Crestron
QM-RMCRX
QuickMedia™ Receiver/Processor
Detail View of Graphic Equalization Module
The QM-RMCRX provides 10 trim presets, where a trim preset is the set of all
available (maximum of 10) <
TrimBand
> values for the graphic EQ filters.
The <
TrimBand
> inputs adjust the gains of the graphic EQ filters. The gains
are adjustable within a range of -12dB to +12dB. Valid analog values range
from -120 (-12dB) to +120 (+12dB). 2-Series symbols such as the Analog Scaler
with I/O Limits and Analog Ramp (Bounds Limited) are capable of handling
range and sign mapping.
A <
TrimBand
> value of 0 (0dB) means that the signal will pass unaffected.
Values above and below 0 will boost or reduce the gain in increments of .1dB.
That is, changing the analog value by 1 signifies a boost or attenuation of 0.1
decibels.
All <
Save
> and <
Recall
> inputs are level sensitive. Thus when
<
SaveTrimPreset
> is driven high, the ten trim band values will be saved in the
indicated <
TrimPreset#
>. Valid values for <
TrimPreset#
> range from 1 to 10.
Similarly, when <
RecallTrimPreset
> is driven high, the values stored in
<
TrimPreset#
> will be recalled and immediately propagated to the outputs.
Here the <
TrimBand_F
> feedback signals may have different values than their
corresponding inputs.
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 unaffected. This is the same as recalling a trim preset in which every trim
band value is set to 0.
In addition to the 10 trim presets, the QM-RMCRX provides five filter presets,
where a filter preset is a set of six filters. A filter consists of the center
frequency, gain, bandwidth and filter type (EQ, high/low pass, treble/bass shelf)
Operations Guide – DOC. 6236A
QuickMedia™ Receiver/Processor: QM-RMCRX
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