The pink connection on your adapter is for a mono microphone, not a stereo line-in. Can you get a refund (I can’t believe it was that much money). We recommend the Behringer UCA-202 for stereo devices (like the mixer in this illustration).
I’m using OS X 10.9.2, Audacity version 2.0.3, most likely from .dmg.
I am trying to use the same adapter, for the same reasons, sort of. I have a 13 inch Macbook, and I’m trying to hook up a piezo vibration sensor by USB so I can make an electric (eclectic?) didgeridoo.
At the moment, I’m trying a mono microphone from Radio Shack, and I’m getting nothing. Audacity records, but only a flat line, so I’m not sure what’s up with that