The side-chain signal routing using Jet Acqua Effect

Sidechaining is a process that allows you to feed a plug-in, such as a compressor or a gate, with an external audio signal which will then trigger a key element of the process. So, for instance, in a traditional side-chain setup, we could see a kick drum being fed to a compressor to trigger its gain reduction.

The possibilities of sidechaining are vast, especially considering the variety of audio processors featuring sidechaining and the almost infinite number of sound combinations that can be used with them. The side-chain works as a form of an envelope follower, following the dynamic movement of the input same host, including built-in filters or equalizers for the side-chain path.

Each audio host (DAW or NLE) manages the side-chain routing, and the key signal works differently. On Steinberg audio hosts, the VST3 format works better for the side-chain than the VST2 format. The side-chain key signal is always mono on Avid hosts like Pro Tools.

The side-chain key signals can be internal and external:

• The internal side-chain key signal is the same as the source signal and normally is processed with a filter.  
• The external side-chain key signal comes from a different channel or bus, and the plug-in should be set to receive and process the key signal. The plug-in's key signal is normally identified as input 3 and input 4.

External side-chaining:

To explain how it works, you can use a session with two tracks. The first track should contain the audio that we want to process with Jet or any other Acqua effect that includes side-chain processing, which we'll call the main track from now. The second track should contain the audio that we want to route to Jet's external side-chain input and use as the trigger signal. We'll call this track the side-chain track. 

1. Open Cubase and create a new empty project. 
2. Add two audio tracks we'll use as the main and side chain tracks. 
3. Add audio files on both tracks, the main track and the side-chain track.
4. Open the Mixer. In the main track, click on an empty insert slot and select Jet in VST3 format in the filter menu.
5. In the plug-in header, click on the activate side-chain button (right of the r/w buttons) to enable the external side-chain. 
6. Set the output for the side-chain track to the side-chain input of Jet.
7. Set a loop where the side-chain track does not play and then starts to play to evaluate the dynamic compression effect.
8. Set the ext sidechain as ON in the Jet user interface (UI).
9. Set both frequencies to compress and the quantity of compression.
10. Set the main knob to adjust the general amount of compression.

1. Open Pro Tools and start a new empty session. 
2. Create two audio tracks we'll use as the main and side-chain tracks.
3. Add audio files on both tracks, the main track and the side-chain track.
4. Open the mix window to display the tracks with their insert slots and sends slots. 
5. In the first send slot of the side-chain track, choose bus 1.
6. The track view for bus 1 will open and set the level slider to 0.0 dB.
7. In the first insert slot of the main track, choose Search for Jet and load it.
8.  In the key input menu of the plug-in user interface, choose bus and then bus 1 instead of the default.
9. Set a loop where the side-chain track does not play and then starts to play to evaluate the dynamic compression effect.
10. Set the ext sidechain as ON in the Jet user interface (UI).
11. Set both frequencies to compress and the quantity of compression.
12. Set the main knob to adjust the general amount of compression.

1. Open Logic Pro and create a new empty project. 
2. Create two audio tracks we'll use as the main and side-chain tracks.
3. Add audio files on both tracks, the main track and the side-chain track.
4. Select the main track and add Jet in the first insert effect slot.
5. Select the side-chain track on the Jet side-chain menu (on the top right corner of the plug-in interface header).
6. Set a loop where the side-chain track does not play and then starts to play to evaluate the dynamic compression effect.
7. Set the ext sidechain as ON in the Jet user interface (UI).
8. Set both frequencies to compress and the quantity of compression.
9. Set the main knob to adjust the general amount of compression.

The Acustica Audio single point of contact (SPOC) is the Acustica Audio help-desk portal. In order to access to Audio help-desk portal go to the Acustica Audio website and then to the support section. We do not provide help, assistance, or support via social networks, public forums, or through our email accounts.