Sound Versus Noise
The difference between sound and noise is like the difference between a daisy and a thistle — they're made of the same basic stuff, but you don't want both of them in your bouquet. The inherent difficulty in excluding all noise is that no recording equipment is perfect. Couple that with the abundance of ambient noise surrounding us no matter where we are, and you've got a host of issues to conquer.
For decades it has proven impossible to eliminate all the
Everywhere we go, we're surrounded by
When filming anywhere except in a completely controlled soundstage, you cannot help but have background ambience or
Other than recording a track of room tone, you want to minimize ambient noise as much as possible. One way to do that is
A far easier way than redubbing to get around ambient noise is by using a highly directional microphone. When properly positioned, this microphone will pick up the dialogue or other sounds you want while minimizing background noise.
It may also be necessary to muffle the cause of the noise. Refrigerators, for example, can be turned off during shooting. Film cameras not only make a lot of noise as they sprocket the film past the gate, but they're often close to the subject, and therefore close to the microphone. In order to avert this problem you'll need to invest in specialized camera covers called