 "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 or some types of percussion. although it is useful to view this as a subtractive synthesis technique based on a feedback loop similar to that of a comb filter for z-transform analysis, it is better viewed as the simplest of a class of wavetable-modification algorithms now known as digital waveguide synthesis, as the delay line acts to store one period of the signal." (wikipedia) |