Single vs Double system- When it comes film and video sound, the first thing that is needed, is to determine whether to use a single or double audio recording system. In single system, the audio is captured directly into the camera and records alongside the image. But with double/dual system, sound is captured independently on a digital audio recorder. Double system delivers a stronger audio quality. One of the most prominent benefits of double audio system is that the audio isn't tethered to the camera. This way, you can focus on the image without the sound being jeopardised. What is controllable/uncontrollable noise?- Controllable noise is interferences that can be managed. Such as mobile phones, as they can be switched off, so the sound can be avoided/controlled. Uncontrollable noise however, is sounds that can't really be controlled as much. ( for example, a passing car or an airplane)-This is where professional headphones are used. Wait tun till the sound stops, or if...