The Multiply Node simply multiplies two audio or control signals, and outputs the multiplication result. In addition to using it for multiply control signals, you can also use this Node to modulate one audio signal with another (or an audio signal with a control signal), because the multiplication is done per-sample.
Inputs
Audio/Control Input 1
An audio or control signal, acting as the first operand of the multiplication. If nothing is connected, it’s the same as if a constant 0 signal was connected, causing the output to be 0 regardless of the other input.
Audio/Control Input 2
An audio or control signal, acting as the second operand of the multiplication. If nothing is connected, it’s the same as if a constant 0 signal was connected, causing the output to be 0 regardless of the other input.
Outputs
Audio/Control Output
An audio or control signal containing the multiplication result.
Whether this output is visualized as an audio or control output depends on what you connected to its inputs. If at least one input is an audio signal, the output is also considered as an audio signal. This is because an audio signal multiplied (or amplified) by a control signal is by definition still an audio signal.
Technical Details
The multiplication is done per-sample, and on a per-channel basis.
For non-mono inputs, this means the first channel of the first input is multiplied by the first channel of the second input, and so on. If you connect inputs with different channel counts, the input with the lower channel count is automatically upmixed to match the channel count of the second input.
Similar Nodes
- When multiplying 2 single-channel (mono) inputs, the Multiply Node has the same behavior as the Gain Node with its Gain-Control Input acting as the 2nd multiplication operand.