ralph @ Rayzoon** » Fri Jun 05, 2015 11:36 am

Click START on Windows task bar and enter this in the search box:

taskmgr

you should see a popup for 'taskmgr.exe'. Right-click on it and choose 'Run As Administrator'

timo_75 · Post by **timo_75** » Sat Jun 13, 2015 8:19 pm

I just tried that. Unfortunately the problem persists.

Post by **Ralph @ Rayzoon** » Sun Jun 14, 2015 10:44 am

Can you start Ableton Live as administrator via right-click?

timo_75 · Post by **timo_75** » Sun Jun 14, 2015 11:46 am

I'm using Studio One. I can start that as Admin, yes.

Post by **Ralph @ Rayzoon** » Sun Jun 14, 2015 3:45 pm

If you start Studio One as admin, can you still not adjust thread priority of jamstix.exe in task manager?

timo_75 · Post by **timo_75** » Sun Jun 14, 2015 5:51 pm

Oh, I think you misunderstood me: Adjusting the thread priority worked, but the CPU spikes are still there.

I started a fresh project for teting purposes: 1st instance of Jamstix works fine (low cpu usage.

As as soon as I start a second instance, the CPU usage (accorind to Studio One's CPU meter) of the 1st instance runs crazily high, the second one is rather low with spikes every few seconds.

Dali_S · Post by **Dali_S** » Mon Jun 15, 2015 3:54 pm

I'll try to get 2 instances of Jamstix with REAPER tonight to see if it's host-related...

Will keep you informed.

Dali_S · Post by **Dali_S** » Wed Jun 17, 2015 4:09 pm

Small report.

I have quite a decent Win 8.1 I7 8-core PC with 16 GB of RAM and using Reaper I also got drops using 2 instances of JS.

I created a new project in Reaper, my latency was at 2.9ms using ASIO.
Added new virtual instrument JS in drum mode only using 8 tracks.
Added a second JS instance this time JamCussion-only and created 8 additional tracks.

While playing with nothing else (no other VST, no audio) my CPU at most hit 6% and memory used was under 3 GB. Stil,l I had sound drops.

I didn't had internet and didn't remember the suggestions from Ralph so I will try again with those tonight or tomorrow night.

Dali

Post by **Ralph @ Rayzoon** » Mon Jun 22, 2015 1:17 pm

Dali,
Try adjusting priority in task manager for 'jamstix.exe' to High. If that does not fix it, please send me rzdlog.txt from Documents\Jamstix3.