Analog audio circuits

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This is a companion page for the article Passive guaranteed simulation of analog audio circuits: A port-Hamiltonian approach submitted in may 2016 to the special issue Audio Signal Processing of journal Applied Science.

Comparison of numerical methods

A detailed comparison with simulation code are available here.

Diode clipper


BJT audio amplifer


CryBaby wah pedal


Short guitar sample

CryBaby output

The wah parameter (potentiometer coefficient) is continuously varying according to a sinusoid signal with DC offset 0.5, amplitude 1 and frequency 1Hz.