User Guide

ACCESS VIRUS OS4 169
Delay/Reverb
dial in the minimum value, the
decay time is extremely short so
you’ll hear just the early reflec-
tions. At the peak value, no energy
is lost so the decay time is infinite,
which is of course physically
impossible in the real world.
01111111111111111112
1 REVERB
DecayTime 16≤
61111111111111111154
REVERB DAMPING
This parameter controls high-fre-
quency attenuation of the room’s
fading reflections.
In a real room, walls don’t reflect
high frequencies as well as they do
lower frequencies, an effect that
can be likened to natural low-pass
filtering of the sound. The longer
the sound travels, the more often
it bounces off walls and the more
intense this filtering effect. For this
reason, the amount of high-end
damping depends on the amount
of time that the signal carries - the
signal thrown back by the room
becomes muddier as time goes by.
This effect is stronger with walls
that have soft surfaces (wood,
wallpaper) than it is with walls
that have hard surfaces (glass,
tiles). Consequently, high-end
damping has a significant influ-
ence the vibe and warmth of the
room sound.
01111111111111111112
1 REVERB
Damping 12≤
61111111111111111154
Reverb Type Pre-delay
Ambience with up to 500 ms of pre-delay
SmallRoom with up to 400 ms of pre-delay
LargeRoom with up to 300 ms of pre-delay
Resonance with up to 150 ms of pre-delay