
Operators Manual
Page 41
The
4 Series
4 Series
4 Series
4 Series
’s “D-Max” limiter predelays the sidechain signal, resulting in a “zero overshoot” limiter, which is able to
catch all peaks and provide a reliable absolute maximum setting for the output of any channel.
The predelayed sidechain is shown in green, with the main signal
in red. As the main signal arrives slightly after the sidechain, the
output from the
unit does not suffer from the overshoot
problem.
Remember that this delay is only in the order of tens of uS,and is
a
predelay
– the sidechain is moved
back
in time in relation to
the main signal. Inserting a delay into the
main
signal path of an
analogue dynamics processor will achieve similar results, but with
the penalty of delaying the main signal by the amount of look
ahead delay introduced.
The “D-Max” limiter which appears in output lists just following the traditional limiter, has only two parameters to adjust:
OP1 Output 1 ClipLim
OP1 Output 1 ClipLim
OP1 Output 1 ClipLim
OP1 Output 1 ClipLim
Rel.= Medium 10dB Above
Rel.= Medium 10dB Above
Rel.= Medium 10dB Above
Rel.= Medium 10dB Above
The release time (either
Fast
Fast
Fast
Fast
,
Medium
Medium
Medium
Medium
, or
Slow
Slow
Slow
Slow
) and the threshold. Note that the threshold is set to be a minimum
of 2dB above the threshold of the program limiter – setting the threshold to
10dB
10dB
10dB
10dB
Above
Above
Above
Above
, as in the example, means
that no more than 10dB of overshoot above the threshold of the program limiter will ever be allowed.
The release time may also be set to follow the High Pass filter of the output – this is achieved through the
Design a
Design a
Design a
Design a
Crossover
Crossover
Crossover
Crossover
sub-menu, and will result in the display changing to show
OP1 Output 1 ClipLim
OP1 Output 1 ClipLim
OP1 Output 1 ClipLim
OP1 Output 1 ClipLim
Rel.=
Rel.=
Rel.=
Rel.= Auto 10dB Above
Auto 10dB Above
Auto 10dB Above
Auto 10dB Above