TC Electronic DB4 MKII - Manual (Page 77)

ATX / DX
English Manual 73
frozen for the duration of the Hold time. When
the Hold period expires, the Gain Correction falls
back to 0 dB gain.
Slow window
Level Trim
Range: -18 dB to + 18 dB
When using the Multiband algorithm, DB8/DB4
operates with 48 bit precision on all audio inter-
nally and it is possible to correct loudness manu-
ally without the risk of overloads. The Level Trim
can be used for permanent offsets or live loud-
ness adjustments.
Ratio
Range: 1:1.25 to 1:6
Ratio is the steering factor used when the Loud-
ness 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 1 dB/Sec produc-
es a gain change gating effect when the Output
level is already in the target zone, while values
above 4 dB/Sec will add density to sound.
Slow Window
Range: 0 to 20 dB
The slow window is the area around the set Tar-
get Level.
Within the slow window the Loudness is only
gently controlled. When the signal exceeds the
limits of the Slow Window the Loudness is treat-
ed more radically. Depending on the set Average
Rate and Ratio.
Loudness Measure
Select between TC GRID or standard ITU
BS.1770.
Multiband parameters
ATX / DX algorithm – EQ page
ATX / DTX algorithm EQ page
Introduction
This digital EQ features a four-band parametric
EQ with high- and low-pass filters switchable
between Notch, Parametric, Shelving and Cut