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Wavetable synthesis: Difference between revisions
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<!-- this article needs fixing -->'''Wavetable synthesis''' was first developed by [[Wolfgang Palm]] of [[Palm Products GmbH|PPG]] in the late 1970s<ref>[http://seib.synth.net/documents/w22omeng.pdf PPG Wave 2.2 owners manual]</ref><ref>[https://web.archive.org/web/20131118191907/http://wolfgangpalm.com/ppg_blogs/c4/ Part 4 "Digital Age"] on Wolfgang Palm's blog</ref> and published in 1979.<ref name="Andresen">''A New Way in Sound Synthesis'' by Uwe Andresen, Audio Engineering Society (AES), 62nd AES Convention (Brussels, Belgium), 1979</ref>▼
''Wavetable synthesis''' is a technique used to create [https://en.wikipedia.org/wiki/Periodic_function periodic waveforms].
== Development ==
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== Wavetable synths ==
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During playback, the sound produced can be harmonically changed by moving to another point in the wavetable, usually under the control of an [[envelope generator]] or [[low frequency oscillator]] but frequently by any number of modulators (matrix modulation). Doing this modifies the harmonic content of the output wave in real time, producing sounds that can imitate acoustic instruments or be totally abstract, which is where this method of sound creation excels. The technique is especially useful for evolving [[synth pad]]s, where the sound changes slowly over time.
It is often necessary to 'audition' each position in a wavetable and to scan through it, forwards and backwards, in order to make good use of it, though selecting random wavetables, start positions, end positions and directions of scan can also produce satisfyingly musical results. Most wavetable synthesizers also employ other synthesis methods to further shape the output waveform, such as [[Voltage controlled filter|
== DIY wavetable synths ==
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