Audio tabs display audio waveforms for audio clip items. If your clip has audio items,
each audio item opens in its own Audio tab. (If you open an audio-only clip, you’ll only
see Audio tabs with no accompanying Video tab.) Clips in Final Cut Pro may have up to
24 audio items.
An audio tab may represent a single (mono) audio item or a stereo pair of audio items.
Stereo audio items appear together in a single tab, while mono audio items appear
separately in individual tabs. Controls in each Audio tab allow you to change the audio
level and the stereo panning parameters, creating keyframes if necessary to adjust levels
over time. You can also use an Audio tab to set In and Out points, markers, and keyframes
for audio clips. To learn more, see Volume II, Chapter 17, “Audio Editing Basics.”
Learning About the Final Cut Pro Interface