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Dolby E Line Position Display
As part of the Status Data Screen, the AMP2-16V will display the line position of
each Dolby E bitstream contained in a 3G/HD/SD-SDI signal, relative to the guard
band. This may be shown for any or all Dolby E bitstreams simultaneously on the
same screen. As with other status data, Dolby E the line position can be shown in a
color and size that is appropriate to its importance to you.
The Guard Band in an SDI signal is an interval in which video edits and switching
can occur without disrupting the signal. The Line Position is the number of video
lines from the start of the video raster (line 0) to the start of the Dolby E data
burst.
Dolby CRC Error Counter Display
The AMP2-16V can flag and count Dolby errors as they occur. This important
information is shown on the Main Screen of the AMP2- 16V. Error counts may be
allowed to accumulate or may be reset as desired.
A CRC Error (Cyclic Redundancy Check Error) is a momentary flaw in the Dolby
bitstream. There can be a variety of reasons that this could occur, including errors
in transmission or a momentary interruption of the bitstream. The occasional CRC
error may be nothing to worry about, but multiple errors are an indication of a
signal problem, and this display will allow you to make that judgment.
Dolby Zoom Screen
Dolby Zoom is a very powerful analysis tool. With the addition of the Dolby
D/E/Dolby Digital Plus Option Card, you can quickly “zoom in” on your choice of
encoded Dolby streams to listen to and meter the contained audio channels. The
. In this screen, you may solo or mute
the individual channels for troubleshooting purposes. The Dolby Zoom Screen also
lets you scroll through multiple lines of metadata, that appear on the screen
adjacent to the metered channels. Then, with the press of a button, you can quickly
return to your normal monitoring screen.
Cluster Select
hot keys will automatically change to
Dolby Zoom
hot keys when a Dolby bitstream is detected in the cluster. Alternatively, you may
set up permanent Dolby Zoom hot keys. For details on how to monitor a Dolby
bitstream all the time without using Dolby Zoom, refer to
Monitor a Single Dolby Bitstream?
in Chapter 3
for details. Refer to
in Chapter 3
for details on how to set up a Dolby Zoom
hot key that is not combined with a Cluster Select hot key.
Important:
The
Dolby Zoom Screen
is only available when the Dolby
D/E/DD+ Card is installed.
