[PD] sort of off topic... how to write a filter..

[Tom Schouten]

julius smith has a nice collection of basic & advanced music dsp stuff
http://www-ccrma.stanford.edu/~jos/jospubs.html

> HI All,
> 
> I know that this is off topic in a way... but I am tinkering with writing dsp code
> (some externals for pd ..e.t.c.) and I can't really understand how to implement a filter
> (such as lowpass e.t.c.) How do you assess the frequencies of a particular signal and therefore attenuate them?
> I assume some method of holding and comparing samples in a buffer or something, but then this would delay output?
> Anyway, I am no math expert but I would appreciate any help.. I took a look at pds filter code and it seemed to be easier (in amount of code i.e. quite short) than I was thinking and I realise that i probably need to know more about filter math/operation in general..so any pointers e.t.c.
> 
> Thanks
> 
> Tom
> 
> http://www.nullpointer.co.uk
> http://www.dividebyzero.org
> ________________________________________________________
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> C:\REM [Header]
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> C:\>PATH=C:\PERL\BIN;C:\WINDOWS\COMMAND;\C:jdk1.2.2\bin
> ________________________________________________________
> 
> (all suffixes enabled)
> 
>   -----Original Message-----
>   From: evan sugerman <sugie at cats.ucsc.edu>
>   To: pdlist <pd-list at iem.kug.ac.at>
>   Date: 18 June 2001 04:29
>   Subject: [PD] (DP)
> 
> 
>   If a conversation is to continue; 2 things for actual communication:
>    
>   /Off of this list to allow for clarity.
>    
>   /Extinguish cryptic language forms.  It doesnt function to communicate an
>    idea which is based in minor reality.
>    -granted,..language is arbitrary, but I would like to read what you say
>    without translating symbols which are in essence english
>    anyway.
>    
>    soon.evan
>    
>    
>   p.s I dont hate! you
>