Audio nodes
SwitchX routes sound through the node graph, just like video. There are three audio pieces:
- the audio strip on a media clip that has sound,
- the Master Audio Output node (where audio plays out), and
- the Master Audio Input node (a microphone or line‑in coming in).
Clip audio strip
When you add a Media File that contains an audio track, its card grows an audio strip showing the volume, play/mute state, playback mode, and delay — plus an Edit Audio button and an orange audio port.
Edit Audio button
Click Edit Audio (on the strip, or right‑click the card → Edit Audio) to open the Audio Settings dialog:
| Setting | What it does |
|---|---|
| Volume | Clip playback volume, 0–100%. |
| Muted | Silence this clip without changing its volume. |
| Playback Mode | When the audio is allowed to play: only when Deck A is active, only when Deck B is active, or continue playing regardless of the active deck. |
| Audio Delay | Offset the audio in milliseconds, to fix lip‑sync. |
The clip's audio port lets you route that sound onward — for example into a shader's audio‑in port to make visuals react, or into a Master Audio Output node to choose a playback device.
Master Audio Output node
The Master Audio Output node decides which device audio plays out of. By default SwitchX uses the system default output; add this node when you need to send audio to a specific interface (a PA feed, a separate sound card, headphones).
Add it: right‑click the empty canvas → Add Master Audio Output.
- It has an amber Master Audio In port that accepts many connections — wire clip audio ports and Master Audio Inputs into it.
- Click the device button on the node to choose the output device from a menu (System Default, or any detected audio output).
Master Audio Input node
The Master Audio Input node brings a live microphone or line‑in into the graph — commentary, a stage mic, a music feed.
Add it: right‑click the empty canvas → Add Master Audio Input.
- It has a teal output port — wire it into a Master Audio Output (to play it through a device) or into a shader's audio‑in (to make visuals react to the mic).
- Click the device button to pick the input device (System Default Mic, or any detected input).
- Right‑click the node for Set Volume… and Mute / Unmute.
Putting it together
- Hear a clip's audio on a specific speaker: clip audio port → Master Audio Output (device set).
- Make a shader pulse to music: clip audio port (or Master Audio Input) → shader's audio‑in port.
- Add live commentary to the mix: Master Audio Input → Master Audio Output.
A reminder from the deck controls: the crossfader also affects deck audio levels as you blend, and the panic Blackout / Pause / Stay Tuned buttons cut deck audio.