Novation UltraNova Benutzerhandbuch Seite 25

are likely to use values in the 40~70 range, though higher or lower values may be
appropriate for certain sound effects.
When the LFO Rate is set to zero, the LFO is "stopped", but will still apply an
offset to the parameter it is modulating of a magnitude dependent on where it
stopped in its cycle.
LFO RATE = X LFO RATE = 0
RE2: LFO 1 Rate Sync
Displayed as:
L1RSync
Initial value: Off
Range of adjustment: See table at page 40.
This control allows the frequency of the LFO to be synchronised to an internal/external
MIDI clock. When set to Off, the LFOs run at a frequency set by the Rate parameter
(RE1). At all other settings RE1 becomes inoperative, and the LFO rate is determined by
Rate Sync, which in turn is derived from the MIDI clock. When using inernal MIDI clock,
the rate can be set in the Arp Edit Menu with RE8.
RE3: LFO 1 Waveform
Displayed as:
L1Wave
Initial value: Sine
Range of adjustment: see table at page 41.
The UltraNova's LFOs are able to generate not only the familiar sine, sawtooth, triangle and
square waveforms for modulation purposes, but are also able to produce a wide range of
preset sequences of various lengths and random waveforms. A common use of an LFO is
to modulate the main oscillator(s), and with many of the sequenced waveforms, setting the
Depth parameter in the Modulation Menu to either 30 or 36 (see table) will ensure that the
resulting oscillator pitches will be musically associated in some way.
RE4: LFO 1 Phase
Displayed as:
L1Phase
Initial value: 0
Range of adjustment: 0deg to 357deg
This control is only active if L1KSync (RE6) is set On. It determines the start point of the
LFO waveform when the key is pressed. A complete waveform has 360º, and the control's
increments are in 3º steps. Thus a half-way setting (180deg) will cause the modulating
waveform to start at half-way through its cycle.
KEY "ON"
PHASE = 0 O PHASE = 90
RE5: LFO 1 Slew
Displayed as:
L1Slew
Initial value: Off
Range of adjustment: Off, 1 to 127
Slew has the effect of modifying the shape of the LFO waveform. Sharp edges become
less sharp as Slew is increased. The effect of this can be easily observed by selecting
Square as the LFO waveform and setting the rate fairly low so that the output when a key
is pressed alternates between just two tones. Increasing the value of Slew will cause the
transition between the two tones to become a "glide" rather than a sharp change. This is
caused by the vertical edges of the square LFO waveform being slewed.
Note that Slew has an effect on all LFO waveforms, including sine. The effect of
LFO Slew differs somewhat with different LFO waveforms. As Slew is increased,
the time taken to reach maximum amplitude is increased, and can ultimately result
in it never being achieved at all, though the setting at which this point is reached
will vary with waveform.
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OFFSET
KEY "ON" KEY "ON"
O PHASE = 180 O
SQUARE WAVE
NO SLEW
SMALL SLEW VALUE
LARGE SLEW VALUE
RE6: LFO 1 Key Sync On/Off
Displayed as:
L1KSync
Initial value: Off
Range of adjustment: On or Off
Each LFO is runs continuously, 'in the background'. If the Key Sync setting is Off, there
is no way of predicting where the waveform will be when a key is pressed. Consecutive
presses of a key will inevitably produce varying results. Setting Key Sync to On re-starts
the LFO at the same point on the waveform every time a key is pressed. The actual point is
set by the Phase parameter (RE3).
Key Sync OFF
NOTE 1
KEY "ON"
NOTE 2
RE7: LFO 1 Common Sync
Displayed as:
L1Comn
Initial value: Off
Range of adjustment: On or Off
Common Sync is only applicable to polyphonic voices. It ensures that the phase of the
LFO waveform is synchronised for every note being played. When to set Off, there is no
such synchronisation, and playing a second note while one is already pressed will result in
an unsynchronised sound as the modulations will be out of time.
Common Sync OFF
KEY "ON"
NOTE 1
KEY "ON"
NOTE 2
Set LFO Common Sync to On for an emulation of early analogue polyphonic
synths.
RE8: LFO 1 One-Shot
Displayed as:
L1OneSht
Initial value: Off
Range of adjustment: On or Off
As its name suggests, setting this parameter to On causes the LFO to generate just a
single cycle of its waveform. Note that a full waveform cycle is always generated regardless
of the setting of LFO Phase; if LFO Phase is set to 90 , the one-shot waveform will start at
the 90 point, execute a full cycle, and end at 90 .
Key Sync ON
NOTE 1
KEY "ON"
NOTE 2
Common Sync OFF
KEY "ON"
NOTE 1
KEY "ON"
NOTE 2