Editing Karplus–Strong string synthesis (section)

{{Short description|Method of physical modelling synthesis}}
{{more footnotes|date=December 2013}}
'''Karplus–Strong string synthesis''' is a method of [[physical modelling synthesis]] that loops a short waveform through a filtered delay line to simulate the sound of a hammered or plucked [[string instrument|string]] or some types of [[Percussion instrument|percussion]]. 

At first glance, this technique can be viewed as [[subtractive synthesis]] based on a [[feedback loop]] similar to that of a [[comb filter]] for [[z-transform]] analysis. However, it can also be viewed as the simplest class of [[Table-lookup synthesis|wavetable]]-modification algorithms now known as [[digital waveguide synthesis]], because the delay line acts to store one period of the signal.

[[Alexander Strong]] invented the algorithm, and [[Kevin Karplus]] did the first analysis of how it worked.  Together they developed software and hardware implementations of the algorithm, including a custom [[VLSI]] chip. They named the algorithm "Digitar" synthesis, as a [[portmanteau]] for "digital guitar".