

In this case of kick-drum-heavy club music, the kick drum will most likely trigger our ears built-in limiter with its huge bass energy levels. When you reach these limits, your ears just compress (or limit) any sound louder than their own inbuilt threshold. The human ear, like any kind of listening device or recorder, has limits to how loud the sound can be before it will distort and overload. It gives the impression that the track is louder than it actually is. You can use this effect to take advantage of one natural phenomenon.

If you apply this compression to the whole track, the effect can be pretty intense. The combined effect makes whatever you compress sound like it is pumping or sucking. If you feed a regular 4/4 kick drum into the sidechain input of a compressor and use a reasonably high ratio and low threshold along with a fast attack and a medium-to-long release, the sound will duck when the kick drum is present, because the kick drum will be triggering the compressor to reduce levels every time it sounds. However, it has come to be associated with a very specific type of usage. Sidechain compression is actually a very general term. This may be done with a gate with its ducking function engaged or by a dedicated ducker.

In other words, one track is made quieter (the ducked track) whenever another (the ducking track) gets louder. Ducking here works through the use of a “side chain” gate. In music, producers apply the ducking effect in more sophisticated ways where a signal’s volume is delicately lowered by another signal’s presence. Ducking becomes active as soon as the translation starts. A professional speaker reading the translation dubbs and ducks the foreign language original sound. In radio, this can typically be achieved by lowering (ducking) the volume of a secondary audio track when the primary track starts and lifting the volume again when the primary track is finished.Ī typical use of this effect in a daily radio production routine is for creating a voice-over. In sidechain compression, the presence of one audio signal reduces the level of another one. Sidechain compression, also known as ducking, is an audio effect commonly used in radio and pop music, especially dance music.
