7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
Page - 174
Revision 1.1.1
6.50.4.2. Compander Profile
The compander profiles are used to define the dynamic range control of the compander. There are 5
default profiles.
Film Standard
The
Film Standard
profile is used to compress/expand sporting events, and movies
with a large dynamic range.
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)
Film Light
The
File Light
profile is used to compress/expand light movies or program content
such as dramas or content with less dynamic range.
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)
Speech
The
Speech
profile is used to compress/expand content such as news,
documentaries or “talking head” type content.
Max Boost: 15 dB (below –50 dB)
Boost Range: –50 to –31 dB (5:1 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 Standard
The
Music Standard
profile is used in most typical music environments such as
concerts, music videos and music content with a wide dynamic range.
Max Boost: 12 dB (below –55 dB)
Boost Range: –55 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
The
Music Light
profile is used to compress/expand music content with a narrow
dynamic 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).
6.50.4.3. Makeup Gain
The
Makeup Gain
is used to add additional gain to the audio program. This control would be used if the
final desired target loudness has not been reached. The makeup gain control has a range of 0 dBFs to
20 dBFs.