Wavetable synthesis in the ppg wave 3.v – Waldorf Wave 3.v User Manual

Page 63

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Appendix

63

PPG Wave 3.V User´s Manual

Wavetable Synthesis in the PPG Wave 3.V

The sound generation of the wavetables in the PPG Wave
3.V is based on wavetable synthesis. Although wavetable
synthesis is not a form of “sample playback”, you should
avoid this term because functionality, operation and
results are totally different.

Each of the wavetables contain

64 single waves.

m

Please keep the terms “wavetable” and “wave” in
mind. Don´t mix up!

The following overview explains how the Wavetable
Synthesis works: A wavetable in the PPG Wave 3.V is a
table consisting of 64 waveforms. Each waveform is
classified by its own special sound character. The main
difference of wavetable synthesis in comparison with
other sound generation principles is the facility not only to
play one waveform per oscillator, but also to walk
through the wavetable via different modulations.
Therefore you can create wavetable sweeps. The results
can be dramatic - much more so than those any sample
playback based system could ever produce. This is a
unique feature of wavetable synthesis.

This principle offers powerful capabilities. To give some
examples:

• Each note on a keyboard can access a different wave

of a wavetable.

• Different waves can be played depending on key

velocity.

• A LFO can modulate the position within the wave-

table. You can create subtle to drastic sound changes.

• User-selected controllers e.g. the mod wheel, can

change the position within the wavetable. When you
turn the wheel while playing a chord, each note´s
wave will be modified intantly.

You should keep the following sentence in mind:

w

A wavetable is a list with 64 waves, among which
you can move at will.

Modulating Waves over time

The graphic below shows a wavetable and some of its
contained waves from position 0 to 59 on the vertical
axis. The positions 60 to 63 are excluded since they
usually contain the four analog waveforms.

When you set WAVES OSC to 0, ENV 1 -> WAVES to 59
and ENV 1 ATTACK to some medium value, the
horizontal axis represents the audio signal that is

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