Wednesday, February 18, 2009

Elements of Audio Post Production

Today, we're going to jump into working with audio post-production. What exactly is audio post, you ask? Well...
Audio post-production refers to all the work that is done on a movie's sound after the shooting has finished. The sounds that go into a video or film can be broken down into 4 basic categories:

1. Dialog - the MOST important part of the soundtrack. Includes anything being said by characters on or off screen. In many cases, the dialog you hear in a movie is actually NOT what was recorded at the time of filming; it is rerecorded in a studio by the actors who say their lines while watching the video of their performances. This is called ADR (Automatic Dialog Replacement). When the dialog is being spoken by someone who is not on the screen, it is called Voice Over, or VO.


2. Foley sounds - sounds made by the characters as they move around in the scene (footsteps, clothing rustling, picking things up, etc.). These sounds are performed by foley artists who specialize in making sounds that realistically match the actions on the screen (even though the sounds may actually be made using all kinds of crazy materials).

3. Sound effects - sounds not made by the characters. These can include realistic sounds (cars, animals, everyday things), ambience, bigger-than-life sounds (explosions), and imaginary sounds (lightsabers).

4. Music - there are four main types of music you might hear in a video
  • Score - Music composed specifically for a film or video
  • Jingle - Music composed for a commercial
  • Environmental music - music that is actually part of the background of a scene (from a radio, playing in a bar, etc.)
  • Soundtrack music - any music where the music is the main audio focus (a music video, the end credits of a movie)

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