22
Note: remember that when the audio embedding function is enabled (section
3.6.2), existing horizontal ancillary data (including audio and metadata) are
blanked before the new audio is inserted.
3.7.2 VANC Blanking
Incoming vertical ancillary data can be entirely blanked, encoded, or user
controlled to allow a combination of blanked and encoded lines. Within the VANC
Blanking menu are four available options for VANC blanking:
PASS: All incoming VANC lines are allowed to pass through to the output.
BLNK: All incoming VANC lines are blanked (lines 10 to 20 in NTSC, 6 to 22 in
PAL).
PROC: All incoming VANC lines are processed by the Proc-Amp functions (lines
10 to 20 in NTSC, 6 to 22 in PAL).
USER: This selection controls line by line vertical blanking for lines 6 to 25. The
line range is from 10 to 25 inclusively for 525-line operation and 6 to 25
inclusively for 625-line operation. Line selection can only be performed via
the iControl remote software.
To change VANC blanking setting follow these steps:
1. Press SELECT to enter the menu.
PROC
is displayed.
2. Press the “+“ push-button until
BLNK
is displayed.
3. Press
SELECT;
HANC
is displayed. Press the “+“ push-button until
VANC
is
displayed.
4. Press SELECT to enable the VANC Blanking menu. The current VANC
Blanking setting is displayed.
5. Use the “+” or “–“ push-button to choose the desired VANC Blanking setting.
Press the “+“ and “–“ push-buttons simultaneously to set VANC Blanking to
PASS
(default setting).
6. Press SELECT to store the new VANC Blanking setting.
VANC
is displayed.
7. Press ESC to return to BLNK.
8. To return to normal mode, press ESC.
3.8 Freeze Functions
The DVP-101i has a manual freeze pushbutton situated on the front edge of the
module (see figure 3.1
Front Panel Interface
) that allows a user to freeze (grab) a
video image. All the ProcAmp functions can be applied to the frozen image.
An automatic freeze function is also available and is able to handle a live «hot
switch» on a pre-selected video input.
3.8.1 Automatic Freeze Mode
The DVP-101i can automatically freeze the output image to a predefined freeze
selection if it has detected an input signal loss or it has detected errors on the
serial digital 4:2:2 input signal. Either of these modes can be selected or disabled
in the FRZE-MODE menu. Refer to Table 3.1 for a description of each freeze
mode.
Summary of Contents for DVP-101i
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