I have what I suspect is a very bad internal midi jitter problem which is actually causing several of my apps to bomb, I'm blaming my cheap e-mu 0404 sound card but I can't be sure the apps are bombing due to midi problems. they show all the signs of suffering from some kind of midi feedback interference, namely midi triggered functions within the apps become un stable sometimes freezing, midi yoke in out ports sometimes will not de select etc.
The apps I'm running are used for live video work and are sequenced from a Daw, the images are projected on to very large screens and the slightest amount of jitter becomes obvious instantly. an image that is displaced by midi jitter by as little as just a few pixels results in very large jumps by the images across the screens. I've tried filtering out all the un necessary midi information being sent between the apps which made some improvements to their stability but the end result is these apps are still bombing after only 20 mins or so.
So, I need advice on which sound card might best solve this problem, I've been looking at the RME cards in particular the new HDSPe AIO but I've heard bad things about their DA AD converters not being very hi speck, I need hi speck audio in out, I use Event TR8's for monitoring my AV compositions they cost me a lot and I don't want to waist money on a card that doesn't match up to their (or my) standards.
One thing that's confusion me is this the e-mu 0404 and the e-mu 1616 both claim to have extreemly low jitter and state: Ultra-low jitter clock subsystem: < 1ns in PLL mode (44.1kHz, Opt. S/PDIF Sync. Does that mean that they have only 1 nano seconds jitter? because the midi on my system is all over the place!
The RME cards also state something similar: Super low jitter design: < 1 ns in all clock modes. Am I really going to notice any difference between the two? Please can anyone clarify this for me, I don't want to have blown £450 on an RME if it's not going to have been worth it.
The midi only needs to be stable between the apps that are on the PC, there is no external midi being sent, I use midiyoke midi-ox and loppbe to route the midi between them, however it's here that I'm running in to a lack of information on the forums and net in general, everybody seems to know about midi travelling between various hardware synths and other bits of kit but there's not much info about problems concerning midi travelling between apps on the same PC.