Why Would You Change Your Sequence Settings?
Although the instances are rare, there are a few situations that may prompt you to
change your sequence settings:
 You’ve imported multiple video or audio formats, and you decide to change your
sequence settings to accommodate the more dominant format in your sequence to
reduce rendering.
 You’ve changed your video interface or capturing setup, allowing you to work in the
Y´C
B
C
R
(YUV) color space rather than the RGB color space.
 You’ve added an audio output device that allows you to output multiple channels of
audio directly from Final Cut Pro.
 Your intended output format has changed.
Sequence settings such as frame size, video compressor, and audio sample rate can be
modified at any time.
Note: The one setting that may not be changed is the sequence frame rate (referred to
as the editing timebase). You can change a sequence’s frame rate (editing timebase)
only if the sequence is empty. Once a sequence contains one or more clips, you can’t
change its editing timebase. Removing all the clips from the sequence allows you to
change the sequence’s editing timebase.
Changing sequence settings is discussed in Volume IV, Chapter 27, “Sequence Settings
and Presets.”