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7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
6.31.2.22. RF Overmod Protect Control
This control allows the user to author the RF Overmod Protect Control metadata for the Dolby bit-stream.
This parameter is designed to protect against over modulation when a decoded Dolby Digital bitstream is
RF modulated. When enabled, the Dolby Digital encoder includes pre-emphasis in its calculations for RF
Mode compression. The parameter has no effect when decoding using Line mode compression. Except in
rare cases, this parameter should be disabled.
The RF Overmod Protect drop down menu provides the following options:
Disable
Enable
6.31.2.23. RF Mode
This control allows the user to author the RF Mode metadata for the Dolby bit-stream. Six preset DRC
profiles are available for content producers: Film Light, Film Standard, Music Light, Music Standard,
Speech, and None. The RF Mode drop down menu provides the following options:
Film Light
Film Standard
Music Light (No
early cut range)
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Filter is disabled.
Filter is enabled.
Max Boost: 6 dB (below –53 dB)
Boost Range: –53 to –41 dB (2:1 ratio)
Null Band Width: 20 dB (–41 to –21 dB)
Early Cut Range: –26 to –11 dB (2:1 ratio)
Cut Range: –11 to +4 dB (20:1 ratio)
Max Boost: 6 dB (below –43 dB)
Boost Range: –43 to –31 dB (2:1 ratio)
Null Band Width: 5 dB (–31 to –26 dB)
Early Cut Range: –26 to –16 dB (2:1 ratio)
Cut Range: –16 to +4 dB (20:1 ratio)
Music Light (No early cut range)
Max Boost: 12 dB (below –65 dB)
Boost Range: –65 to –41 dB (2:1 ratio)
Null Band Width: 20 dB (–41 to –21 dB)
Cut Range: –21 to +9 dB (2:1 ratio)
Revision 1.1.1
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