[PD] [PD-announce] new GUI obect: filterview, for generating and seeing biquad coefficients
APO33
info at apo33.org
Thu Apr 5 08:47:36 CEST 2012
Hey Hans
thanks for this one! I was using it in max ten years ago, I am happy
to be able to use it again in PD, nice shot!
I am testing it now, I tell you if I see something wrong, so far, it's
all good.
cheers
Julien
>
> 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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