Re: [PD] allpass filters? - Pd-list

9 Mar 2005 · *~ $2; #X obj 403 94 loadbang; #X obj 403 141 t f f; #X obj 403 165 *


      David--
Below is an abstraction I made for an allpass filter that is taken from the Roads Computer Music Tutorial... if you use it as an abstraction just name it something like allpass~.pd and use the following syntax:
[allpass~ delay_length feedback_gain post_gain],
Hope that helps!
-Julian
#N canvas 81 97 538 447 10;
#X obj 112 48 inlet~;
#X obj 112 261 +~;
#X obj 112 292 delwrite~ $0-allpass $1;
#X obj 218 95 delread~ $0-allpass $1;
#X obj 218 123 *~ $2;
#X obj 403 94 loadbang;
#X obj 403 141 t f f;
#X obj 403 165 *;
#X obj 403 189 expr 1-$f1;
#X obj 218 225 *~;
#X obj 218 255 +~;
#X obj 440 117 f $2;
#X obj 444 141 * -1;
#X obj 144 128 *~;
#X obj 218 401 outlet~;
#X obj 218 353 *~ $3;
#X text 31 17 [allpass~.pd delay(ms) feedback(mult) postgain];
#X obj 403 117 f $2;
#X connect 0 0 1 0;
#X connect 0 0 13 0;
#X connect 1 0 2 0;
#X connect 3 0 4 0;
#X connect 4 0 1 1;
#X connect 4 0 9 0;
#X connect 5 0 11 0;
#X connect 5 0 17 0;
#X connect 6 0 7 0;
#X connect 6 1 7 1;
#X connect 7 0 8 0;
#X connect 8 0 9 1;
#X connect 9 0 10 1;
#X connect 10 0 15 0;
#X connect 11 0 12 0;
#X connect 12 0 13 1;
#X connect 13 0 10 0;
#X connect 15 0 14 0;
#X connect 17 0 6 0;
Message: 8 
From: "david golightly" davigoli@hotmail.com 
To: pd-list@iem.at 
Subject: [PD] allpass filters? 
Date: Tue, 08 Mar 2005 21:00:09 -0500
Hello again List,
I'm stumped here - does PD have any built-in allpass filter?  If not, is 
there an external out there that I should know about?  Thanks!
David