Howdy

Is this the USB AV or serial? I've heard USB is not ready for primetime MIDI.

Make sure you have the latest drivers and whatnot. The latency shouldn't be discernable from pluging MIDI out of the PC88 to the SE1.

Thanks for such a quick response. I'm using USB AV... The pc is windows XP too, which makes trouble shooting even more difficult. I downloaded the driver from MOTU but I'm still running into the same problem.
Also, when I record the midi into cakewalk, it shows up late there, so it's going into the PC late. If I knew XP in the slightest, I could tell if I had the right drivers. And XP experts out there?

Howdy

Not a solution but another troubleshooting tip. try a different sequencing program (download a demo version of something) and see if the input delay persists. If so, then its your system rather than Cakewalk.

I dunno about the PC88 but some keyboards put out shitloads of System Realtime crap. Just look at the AV's MIDI Status lights with all your stuff hooked up. If they're glowing bright green with nothing playing, something is in a MIDI loop or putting out System Realtim and/or Active Sensing.

This can sometimes bog down a MIDI system. If you have your MTP Console (or whatever little software thing you use to control the MTP on the PC) working, try muting out all System Realtime and Active Sensing from the MTP inputs.

Also, try routing your controller to your sound module using the AV's internal patching.

I suspect a driver oddity.