2 Expand each track. Each time you do so, highlight the track’s Waveform
component to display it.
A waveform is an image that represents an audio signal, showing a change
in amplitude over time. Soft sounds, like footsteps, produce a narrow
pattern, whereas sharp sounds, like the scrape of a chair leg, show a wider
pattern. Waveforms help you visualize the events in an audio recording.
Notice how only one track waveform is visible at a time in the Curve
Editor. (The master track waveform provides a visual compilation of all
tracks.)