Section 2 — Algorithms
ENSONIQ DP/4+ Reference Manual 67
TIME
ENVELOPE LEVEL 1
ENVELOPE LEVEL 9ENVELOPE LEVEL 2
SIGNAL
LEVEL
03 — Envelope Level 1
04 — Envelope Level 2
05 — Envelope Level 3
09 — Envelope Level 4
07 — Envelope Level 5
08 — Envelope Level 6
09 — Envelope Level 7
10 — Envelope Level 8
11 — Envelope Level 9 Ranges: 00 to 99
These parameters control the output tap levels sequenced in time across the density from input to
output. Envelope Level 1 is tapped right after the diffusers and before the echoes (see the
topology). If this is undesirable, set Envelope Level 1 to 00. Envelope Levels 8 and 9 are
positioned at the very end of the Density; setting these too high can cause excessive ringing.
Envelope Levels 8 and 9 are also very dry. Set all nine tap levels to find the envelope for your
application. We recommend the average Envelope Level not to exceed a value of 45 to prevent
overdriving these three reverbs.
12 — NonLin HF Damping Range: 00 to 99
The HF Damping is located within the density. This parameter selects the amount of high
frequency energy to be filtered out.
13 — NonLin HF Bandwidth Range: 01 to 99
The high frequency bandwidth parameter acts as a low pass filter on the output signal,
controlling the amount of high frequencies that will be heard. The higher the setting, the more
high frequencies are heard. This works the same way that a tone control would work on a guitar.
14 — NonLin Diffusion1 Range: 00 to 99
This parameter smears the input signal transients of higher frequency ranges. Higher values are
recommended for smoother percussion. Very low values will give a highly repetitive echo-like
sound. Diffusion1 and 2 exist within each diffuser block (see diagram).
15 — NonLin Diffusion2 Range: 00 to 99
Diffusion2 is similar to Diffusion1, but offers control of lower frequencies. In general a setting of
50 can be considered an equal mix of dry/diffused sound; this setting is a good starting point.
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