Compressor
Definition
A dynamics processor that reduces the gain of audio signals that exceed a set threshold by a defined ratio. Used to control dynamic range, add density, and shape the character of a sound.
In Simple Terms
A tool that makes loud parts quieter and quiet parts louder, evening out the volume. Used on almost everything in modern music, vocals, drums, bass, even the whole mix. The settings determine whether it's subtle glue or aggressive punch.
Sources & Verification
- Izhaki, R.. Mixing Audio: Concepts, Practices and Tools (3rd ed.)Focal Press, 2017
- Katz, B.. Mastering Audio: The Art and the Science (3rd ed.)Focal Press, 2014
- Giannoulis, D., Massberg, M. & Reiss, J. D.. Digital Dynamic Range Compressor Design. A Tutorial and AnalysisJournal of the Audio Engineering Society, 2012
Last verified: 2026-05-05