Interpretations of the Karplus-Strong Algorithm

The Karplus-Strong structure can be interpreted as a

• pitch prediction filter from the Codebook-Excited Linear Prediction (CELP) standard (periodic LPC synthesis)

• feedback comb filter with lowpassed feedback
  used earlier by James A. Moorer for recursively modeling wall-to-wall echoes (``About This Reverberation Business'')
• simplified digital waveguide model