[PD] Re: [PD-dev] i need some help with this

[marius schebella]

hi scott.
i made an example of what i think you want to do. please tell me, if i'm
wrong. you can draw a filterkernel of 128 samples (time-domain!) and
convolute it with any sound you like, ... you can adapt this to your own
needs.
see attached patch.
marius.


----- Original Message -----
From: "J. Scott Hildebrand" <jshildebrand at ucdavis.edu>
To: <zmoelnig at iem.at>
Cc: "J. Scott Hildebrand" <jshildebrand at ucdavis.edu>; <pd-dev at iem.kug.ac.at>
Sent: Tuesday, September 03, 2002 9:08 PM
Subject: Re: [PD-dev] i need some help with this


>
>        i wouldn't mind at all to do the convolution with the built-in fft
> stuff. the only problem is that i don't quite understand how it works.
> what i need is to input x amount of samples, and get out y amount of
> output, which should be at least 1.5 times the original amount + padded
> zeros to equal 2 times the original amount. only then can i write an
> overlap and add method.
>
>                      scott
>
> On Sat, 31 Aug 2002 zmoelnig at iem.at wrote:
>
> > hi scott !
> >
> > i really recommend that you read the mail i send you when qou first
posted your
> > piece of code.
> > i really tried to point out all the faulty pieces of code (especially
the
> > neveroccuring reset of apple)
> > and i again give you one advice: add debugging code like "post()" to
show you
> > where the error occurs !
> >
> > i am not going to do the programming for you (and i hope no one else
will do)
> > - just read the mails. (it's all in there)
> >
> > and again:
> > is there any major reason not to do the convolution as an abstraction ?
> > to not use pd's built in fft-routines ?
> >
> >
> > mfg.cd.sar
> > IOhannes
> >
>
>
>
>
> --------------------------------------------------------------------
>
> "640K ought to be enough for anybody." -- Bill Gates, 1981
>
> --------------------------------------------------------------------
>
>
> _______________________________________________
> PD-dev mailing list
> PD-dev at iem.kug.ac.at
> http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-dev
-------------- next part --------------
A non-text attachment was scrubbed...
Name: overlapnadd.pd
Type: application/octet-stream
Size: 4057 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20020904/8751c738/attachment.obj>