Waldorf MicroWave II User Manual
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Contents
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About Wavetable SynthesisBasicsThe sound generation of the MicroWave II/XT/XTk is based on wavetable synthesis. Thistype of synthesis combines analog access and digital flexibility in a simple way. Althoughwavetable synthesis is a form of "sample playback" in principle, you should avoid this termbecause functionality, operation and results are totally different.The ROM area of the MicroWave II/XT/XTk currently consists of 65 wavetables, 31locations are reserved for future ROM wavetables. The RAM area contains 32 userwavetables, which can be manipulated over MIDI via appropriate computer software.A wavetable is a list made up of 64 entries. Each entry represents one wave, that can beeither located in the ROM or RAM area of the MicroWave II/XT/XTk or calculated by analgorithm after selecting the wavetable. For the purpose of using a wavetable inside a soundprogram, it doesn’t matter what source the wavetable comes from.A wavetable itself contains no wave data, but is in fact a collection of up to 64 entriesreferencing up to 64 waves. Not all entries of the wavetable have to contain entries. Whenone or several sequential entries contain no reference, the MicroWave II/XT/XTk calculatesthe waves for these locations automatically. The algorithm producing these "imaginary"waves uses an interpolation scheme that crossfades the "real" ones. E.g. when a wavetablecointains entries in entry 1 and 5, the positions 2 to 4 are generated based on interpolationbetween the existing waves in entry 1 and 5.m Please keep the terms "wavetable" and "wave" in mind. Don’t bring them intoconfusion.IntroductionWavetable synthesis gives the MicroWave II/XT/XTk the unique sound character whichmakes it different from all other synthesizers and samplers. The principle of wavetablesynthesis is not new, the PPG synthesizer "Wavecomputer 360", "Wave 2", "Wave 2.2" and"Wave 2.3" and also the Waldorf MicroWave (the first one) and Waldorf Wave use thisconcept. The MicroWave II/XT/XTk contains some enhancements to wavetable synthesiswhich improve the sonic quality in a remarkable way.An introduction to wavetable synthesis needs some attention because its operationprinciple is different to other sound generating systems. Nevertheless you should spend alittle time in understanding the basics. You will gain more than the effort it takes.m Please note that you cannot create your own wavetables or waves with theMicroWave II/XT/XTk itself. To do so, you need a wavetable editor, a specialcomputer program, that allows you to create and edit wavetables and waves. Pleaseask your local dealer for such an editor software.User’s Manual MicroWave II • MicroWave XT • XTk 33 |
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