Converting video to a new speed, Entering a percentage – Apple Compressor 3 User Manual
Page 280
Important:
If you are using retiming controls on a setting using the QuickTime Movie
output format and choose “Pass-through” for the audio setting, the audio does not have
its speed changed and will not maintain sync with the video. See
for more information.
Converting Video to a New Speed
The retiming controls give you three options for determining the playback speed.
You can determine the playback speed of the output media file by:
• Entering a percentage
• Entering a duration
• Forcing the frames to play at the Encoder pane’s Frame Rate setting
Entering a Percentage
You have two options when using the percentage method to determine the clip’s duration:
• Entering a percentage value
• Choosing a preset value
The presets that you choose from are intended to be used for specific situations.
• 24 @ 25: Use this setting when you have 24 fps video that you want to convert to 25 fps
for PAL distribution.
• 23.98 @ 24: Use this setting when you have 23.98 fps video and want to convert it to
24 fps.
• 23.98 @ 25: Use this setting when you have 23.98 fps video and want to convert it to
25 fps for PAL distribution.
• 30 @ 29.97: Use this setting when you have 30 fps video and want to convert it to
29.97 fps.
• 29.97 @ 30: Use this setting when you have 29.97 fps video and want to convert it to
30 fps.
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Chapter 23
Working with Frame Controls