I just got an Antlion Modmic microphone, along with a Rockit headphone/mic to TRRS splitter. I've got everything set up, but my late 2011 mbp 15" just won't recognize the microphone as an input. I should have under my audio inputs box in system preferences a thing saying "external microphone," but I don't. I also don't think this is a hardware problem, either, it works fine on an iPhone.
Things I have tried:
-Plug the microphone in the Audio in Jack ----is not a powered mic input that my mic needs
-Tried plugging it in to the splitter first then in to the computer- still nothing
Is there something I'm missing?