Performs a high quality, linear convolution effect using an impulse response file or generated impulse response. This node is often used to create a reverb effect and add an atmospheric environment.
Audio and Control lines (visualized with blue and purple, respectively) are both analogous to an analog signal. They can be used interchangeably, and, for example, an audio output (blue) can be connected to a Control input (purple), or vice-versa.
Before applying the convolution effect to the connected Audio line, the impulse response is always normalized (scaled) by equal-power normalization. The Generate noise option creates a full-spectrum stereo white noise with a linear, full-length fade-out.
Long impulse responses (either generated or file-based) are computationally expensive, and should be generally used sparsely (e.g. instead of using a Convolver Node on each branch of your graph, consider using 1 after summing your audio using an Add (Audio/Control) Node).
The output from this Node is always stereo, except when a mono impulse response is used with a mono input. Extra channels in the input are automatically mixed to stereo.