ACHAT DSP24
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OWNER’S MANUAL
17
Limiter:
from this page it is possible to set the output channel
limiter.
The following is an example screen for the limiter page where
the attack time of the limiter is set at 5ms, the release time is
set at 0.2 sec and the limiter active threshold is set at +5dB:
Once pushing ENTER the limiter’s parameters can be modified
using the “NAV/PM1”, “PM2”, and “PM3” encoders for editing the
limiters attack time [A], release time [R] and active threshold.
Once pushing ENTER the above screen will change as follows:
The attack time [A] can be edited using the “NAV/PM1” encoder,
the release time [R] by using the“PM2” encoder and the limiter
active threshold by using the “PM3” encoder.
“Attack time [A]”:
the selectable range of the limiters attack
time is from 5ms to 200ms in steps of 1ms (from 5ms to 20ms)
then 5ms (from 20ms to 30ms) then 10ms (from 30ms to
100ms) and 20ms (from 100ms to 200ms).
The limiters attack time can be adjusted by rotating the “NAV/
PM1” encoder.
“Release time [R]”:
the selectable range of the limiters release
time is from 0.1s to 3s in steps of 0.1s and can be adjusted by
rotating the “PM2” encoder.
“Limiter Active Threshold”:
the selectable range of the limiters
threshold is from +20dB (limiter not active) to -10.0dB in steps
of 0.2 dB and can be adjusted by rotating the “PM3” encoder.
Note 1:
once the desired options have been selected using the
3 encoders, they are automatically saved as current and stored
in the DSP24 system status once leaving the page.
Note 2:
to exit this page, push the “ESC” button.
Polarity:
from this page it is possible to set the output channels
polarity, by using the “PM1” or “PM2” encoders.
The polarity can be “Normal” or “Inverted” (which means
rotated of 180 degrees). The following is an example of a
“Polarity” screen where the polarity of output channel 1 is set
to “Normal”.
HPF:
from this sub-menu it is possible to set the output
channel high pass filter (HPF). The following is an example of a
HPF sub-menu screen with the filter set at 24dB Linkwitz/Riley
on output 1, using the name “High” (see later for assigning a
name to the outputs):
The filter parameters can be modified by using the “PM2” and
“PM3” encoders for editing the filters low cut frequency and the
filter type and order.
The low cut frequency of the high pass filter can be edited
using the “PM2” encoder and the filters type and order can be
edited by using the “PM3” encoder.
“Low cut frequency”:
the selectable frequencies range is from
20Hz to 20kHz in steps of 1/24 of an octave and can be adjusted
