I am having the exact same problem. I have an Audio-Technic AT822 stereo mic plugged into the front of my Fast track pro, and that goes into my PB G4 10.4.5 running GB. The cable from my mic goes to two seperate 1/4 plugs, one for channel one and one for two. I also changed the battery to the mic.
I re-installed M-Audio drivers from the one on their web site, repaired Disk Perm, etc. I did this with tech support from M-Audio, among other things.
On the fast track pro, even if I have the gain controls up to just about max (4 o'clock) and I have the levels in GB for that track set at just about max, I still get about 1/3 the way on the green mix levels.
At the store I got the M-Audio unit from, they thought it could be a mic issue, and althought the mic I have is a good one, they said it might be better for recording to one of those direct to disk recorder things.
Could this be?
If I plug my jazz guitar (single pick-up) directly into one of the 2 inputs on the front of the FTP, I can turn the gain to a little over hal way, GB's mixer level to a little more than half way, and this seems to work pretty well, with good sound, although I hear a buzzing sound that is not as bad during playback.
But I'd really like to use the mic, because I'm trying to record acoustic guitar.
Any ideas. Do I need a better mic? One that uses phantom power, whatever the **** that is?
I have gone into the Apple Midi set-up utility, and if the FastTrack Pro is selected as the input device, the volume sliders at the bottom of the window gray out, and at a level of just about zero
Thanks.
Jonathan