d&b audiotechnik XSLi12 Посібник - Сторінка 8
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Друкувати сторінкуFrequency response correction of the CPL function
for low and low-mid fequency level*
*schematic diagram
8
Line and Arc setups
The selection of "Line" or "Arc" depends on the curvature of the
array. Both setups may be used within one array.
The "Line" setup is used for long throw array sections with three or
more consecutive splay settings of 0°, 1° or 2°. Compared to the
"Arc" setup, the "Line" setup considers the different cabinet
interaction effects between straight and curved section of an array.
The Arc setup is intended for line array loudspeakers when used in
curved array sections.
AP setup
In connection with d&b ArrayProcessing (AP), the AP setup
contains the AP data that is generated by the ArrayCalc simulation
software and transferred to the applicable amplifiers via the d&b
Remote network (OCA/AES70) using R1.
As soon as the data has been sent to the amplifiers, the AP setup is
automatically activated.
2.3.1 Controller settings
For acoustic adjustment the functions CUT, CPL and HFC can be
selected.
CUT mode
Set to CUT, the low frequency level of the cabinets is reduced. The
XSLi8/XSLi12 array is now configured for use with applicable d&b
subwoofer.
CPL function
The CPL (Coupling) function compensates for coupling effects
between the cabinets by reducing the low and low-mid frequency
level.
The SL-Series setups provide a two-stage filter (Low/Mid), which
allows the independent shaping of the low and low-mid responses.
The characteristcs of the CPL function are shown in the diagram
opposite. The standard setting (0) maintains the default array
response. CPL values can be set in the range from +5 to –5 (Low)
and from 0 to –8 (Mid) in increments of 0.5.
Note: Please note that all cabinets within the array should be
operated with the same CPL setting.
When processed conventionally (Line/Arc), the larger the array
the more attenuation by CPL will be required to achieve a
neutral response.
When operated with ArrayProcessing (AP), an array will
automatically be provided with the system target response, as
shown in the graphic opposite. All coupling effects caused by
the array length and shape are considered in the AP data. The
CPL function may still be used for additional corrections, for
example of room properties or coupling effects between main
hangs and outfills.
d&b XSLi8/XSLi12 Manual 1.1 en