I've got three channels of bass going and I just put a simple beat alongside on a fourth channel and the timing of the drums sounds all over the place. So I muted the bass channels to listen to the drums and suddenly they're tight. Then when I mute all but one of the bass channels the timing of the drums is still spot on. But if I unmute all of the bass channels so they're all playing the drums are shot again.
What's going on?
I'm using logic 6 on a G5 with OSX 10.3.5 with an emu e6400, motu828, and an edirol PC300 usb midi keyboard as a midi interface. Could the PC300 be the problem?
Cheers an all