AJA Io Express, Инструкция по установке и эксплуатации

Страница: 71 / 132

1
61
Io Express Installation and Operation Manual — Setup Window
Timecode Source
Choose between a separate-channel Longitudinal Timecode (LTC) or Vertical Interval Timecode
(VITC) transported in the video signal’s vertical interval or include both (LTC + VITC).
Click on the Hot Text items to enter a value for:
• Preroll – 0 to 15; the number of frames required to start the source machine before capture
• Handles – 0 to 60; the number of frames added to the front and back of a sequence for
editing flexibility
•
Timecode Offset– -30 to +30; timecode adjustment (in frames) forward or back to
compensate for discrepancies between the source’s burned-in timecode and that of the
captured sequence.
General Options Video/Audio Directory Setup
Use these hot text fields to enter the path of the default
capture/playback directories.
Enforce Memory Alignment
For almost all cases this checkbox should remain
unchecked. However on certain types of RAID Controllers
(usually RAID5 SATA), when reading/writing to disc to/from
system memory, memory alignment must be done on a 512
byte address alignment. Enabling this option insures that
reading/writing is done to a 512 byte address in system
memory. But there is a performance cost. Due to re-
alignment, reading/writing is not guaranteed to be in
realtime.
Audio Files Setup
Three audio enable check boxes, when checked, allow you
to:
•
Enable Audio Scrubbing – Audio will play while you move through frames using the scrub
bar (see Play Controls).
• Enable Audio Variable Speed – Audio will play at the same speed the video is played (rather
than 1x only).
•
Enable Audio Auto-Search – Io Express software will automatically load the Audio Track list
with audio files that have been generated with the same name as the selected video file.
Note: When Audio Auto-Search is active, existing file names in the list will be removed or over-
written when the Video File is loaded. (Does not affect the actual audio files.)
Audio Monitor Levels
Choose b6 dB (US) monitor level and +0 dB (EBU).