Barco R9004460 Owner's Manual page 58

6. Adjustment Mode
How to install the correct settings for the options in the Edit file menu.
EDIT FILE OPTIONS
Source number
Clamp delay
Clamp width
Film Mode Detection
Banner Protect
Select with ↑ or ↓
←, →, <ENTER> to adjust
<EXIT> to return
Menu 6-11
Source number
Clamp delay
Clamp width
Film mode detection:
[On] or [Off]
Banner Protect: [On]
or [Off]
Sync
pulse
Clamp
pulse
Image 6-2
Clamp delay and width
3:2 pull-down
Method used to map the 24 fps of film onto the 30 fps (60 fields) or 25 fps (50 fields), so that one film frame occupies
three video fields, the next two, etc. It means the two fields of every other video frame come from different film frames
making operations such as rotoscoping impossible, and requiring care in editing. Some sophisticated equipment can
unravel the 3:2 sequence to allow frame-by-frame treatment and subsequently re-compose 3:2. The 3:2 sequence
repeats every five video frames and four film frames, the latter identified as A-D. Only film frame A is fully on a video
frame and so exists at one time code only, making it the editable point of the video sequence.
54
1
8
20
[on]
[on]
The source number of a non-active file can be changed to any other source number. This makes it
possible to create a file for future source numbers.
The time between the leading edge of the clamp pulse and the locked edge of the sync pulse. Can be
any value between 0 and 255. Use the ↑ or ↓ keys to change the value.
The width of the clamp pulse can be any value between 0 and 255. Use the ↑ or ↓ keys to change
the value.
Detects in the [on] mode if the source is film or video. Use the ENTER key to toggle between [on] or [off]
When enabled, the hardware looks for tell-tale signs of 3:2 or 2:2 pull-down sequences. These are the
result of converting cinema material recorded at 24 frames-per-second to the television frequencies of
60 or 50 interlaced fields per second respectively. When FILM conversion is detected, the original
24 frames-per-second are restored. This avoids deinterlacing artefacts, and results in a perfect
artefact-free display. Note that in some cases (video clips, scrolling newstickers,...) FILM and VIDEO
material are mixed on one screen. This may confuse the detector and cause it to go into FILM
restoration mode. This will cause "jaggies" or motion artefacts. In such cases, disabling FILM mode
processing is the best cure.
Only active when film mode detection is in the on position. Use the ENTER key to toggle between
[on] or [off].
FILM mode processing normally processes the entire display, but this may cause problems on sources
where video and FILM content are mixed. One very common example is scrolling banners at the
bottom of the screen (e.g. financial news). For those cases, the "banner protect" feature will force the
bottom quarter of the screen to be always processed in VIDEO mode, regardless of the rest of the
screen, which may be either video or FILM mode.
Clamp Clamp
delay width
R59770014 XLM HD30 07/07/2006