MIDI latency, possibly after 2.1 upgrade
I've been using my 64studio system happily for several months. Lately I've noticed a problem where running MIDI through Alsa seems to incur a lot of latency. When playing notes on one of my keyboards, setting "local on" and also feeding the notes back to the same keyboard through the PC, I measured the latency at 30+ ms. It also seems to be irregular, which you can sense when playing back compositions through Rosegarden -- it just sounds like the notes run together sometimes. I'm using a MidiSport 8x8. Among the things I tested was playing through the MidiSport in "Thru Mode" versus USB mode, and did not have any problems there. The problem seems to lie somewhere between the MidiSport and the PC. Audio is fine. I upgraded to 64Studio 2.1 a few weeks ago, and did not notice this problem before then. My kernel version is 2.6.21-1-multimedia-486. Anybody else experiencing this problem?