Section 2 — Algorithms
58 ENSONIQ DP/4+ Reference Manual
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
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
Enables the trigger mask function. Once triggered, the side chain detector will see no input
signal for a duration specified by parameter 13.
13 — Trigger Time Range: 1ms to 10.0s
This parameter sets the duration over which the side chain detector will be blacked out. This
parameter is useful for isolating the first bar of a drum track.
14 — Trigger Mask Threshold Range: -96 to +00 dB
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 Mix Range: 00 to 99
Mixes the output of the left signal (Input 1) with the output of the right signal (Input 2). This is
the output mixer which is shown in the diagram.
16 — Expander Output Gain Range: -48 to +48 dB
Sets the amount of cut (negative values) or boost (positive values) applied to the expander on the
output volume. We recommend a starting application of +00 dB.
17 — Mod1 Source 21 — Mod2 Source
18 — Mod1 Destination 22 — Mod2 Destination
19 — Mod1 Param Range Min 23 — Mod2 Param Range Min
20 — Mod1 Param Range Max24 — Mod2 Param Range Max
See the descriptions under the Algorithm Modulators in the beginning of this section.