[PD] nonlinear interpolation external?

Thomas Grill t.grill at gmx.net
Thu Oct 23 11:22:43 CEST 2003


Hi Ben,
here's a small illustration how i'd employ low-pass filtering for smoothing
of control messages.... this one uses the dsp, but if one has a message
stream at constant intervals purely message-based filtering would be equally
possible.

best greetings,
Thomas

----- Original Message ----- 
From: "B. Bogart" <ben at ekran.org>
To: "Thomas Grill" <t.grill at gmx.net>; <pd-list at iem.at>
Sent: Thursday, October 23, 2003 5:31 AM
Subject: Re: [PD] nonlinear interpolation external?


> Hmmm,
>
> I'm really not that familar with filtering algos, how can I use a signal
as
> a pd control? (descrete messages).  Anyone have an example?
>
> fade~ sounds nice, same signal->control issue...
>
> Thanks
> Ben
>
>
> ----- Original Message -----
> From: "Thomas Grill" <t.grill at gmx.net>
> To: "B. Bogart" <ben at ekran.org>; <pd-list at iem.at>
> Sent: Wednesday, October 22, 2003 4:18 PM
> Subject: Re: [PD] nonlinear interpolation external?
>
>
> > Hi Ben,
> > how about low-pass filtering?
> >
> > good gain,
> > Thomas
> >
> > ----- Original Message -----
> > From: "B. Bogart" <ben at ekran.org>
> > To: <pd-list at iem.at>
> > Sent: Wednesday, October 22, 2003 9:43 PM
> > Subject: [PD] nonlinear interpolation external?
> >
> >
> > > Hey all,
> > >
> > > Does anyone have a non linear interpolation object that works
something
> > like
> > > "line" but does a nice ease-in ease-out acceleration curve? I'm
finding
> > line
> > > a little ugly for my Gem interpolation needs...
> > >
> > > If one does not exist I'd appreciate any suggestions on how to
approach
> > > this, I started messing with a sigmoid function but having trouble
> > figuring
> > > out how to change the variables to have precise control of the in and
> out
> > > points... I'm finding a lot of references to the problem on google,
but
> > few
> > > (code) examples.
> > >
> > > Thanks!
> > > Ben
> > >
> > >
> > > _______________________________________________
> > > PD-list mailing list
> > > PD-list at iem.at
> > > http://iem.at/cgi-bin/mailman/listinfo/pd-list
> > >
> > >
> >
> >
> > _______________________________________________
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>
>
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