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Calibrating the Kaleido-X
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Metadata holding time The holding time parameters determine the delay after which decoded metadata such
as closed captions, subtitles, or XDS metadata will be cleared. Requires the CC/XDS
option (see “Enabling Options” on page 359).
Zero VU (dBu) The Zero VU (dBu) parameters determine the reference level to be applied to the
selected analog (from ABT) input signal. Its default value is 4 dBu, on a range of
-24 dBu to 8 dBu.
Zero VU (dBFS) The Zero VU (dBFS) parameters determine the reference level to be applied to the
selected digital (embedded, or from ABT) audio signal. dBFS stands for
decibels full
scale . Zero dBFS corresponds to the maximum possible level. By default the reference
level for a it is set to -20 dBFS, on a range of -24 dBFS to -8 dBFS. The extraction of
digital audio requires the KXS-HD-EMB or KXS-SD-EMB option (see “Enabling Options”
on page 359).
Loudness/dialnorm The dialnorm value that can be found in the Dolby VANC metadata is an indication of
the average level
of dialogue in the audio stream. The loudness is a measure of the
average level of an audio stream. It is possible to configure alarms that will be
triggered whenever the measured loudness is not within an acceptable range (1)
compared to the encoded dialnorm, or (2) compared to the reference dialnorm for your
organization, or (3) when the encoded dialnorm itself deviates too much from the
reference dialnorm for your organization. The related parameters determine the
loudness measuring standard you wish to apply, the channels that are involved in the
measurement, the reference dialnorm level for your organization, and the ranges
outside of which alarms will be triggered. Requires the KXS-Loudness option (see
“Enabling Options” on page 359).
Dolby E selection Dolby E audio can be decoded from one of eight AES pairs within a signal’s embedded
audio stream. The Dolby E selection parameter determine which AES pair will be used.
Requires the KXS-DolbyE option (see “Enabling Options” on page 359).
Router Card Calibrations
Switch field selection The switch field parameter determines whether the router card will perform clean
crosspoint changes on the odd (field 1) on the even (field 2) field, or on any field.
SDI output reclocking The SDI output reclocking parameter determine whether digital video signals will have
their timing restored at the selected output, to eliminate jitter. Reclocking is typically
used in installations with large routing devices or long cables in the signal path.
GPI/Genlock Card Calibrations
GPI line direction GPI lines can be configured as inputs or outputs, and the state of any GPI output can be
set manually for test purposes.