Volume Knob
A manual gain and mute control carrying up to 8 independent audio paths through one node.
A Volume Knob is a manual level control you place in the signal path. Audio passes through it and comes out at the level you set.
A Volume Knob node with several lanes in use.
volume-knobWhen to use it#
- One control for a group of sources instead of adjusting several wires
- A mute switch you can reach quickly during a stream
- A trim point in the middle of a long chain
- Level control on a path where per-wire gain is awkward
Adding one#
Right-click the canvas → Mixing & Effects → Volume Knob.
Lanes#
A Volume Knob carries up to 8 independent paths, called lanes. Each lane is a separate pass-through: what enters lane 1 leaves lane 1, unmixed with lane 2.
The node shows the lanes you are using plus one free lane. Connect to the free lane and another appears, up to 8. A lane labelled Free lane - connect to add a path is unused.
This keeps a stereo pair on two lanes of one knob, under one control, without them being summed.
Using the knob#
| Action | Gesture |
|---|---|
| Adjust | Drag the knob up and down, or scroll it |
| Fine adjust | Hold Shift while dragging or scrolling |
| Reset to 0 dB | Double-click the knob |
| Mute | The MUTE control |
| Mute every lane | Mute all paths |
| Unmute every lane | Unmute all paths |
Range is -60 dB to +12 dB - narrower than per-wire gain, which goes to +36 dB.
The knob's gain applies to every lane at once - that is the point of it. For independent levels use separate knobs or per-wire gain.
A muted knob shows MUTED clearly on the node.
Knob gain versus wire gain#
| Volume Knob | Wire gain | |
|---|---|---|
| Adjust | Drag or scroll the knob | Click the wire, then its inspector |
| Range | -60 to +12 dB | -60 to +36 dB |
| Scope | Every lane in the node | One connection |
| Mute | Yes | No |
| Visible at a glance | Yes, on the node | Only when inspecting |
| Good for | A control you return to | Set-and-forget balance |
Use wire gain to balance your graph once. Use a Volume Knob for the level you actually keep changing.
Limits and gotchas#
- 8 lanes maximum.
- Lanes do not mix. To sum sources, route them into the same lane.
- One gain value covers all lanes.
Related#
- Nodes and Connections - per-wire gain
- Ducker - automatic rather than manual level control