Ashly mXa-1502 Operating Manual page 13

mXa-1502 • Operating Manual
Brick Wall Limiter
The brick wall limiter is a compressor with a fixed
infinite ratio. Use this limiter to prevent signal
from exceeding a designated peak level. The
limiter has threshold, attack time and release
time adjustments.
For a more natural sounding gain reduction that
allows some signal above threshold, use the
compressor.
Ashly AquaControl™ Software
Parameters:
Threshold - The signal level at which the limiter
begins to apply gain reduction to the signal.
Threshold range is -20dBu to +20dBu.
Ratio - There is no ratio control, ratio is fixed at
infinite, no signal increase above threshold.
Attack Time - The rate in mS/dB that gain
reduction occurs after the signal level crosses
threshold.
Release Time - The rate in mS/dB that gain
reduction activity stops after the signal level
drops back below threshold.
Detector Type - The detector type for the brick
wall limiter is set to peak detect only.
Compressor
The compressor function offers adjustable
threshold, ratio, attack time, release time, plus
selection of either peak or average detector.
Up to four attenuation bus assignments are also
offered, allowing multiple compressor blocks to
track together, ie for stereo signals.
Parameters:
Threshold - The signal level at which the
compressor begins to apply gain reduction
to the signal. Threshold range is -20dBu to
+20dBu.
Ratio - The amount of gain reduction applied to
signal level above threshold. Range is 1.2:1 to
infinite.
Attack Time - The rate in mS/dB that gain
reduction occurs after the signal level crosses
threshold.
Release Time - The rate in mS/dB that gain
reduction activity stops after the signal level
drops back below threshold.
Attenuation Bus 1-4 - All compressors
assigned to the same attenuation bus will apply
the largest amount of gain reduction from
any one of the assigned compressors. This is
typically used for tracking compression across
stereo signals.
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