Section 2 — Algorithms
ENSONIQ DP/4+ Reference Manual 39
08 — Expander Gate Hold Time Range: 1ms to 10.0s
This is the detection sustain time in the ADSR which constitutes attack, sustain, and release.
09 — Sidechain EQ Gain Range: -48 to +48 dB
Controls the amount of boost applied to the output signal of the high/low pass filter. This
accounts for insertion loss through those filters.
10 — HighPass Fc Range: 4 to 8000 Hz
This sets the cutoff frequency of the lower frequency band high pass shelving filter.
11 — LowPass Fc Range: 100 Hz to 16 KHz
Sets the amount of boost or cut applied to the low pass filter.
12 — Trigger Mask Range: Off or On
This parameter enables the trigger mask function. Once triggered, the side chain detector will see
no input signal for a duration specified by parameter 13.
13 — Time Range: 1ms to 10.0s
Sets the duration over which the side chain detector will be blacked out. This parameter is useful
for isolating the first beat of a drum track.
14 — Trig Mask Lower Threshold Range: -96 to +00 dB
This sets the trigger mask threshold level. Signals that fall below this level will trigger the mask
function. The trigger mask function uses the Expander Threshold (04) as upward hysteresis.
Therefore, the Trigger Mask Threshold should always be set lower than the Expander Threshold.
15 — Expander Output Gain Range: -48 to +48 dB
Sets the amount of loss (negative values) or gain (positive values) applied to the expander on the
output volume. We recommend a starting application of +00 dB.
16 — Mod1 Source 20 — Mod2 Source
17 — Mod1 Destination 21 — Mod2 Destination
18 — Mod1 Param Range Min 22 — Mod2 Param Range Min
19 — Mod1 Param Range Max23 — Mod2 Param Range Max
See the descriptions under the Algorithm Modulators earlier in this section.
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