[sdiy] Using analog for physical modeling

Scott Gravenhorst music.maker at gte.net
Sun Sep 18 21:40:34 CEST 2011


A friend (Les Hall aka Inventor) on the electro-music.com forum came up with
something I thought was interesting.  He re-modeled a Karplus-Strong string model
using analog components (assuming you consider a BBD an analog device).  

His loop was constructed with a BBD (length, I don't know), a linear attenuator
(pot) and a tunable single pole lowpass filter (one LM13700).  He drove the BBD
clock with a VCO to allow tuning the delay line.  I wish I could find the post on
e-m, but my fu isn't so fu.

-- ScottG
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-- Scott Gravenhorst
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