Available for Clips of a Node which outputs Audio, such as the Audio File Node. This option is accessible by right-clicking a Clip and selecting “Quick-Add Envelope”. Essentially, it creates an audio effect node and an Envelope Node connected to that audio effect. It offers a simple solution to add variety to audio.
Custom Effects & Envelope
First, when clicking the “Quick-Add Envelope” option, a dialog opens to select the audio effect type, it can either be Gain Node , Lowpass Filter Node or Highpass Filter Node. The second step is to select what to draw on the Envelope Node, the applied effect can either be Empty, Fade-in, Fade-out, or Fade-in-out.