Filter
Top Products
Crestron C2N-VEQ4 Cresnet 4-Channel Digital Volume Control
Operations Guide - DOC. 6135A Cresnet 4-Channel Digital Volume Control: C2N-VEQ4 • 19
C2N-VEQ4 Mixer Controls Symbol Input Descriptions
Signal Type Name Value Definition
Analog In1-For-Out1 through In4-
For-Out1; In1-For-Out2
through In4-For-Out2; In1-
For-Out3 through In4-For-
Out3; In1-For-Out4 through
In4-For-Out4
0 to -800 0dB to –80dB
Each analog increment of 1 = 0.1 dB
Trim Controls – Slot 9, SubSlot 3
NOTE: Minimum operating firmware version 3.039 is required for 2-Series control
systems to operate the parametric equalizer features.
NOTE: Equalization trim/filter controls are not available in an X-Generation system.
TrimBand
TrimBand refers to a modification of the gain of the forty graphic filters.
There are ten trim presets. A trim preset is a set of all forty TrimBands. (The
TrimBands are not labeled with actual frequency values since they can be changed in
the Digital Media Tools or by setting the full parametric filters in the symbol.) Trim
presets can be used to modify the soundfield for different kinds of music where you
might want to emphasize the bass, or bring out a treble frequency.
Programming in SIMPL Windows
Each channel has a set of ten TrimBand inputs. The TrimBand inputs only adjust the
gains of the gain-adjustable filters; thus <TrimBand1-1> corresponds to channel 1,
filter 1; <TrimBand1-2> corresponds to channel 1, filter #2; <TrimBand2-1>
corresponds to channel 2, filter 1, and so forth. The gains are adjustable within a
range of -10dB to +10dB. All TrimBand values propagate immediately to the outputs.
TrimBand values are added to the gain values of the filters. If Gain = 10 dB and Trim
= -3 dB, the result is 7 dB
Valid values for TrimBand range from -120 (-12dB) to +120 (+12dB). 2-Series
symbols such as the Analog Scaler with I/O Limits and Analog Ramp (Bounds
Limited) can handle range and sign mapping.
A TrimBand value of 0 (0dB) means that the signal will pass unaffected. Values
above and below 0 boost or reduce the gain in increments of 0.1dB. That is, changing
the analog value by one signifies a change in boost or attenuation of 0.1 decibel.
The C2N-VEQ4 provides ten trim presets, where a trim preset is a set of all forty
TrimBand values.
On the rising edge of <SaveTrimPreset>, the forty TrimBand values will be stored in
the preset specified by <TrimPreset#>. Valid values for <TrimPreset#> range from
1 to 10.
On the rising edge of <RecallTrimPreset> the values stored in the indicated
<TrimPreset#> will be recalled and propagated to the outputs. Here the
<TrimBand#-#_FB> outputs may have different values than the TrimBand inputs
(the only time these values will differ).
If <RecallTrimPreset> goes high and <TrimPreset#> is set to an invalid value (out
of the 1 to 10 range) all trim settings will be cleared, and all signals will pass with
Signal Descriptions