Audio Postproduction for Digital Video

Chapter 2

Vibrations to Volts to Bits

Remember this:

•	We hear the world in ratios, not absolute numbers. Both volume and pitch work this way. The everyday math that works with measurements or money can lead you completely astray when it’s applied to audio.
•	Sound exists only in time; there is no such thing as an “audio stillframe” This affects everything you do with a track.
•	Although sound itself is analog, there are good reasons to keep a soundtrack in the digital domain while you’re working on it. But some of the rules for digital audio are different from those for analog.

A Tree Falls in a Forest…

Jokes and koans aside, we’ll assume it makes a sound. Let’s also assume you’re doing a film about timber logging and the sound is ...