Akai CD3000XL Operator's Manual download pdf (Page 198)

EFFECTS EDIT

Page 192 S3000XL Operator’s Manual

REVERB EFFECTS

Besides all the effects described so far, the effects processor also has a reverb effect on

each of the four channels.

NOTE: The multi effects described above relate only to the multi-effects channels 1 and 2.

They are not available on effects channels 3 and 4 which are reverb only.

Reverb is a delay effect we experience almost everyday. Whether we are in a bathroom or

a cathedral, most acoustic environments have some form of reverberant characteristic. It

is probably THE most important effect and has the most pronounced effect (no pun

intended) on our perception of a sound largely because we are so used to hearing it all

around us every day. This is why a sound with reverb (even if it is just the smallest hint)

sounds better and more ‘alive’ and realistic than a ‘dry’ sound with no reverb.

If you imagine you are in a large hall and you clap your hands, the sound travels outwards

to the walls and bounces off them and we hear those reflections. Because the reflections

are bouncing off the walls at many different angles, the effect is that you hear the familiar

reverberant ‘smudge’ or ring after the initial sound.

In this example, we can only see the one elevation but the sound will also be bouncing off

the side walls as well as the walls behind you to build up a dense reverberation pattern.

Characteristics of the room determine the sound of the reverberation. For example, a

large room or hall will give a long reverberant decay but, the same room or hall filled with

wall-to-wall velvet drapes will give a shorter, duller reverberation as the drapes absorb all

the high frequencies. In a small tiled room, you can get quite a pleasing short reverb

(which is why so many people sing in the shower!) where the highly reflective tiled surfaces

cause the sound to bounce around and build up a dense reverberation quite quickly. It

also takes a certain time for the sound to get to the walls and then travel back to your

ears - this is called the PRE-DELAY time and the larger the acoustic environment, the

longer the pre-delay time (usually!). Graphically, reverb ‘looks’ a bit like this:

PRE-DELAY

DECAY TIME

SOUND REVERBERATION

1 2 ... 193 194 195 196 197 198 199 200 201 202 203 ... 312 313

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Akai CD3000XL Operator's Manual Page 198