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Dolby Metadata Presets
Eight Dolby Metadata Presets can be configured.
By default, presets 1 - 4 have the same configuration recommended by Ericsson.
Presets 5 - 8 are by default configured to the Dolby defaults for "Stereo Film", "Stereo
Music", "Surround Film" and "Surround Music" respectively.
To configure the presets, please navigate through the GUI as follows :-
System Tab -> Slots -> Slot 1 -> Audio Module -> Dolby Metadata Presets
Then select the desired preset number.
Note:
Navigating away from the main Services Configuration page will lose any
changes that have not yet been saved/applied.
All of the parameters in the presets can changed to the users requirements. Any of these
presets can then be applied to any audio channel encoding audio in the Dolby Digital format.
The table lists the parameters for each preset.
Selected Option
Description
Preset name
Name of the preset (for user information)
Dialogue
normalization level
Used by a decoder to determine the level of adjustment required to
achieve this the set level.
Bitstream mode
Flags the type of service in the bitstream.
Line mode
compression profile
Alters the dynamic range for line output.
RF mode compression
profile
This alters the dynamic range for RF output. The overall level is
raised by 11dB.
Center mix level
Indicates the downmix level when there is no centre speaker. This is
applied to left and right channels only.
Surround mix level
Surround downmix level for the front left and right channels when
consumer has no surround speakers.
Dolby Surround mode
Flags if a two channel encoded stream contains information for a
Dolby Pro-logic decode (Lt/Rt)
Audio production
information exists
This indicates whether the Mixing Level and Room Type parameters
exist within the bitstream.
Mixing level
Indicates the acoustic sound pressure level of the dialogue level
during the final audio mixing session.
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