iPad not recognizing external mic
I'm trying to send audio from a video camera into my iPad for voice recognition in a teleprompter app. I'm coming out of the headphone jack of the camera into the headphone jack of the iPad. I have the necessary TRS to TRRS adapter (Rode SC4) which oddly enough, appears to work with my iPhone 6. However, it does not with my iPad Air 2.
Any reason why it would work with one, but not the other?
iPad Air 2 Wi-Fi, Cellular