BSS Audio OPAL Series DPR-522 Owner's Manual - Manual (Page 19)

19
6.16 Gate open
indicator
If the gate is not passing program, the SHUT LED is illuminated. If it is passing
program, the OPEN LED is illuminated.
These LEDs fade from one to another during the attack and release times, their
relative intensity gives a visual indication of the dynamic response of the
gating action.
One thing to remember is that during the attack and release phases, as stated
earlier, the DPR-522 uses a logarithmic control law to give a smooth fade to
the sound. When this is applied to the LEDs, especially for long release times,
it may appear as though nothing happens for a while. What is in reality
happening is that the sound and LEDs are fading but the LEDs are initially
fading too slowly to be obvious.