[PD] [PD-announce] new GUI obect: filterview, for generating and seeing biquad coefficients

Marco Donnarumma devel at thesaddj.com
Tue Apr 3 21:31:16 CEST 2012

Looks lovely!
Thanks guys,


On Tue, Apr 3, 2012 at 8:03 PM, Hans-Christoph Steiner <hans at at.or.at>wrote:

> Announcing [filterview], a new GUI object for generating and visualizing
> biquad coefficients.  It allows to you manipulate the filter band,
> frequency, and gain using your mouse.  The magnatude and phase are then
> graphed in realtime as the parameters changed, and the list of biquad
> coefficients are output. It is inspired by the [filtergraph~] object in
> Max/MSP.  Thanks to Mike Moser-Booth for doing all of the math behind the
> scenes.
> It requires Pd-extended 0.43 to run. I just got to a beta state, it works
> well for me, but it does crash Pd sometimes when you close a patch with
> [filterview] in it.  Try it out and let me know how it works for you.
> http://puredata.info/downloads/filterview
> Also, as a side note, this object is an experiment with a new way of
> writing GUI objects.  It started out as a pure Tcl program, and the GUI
> part still runs as a standalone Tcl program (try running ./filterview.tcl
> from the Terminal).  This makes development and debugging vastly easier.
>  Additionally, I tried to move more of the GUI code to the Tcl side, so
> you'll see that it uses fewer widgetbehaviors, and uses Tk's bind feature
> quite a bit.
> .hc
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Marco Donnarumma
New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
ACE, Sound Design MSc by Research (ongoing)
The University of Edinburgh, UK
Portfolio: http://marcodonnarumma.com
Research: http://res.marcodonnarumma.com | http://www.thesaddj.com |
Director: http://www.liveperformersmeeting.net
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