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