Audio Signal Flow in Final Cut Pro
When you play a sequence, you also need to hear the audio. Audio signal flow is the
path audio takes from tracks in the Timeline to your speakers. Understanding signal
flow helps you to properly set up audio equipment for output and monitoring. Your
ability to follow the audio path also helps you to troubleshoot silent sequences or
tracks that are routed to the wrong channels on an output deck.
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Part I
Audio Mixing
Here is the basic audio signal flow in Final Cut Pro:
 Audio tracks in the Timeline
 Output busses
 Hardware audio outputs
 Speakers, devices, or exported files