Use the ‘Up’ key to move the cursor until it
rests under MODE.
The Display shows:
Press ‘Edit’ again
The Display shows:
Press the ‘Down’ key until ‘reverb only’
appears.
The Display shows:
Press ‘Edit’ again to take you into the Reverb
menu.
The Display shows:
Use the down key to move the cursor until it
rests under REVERB, then press ‘Edit’ again to
display the parameters.
The Display shows:
Use Data Control
❶
to adjust the decay (range
from 00 - 99).
Data Control
❷
to select the type (Room, Plate,
Hall & L.Hall).
Data Control
❸
to select the character (Dark,
Warm, Standard & Bright).
To select the decay shaping option press the
‘Up’ key.
The Display shows:
Pressing the ‘Down’ key returns the Reverb to
normal decay mode.
Press ‘Edit’ to return to the Reverb menu.
If you are happy with the effect that you have
programmed the next step is to name and store it.
For these procedures see Sections 10 & 11 or the
Quick Set-up guide 2.3 & 2.4.
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15
14
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Natural reverberation occurs after a sound has
been made in any enclosed space. The amount and
type of reverberation depends entirely on the size of
the space and the nature of the environment. For
example hard surfaces such as wood or bare walls
will give a different reflective character to softer
surfaces such as curtaining etc. Reverb can be
thought of as a multitude of echoes so densely
spaced that the ear hears them as a continuous
sound. As these sounds are absorbed and reflected
by the surrounding boundaries so they die away or
‘Decay’.
The JFX-1 emulates as many different
reverberant spaces as you could possibly need, with
great quality and uses a format which is very easy to
edit.
8.1 - Reverb Types
The JFX-1 features four reverb types which are
selected using Data Control
❷
.
Room :
Which simulates the shorter reverb
times presented by a room.
Plate :
Simulates the ‘Plate’ type of Reverb
used in the early days of recording. This
electro-mechanical device involved suspending
a thin piece of steel with a small speaker type
device at one end. Transducer pick-ups placed at the
other end would pick up the excitations delayed as
they passed through the steel. Though the character
of this type of reverb is most popular for vocal and
drum tracks - it can also produce interesting effects
for the guitar.
Hall :
Much larger than a room, the reflections
in a hall are much longer due to the higher
ceiling and extra distance over which the sound
has to travel.
Large Hall :
The Large Hall setting extends
the reflections even further and produces the
simulation of huge spaces with very high
ceilings and extra long decay characters.
8.2 - Reverb Characters
In addition to the four reverb types, the JFX-1
also contains four quite distinct programmable
reverb characters. By careful adjustment of the
frequency content of the decay we have made each
character equate to a change in the reverb
environment. They are selected using the Data
Control
❸
.
Dark :
By damping certain top end and low end
frequencies this selection gives the effect of a
heavily curtained and carpeted area where sound
reflections would be heavily deadened.
Warm :
Slightly less damping of top end and low
end frequencies gives the atmosphere of a slightly
deadened area where reflections would be softened.
Standard :
Very slight damping of the top end
frequencies provide the brighter character of an un-
dampened area.
Bright :
Slight damping of the low end
frequencies give this selection the bright, vibrant
character of a highly reflective area such as an
uncovered wooden floor with bare walls.
8.3 - Reverb Parameters
Reverb Decay :
Adjustable in single step
increments (00 - 99) using Data Control
❶
, the
reverb Decay parameter specifies how long the
reverb signal will sound before completely dying
out. The higher the parameter value the longer the
decay - obviously this will also be affected by which
type of reverb is selected.
Decay shaping :
A second decay option is
available which alters the slope of the decay without
affecting the overall decay time. You can select this
option using the ‘Up’ key and de-select using the
‘Down’ key.
8.4 - Creating a Reverb Program
If you scroll through to an unnamed program
(for example 53) using the ‘Up’ or ‘Down’ keys.
The Display shows:
In order to hear the effect you are about to
program you must first set the output levels for the
direct and effects signals (see Section 4.1). Having
toggled back from the output levels into the program
screen, you should then press ‘Edit’.
The Display shows:
