Physical Modeling

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PM Clarinet

Physical Modeling Synthesis

Here is a photo of my experimental electronic implementation of a "physical modeling" clarinet. The circuitry produces clarinet-like oscillations in response to a control voltage that is analogous to blowing pressure. It also can be configured to demonstrate the "period-doubling route to chaos", a characteristic of a large class of nonlinear mechanical systems.

Physical Modeling of Clarinet:

Overview:

Overview and theory of model.

Circuit Schematics:

Reed Circuit:

The circuit that generates the reed transmission function T.

Algorithm Circuit:

A schematic showing how the flow-continuity equation can be solved.

Sample/Delay/Convolve:

The circuitry for simulating the linear response of the instrument bore.

Low-pass Filter:

A double cascaded 2-pole Butterworth filter with 1oct/V frequency control.

NOTICE: The circuit diagrams presented on this site are strictly for explanatory, instructional and experimental use. Actual construction of the circuits requires a significant knowledge of electronic circuit design and construction beyond what is presented here. The author, Ian Fritz, does not warrant operability, reliability, suitability or safety of any of the circuits. Anyone who constructs and/or uses these circuits accepts all responsibility for their operation and safety. All diagrams and photographs on this site are copyrighted, 1998-2011, by Ian Fritz, and may not be reproduced without written permission, with the exception that hard-copy printouts may be made for personal use.