diff options
Diffstat (limited to 'desiredata/doc/3.audio.examples/D04.envelope.quartic.pd')
-rw-r--r-- | desiredata/doc/3.audio.examples/D04.envelope.quartic.pd | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/desiredata/doc/3.audio.examples/D04.envelope.quartic.pd b/desiredata/doc/3.audio.examples/D04.envelope.quartic.pd new file mode 100644 index 00000000..5b440ebe --- /dev/null +++ b/desiredata/doc/3.audio.examples/D04.envelope.quartic.pd @@ -0,0 +1,81 @@ +#N canvas 130 66 646 584 12; +#X obj 21 345 osc~; +#X obj 21 370 *~; +#X obj 81 350 line~; +#X obj 21 320 line~; +#X obj 163 455 osc~; +#X obj 212 483 *~; +#X obj 234 366 line~; +#X obj 163 366 line~; +#X obj 163 313 sqrt; +#X obj 163 339 sqrt; +#X obj 234 313 sqrt; +#X obj 234 339 sqrt; +#X obj 163 398 *~; +#X obj 163 428 *~; +#X obj 234 398 *~; +#X obj 234 427 *~; +#X obj 163 288 unpack; +#X obj 234 288 unpack; +#X obj 21 295 r freq; +#X obj 81 326 r amp; +#X obj 163 263 r freq; +#X obj 234 263 r amp; +#X msg 340 277 \; amp 0 5000 \;; +#X msg 340 232 \; amp 1 5000 \;; +#X msg 492 278 \; amp 0 1000 \;; +#X msg 494 232 \; amp 1 1000 \;; +#X msg 337 357 \; freq 1760 5000 \;; +#X msg 338 404 \; freq 55 5000 \;; +#X msg 493 357 \; freq 1760 1000 \;; +#X msg 496 405 \; freq 55 1000 \;; +#X text 90 15 QUARTIC AND LINEAR ENVELOPES COMPARED; +#X obj 341 464 loadbang; +#X msg 341 492 \; amp 1 \; freq 1760; +#X text 22 265 LINEAR; +#X text 168 236 QUARTIC; +#X obj 21 397 output~; +#X obj 212 509 output~; +#X text 14 123 In the quartic example \, for both the amplitude and +the frequency \, we have to take the fourth root of the target value +(which we get by taking square root twice.) Then we raise the line~ +output to the fourth power by squaring twice (the *~ objects \, whose +left and right inlets are the same.) The cost is mostly that of the +four additional *~ objects.; +#X text 350 553 updated for Pd version 0.37; +#X text 19 39 This patch has two sine wave oscillators \, one with +linear envelopes \, the other with quartic ones which sound more uniform. +The message boxes sweep the amplitude and frequency up and down. You +can compare the two to see that quartic-shaped changes sound more uniform +than linear ones.; +#X connect 0 0 1 0; +#X connect 1 0 35 0; +#X connect 1 0 35 1; +#X connect 2 0 1 1; +#X connect 3 0 0 0; +#X connect 4 0 5 0; +#X connect 5 0 36 0; +#X connect 5 0 36 1; +#X connect 6 0 14 0; +#X connect 6 0 14 1; +#X connect 7 0 12 0; +#X connect 7 0 12 1; +#X connect 8 0 9 0; +#X connect 9 0 7 0; +#X connect 10 0 11 0; +#X connect 11 0 6 0; +#X connect 12 0 13 0; +#X connect 12 0 13 1; +#X connect 13 0 4 0; +#X connect 14 0 15 0; +#X connect 14 0 15 1; +#X connect 15 0 5 1; +#X connect 16 0 8 0; +#X connect 16 1 7 1; +#X connect 17 0 10 0; +#X connect 17 1 6 1; +#X connect 18 0 3 0; +#X connect 19 0 2 0; +#X connect 20 0 16 0; +#X connect 21 0 17 0; +#X connect 31 0 32 0; |