14-1 through 14-5

14-1:
Audio is the recording and reproduction of sound in support of the video (Stinson 298)

14-2:
Two problems that you may encounter with audio:
One - The audio picks up every single sound. This is a problem because the dialogue in the scene could be ruined with the extra noise that the microphone picks up.
Two - Recording a sound does not necessarily mean that the sound is recognizable or even convincing. The audio could not match the scene and sound distorted.

14-3:
Production sound is the sound that is recorded with the video.  A difficulty that one could encounter is attempting to record an actual sound for the first time, such as a train derailing.  The problem with this is that if the production sound of the train derailing was unsatisfactory, it would be almost impossible and dangerous to derail another train in an attempt for a better sound. 

14-4:
Background sound is the sound that is heard in the background of the scene such as birds, wind, waves, traffic or other people talking.  Two ways to limit background noise include:
One - turn off controllable sounds like heating ducts or background conversations during takes (Stinson 300).
Two - minimize uncontrollable noises such as traffic or wind (Stinson 300).

14-5:
Sound effects are separated from the production track. One example of how a sound effect can be created is using a sound effect library that has thousands of different noises.  Another example is using a Foley studio which is "an environment in which technicians can make sounds while watching a shot on the screen and synchronizing the effects as they are recorded" (Stinson 301).