Hello, new to the Virus world, and I'm having an odd problem. I have managed to get my TI setup working in ableton, no real issues or problems, great. However - I am getting really bad midi jitter when using the virus with midi via the actual midi connection. The jitter is bad enough that it can almost sound like a sloppy swing setting, very noticeable and essentially makes the virus unusable without using TI.
My test setup is simply 16th notes at 120 bpm being output from a cirklon sequencer. I have turned off all extra data (midi clock etc...). The virus has its own dedicated port with nothing else connected. No swing, velocity at 100, all note lengths at 24 ppq. This should be about the most stable midi anyone could ask for. If I swap the virus for another synth and use the same midi connection, the other synth plays perfectly in time.
The weird thing is that if I use an init patch, in mono mode, with a short amp envelope, the timing is fine. Doing anything that increases the voice count - poly mode, longer amp release times, unison mode etc... are what seem to influence the jitter. More voices = worse timing. I understand that more voices will obviously effect voice stealing etc... but it shouldn't produce sloppy timing.
Also - I can make these same changes to a sound when it is being used in TI mode and the timing stays tight. The more voices = more jitter only happens when using the virus via the midi in jack.
I have some experience doing hardware design, and a bit of experience working on projects with midi, and I can't imagine that this is a physical fault in my unit. The midi data is getting to the processor and is being processed - it just seems to have a lower priority than it should.
Does anyone out there have any ideas of what could be causing this? I couldn't find any other mentions of this issue anywhere, and with the amount of viruses out in the world, I would think it would have been noticed by someone else. I'm on OS 5.1.7 BTW.
Any thoughts on this would be appreciated.