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RE2: Amplitude Decay Time

Displayed as:

AmpDec

Initial value:

Range of adjustment:

0 to 127

This parameter sets the notes’ decay time. Decay time only has meaning if the Sustain
parameter value is set to less than 127, as the Decay phase will be inaudible if the sustain
level is the same as the level reached during the attack phase. At the mid-setting (64), the
time is approx. 150 ms (provided

Amplitude Decay Slope

(Page 2,

RE2

) has a value of

127).

RE3: Amplitude Sustain Level

Displayed as:

AmpSus

Initial value:

127

Range of adjustment:

0 to 127

The value of the Sustain parameter sets the volume of the note after the completion of the
decay phase. Setting a low value will obviously have the effect of emphasising the start of
the note; setting it to zero will render the note silent after the decay phase has elapsed.

RE4: Amplitude Release Time

Displayed as:

AmpRel

Initial value:

Range of adjustment:

0 to 127

Many sounds acquire some of their character from the notes remaining audible after the key
is released; this “hanging” or “fade-out” effect, with the note gently dying away naturally (as
with many real instruments) can be very effective. A setting of 64 gives a Release Time of
approx. 300 ms. The UltraNova has a maximum release time of approx. 30 seconds (with

Release

set to 127), but shorter times will probably be more useful! The relationship

between the parameter value and the Release Time is not linear – see the graph below.

Note that when playing polyphonically with sounds having long release times, it is
possible for ‘Voice Stealing’ to occur. This means that some notes still sounding
(in their Release phase) might suddenly cut off when other notes are played. This
is more likely to happen when multiple Voices are in use. See page 18 for more
information on this topic.

RE5: Amplitude Velocity

Displayed as:

AmpVeloc

Initial value:

Range of adjustment:

-64 to +63

Amplitude Velocity

does not modify the shape of the ADSR amplitude envelope in any

way, but adds touch sensitivity to overall volume, so that with positive parameter values,
the harder you play the keys, the louder will be the sound. With

Amplitude Velocity

set

to zero, the volume is the same regardless of how the keys are played. The relationship
between the velocity at which a note is played and volume is determined by the value. Note
that negative values have the inverse effect.

For the most “natural” playing style, try setting Amplitude Velocity to about +40.

RE6: Amplitude Envelope Repeat

Displayed as:

AmpRept

Initial value:

Range of adjustment:

0 to 126, KeyOff

By using

Amplitude Repeat

, it is possible to repeat the Attack and Decay phases of the

envelope before the Sustain phase is initiated. This can produce an interesting “stuttering”
effect at the start of the note if the Attack and Decay times are set appropriately. The value
of the Repeat parameter (from 0 to 126) is the actual number of repeats, so that if you set it
to, e.g. 3, you will hear a total of four attack/decay phases of the envelope – the initial one,
plus three repeats. The maximum setting of KeyOff generates an ininite number of repeats.

RE7: Amplitude Touch Trigger

Displayed as:

AmpTTrig

Initial value:

Off

Range of adjustment:

Off, T1ReTrig to T8ReTrig

You will have noticed that the UltraNova’s rotary encoders are touch-sensitive – the associ-
ated LED illuminates as soon as the knob is touched. This touch sensitivity can be utilised
in real time to provide creative control over the sound, which is especially useful when
playing live.

Amplitude Touch Trigger

assigns any one of the encoder knobs to act as a re-trigger but-

ton – as soon as the knob is touched, the amplitude envelope is re-triggered. After making
the assignment, in order to use the feature it is necessary to open the Animate Touch mode
by pressing the

TOUCH

button [22] (select Page 1 if it is not already visible); you will see

that an

‘R’

appears under

RE1

, below the selected encoder to conirm the assignment of

Envelope1 to that encoder. The touch-sensitive knob is now active.

RE8: Amplitude Multi-trigger

Displayed as:

AmpMTrig

Initial value:

Re-Trig

Range of adjustment:

Legato or Re-Trig

When this parameter is set to Re-Trig, each note played will trigger its full ADSR amplitude
envelope, even if other keys are held down. In Legato mode, only the irst key to be pressed
will produce a note with the full envelope, all subsequent notes will omit the attack and
decay phases, and sound only from the start of the Sustain phase. “Legato” literally means
“smoothly”, and this mode aids this style of playing.

It is important to appreciate that for the Legato mode to be operative, mono voicing must
be selected – it will not work with polyphonic voicing. See page 19

What is Legato?
As stated above, the musical term Legato means “smoothly”. A Legato keyboard
style is one where at least two notes overlap. This means that as you play the
melody, you keep the previous (or an earlier) note sounding as you play another

note. Once that note is sounding, you then release the earlier note.

Legato style playing is relevant to some of the UltraNova’s sonic possibilities. In the case
of Amplitude Multi-Trigger, for example, it is important to appreciate that the envelope will
re-trigger if any ‘gap’ is left between notes.

Envelope 1 (Amplitude) parameters (Page 2)

RE1: Amplitude Attack Slope

Displayed as:

AmpAtSlp

Initial value:

Range of adjustment:

0 to 127

This parameter controls the “shape” of the attack characteristic. With a value of 0, the
volume increases linearly during the attack phase – that is to say, increases by equal
amounts in equal time intervals. A non-linear attack characteristic may be selected as an
alternative, where the volume increases more rapidly at irst. The diagram below illustrates this:

RE2: Amplitude Decay Slope

Displayed as:

AmpDcSlp

Initial value:

127

Range of adjustment:

0 to 127

This parameter applies the same function as

Amplitude Attack Slope

to the Decay phase

of the envelope. With a value of 0, the volume drops linearly from the maximum value to that
deined by the Sustain parameter, but setting Decay Slope to a higher value will cause the
volume to reduce more rapidly initially. The diagram below illustrates this:

RE3: Amplitude Attack Track

Displayed as:

AmpAttTk

Initial value:

Range of adjustment:

-64 to +63

This parameter relates a note’s attack time to its position on the keyboard. When

Amplitude Attack Track

has a positive value, the attack time of a note decreases the

higher up the keyboard it is played. Conversely, lower notes have a longer attack time. This
aids in simulating the effect of a real stringed instrument (such as a grand piano), where
the mass of the strings on the lower notes have a slower response time when struck. When
a negative value is applied, the relationships are reversed.

FX - EQ

EQBasLvl

EQMidLvl

EQTrbLvl

EQBasFrq

EQMidFrq

EQTrbFrq

FX - DELAY 1/2 DELAY1

Dly1Time

Dly1Sync

Dly1Fbck

Dly1L/R