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RE1:

Not used.

RE2:

Compression Ratio

Displayed as:

C1Ratio

Initial value:

1.0

Range of adjustment:

1.0 to 13.7

With the minimum value of

1.0

set, the compressor has no effect as

1.0

means that every

change in input level results in an equal change in output level. The parameter sets the
degree to which sounds which are louder than the

Threshold level

(set by

RE3

) get

reduced in volume. If the

Ratio

is set to

2.0

, a change in input level results in a change

in output level of only half the magnitude, thus the overall dynamic range of the signal is
reduced. The higher the setting of

Ratio

, the more compression is applied to those parts

of the sound which are above the

Threshold level

RE3: Threshold Level

Displayed as:

C1Thrsh

Initial value:

-20

Range of adjustment:

-60 to 0

Threshold

deines the signal level at which compressor action starts. Signals below the

threshold (i.e. the quieter parts of the sound) are unaltered, but signals exceeding the
threshold (the louder sections) are reduced in level - in the ratio set with

RE2

- resulting in

an overall reduction of the dynamic range of the sound.

Note that any alteration in volume resulting from compressor action has nothing
to do with how the output level of the synth is set. Whether you are using the
Ultranova’s

MASTER VOLUME

control or an Expression pedal to control your

overall volume, any compression in the FX section is applied ‘before’ these volume control
methods, and thus will remain constant.

RE4: Attack Time

Displayed as:

C1Attack

Initial value:

Range of adjustment:

0 to 127

The

Attack Time

parameter determines how fast the compressor applies gain reduc-

tion to a signal exceeding the threshold. With percussive sounds - such as struck drums
or plucked bass - it may be desirable to compress the main envelope of the sound while
retaining the distinctive front edge or “attack phase” of the sound. A low value gives a fast
attack time, and compression will be applied to the front edge of the signal. High values
give slow response times, and percussive leading edges will not be compressed, to give a
“punchier” sound. The range of attack times available is from 0.1 ms to 100 ms.

RE5: Release Time

Displayed as:

C1Rel

Initial value:

Range of adjustment:

0 to 127

This parameter should be adjusted in conjunction with the

Hold Time

parameter (see

RE6

below).

Release Time

determines the time period over which the gain reduction is

removed (resulting in no compression) after the completion of the

Hold Time

. Low values

give a short

Release Time

, high values a long one. The range of release times available is

from 25 ms to 1 second.

RE6: Hold Time

Displayed as:

C1Hold

Initial value:

Range of adjustment:

0 to 127

Hold Time

determines for how long any gain reduction applied to a signal exceeding the

Threshold

remains applied after the signal level drops below the

Threshold

. At the end of

the

Hold Time

, the amount of gain reduction is reduced over the

Release Time

, set with

RE5

. Low values give a short

Hold Time

, high values a long one. The range of hold times

available is from 0.5 ms to 500 ms.

Compressor times are of particular importance with repetitive, rhythmic sounds.
For example, setting too short a

Hold Time

may result in audible “pumping” of

background noise between notes, which can be quite unpleasant.

Hold

Release

and

Attack Times

are usually best adjusted in conjunction with one

another, by ear, to obtain an optimum effect with the particular sound you are using.

RE7: Auto Gain

Displayed as:

C1Gain

Initial value:

127

Range of adjustment:

0 to 127

A consequence of compression is that the overall volume of the sound may be reduced.
The UltraNova’s compressors automatically “make up” for this loss of level, and ensure that
the level of the compressed signal remains as near as possible to that of the input.

Auto

Gain

provides additional gain, which may be useful in situations where heavy compression

is used.

RE8:

Not used.

Distortion Menu

Distortion is usually regarded as something undesirable, and although we all take great
pains most of the time to avoid it, there are circumstances when adding some carefully-
controlled distortion gives you exactly the sound you’re after.

Distortion arises when a signal is passed through a non-linear channel of some kind, the
non-linearity producing alterations to the waveform which we hear as distortion. The nature
of the circuitry exhibiting the non-linearity dictates the precise nature of the distortion. The
UltraNova’s distortion algorithms are able to simulate various types of non-linear circuitry,
with results ranging from a slight thickening of the sound to something really quite nasty.

Care should be taken when selecting different

Distortion Types

, as the same

setting of the

FXAmnt

control will produce very different volumes depending on

the

Distortion Type

in use.

The UltraNova has two distortion effect devices. These may be loaded into any two FX
slots. Their facilities are identical; the example below illustrates Distortion 1.

RE1:

Not used.

RE2: Distortion 1 Type

Displayed as:

Dst1Type

Initial value:

Diode

Range of adjustment:

see below

Diode -

Simulation of analogue circuitry producing distortion where the waveform is

progressively “squared-off” as the amount of distortion is increased.

Valve -

Simulation of analogue circuitry producing distortion similar to

Diode

, but at

extreme settings alternate half-cycles of the waveform are inverted.

Clipper -

Simulation of a digital overload.

XOver -

Simulation of the crossover distortion generated by bi-polar analogue circuitry,

e.g., ampliier output stages.

Rectify -

All negative-going half-cycles are inverted, simulating the effect of rectiication.

BitsDown -

Reproduces the “grainy” quality associated with lower bit rates, as found in

older digital devices.

RateDown -

Gives the effect of reduced deinition and HF loss, similar to the use of a low

sample rate.

RE3: Distortion 1 Compensation

Displayed as:

Dst1Comp

Initial value:

100

Range of adjustment:

0 to 127

Distortion Compensation

only has an effect on

Diode

and

Valve

distortion types.

Increasing compensation reduces the harshness of the distortion effect.

RE4 to RE8:

Not used.

Delay Menu

The Delay FX processor produces one or more repetitions of the note played. Although the
two are intimately related in an acoustic sense, delay should not be confused with reverb in
terms of an effect. Think of delay simply as “Echo”.

The UltraNova has two delay lines. These can be loaded into any two FX slots. Their facili-
ties are identical; the example below illustrates Delay 1.

DISTORT1

Dst1Type

Dst1Comp

Diode

100

FX - EQ

EQBasLvl

EQMidLvl

EQTrbLvl

EQBasFrq

EQMidFrq

EQTrbFrq