EVS Synapse GED100, Manual

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DecoderOut-Metadata through MetadataShuffler
If the Metadata at the input of the MetadataShuffler (selected with #Shuffler_MD_Src) are present and
have to be 100% transparently routed to its output, without manipulation, the user should set the
following values correctly to avoid accidentally overwriting single metadata values:
#ProgramConfig Ext_Meta
#FrameRate Ext_Meta
#MD_Prog_1,2,3 and 4 Ext
Main Preset Control is not used in this example, as the metadata routing is static. The Main Preset
Control can be disabled by setting:
Preset Control Manual
Loss Off
Detect Off
General Preset Notes
Some settings need special attention as they can generate (unwanted) audio clicks and plops when
switching Main-Presets and/or MD-Presets.
DD(+)-Encoder (if supported)
It is preferable to not change the #Enc-Config setting between presets. If possible, choose one value for
all Main-Presets. (The #Enc-Config setting is called Audio Coding in Cortex-Tab Dolby
Decoder/Encoder.)
Changing this setting between presets will force a full reset to the DD(+)-Encoder. This is never
seamless (a glitch in the Encoded output stream will result). Once the #Enc-Config is set for air-use, do
not change it but change the metadata. The #Enc-Config selected therefore needs to support the
highest denominator of the mode that you want to support.
Example 3: The #Enc-Config for the Dolby Encoder is set to 5.1+2, which means two encoders
running: Enc1=5.1(max) and Enc2=2/0(max). This defaults to acmod=3/2+2/0.
As the metadata overwrites the acmod, it allows any subset format to be supported: (Enc1=3/2, 2/2, 3/1,
2/1, 3/0, 2/0 or 1/0) and (Enc2=2/0 or 1/0).
Audio Embedding
It is preferable to not change the group selector for the audio embedders between presets.
When changing a single Audio Group Selector, it will force a full reset of the audio-fifos for all the
embedders. This is to maintain audio phase alignment over multiple audio groups. (An audio glitch in the
embedded domain will result).
If the Card uses a static/fixed amount of embedded audio groups, the user needs to check the group
selectors of inactive/unused embedded audio groups in the different main presets to be sure that they
are set correctly (or not changing), to avoid unwanted audio clicks or plops when switching presets.
INSTALLATION AND OPERATION MANUAL
Synapse GED100 | Appendix 1: Metadata Preset Modes | 55