=====DP4 Hall=====

According to developer [[MikeAudet Mike Audet]], //"The DP/4 Hall is an adaptation of the DP/4 Hall algorithm ported to the ESP2 chips found in both PARIS and the DP/PRO. To my ears, this sounds smoother and fuller than my DP/4, but it definitely retains the character of the original. This is my new favourite reverb."//

[[http://kerrygalloway.com/PARIS%20resources/installingpluginsandmore.pdf Installing DP4 Hall]] (.pdf)

{{image url="http://kerrygalloway.com/PARIS%20resources/DP4Hall.jpg" title="NoLimit" alt="NoLimit"}}

====Controls explained:====

**Decay:**

Controls the amount of time for the reverb to decay

**Low Decay:**

Acts as a tone control and will boost (positive values) or cut (negative values) the rate at which low frequencies decay

**Damping:**

Controls the attenuation of high frequencies in the decay of the reverb

**High BW:**

A low-pass filter on the signal going into the reverb

**Diffuser 1:**

Smears the input signal transients

**Diffuser 2:**

Smears the input signal transients at lower frequencies than Diffuser 1

**Definition:**

Controls the rate at which echo density is increased with time

**Detune Rate:**

Controls the LFO rate of detuning introduced into the reverb decay

**Detune Depth:**

Controls the depth of the detuning

**Primary Send:**

Controls the level of the diffused input signal into reverb definition

**Ref 1 - 2 Level:**

Controls the level of the first/second pre-echo

**Ref 1 - 2 Send:**

Controls the level of the first/second pre-echo sent directly to the output

**Ref 1 - 2 L/R:**

These four controls control the right and left delay time of the first and second pre-echoes

**Out Balance:**

Pans the reverb's output

**Predelay:**

Adjusts the time it takes for the original signal to reach the reverb

**Position 1 - 3:**

Controls the levels of a mic placed in front, in the middle, and at the rear of the hall.

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**Bugs/peculiarities:**

None reported

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**Suggested Applications and Settings:**

Main reverb.