Reference Monitors User Handbook
47
REFERENCE MONITORS RM-4C8
2
Reference Monitors User Handbook
47
REFERENCE MONIT
ORS RM-HD(E)1, RM-E1X & RM-E1B
3
REFERENCE MONITORS RM-HD(E)1,
RM-E1X & RM-E1B
RM-HDE1 Reference Monitor 3G/HD/SD-SDI & Dolby®
E Expansion Card
This expansion board allows the monitoring of embedded audio channels within an 3G/
HD/SD-SDI video signal. The embedded audio can be either non-encoded linear PCM,
Dolby® E or Dolby® Digital. Please note that the RM-HDE1 card is for use with the RM-4C8
unit only.
The expansion board can extract any selected AES/EBU audio group (4 channels) from the
video signal and pass them to the main Reference Monitor unit for monitoring. Any group
can be selected. All channels in the selected group can be monitored visually and any 2
channels can be selected to be monitored on the speakers. If a Dolby E or Dolby Digital
input is detected on the selected channel, the Channels (CHANS) button flashes to indicate
that decoding is possible. Pressing the CHANS button displays the Dolby Digital 5.1 or
Dolby E 8 channel signal, using the 4 bar-graph meters. Each meter is split into 2 sections,
top and bottom, allowing you to monitor all 8 channels coming from the Decoder..
Full Dolby Metadata is available using the SCi remote control software. For a more detailed
description of Dolby Decoding operation please refer to the Reference Monitor handbook
The input is auto-sensing for either SD, HD or 3G input formats and the extraction of
embedded audio complies with SMPTE-272 (SD) and SMPTE-299 (HD/3G). The SDI input is
equalized, internally re-clocked and re-transmitted to provide a re-clocked output to pass
to external equipment such as another reference monitor.
Fig 3-3: RM-HDE1 Expansion Card
SDI
Input
8 Channels
To Reference
Monitor
Bank/Source
Select
RS232 Output
Audio
De-embedder
Reclocker
SDI
Receiver
Audio
PLL
SMPTE 337
Detector
Dolby E &
Dolby Digital
Decoder
EQ
1 Group
HVF
SDI
Output
CD
2
8
Downmix
Metadata
Fig 3-4: RM-HDE1 Block Diagram