DUCKER

Standalone real-time sidechain ducker desktop app written in Rust using cpal + egui/eframe.

Build

cargo clippy --all-targets --all-features
cargo build --release

Routing with Audient EVO 4

1. Select EVO 4 Input as the app input device.
2. Set Main Ch to 1 (input index 0).
3. Set SC Ch to 2 (input index 1).
4. Select EVO 4 Output as the output device.

This maps hardware Input 1 as program audio and Input 2 as the sidechain trigger.

BlackHole tip

If you want to duck software audio (DAW, browser, or stream), install BlackHole 2ch and select it as the input routing source for the sidechain channel.