#N canvas 360 15 553 524 12; #X floatatom 44 146 5 0 150 0 - #0-pitch -; #X text 126 9 SWEEPING FILTERS; #X obj 44 193 phasor~; #X obj 59 351 +~; #X floatatom 81 326 5 0 100 0 - #0-offset -; #X floatatom 60 222 5 0 0 0 - #0-speed -; #X floatatom 82 273 5 0 100 0 - #0-depth -; #X floatatom 75 404 5 0 1000 0 - #0-q -; #X obj 44 426 vcf~; #X obj 59 375 tabread4~ mtof; #X text 127 403 <-- Q (selectivity); #X text 115 182 sawtooth; #X text 116 198 oscillator; #X text 112 221 <-- sweep speed; #X text 137 245 LFO for sweep; #X text 134 274 <-- sweep depth; #X text 131 326 <-- base center frequency; #X text 103 350 add base to sweep; #X text 192 375 convert to Hz.; #X text 97 144 <-- pitch; #X obj 43 457 output~; #X obj 44 169 mtof; #X obj 60 244 phasor~; #X obj 60 298 *~; #X text 294 496 updated for Pd version 0.39; #N canvas 706 247 450 300 startup 0; #X obj 85 16 loadbang; #X obj 85 40 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1 -1; #X obj 85 59 f \$0; #X text 9 257 boxes.; #X text 18 209 This subpatch loads initial values in number; #X msg 85 83 \; \$1-pitch 48 \; \$1-speed -2 \; \$1-depth 27 \; \$1-offset 56 \; \$1-q 2; #X connect 0 0 1 0; #X connect 1 0 2 0; #X connect 2 0 5 0; #X restore 168 491 pd startup; #X text 14 109 Note the different effects of negative and positive sweep speeds.; #X text 13 32 If you want actively changing center frequencies \, use "vcf~" instead of "bp~". The vcf~ module takes an audio signal to set center frequency. (Q is still set by messages though.) Vcf is computationally somewhat more expensive than bp~.; #X connect 0 0 21 0; #X connect 2 0 8 0; #X connect 3 0 9 0; #X connect 4 0 3 1; #X connect 5 0 22 0; #X connect 6 0 23 1; #X connect 7 0 8 2; #X connect 8 0 20 0; #X connect 8 0 20 1; #X connect 9 0 8 1; #X connect 21 0 2 0; #X connect 22 0 23 0; #X connect 23 0 3 0;