ENSONIQ DP/2 Specifications download pdf (Page 82)

Section 2 — Algorithms

66 ENSONIQ DP/4+ Reference Manual

NON LIN REVERB 1, 2, 3

Non Linear reverbs can be used to obtain blooming reverb, gated reverb, reverse reverb and early

reflections. In general, they do not produce an exponentially decaying reverb. Unlike the hall,

room and plate reverbs, Non Lin 1, 2, and 3 pass the input signal through the reverb diffusers

only once. For this reason the reverb diffusers are called Density, to distinguish them from the

other reverb diffusers (called Definition). Density controls the amount of echo density, as

opposed to the rate of increase of echo density. Other reverbs give limited control of early

reflections. For more control, try using these algorithms in serial or parallel with other reverbs to

emphasize the early reflections. The Non Lin reverbs purposely impose a coloration on the

resulting sound.

Non Lin 1 is optimized for shorter duration effects (approx. 0.5 sec.).

Non Lin 2 offers approx. a 1.5 sec. duration.

Non Lin 3 is sonically similar to Non Lin 1, but there is less stereo movement, making it better

suited for drum tracks.

Non Lin Reverb Signal Routing

Echo Time

Right

Diffuser

LPF

Main

Outputs

Left

Density

LPF

Echo Time

Density

The signal goes directly through a diffuser which smears the signal. The signal is then routed to

a decay diffuser (Density), and is diffused over a period of time. Within the density the signal

goes through a high frequency damper. The signal is then routed to the output. After the

density, the signal passes through a low pass filter. There are two echo times between the

diffuser and the density. There is also an external dry signal (not shown) that goes directly from

the input to the output and is controlled with the mix parameter (01).

01 — Mix

02 — Volume

See the descriptions under the Mix and Volume Parameters, in the beginning of this section.

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ENSONIQ DP/2 Specifications Page 82