Waldorf Largo - Manual (Page 27)

Sound Parameter
27 Largo User´s Manual
[ A pulse width of around 30% can be used for e-
piano or fat bass sounds.
[ A pulse width of around 10% is interesting for
Clavinet sounds.
[ Experiment with different start points for the
Wavetable waveforms to get an overview of the
array of available Waveforms for both wavetables.
Wave Source see table „Modulation Sources“
Selects the source of the pulsewidth modulation or the
wavetable modulation. Common sources for pulsewidth
modulation are envelopes and LFOs, but other sources
like the modulation wheel or aftertouch can create nice
effects as well.
[ To create a thick oscillator sound, use a triangular
LFO as Wave Source with full Wave Amount and
a Pulsewidth of around 80. This basic setting is
useful for very big string and lead sounds. When you
play different notes on the keyboard, you might
notice that bass notes sound more detuned than
higher notes. To avoid this behaviour, set Keytrack
of the used LFO to a positive setting between 50%
and 100%.
[ To create a Bass sound, use a decaying Envelope as
Wave Source
with negative Wave Amount and a
Pulsewidth of around 80…127. This results in a fat
attack phase, especially when only one oscillator is
used for the Bass.
[ When you want to create a sound with a wave
sweep, you should set the startpoint roughly
(Pulsewidth) at the desired wave, before you apply
any modulation. This will help you to find the basic
waveform, before the effect of modulations. Note
that you can apply unipolar and bipolar modulation
sources. For example, set Pulsewidth to 64, which
is almost the middle of the wavetable and apply a
slow running LFO to Wave Source to sweep
through the whole wavetable.
Wave Amount -64...+63
This parameter determines the amount of modulation that
is applied to the pulsewidth of the oscillator’s square
wave. If a wavetable is selected, Wave Amount
determines the amount of the wavetable modulation. If
you select any waveform other than Pulse or the
wavetables, this parameter does not have any effect. The
modulation source that affects the pulsewidth is selected
by the source parameter described above.