D*AP8
46
But he can also use external metadata from 9-pin input or from a SDI VANC stream which are routed to
the metadata generator.
(see DOLBY PROCESSING > Metadata > Routing > Metadata Destination = D.Sub In).
Similar applies if one wants to listen to the influence of metadata from encoded streams.
A professional decoder would normally not apply metadata to the decoded audio as a TV set or a STB
implementation would do. With emulation you can listen to it. This example shows a
Dolby E
decoding
situation with
metadata
for
emulation
coming from
the decoder:
and alternatively from the generator:
The right hand scenario allows for partially or fully overwriting the encoded metadata
(see DOLBY PROCESSING > DECODER/ EMULATION > Emulation > MD Generator overwrites
encoded Metadata = ON)
Same applies to Dolby D / D+ decoding.
Metadata from decoder:
metadata from generator:
A special application is
Dolby Pro Logic
decoding. The
Pro Logic
technology does not have metadata
like its younger digital family members. So in case a
Dolby Pro Logic
signal must be evaluated it will
be passed straight through to the
Pro Logic
decoder.
But you may also listen to the Lt/Rt downmix (the Pro Logic format) by decoding it.
Decoding of
Pro Logic
from PCM input:
Pro Logic decoding from a D-E stream:
The configuration at the right hand side will only work if the channel mode of the selected program is
2/0. It will be used if the
Dolby Surround Mode
is set to
"Dolby surround encoded"
and one wants to
listen to the decoded surround signals.
The
D*AP8
distinguishes between two major modes:
Decoding
(only) and
Decoding/Emulation
.
For the decoding part we have pre-settings for each decoding type. The format detection is automatic
so the desired general settings like DRC modes must be set manually prior to decoding.
Important Note!
For parameter consistency reasons the preset editor can only be used for the respective
active mode of the
ON AIR
area. If the preset active mode does not match the one from
ON AIR
, preset
set-up is disabled and you will get the message
"Setup not available for this mode"
.
