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The t.racks ACHAT DSP24 User Manual

The t.racks ACHAT DSP24
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ACHAT DSP24 • OWNER’S MANUAL
14
The following is an example screen for the “Delay” page where
the delay time of input channel A is set to 160.1872 ms:
EQ: [x] sub-menu from this sub-menu it is possible to set ve
available parametric or shelving lters for the input channels.
The DSP24 allows the user to select either bell or shelving
Parameters and assign them independently using the 5
available lters.
In order to select the lter type, it is necessary to have the
lters GAIN=0.0dB. Then using the PM2 encoder, rotate it
“clockwise” in order to set the bell lters bandwidth, or rotate
it “counter-clockwise” to select the shelving lter type (low or
high) and its order (1
st
or 2
nd
).
So, in order to dene the lter type for the lter number 1
(“x”=1), it is necessary from the above screen, to enter the
lters editing page pressing the ENTER button, and the screen
has to appear as follows:
In this case, the lters GAIN=0.0dB, and being BW=1.05, the
current lter selected is a bell type now. Rotating the PM2
encoder clockwise, the parameter BW will range from 0.05 up
to 3 for identifying a bandwidth value for a bell lter.
If a bell lter is selected, then the gain can be modied from
0.0dB and the BW will range between 0.05 and 3.
If the user wants to select a shelving lter from the above
setting, with the GAIN=0.0dB [if the GAIN is not 0.0dB, it is
necessary to set it at 0.0dB using the PM3 encoder], rotate
the PM2 counter-clockwise. Once BW reaches the 0.05 value,
at the next step of the PM2 counter-clockwise rotation, the
selection of the shelving lters will be entered.
Still rotating the PM2 counter-clockwise, the shelving lters
and their order will be selectable in the following sequence:
1. 1
st
order Low Shelving = 6LoSh [on the screen]
2. 2
nd
order Low Shelving = 12LoSh [on the screen]
3. 1
st
order High Shelving = 6HiSh [on the screen]
4. 2
nd
order High Shelving = 12HiSh [on the screen]
Once the desired shelving lter is selected, the PM3 can then
be used to select the desired GAIN and when the GAIN is set
at a value different from 0.0dB, then the lter type cannot be
changed until this GAIN is returned to 0.0dB.
BELL Filter: As an example, if you want to set a bell lter
within EQ-1, then the BW has to be set at a desired value of
say 1.00 using the PM2 encoder, the GAIN at say +3dB using
the PM3 encoder and the centre frequency at say 1.00kHz with
the NAV/PM1 encoder.
The EQ sub-menu screen will show the following:
Once in the bell lters edit screen all the lters parameters can
be modied using the “NAV/PM1”, “PM2” and “PM3” encoders
for editing the lters centre frequency, bandwidth BW and gain.
The centre frequency of the parametric lter can be edited
using the “NAV/PM1” encoder, the BW the “PM2” encoder and
the gain the “PM3” encoder:

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The t.racks ACHAT DSP24 Specifications

General IconGeneral
BrandThe t.racks
ModelACHAT DSP24
CategoryComputer Hardware
LanguageEnglish