Expander/Gate Parameters - Studer D950 Operating Instructions Manual

D950 Digital Mixing System
3.3.10.2

Expander/Gate Parameters

PAGE 1 = GATE:
PAGE 2 = EXP:
PAGE 3 = LFWD:
PAGE 4 = KEY:
PAGE 1 (GATE)
ATTENUATION:
ATTACK TIME:
HYSTERESIS:
RELEASE TIME:
THRESHOLD:
3-58 Desk Operation
The Expander/Gate parameters are available on four pages:
ON/OFF, ATTN (attenuation), HYSTERESIS (on/off), ATCK (attack
time), RLSE (release time), THRS (threshold)
ON/OFF, RATIO, ATCK (attack time), RLSE (release time), THRS
(threshold)
LFWD (look forward)
HPF (on/off), LPF (on/off), KINP (key input CHAN or PTCH), SCL (side-
chain link on/off)
The attenuation level (ATTN) can be adjusted in 1 dB steps from 0 dB FS
to –48 dB FS and MAX. The SW key functions as the gate ON/OFF key.
The gate attack time (ATCK) can be adjusted within a 200 µs to 1 ms
range, in 9 discrete steps (0.2 ms, 0.3 ms, 0.4 ms, 0.5 ms, 0.6 ms, 0.7 ms,
0.8 ms, 0.9 ms, 1 ms).
The gate hysteresis function provides an offset between the un-mute and
mute thresholds. This means the gate will remain open (un-muted) at a
lower level than the level than was required to open it. For example, a
threshold can be set so that amp noise from an electric guitar will be at-
tenuated until the guitar is played. However, as the guitar sustains and
loses energy (level) over time, the gate will remain open at levels below
that which caused it open in the first place (un-mute threshold). Once the
level falls far enough, the gate will close (mute) again. The hysteresis can
be switched ON/OFF using the SW key located within the second LACP
section.
The gate release time (RLSE) can be adjusted within a 10 ms
through 10 s range, in 13 discrete steps (10 ms, 20 ms, 30 ms, 50 ms,
100 ms, 200 ms, 300 ms, 500 ms, 1 s, 2 s, 3 s, 5 s, 10 s).
The gate threshold (THRS) can be adjusted in 1 dB steps from 0 dB FS to
-96 dB FS .
SW V3.3 Date printed: 03.09.03