TC electronic SDN BHD P2 - Manual (Page 29)

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LOUDNESS PAGE
Level Trim
Range: -18dB to + 18dB
Because P2 operates with 48 bit precision on
all audio internally, it is possible to correct
loudness manually without the risk of
overloads. The Level Trim can be used for
permanent off-sets or live loudness
adjustments.
Ratio
Range: 1:1.25 to 1:6
Ratio is the steering factor used when the
Loudness Control applies boost or attenuation
to reach the Target Level. The higher ratio, the
more rigid steering towards the Target Level.
Average Rate (Avg Rate)
Time constants in the Loudness Control are
changed dynamically with the Input signal
based on computations by multi-level detectors.
When the Output level is close to the Target
Level, gain changes are relatively slow.
The Average Rate offsets all time constants to
be faster or slower. Values below 1dB/Sec
produces a gain change gating effect when the
Output level is already in the target zone, while
values above 4dB/Sec will add density to
sound.
Slow Window
Range: 0 to 20 dB
The slow window is the area around the set
Target Level.
Within the slow window the Loudness is only
gently controlled. When the signal exceeds the
limits of the Slow Window the Loudness is
treated more radically. Depending on the set
Average Rate and Ratio.