GUIDE TO INSTALLATION AND OPERATION
86
| XVP-3901
Note: When decoding PCM audio, the Dolby decoder does not generate any metadata. If a decoder is
selected as a source for a specified metadata path, the generator on the same path will be automatically
turned ON when the decoder is decoding PCM audio. The content of the generator must have been
previously configured. Refer to “Generator automated mode” below for details.
Backup:
use this pulldown to select the source that will be used if the primary source becomes
unavailable or invalid. In addition to the available primary sources, the list includes:
•
Last valid – return to the last valid source used
•
Blank – no metadata output
•
Generator – use the internal generator
Generator:
Use this pulldown to turn the internal generator ON or OFF. Turning it ON selects it
as the source. The generator creates a complete, specific set of metadata, which is configured
in the Generator tab.
Generator automated mode
:
The generator is turned on or off automatically in specific conditions to avoid loss of metadata
at the output stream. There are two specific conditions which will trigger the automation behaviors:
1. When a Dolby decoder module is installed and selected as the metadata source of a path, the audio
metadata from a Dolby E input stream will be decoded and passed. When the decoder is fed with PCM audio,
the Dolby decoder will not provide metadata. Instead, the generator of the selected path will be automatically
turned on. It is the responsibility of the user to configure the generator with the proper PCM metadata
parameters.
2. When an upMAX
tm
module is installed and configured to operate in
Follow Metadata
mode, the resulting
upMAX
tm
mode is dictated by the
coding mode
parameter of the probed metadata stream. When the
metadata stream coding mode is 2/0, the upMAX
tm
mode is set to
Upmix
and the generator will be turned on
to generate 5.1 metadata for the upmixed audio content. It is the responsibility of the user to configure the
generator with the proper 5.1 metadata parameters. If the metadata stream coding mode is 3/2, the upMAX
tm
mode is set to
Pass
and the generator will be turned off to let the input metadata stream go through. If the
coding mode detected is other than 2/0 or 3/2 or there is no metadata, the reversion mode is used. In that
case, the generator will be turned on for the
Upmix
and
AutoMAX
reversion modes, and off for
Pass
reversion
mode. The generator affected is tied to the module’s socket (i.e. generator on path 1 for upMAX
tm
in socket 1;
generator on path 2 for upMAX
tm
in socket 2).
Notes:
•
If the two conditions are true, the upMAX
tm
automation has precedence over the decoder because the
upMAX
tm
is located after the decoder in the audio processing path.
•
No automation is provided for the generator content. The generator content is always under user control
and must have been previously configured if used in these conditions.
Hold:
Use the pulldown to select Hold ON or OFF.
•
ON – freezes the Metadata values used in the output bitstream
•
OFF - allows the current metadata to pass to the output
Probe 1:
this box shows where the audio metadata probing occurs in the path.
