DigiTech QUAD4 User Manual download pdf (Page 19)

Prim & Secd

Decay

Controls the length (RT60) for the Primary and Secondary reverbaration stages. This Paramter

interacts with the SIZE and REFLCT Parameters. Larger SIZE and REFLCT settings will allow

longer reverb decay times while smaller settings reduce the length of the reverb decays but

produce better small environment emulations. Ranges from .26 to 11 seconds.

Prim & Secd

Size

These two Parameters change the relative room size of the Primary and Secondary reverb

stages. Ranges from 1 to 5.

Prim & Secd

Reflct

These two Parameters control the simulation of energy loss of sound each time it is reflected.

Hard, smooth materials like glass and wood have more reflectivity that softer, more porous

materials. This control can be thought of as determining the "liveness" of the room. Ranges

from 1 to 10.

PARAM. DESCRIPTION Reverbs (continued)

OutL - R

Adjusts the overall level of the left or right side of the reverb. Ranges from OFF to 100%.

Blend

The BLEND control cross-mixes reverberations from the left side into the right side and

vice-versa. This can be used to increase the realism of the simulated room by adding

reverberations from different parts of the room to each channel. Varies from 0% to 99%.

Gated Reverb

St. Gated Reverb

Spring Tank

Stereo Gigaverb

Gigaverb

Stereo Reverb

Reverb

Room Echo

✓✓

✓

✓✓

✓

Delay B

Sets the length of time between hearing Delay Group A and Delay Group B. Ranges from

0 to 120 milliseconds.

✓

Delay C

Sets the length of time between hearing Delay Group B and Delay Group C. Ranges from

0 to 120 milliseconds.

✓

Delay D

Sets the length of time between hearing Delay Group C and Delay Group D. Ranges from

0 to 120 milliseconds.

✓

Decay

Controls the length (RT60) of the room reverberations. This one control could have been

divided among Size and Reflection controls but has been simplified here for easier use. To

simulate a large room, use longer DECAY settings. For small rooms, use shorter DECAY

settings. For more natural sounding reverbs, you may also want to decrease the DENSITY

setting as DECAY is shortened. Ranges from .5 to 23 seconds depending on the Reverb

Type currently selected.

✓

Prim OutL

Adjusts the overall level of the left side of the Primary reverb. Ranges from OFF to 100%.

Delay A

Sets the length of time before hearing Delay group A. Ranges from 0 to 120 milliseconds.

✓

✓✓

Prim OutR

Adjusts the overall level of the right side of the Primary reverb. Ranges from OFF to 100%.

✓✓

Secd OutL

Adjusts the overall level of the left side of the Secondary reverb. Ranges from OFF to 100%.

✓✓

Secd OutR

Adjusts the overall level of the right side of the Secondary reverb. Ranges from OFF to 100%.

✓✓

Prim & Secd

Blend

These two parameters adjust the amount of BLEND for the Primary and Secondary reverb

stages. See BLEND above for a complete parameter description.

✓

Shape

Selects the shape of the output levels for the delay group taps. Shape selections are: Flat,

Peak, Decreasing, Increasing, Shelf, and Reverse Shelf.

✓

Spread

Controls the width of the effect's stereo imaging. Ranges from 1 to 10

✓

FB: Dly

Sets the amount of time before the delay is fed back into the signal. Ranges from 0 to 170 ms.

✓

Amount

Sets how much delay is fed back into the signal. Ranges from Off to 50%.

✓

Out A-D

Controls the output level of the Delay Groups. Ranges from Off to 100%.

✓

Bal A-D

Controls the Left-Right balance of the Delay Groups. Ranges from -99 to 99.

✓

Section 3 - Effects and Parameters

Quad 4 User's Manual

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DigiTech QUAD4 User Manual Page 19

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