Ananalog modeling synthesizer is asynthesizer that generates the sounds of traditionalanalog synthesizers usingdigital signal processing components and softwarealgorithms. Analog modeling synthesizers simulate the behavior of the original electronic circuitry in order to digitally replicate their tone.
This method of synthesis is also referred to asvirtual analog orVA. Analog modeling synthesizers can be more reliable than their true analog counterparts since the oscillator pitch is ultimately maintained by a digital clock, and the digital hardware is typically less susceptible to temperature changes.
While analog synthesizers need an oscillator circuit for each voice ofpolyphony, analog modeling synthesizers do not face this problem. This means that many of them, especially the more modern models, can produce as many polyphonic voices as the CPU on which they run can handle.
Modeling synths also provide patch storage capabilities andMIDI support not found on most true analog instruments. Analog modeling synthesizers that run entirely within a host computer operating system are typically referred to asanalog software synthesizers.[citation needed]
While theRoland D-50 from 1987 is probably the first affordable virtual analog synthesizer,[1] the term was not used until the 1990s when theNord Lead came out.[2]
Examples of VA synthesizers include:
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