Attack Control; Release Control; Compressor Output Control - Art PRO CHANNEL II Service Manual

Attack Control

The ATTACK control sets the time it takes the Compressor/Limiter to respond to increases in signal
level (by reducing gain). You can use this control to shape the "front end" of the dynamics envelope.
One example is to listen to a snare hit and adjust the attack control. A short attack makes the snare
sound "thin". As the attacks go longer (and the knob is turned clockwise) you should hear more of the
thump in the compressed snare. The downside is that this creates an overshoot, (a large transient),
the length of which is the time set by the ATTACK control.
Overshoots less than 1 msec are very hard to hear even when they are clipped. If the attack is set
too fast, the gain may be reduced too much and thereby create a "pumping" sound
eliminate this is to use the LOW CUT filter to remove plosive sounds in vocals that can make the
detector overreact.

Release Control

The RELEASE control sets the time the Compressor/Limiter takes to increase the gain after the
input level drops.
Longer settings maintain the dynamics of the input signal, while shorter settings reduce the
dynamics. Shorter settings will also increase the apparent reverberation, and at extreme gain
reduction settings, lead to "breathing" artifacts

Compressor Output Control

The Output control can provide from10dB of gain recovery to fully muting the output. It adjusts the
output level provided to the COMP output jack.
1
"Pumping" in a Compressor/Limiter sounds like the processor over-reacts to the increase in level and has reduced the
volume too much.
2
"Breathing" is the sound of the Compressor/Limiter turning up the gain so quickly you can hear breathing noises between
words during vocal processing.
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. One way to