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

[batinste]

I built it for pd-ext 64bits on ubuntu current, it works well (some 
crashes at exit, as you said) !
Is there an easy way to make the magnitude response polygon less 
"polygoney" ? If you move a strong notch filter along the spectrum, you 
can actually see the line acting like a bike chain, thus changing the 
visually perceived response of the filter.

On 03/04/2012 21:31, Marco Donnarumma wrote:
> Looks lovely!
> Thanks guys,
>
> M
>
> On Tue, Apr 3, 2012 at 8:03 PM, Hans-Christoph Steiner <hans at at.or.at 
> <mailto: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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>                                kill your television
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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
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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