Click sound...I got it too
I recently tried to interface two different drum machines, both yamaha, and a yamaha keyboard to Logic, thru an M-audio midi/usb interface (brand new). I also get the click , or pop sound over the real sounds. With the keyboard, it clicks upon key release. Sound is not alert sound on Mac, it's part of the midi transfer somehow.
Any ideas of how to get rid of it?
Thanks
Bud