Apple Compressor 3 Bedienungsanleitung Seite 158

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Important: The automatic mode for the Aspect Ratio setting is able to choose from a
wider variety of values to better match the source video (with the values determined
and displayed when this output format is applied to a source media file). For the best
results, it is recommended that you use the automatic mode for the Aspect Ratio setting.
The Aspect Ratio
Automatic button
Note: By default, the Frame Controls feature is set to Automatic. As in the H.264 for
DVD Studio Pro setting, the Frame Controls Retiming Control will be engaged only if
the source file is interlaced.
Frame Rate: Use this pop-up menu to choose from the six options listed below.
The Frame Rate setting also has an Automatic button. Clicking the Automatic button
causes the encoder to choose the frame rate that matches the source video file.
The Frame Rate
Automatic button
29.97: Used for NTSC-based video
25: Used for PAL-based video
24: Used for PAL-based video
23.98: Used for NTSC-based video
15: Used for web-based video
Bit Rate: Use this slider to choose the bit rate to use for the output video, or enter a
number in the text field. The available ranges depend on the Device setting. The setting
you should choose depends on how the output is to be used. Higher bit rates produce
better picture quality, but they also produce larger output files.
158 Chapter 12 Creating H.264 for Apple Devices Output Files
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