How do I record two mics at the same time in GarageBand?
In the Smart Controls pane below click the Info button. From the Input pop-up menu that appears, select the first of your two microphones. Now select the second track and in its Info pane choose the second microphone from the Input pop-up menu. GarageBand is now ready to record from each microphone.
How do I fix the mic delay in GarageBand?
1) Go to the GarageBand menu on the top left-hand corner in the toolbar on top. 2) Click on Preferences. 3) Click on Audio. 4) Change your Audio input and output to something else, and then switch it back again.