[Solved] Jittering midi notes (notes off grid)

[terkdawn]

I’m having some issues with my Virus TI2 desktop where notes seem to «jitter» (notes are off its grid) and I cannot figure out where the problem occurs. First setup so you get an idea of that:


Macbook Pro M1
FL Studio
Motu 828 (2024) soundcard
Midi from soundcard to outboard gear
Analog out from outboard gear to inputs on soundcard
Hardware synths: Virus TI2, Waldorf Blofeld, Novation Mininova
Virus is running in «single mode»
Buffer size: 128 samples
48 khz


If I for example send a 16-note midi pattern at for example 138 BPM in FL Studio to the Blofeld and the Mininova, I do not get any jittering notes. The Virus, however, jitters noticably. I will provide an audio example tonight to demonstrate the issue.

Any idea to what may be causing this, or where I should start to troubleshoot? Could it be daw-settings, settings on the virus, should battery be changed…? Appreciate any insight or ideas that may help me figure this out!

[terkdawn]

Ok so after asking around in several other forums, someone suggested that the jitter happens due to Access adding "too much" to the latest firmware. He stated the latest firmware that he had was 5.1.3.00 and did not intend to upgrade due to this fact. I tried to downgrade and, lo and behold, notes are now on grid on par with the other hardware gear I have.

So if anyone struggles with midi jitter / notes off grid with their Virus TI2, try downgrading to 5.1.3.00!