I was reading about a different issue, and the subject of "MIDI-Jitter" was brought up. As I'd never heard of it before (!) I Googled it, and found a couple interesting articles.
This one suggests that DP 8 is one of many hosts guilty of exhibiting Jitter and it looks very much like the kind of situation brought up by Prime Mover:
http://expressiveness.org/2012/12/04/MIDI-jitter
The author made these remarks concerning the test methodology
in this thread here.
I purposely [ED] left some details out to prevent the article from getting too long. Here are some answers:
1. Tests are perfectly reproducible, I ran them at lest three times for each host and the results were always exactly the same.
2. The behavior is totally consistent when using other VST or AudioUnit instruments.
3. I manually zoomed in to sample precision, snipped at the first non zero sample, zoomed back out and then used bar boundary snapping in the DAW to align the start of the snipped clip with the beginning of the bar.
4. The signal chain was exactly the same for each test, just switching out the final host/DAW. I performed the same tests to another box over Ethernet MIDI though and also using iConnectMIDI for MIDI over USB. The behavior is exactly the same.
Actually, the behavior has been confirmed by plugin developers for Logic (see the comments on my article). The MIDI sample offsets in Logic are not set when processing live MIDI, they are set when using the built in sequencer.
Sound-On-Sound magazine had an article on reducing MIDI timing problems, but I have not read it yet. They also admit their solutions will not work for everybody.
http://www.soundonsound.com/techniques/ ... g-problems
Here is the google search I did - perhaps there are more gems in here, but I cannot read all this tonight.
https://www.google.com/search?q=MIDI%20jitter
So, latency might not be the problem - jitter may be the culprit!
Terry