Audio Glossary
Dynamics · aka ducking, sidechaining
WHAT IS
SIDECHAIN COMPRESSION?
Sidechain compression uses one signal to trigger compression on another. The classic use: the kick drum ducks the bass (or the whole mix) every time it hits, so the kick punches through cleanly. It's both a mixing fix for kick-bass clashes and a creative pumping effect central to house, EDM, and modern pop.
Two jobs: clarity and groove
As a mixing tool, sidechaining solves the eternal kick-vs-bass fight. Instead of EQ-carving them apart, you let the kick briefly duck the bass on each hit — the two stop competing for the same space and the low end gets tight and punchy.
As a creative tool, the same ducking becomes the 'pump' that defines a lot of dance music — the whole track breathing in time with the kick. The amount and release time control whether it's a subtle clarity move or an obvious rhythmic effect. Both come down to the same mechanism: one sound controlling the level of another.
Quick answers
SIDECHAIN COMPRESSION FAQ.
What is sidechain compression used for?
Most commonly to make a kick punch through by ducking the bass or the whole mix on each hit. It fixes kick-bass clashes and creates the rhythmic 'pumping' effect common in house, EDM, and pop.
How much sidechain ducking should I use?
For clarity, a few dB of gentle ducking with a fast release is enough to separate kick and bass. For an audible pumping effect, use more depth and a slower release so the track visibly breathes with the kick.
Related terms
Get it done for you
Full Mix + Master
From raw stems to release-ready. The full studio service — mixed and mastered by Charlie.
See the service →