Manual

Setting up audio and syncing
Loudness Pilot English Manual (2014-10-07) 51
Advanced SDI Mode section
The Advanced SDI Mode section of the I/O SDI
page contains SDI-related settings that you
would normally not have to change.
Advanced settings switch
To change Advanced SDI settings, click the Ad-
vanced button in the Advanced SDI Mode sec-
tion of this page.
! Please note that switching off access to Ad-
vanced SDI settings will reset all parameters
in this section to their default values.
Clock Mode parameter
With SDI standards constantly evolving, chanc-
es are that upstream equipment treat audio and
video sync differently – e.g., a device may only
pay attention to one or the other. As this may
cause occasional disruption of sound, picture or
both, a problem may be difficult to trace without
measurement equipment monitoring SDI traf-
fic for weeks or months. To diagnose a poten-
tial problem, Loudness Pilot offers a diagnostic
mode, which may be tried after consulting TC
support. To activate diagnostic mode, set the
Clock Mode parameter to Diagnostic.
In Diagnostic mode, the Loudness Pilot will dis-
regard the audio clock information included in
the audio packets in the SDI stream and de-
embed the audio based on the video clock only.
! Use the Diagnostic setting for diagnostic pur-
poses only.
Audio Out Groups parameter
Use the Audio Out Groups parameter to define if
and how the group assignment of the processed
audio signals should be changed.
Follow In Group setting
The processed audio signals will be assigned to
the same audio channel groups at the SDI out-
put that were selected using the Audio Groups
selector. This is the default setting which is also
used when Advanced SDI mode has not been
activated.
Settings: “Groups1+2”/“Groups3+4”/“Groups
1+3”/“Groups1+4”/“Groups2+3”/“Groups2+4”
The processed audio signals will be assigned
to the selected audio channel groups at the SDI
output.
If you are using this parameter to reassign audio
channels to other groups, make sure that you are
processing the right audio groups downstream.
Rate Detect Mode parameter
Use the Rate Detect Mode parameter to specify
how Loudness Pilot should behave when receiv-
ing SD, HD and 3G signals. By narrowing the
range of formats acceptable to the Loudness Pi-
lot, lock-up time may be optimized.
Automatic setting
When you set the Rate Detect Mode param-
eter to Automatic, Loudness Pilot will accept all
SDI formats: SD, HD and 3G. This is the default
setting which is also used when Advanced SDI
mode has not been activated.
SD only setting
When you set the Rate Detect Mode parameter
to SD, Loudness Pilot will only accept the SD
format and not consider locking to HD or 3G sig-
nals. This results in optimal lock-up time for SD
signals.
HD only setting
When you set the Rate Detect Mode parameter
to HD, Loudness Pilot will only accept the HD
format and not consider locking to SD or 3G sig-
nals. This results in optimal lock-up time for HD
signals.
3G only setting
When you set the Rate Detect Mode parameter
to 3G, Loudness Pilot will only accept the 3G
format and not consider locking to SD or HD
signals. This results in optimal lock-up time for
3G signals.
Stream 3G LevelB selection parameter
With 3G Level B SDI (SMPTE424M), 32 audio
channels in 8 audio groups are available via two
streams. Use the Stream 3G LevelB parameter