If so how do I stop it.....If not then WTH?

https://soundcloud.com/dwmike/wtf-simmons

This was a test to make a drum map for a set of Simmons drums. I played a simple beat recorded with X2a.
The drums are connected via MIDI cables in and out of a MIDISport 2x2 and the sound played back into the Scarlett 18i6.
The track interlieve was set to stereo and both meters were jumping but the recorded track only had a wave file on the top half and some small peaks here and there on the bottom half.

I don't know much about MIDI so if you need to know the setting of something in X2 I'll let ya know.

PS. The drums are mapped correctly in the Piano Roll View. If I click on a drum it sounds fine.
This only happens once I try to play and/or record to a guitar part I have recorded. I also tried a fresh project just in case something was buggy with the original.

Thanks

Mike

LOL forgot to mention it's the WTF Simmons track............
You'll know it when you hear something like Woody Woodpecker on crack.

Mike

After some research I realize that this is not MIDI Jitter.

I have no Idea what causes this.

I'm going to see if it happens in X1, or if my SPD-20 works fine or maybe it's the MIDISport.

Any other suggestions?

Mike

The link doesn't seem to point to your example.

HMMM.

I see what you mean. If I'm signed into soundcloud it works but I log out and just the home page.

How can I post the sample here?


Mike

Maybe this one?

https://soundcloud.com/dwmike/wtf-simmons

Mike

It is a rather interesting effect! Is it possible you have got some sort of midi feedback loop going on and there is some latency involved by the sound of it as well.

Here is a recent study about which DAWs have midi jitter problems. Apparently studio one, loguic and digital performer have problems.  Cubase , reaper and ableton have correct timing.

http://www.eigenzone.org/2012/12/04/midi-jitter

I can tell you it has nothing to do with MIDI. You seem to be getting an echo and its a little distorted. I would look closely at your routing within Sonar and how you have set up your 18i6. Do you have echo on?

I am not familiar with the drums you mentioned what I would like to know is what are you using as a sample player? 

Oddly, some but not all sounds are repeating. Is there something in the drum set that repeats a sound if the note is held & are there some recorded notes that are long? What happens when you unplug midi out from your Simmons? (midi loop?)