I have an Annke NDC800 twin sensor cam, which supports talk back (push to talk), and that works if using the console and a mic on the PC. I'm trying to do same with the Android app... it, in theory, supports it. I can hear audio from the cam on the phone in the app, but when I push the microphone icon, I get a "motorboat" sound on the pc speaker and nothing plays on the cam. Audio is enabled in BI console for the camera, and the main setup has "enable audio capture hardware" checked in the microphone part, output default, tho those settings do not seem to make a difference. Anyone with a clue as to where the motorboat sound is coming from and how to make the app work?