volume on any clip that has audio sets its level. Fades sit next to it. Everything past that is an effect on the sound medium, and the same effect list works on a clip or on a whole track.
Levels that work
volume is linear gain. With speech at 1.0: music under speech 0.10 to 0.12, music alone 0.35 to 0.5, sound effects 0.25 to 0.32. Fade music in over 1 to 2 seconds and out over 3 to 5, ending on the last frame. To duck music under speech, keep one music clip and put keyframes on its volume: 0.4 before the first word, 0.11 under the speech, back to 0.4 after it. fadeIn and fadeOut work alongside those keyframes.
Cleaning up a recording
loudness brings a quiet recording to a streaming target. voiceDenoise removes steady background noise from under speech. gate closes the microphone between phrases, highPass cuts rumble below the voice, eq shapes it, and compressor evens out loud and quiet words.
Shaping and colour
reverb, echo, pitch, lowPass and limiter. A limiter makes music louder without letting peaks clip.
Sound drawn on the picture
visualizer draws the sound onto the frame for an audiogram or a podcast clip, as a waveform, bars or a level meter.
before
visualizer