What Is Sidechaining?
Sidechaining is an essential audio production technique where one audio signal controls an effect on another. Primarily, this uses a compressor. Instead of reacting to its own input, the compressor listens to a separate “sidechain” signal to determine when and how much to reduce the primary audio source’s volume.
How Sidechain Compression Works
A “trigger” signal (e.g., a kick drum) is routed to a compressor on another track (like a bassline). When the kick plays, it instructs the bassline’s compressor to briefly lower its volume, creating vital mix space.
How Does Sidechaining Sound?
Sidechaining creates a distinctive “pumping” or “breathing” sound. As the controlling signal activates, the affected track’s volume temporarily dips then quickly rises. This rhythmic ducking generates movement, energy, and groove, particularly prominent in electronic music.
Common Applications & Benefits
Crucial in EDM, house, and trance, sidechain compression ensures kick drums cut through dense mixes. It also ducks background music for vocal clarity. It enhances overall mix clarity, separates frequencies, and adds rhythmic drive.
Sidechaining is an audio technique where one signal controls an effect on another, usually a compressor, to create rhythmic volume ducking.
