Waldorf Blofeld Keyboard User Manual
Page 40
Sound Parameter
Blofeld User´s Manual
40
like the modulation wheel or aftertouch can create nice
effects as well.
✻
To create a thick oscillator sound, use a triangular
LFO as PWM Source with full PWM 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
PWM Source
with negative PWM 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 PWM Source to sweep
through the whole wavetable.
PWM Amount
-64...+63
PWM stands for pulsewidth modulation. This parameter
determines the amount of modulation that is applied to
the pulsewidth of the oscillator’s square wave. If a
wavetable is selected, PWM 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.
Limit WT
on, off
Determines, if the classic wavetables (from Resonant) are
played with or without the additional analog waveforms.
The analog waveforms are a relict from the former PPG
Wave and Microwave synthesizers. If you don´t want to
use these waveforms, use Limit WT to mask it.
•
on masks the analog waveforms of a wavetable.
•
off plays the analog waveforms of a wavetable.