that figure applies to the United Kingdom. Note the reference to Article 94A, which is not an FAA document.
Did the FAA person you dealt with provide that as an explanation of the rule in the US? To my knowledge, the FAA regulations define the...
The rone doesn't have a build-in microphone. If it did all you would pickup with the noise of the motors and propellers. Just record locally and synchronize during video edit and production.
Drone video high definition file recordings are on the drone SD card, not on the controller. Make sure you copy all new video files to your computer after each flight. Only very low resolution video files are on the controler.