[PD] trumpet waveguide - scatter junctions

Aaron Thompson aaron.thompson at live.co.uk
Mon Sep 24 21:21:40 CEST 2012

Forgot to mention, you have to bang the tube length message in each waveguide delay line to get the FIR's functioning, haven't sorting this issue yet either.
From: aaron.thompson at live.co.uk
To: pd-list at iem.at
Date: Mon, 24 Sep 2012 16:52:31 +0000
Subject: [PD] trumpet waveguide - scatter junctions

Hello community,
Having troubles getting my waveguide to function properly and I think the issue lies within the scatter junctions. Anyone up for taking a look?
The waveguide is based on maarten van walstijn's piecewise design if you're familiar.
Cut a long story short, pulse-chebyshev creates the nonlinear pressure fluctuations, the mouthpiece is modelled as band pass resonator, the resultant sections waveguide delays, FIR fractional delay and lop loss filters. The bell reflection is at the moment generalised as a lop and hip filter as I am experimenting with the [partconv~] object. Conical waveguides such as the back bore and mouthpipe are modelled as  tubes of average radius with amplitude and frequency losses lumped at the ends.
Anyway, the files attached in the email. See what you can make of it.


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