How do I get my external microphones to work properly with my MacBook Air?
I have a MacBook Air bought in fall 2014 with a 1.7 GHz processor and 8 GB of memory, using the El Capitan OS (10.11.2), and I'm trying to make a video recording using QuickTime. I'm a musician, so, for improved audio quality, I connected my AudioTechnica AT2020 microphones to my M-Audio FastTrack Pro, then connected the FastTrack Pro to my computer with its USB cable. After a short test recording, playback revealed that the audio and video didn't line up - audio was ahead of the video - and the pitch level of the music on the recording was higher. (As in, I played F, and the recording played back F#.)
Any thoughts on how I can get the audio and the video to line up and the pitch to be accurate?
MacBook Air (13-inch, Early 2014), OS X El Capitan (10.11.2)