User guide

Defining your General settings

¦NoteIf you choose to scrub fields when working with progressive scan

video, you won’t normally see a difference between scrubbing the first or

second field.

4 Under Video Luma Level, select the type of processing that you want to be

applied to luminance levels in your video when rendering and previewing

video in a sequence:

$ Broadcast Processes video using the standard legal range of luminance

levels for broadcast video. Any super black or super white luminance levels

(that is, levels that fall below the standard black level or exceed the standard

white level) are clipped.

$ Post Production Processes video for post production. Any super black

or super white luminance levels in your video are retained.

5 Under Video Processing Format, select either 8-bit or 10-bit to indicate

the bit depth you want to use for processing video in a sequence. In some

cases, such as when the video output for an HD project is downconverted to

NTSC or PAL, the video processing format will be set to

8-bit.

6 Under Preroll/Postroll Frames for Audio Scrubbing, use the sliders to

specify the number of audio frames you want to be played before/after the

location of the current-time indicator when you scrub a sequence. This lets

you hear more audio to help you better identify sounds when scrubbing. For

example, if you set the number of preroll frames for audio scrubbing to

you will hear the audio for the current frame and three previous frames when

you scrub a frame in a sequence.

¦NoteTo return a slider to it’s default setting, click its D button. This button

is available for all sliders in the Matrox dialog boxes.

7 Under Error Reporting, select Report dropped frames or lost genlock

on playback

if you want to be warned each time frames are dropped or the

genlock source signal is lost when you play back video from the

Timeline

panel. Otherwise, clear this option.

¦NoteOnce playback of the sequence has stopped, a red bar will appear over

segments of the sequence that have dropped frames (even if you don’t choose

to report dropped frames).

8 Under Frame Hold, select Enable Frame Hold if you want to use Adobe

Premiere Pro’s Frame Hold to freeze on a particular frame of a clip in a

sequence. When you do this, any Frame Hold effects applied to your clips

will require rendering. If you’ve selected

Enable Frame Hold and

encounter repeated frames when playing back nested sequences or clips with

negative speed changes, or you find that segments are identified with a red

bar that don’t actually require rendering, you can clear this option. When

you do this, however, any Frame Hold effects you’ve applied will be ignored.

Axio Installation and User Guide.book Page 75 Monday, July 14, 2008 8:00 AM