Instruction manual

GUIDE TO INSTALLATION AND OPERATION
24 | IRD-3111
3.4.9 The Audio Config panel
This panel provides controls for configuring the Dolby AC3 decoder and analog audio outputs, and for monitoring
some audio parameters
3.4.9.1 Config tab
Dolby Audio Decoder (AC3)
Decoder Operation
Audio 1 and Audio 2 can each be set to:
• Decode
• Pass-through, bypassing the decoder and audio
processing functions
Downmix mode – select the downmix mode individually for
Audio 1 and Audio 2:
• Lt/Rt – Dolby “unofficial” pro-logic compatible
• Lo/Ro – normal stereo
Dynamic Range Compression (DRC) – Use the pulldown to
set DRC ON or OFF
DRC Profile – Use the pulldown to set the DRC profile to
Line mode or RF mode.
Analog Audio Output
• The Analog Output option must be activated in order to use these controls
Synchronization – Use the pulldown to select whether the analog audio output will be synchronized with CBVS (which
is not frame synced) or SDI
Left Source, Right Source – Use the pulldowns to select the source of audio for the two output channels. The
available choices are the same for both:
• Left
• Right
• Center
• LFE
• Left Surround
• Right Surround
• Auxiliary Audio Left
• Auxiliary Audio Right
A / V Sync Offset – Use the slider or type into the data box to set the audio./video sync offset to a value between 0
and 100 msec.
A / V Sync quality – use the pulldown to select between Normal and Best. See section 4.3 for more details.
Audio Embed – use the pulldown to set audio embedding ON or OFF
Figure 3.16 Audio panel – Config tab