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Diffstat (limited to 'pd/doc/3.audio.examples/C08.analog.sequencer.pd')
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diff --git a/pd/doc/3.audio.examples/C08.analog.sequencer.pd b/pd/doc/3.audio.examples/C08.analog.sequencer.pd new file mode 100644 index 00000000..9ee9e6de --- /dev/null +++ b/pd/doc/3.audio.examples/C08.analog.sequencer.pd @@ -0,0 +1,156 @@ +#N canvas 46 22 825 554 12; +#N canvas 0 0 450 300 graph1 0; +#X array 29-sequence 9 float 1; +#A 0 55 550 385 495 165 385 495 275 615; +#X coords 0 500 8 0 200 100 1; +#X restore 621 42 graph; +#X obj 27 426 *~; +#X obj 27 454 hip~ 5; +#N canvas 0 0 450 300 graph1 0; +#X array 29-envelope 103 float 1; +#A 0 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 1.01111 1 0.988889 0.977778 +0.966667 0.955556 0.944444 0.933333 0.922222 0.911111 0.9 0.888889 +0.797778 0.737777 0.677777 0.647777 0.617777 0.557777 0.487777 0.467777 +0.447776 0.417776 0.397776 0.387776 0.377776 0.367776 0.347776 0.327776 +0.317776 0.297776 0.277776 0.267776 0.257776 0.257776 0.277776 0.297776 +0.327776 0.357776 0.377776 0.397776 0.407776 0.427776 0.437776 0.387776 +0.367776 0.347776 0.337776 0.287776 0.277776 0.277776 0.277776 0.267776 +0.267776 0.267776 0.297776 0.317776 0.347776 0.367776 0.367776 0.357776 +0.347776 0.337776 0.307776 0.287776 0.257776 0.227776 0.197776 0.167776 +0.167776 0.167776 0.167776 0.167776 0.157776 0.157776 0.157776 0.157776 +0.147776 0.147776 0.147776 0.137776 0.137776 0.111111 0.1 0.0888889 +0.0777778 0.0666667 0.0555556 0.0444444 0.0333333 0.0222222 0.0111111 +0 -0.0111111; 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+#X coords 0 1 258 -1 200 100 1; +#X restore 619 281 graph; +#X text 566 533 updated for Pd version 0.37; +#X obj 26 218 tabread~ 29-sequence; +#X obj 106 241 wrap~; +#X obj 106 265 *~ 100; +#X obj 106 289 +~ 1; +#X obj 26 242 phasor~; +#X obj 26 266 -~ 0.5; +#X obj 27 377 cos~; +#X obj 84 336 *~; +#X obj 28 488 output~; +#X obj 84 408 tabread4~ 29-sample; +#X obj 106 313 tabread4~ 29-envelope; +#X obj 84 360 *~ 128; +#X obj 84 384 +~ 129; +#X obj 27 401 +~ 1; +#X obj 26 194 *~ 9; +#N canvas 328 85 609 424 make-tables 0; +#X msg 109 52 bang; +#X obj 109 77 t b b; +#X obj 152 134 f; +#X obj 190 134 + 1; +#X msg 174 106 0; +#X obj 109 103 until; +#X obj 152 162 t f f; +#X obj 27 190 moses 10; +#X obj 18 272 tabwrite 29-envelope; +#X obj 75 159 sel 102; +#X obj 23 218 expr ($f1-1)/10; +#X obj 35 243 expr (101-$f1)/90; +#X msg 120 380 \; 29-sample cosinesum 256 0 0 0 0 0 0 1; +#X msg 120 338 \; 29-sequence 0 55 550 385 495 165 385 495 275 615 +; +#X text 30 8 bang to recalculate the envelope table (I did this but +then went in and changed it with the mouse afterward.); +#X text 84 299 The sequence is just a list of specified frequencies +\; the wavetable is a cosine.; +#X connect 0 0 1 0; +#X connect 1 0 5 0; +#X connect 1 1 4 0; +#X connect 2 0 3 0; +#X connect 2 0 6 0; +#X connect 2 0 9 0; +#X connect 3 0 2 1; +#X connect 4 0 2 1; +#X connect 5 0 2 0; +#X connect 6 0 7 0; +#X connect 6 1 8 1; +#X connect 7 0 10 0; +#X connect 7 1 11 0; +#X connect 9 0 5 1; +#X connect 10 0 8 0; +#X connect 11 0 8 0; +#X restore 689 401 pd make-tables; +#X text 46 1 ANALOG-SYNTH-STYLE SEQUENCER; +#X obj 26 170 phasor~ 0.6; +#X text 27 27 Some control operations can be carried out entirely by +tilde objects passing audio signals around. Here is an imitation of +an analog sequencer and envelope generator. A phasor~ loops through +the "sequence" table at 0.6 Hz \, generating 9 frequencies. Simultaneously +\, by multiplying by 9 and wrapping \, we create a sawtooth at 9*0.6=5.4 +Hz \, which reads a second table for an envelope shape. This becomes +the grain size for a samplerbased on the 18.sampler.looped example +earlier.; +#X text 97 194 main loop: sawtooth of amplitude 9; +#X text 218 219 read frequency sequence; +#X text 162 241 9x original frequency sawtooth; +#X text 173 266 adjust for reading; +#X text 346 266 envelope sample; +#X text 123 336 multiply envelope by audio-frequency sawtooth; +#X text 147 361 adjust amplitude and center for wavetable; +#X text 62 428 multiply by raised-cosine smoothing function; +#X text 478 401 how to make the tables:; +#X connect 1 0 2 0; +#X connect 2 0 14 0; +#X connect 2 0 14 1; +#X connect 6 0 10 0; +#X connect 7 0 8 0; +#X connect 8 0 9 0; +#X connect 9 0 16 0; +#X connect 10 0 11 0; +#X connect 11 0 13 0; +#X connect 11 0 12 0; +#X connect 12 0 19 0; +#X connect 13 0 17 0; +#X connect 15 0 1 1; +#X connect 16 0 13 1; +#X connect 17 0 18 0; +#X connect 18 0 15 0; +#X connect 19 0 1 0; +#X connect 20 0 6 0; +#X connect 20 0 7 0; +#X connect 23 0 20 0; |