This is nowhere near how it sounds with our Bose X headset. First of all when there is no transmissions and nobody is talking in the cockpit the audiopanel's vox function keeps everything quite as long as the squelch is set correct. Atleast I belive it's the audio panel that does it and if so, the same should go for my video camera.
I've tested the camera 3.5 mm recorder by connecting it to my iPod and the sound is perfect, so I know that's not a problem.
Here you can hear a recording done while the aircraft is still on the ground with everything turned on and the engine idle. It's a lot better but theres still much noise that we don't hear with our headsets, and since the camera's only source of sound is what's coming though the cable it shouldn't matter that we have ANR in our headsets, should it?
http://luftfartsfag.no/example2.wma