De-noise
Definition
The process of reducing or removing unwanted background noise from a recording using spectral or adaptive processing. De-noise tools analyze the noise profile and subtract it from the signal across the frequency spectrum.
In Simple Terms
Software that removes background noise — air conditioning, hum, room tone — from a recording. Use it with a light touch; too much and your audio sounds watery and robotic.
In Practice
A de-noise plugin is applied to a location recording that captured persistent air conditioning hum, reducing the noise floor without significantly affecting the dialogue in the foreground.
Common Confusion
Aggressive de-noising introduces artifacts — metallic, watery, or "underwater" textures — that can be more distracting than the original noise. Transparent de-noising requires a light touch and a clean noise profile sample.