Sidechain – Definition & Detailed Explanation – Audio Software Glossary

What is a sidechain in audio software?

In audio software, a sidechain refers to a signal processing technique where the output of one audio track is used to control some aspect of another audio track. This allows for dynamic effects and creative manipulation of audio signals. Sidechaining is commonly used in music production, sound design, and audio engineering to achieve various effects such as ducking, pumping, and rhythmic gating.

How does sidechaining work?

Sidechaining works by using a compressor or an equalizer to modulate the amplitude or frequency of one audio signal based on the level of another audio signal. For example, in a typical sidechain compression setup, the level of a kick drum track is used to control the compression of a bass track. When the kick drum hits, it triggers the compressor on the bass track, causing the bass to be momentarily reduced in volume. This creates a pumping effect that is commonly heard in electronic dance music.

What are the benefits of using sidechains in audio production?

Using sidechains in audio production offers several benefits. It allows for greater control and flexibility in shaping the dynamics and frequency content of audio signals. Sidechaining can help create a more cohesive mix by allowing certain elements to stand out while others are pushed back in the mix. It also enables producers to achieve unique and creative effects that would be difficult or impossible to achieve with traditional processing techniques.

What are some common applications of sidechaining in audio software?

Some common applications of sidechaining in audio software include:

1. Ducking: Using a sidechain compressor to automatically lower the volume of one track when another track is playing. This is commonly used in radio broadcasting to make the vocals stand out over the music.

2. Pumping: Creating a rhythmic pumping effect by sidechaining a compressor to a kick drum or other percussive element. This effect is often used in electronic dance music to create a sense of energy and movement.

3. De-essing: Using a sidechain compressor to reduce sibilance in vocal tracks by targeting specific frequency ranges.

4. Gating: Using a sidechain gate to rhythmically cut off the audio signal of one track based on the level of another track. This can create stuttering or rhythmic effects in a mix.

How do you set up a sidechain in popular digital audio workstations (DAWs)?

Setting up a sidechain in popular DAWs such as Ableton Live, Logic Pro, and FL Studio is relatively straightforward. Here is a general guide on how to set up a sidechain in these DAWs:

1. In Ableton Live: Add a compressor to the track you want to sidechain. Click on the arrow next to the “Sidechain” button and select the audio track you want to use as the sidechain input. Adjust the threshold, ratio, attack, and release settings to achieve the desired effect.

2. In Logic Pro: Add a compressor to the track you want to sidechain. Click on the sidechain button and select the audio track you want to use as the sidechain input. Adjust the threshold, ratio, attack, and release settings as needed.

3. In FL Studio: Add a Fruity Limiter to the track you want to sidechain. Click on the “Comp” tab and select the audio track you want to use as the sidechain input. Adjust the threshold, ratio, attack, and release settings to achieve the desired effect.

What are some tips for using sidechains effectively in your music production?

Here are some tips for using sidechains effectively in your music production:

1. Use sidechaining sparingly: While sidechaining can be a powerful tool, it’s important not to overuse it. Experiment with different settings and listen carefully to how the effect enhances or detracts from your mix.

2. Experiment with different sidechain sources: Don’t limit yourself to using just a kick drum or bass track as the sidechain source. Try using vocals, synths, or other elements to create unique and interesting effects.

3. Automate sidechain parameters: To create dynamic and evolving effects, automate the parameters of your sidechain compressor or EQ. This can help add movement and interest to your mix.

4. Use sidechaining creatively: Think outside the box and experiment with unconventional sidechain setups. Try sidechaining reverb, delay, or distortion effects to create new and innovative sounds.

In conclusion, sidechaining is a versatile and powerful technique in audio production that can help you achieve a wide range of effects and creative possibilities. By understanding how sidechaining works, setting it up in your DAW, and following some tips for effective use, you can take your music production to the next level.