4

Table Of Contents
Note: By default, the Frame Controls feature is set to Automatic. 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 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.
Audio: Use this pop-up menu to choose from the four audio bit-rate options listed
below.
None: Use this option to exclude audio from the output media file.
24 Kbps: Creates an audio bitstream at 24 Kbps for the iPhone (Cellular) device option.
128 Kbps: Creates an audio bitstream at 128 Kbps.
256 Kbps: Creates an audio bitstream at 256 Kbps.
162 Chapter 13 Creating H.264 for Apple Devices Output Files