Instrument Plug-Ins : Bruno and Reso : Using an External Key Input with Bruno/Reso

Using an External Key Input with Bruno/Reso
(Side-Chain Processing)
Bruno and Reso feature side-chain processing capabilities. Side-chain processing lets you trigger certain controls from a separate reference track or external audio source. The source used for triggering is referred to as the key input.
You can use this capability to control the rate at which Bruno performs sample switching or Reso toggles its harmonics back and forth using the dynamics of another signal (the key input).
Typically, a rhythm track such as a drum kit is used to trigger these controls and create rhythmic timbral changes that match the groove of the key input.
To use a key input for side-chain processing:
1 Click the Key Input selector and choose the input or bus with the audio you want to use to trigger the plug-in.
 
2 Click the Key Input button (the button with the key icon above it) to activate external side-chain processing.
3 Begin playback. The plug-in uses the input or bus that you chose as a side-chain input to trigger the effect.
4 To hear the audio source you have selected to control side-chain input, click the Key Listen button (the button below the Ear icon).
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5 Adjust other controls to create the desired effect.