What is Sidechain Compression? Sidechain compression is a popular mixing technique that helps manage the dynamics between different audio elements in a mix. It works by using the signal of one track to control the compression of another. This will allow one sound to “duck” or reduce in volume when the other is prominent. This technique is particularly useful in genres like EDM, where the bass often needs to make room for the kick drum, creating a distinct rhythmic “pumping” effect.

What is Sidechain Compression

Compression is an essential tool in audio production, used to control the dynamic range of a sound by reducing the volume of its loudest parts while raising the quieter sections. This creates a more balanced and consistent sound. However, when using sidechain compression, the compressor is triggered by an external signal, rather than the track it is applied to. This will allow for more creative and functional mixing techniques.

How Sidechain Compression Works

SC involves sending an audio signal (like a kick drum) to the sidechain input of a compressor on another track (such as a bass line). When the kick drum plays, it triggers the compressor, reducing the volume of the bass. This process ensures that both elements can coexist in the mix without one overpowering the other, maintaining clarity and punch.

Common Applications

SC is versatile. It can be applied to various elements in a mix. For example, it can be used to prevent a bassline from overwhelming a kick drum, tame an overly bright guitar that masks the vocals, or control reverb effects on a snare drum. Each application enhances the mix by ensuring that critical elements remain clear and prominent.

Setting Up Sidechain Compression

Setting up sidechain compression in a digital audio workstation (DAW) involves routing the audio signal you want to control to the compressor’s sidechain input. This can be done using a dedicated sidechain input on the compressor or by sending the signal through a bus. Adjust the compressor’s threshold, ratio, and attack/release settings to achieve the desired effect, balancing the dynamic relationship between the two tracks.

 In Action

SC has applications across various music genres, with its most recognizable application in EDM. There, the technique creates the characteristic “pumping” effect that drives the rhythm of the track. Beyond EDM, it’s employed in rock, pop, and even film scores to manage the balance between different instruments and effects. This will ensure a clear and impactful mix.

Conclusion: Sidechain Compression

Mastering sidechain compression can significantly enhance your mixing skills, allowing you to create more dynamic and balanced mixes. By understanding how to set up and apply this technique effectively, you can ensure that your tracks maintain clarity, punch, and cohesion, regardless of the genre. Experiment with different applications to see how sidechain compression can improve your production quality.