User guide

Chapter 8, Defining Your Adobe Premiere Pro Settings

Mixing SD and HD clips in a project

Matrox Axio supports realtime playback of SD clips in an HD project, and HD

clips in an SD project. To do this, however, the clips must be scaled to your

project’s frame size. If you want the scaling to be performed when you import the

clips into your project, choose

Edit > Preferences > General and select

Default scale to frame size. This option does not affect clips that have already

been imported into your project. To scale individual clips in a sequence,

right-click the clip in the

Timeline panel and choose Scale to Frame Size.

Because you can also mix interlaced and progressive clips that have the same

frame size and frame rate in a project, when you apply realtime scaling to a clip it

will play back in real time even if the clip’s scanning mode (interlaced or

progressive) doesn’t match your project. For more information about this feature,

see “Mixing interlaced and progressive clips in the same project” on page 271.

Depending on your project’s video format, realtime scaling of clips is supported

as shown in the following table:

Project video format Supported realtime scaling of clips

NTSC Downscale 1080i and 1440 ×1080i/p @ 29.97 fps

PAL Downscale 1080i/p and 1440×1080i/p @ 25 fps

486p @ 23.98 fps Downscale 1080p and 1440×1080p @ 23.98 fps

486p @ 29.97 fps Downscale 1080i and 1440 ×1080i/p @ 29.97 fps

576p @ 25 fps Downscale 1080i/p and 1440×1080i/p @ 25 fps

1440 × 1080i @ 25 fps Upscale PAL and 576p @ 25 fps

1440 × 1080i @ 29.97 fps Upscale NTSC and 486p @ 29.97 fps

1440 × 1080p @ 23.98 fps Upscale 486p @ 23.98 fps

1440 × 1080p @ 25 fps Upscale PAL and 576p @ 25 fps

1440 × 1080p @ 29.97 fps Upscale NTSC and 486p @ 29.97 fps

1080i @ 25 fps Upscale PAL, 576p @ 25 fps, and

1440 × 1080i/p @ 25 fps

1440 × 1080i/p clips are automatically upscaled when imported to a 1080i/p (1920 × 1080)

project, and don’t require you to use Adobe Premiere Pro’s “Scale to Frame Size” feature.

1080i @ 29.97 fps Upscale NTSC, 486p @ 29.97 fps, and

1440 × 1080i/p @ 29.97 fps

1080p @ 23.98 fps Upscale 486p @ 23.98 fps, and

1440 × 1080p @ 23.98 fps

1080p @ 25 fps Upscale PAL, 576p @ 25 fps, and

1440 × 1080i/p @ 25 fps

Axio Installation and User Guide.book Page 72 Monday, July 14, 2008 8:00 AM