diff options
author | Miller Puckette <millerpuckette@users.sourceforge.net> | 2005-05-18 04:13:48 +0000 |
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committer | Miller Puckette <millerpuckette@users.sourceforge.net> | 2005-05-18 04:13:48 +0000 |
commit | bb13717ae41bfa317e7b84625201279a5a2a09d9 (patch) | |
tree | 78d9acb9b2a682a583c3f3e1fa36e8040abd6108 /pd/doc/4.fft.examples/03.denoise.pd | |
parent | 99748c970453721baa62a895c22f0b8d3b4796b7 (diff) |
get rid of obsolete audio examples
svn path=/trunk/; revision=3005
Diffstat (limited to 'pd/doc/4.fft.examples/03.denoise.pd')
-rw-r--r-- | pd/doc/4.fft.examples/03.denoise.pd | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/pd/doc/4.fft.examples/03.denoise.pd b/pd/doc/4.fft.examples/03.denoise.pd deleted file mode 100644 index 09e1244e..00000000 --- a/pd/doc/4.fft.examples/03.denoise.pd +++ /dev/null @@ -1,364 +0,0 @@ -#N canvas 54 36 882 556 12; -#X floatatom 306 344; -#X floatatom 68 337; -#N canvas 72 0 896 679 fft-analysis 0; -#X obj 140 447 *~; -#X obj 54 705 *~; -#X obj 139 612 *~; -#X floatatom 206 267; -#X obj 185 349 *~; -#X obj 356 188 + 1; -#X msg 447 257 0; -#X obj 173 181 *~; -#X obj 57 89 *~; -#X obj 95 641 *~; -#X obj 57 49 inlet~; -#X obj 54 642 *~; -#X obj 126 68 tabreceive~ hanning; -#X obj 57 136 rfft~; -#X obj 54 672 rifft~; -#X obj 55 743 outlet~; -#X text 132 50 Hanning window; -#X text 63 115 forward real FFT; -#X text 72 721 inverse real FFT; -#X graph graph1 0 0 1024 20 491 631 891 331; -#X array mask 1024 float; -#X pop; -#X obj 134 180 *~; -#X obj 134 209 +~; -#X msg 447 132 0; -#X obj 317 129 float; -#X obj 377 149 + 1; -#X obj 318 72 bang~; -#X obj 318 101 spigot; -#X obj 449 186 < 10; -#X floatatom 497 185; -#X obj 256 306 tabreceive~ mask; -#X obj 357 267 /; -#X msg 357 237 1; -#X obj 230 350 -~; -#X obj 370 331 sig~; -#X obj 447 232 sel 0; -#X obj 348 356 *~; -#X obj 331 387 +~; -#X obj 330 412 tabsend~ mask; -#X floatatom 448 287; -#X obj 316 156 t f f; -#X obj 446 56 r make-mask; -#X obj 206 296 sig~; -#X obj 206 241 r mask-level; -#X obj 140 414 /~; -#X obj 356 212 t b f; -#X obj 177 612 sig~ 0.001; -#X obj 29 781 block~ 1024 4; -#X obj 663 76 r window-size; -#X obj 447 84 t b f; -#X obj 676 137 t b f; -#X obj 663 171 /; -#X obj 661 194 * 250; -#X text 728 202 hop size in msec; -#X obj 497 107 /; -#X text 497 206 number of; -#X text 505 221 frames; -#X text 439 12 calculate a mask using N msec of; -#X text 438 30 background noise; -#X obj 176 415 sig~ 1e-20; -#X text 152 467 multiply the signal by the; -#X text 153 485 quantity s/(s+m) where "s"; -#X text 152 505 is signal power and "m" is mask.; -#X text 153 527 The multiplier is close to 1 if; -#X text 155 549 s>>m \, but close to 0 if s<<m.; -#X text 157 572 We gratuitously square it.; -#X floatatom 657 237; -#X obj 699 109 r srate; -#X connect 0 0 2 0; -#X connect 1 0 15 0; -#X connect 2 0 11 1; -#X connect 2 0 9 1; -#X connect 3 0 41 0; -#X connect 4 0 43 1; -#X connect 5 0 44 0; -#X connect 6 0 38 0; -#X connect 7 0 21 1; -#X connect 8 0 13 0; -#X connect 9 0 14 1; -#X connect 10 0 8 0; -#X connect 11 0 14 0; -#X connect 12 0 8 1; -#X connect 12 0 1 1; -#X connect 13 0 11 0; -#X connect 13 0 20 0; -#X connect 13 0 20 1; -#X connect 13 1 9 0; -#X connect 13 1 7 0; -#X connect 13 1 7 1; -#X connect 14 0 1 0; -#X connect 20 0 21 0; -#X connect 21 0 32 0; -#X connect 21 0 43 0; -#X connect 21 0 43 1; -#X connect 22 0 23 1; -#X connect 22 0 27 0; -#X connect 23 0 39 0; -#X connect 23 0 24 0; -#X connect 24 0 23 1; -#X connect 25 0 26 0; -#X connect 26 0 23 0; -#X connect 27 0 26 1; -#X connect 27 0 34 0; -#X connect 28 0 27 1; -#X connect 29 0 32 1; -#X connect 29 0 4 0; -#X connect 29 0 36 0; -#X connect 30 0 38 0; -#X connect 31 0 30 0; -#X connect 32 0 35 0; -#X connect 33 0 35 1; -#X connect 34 0 6 0; -#X connect 35 0 36 1; -#X connect 36 0 37 0; -#X connect 38 0 33 0; -#X connect 39 0 27 0; -#X connect 39 1 5 0; -#X connect 40 0 48 0; -#X connect 41 0 4 1; -#X connect 42 0 3 0; -#X connect 43 0 0 0; -#X connect 43 0 0 1; -#X connect 44 0 31 0; -#X connect 44 1 30 1; -#X connect 45 0 2 1; -#X connect 47 0 50 0; -#X connect 48 0 22 0; -#X connect 48 1 53 0; -#X connect 49 0 50 0; -#X connect 49 1 50 1; -#X connect 50 0 51 0; -#X connect 51 0 53 1; -#X connect 51 0 65 0; -#X connect 53 0 28 0; -#X connect 58 0 43 1; -#X connect 66 0 49 0; -#X restore 67 412 pd fft-analysis; -#X obj 67 470 dac~; -#N canvas 99 31 767 592 hanning-window 0; -#X obj 108 242 phasor~; -#X obj 108 275 cos~; -#X obj 27 386 tabwrite~ hanning; -#X obj 35 297 -~; -#X obj 33 257 sig~ 1; -#X msg 44 212 0; -#X text 166 16 CALCULATE HANNING; -#X text 166 32 WINDOW TABLE; -#X graph graph1 0 -1 1024 1 308 538 708 238; -#X array hanning 1024 float; -#X pop; -#X msg 308 550 \; hanning resize 1024; -#X obj 109 154 / 1024; -#X obj 109 201 sig~; -#X text 206 174 sample rate / window size; -#X msg 27 169 bang; -#X obj 78 316 sig~ 0.5; -#X obj 58 353 *~; -#X obj 79 113 samplerate~; -#X obj 29 27 r window-size; -#X obj 29 62 t b f; -#X connect 0 0 1 0; -#X connect 1 0 3 1; -#X connect 3 0 15 0; -#X connect 4 0 3 0; -#X connect 5 0 0 1; -#X connect 10 0 11 0; -#X connect 11 0 0 0; -#X connect 13 0 2 0; -#X connect 13 0 5 0; -#X connect 14 0 15 1; -#X connect 15 0 2 0; -#X connect 16 0 10 0; -#X connect 17 0 18 0; -#X connect 18 0 16 0; -#X connect 18 0 13 0; -#X connect 18 1 10 1; -#X restore 459 435 pd hanning-window; -#X text 157 311 noise; -#X text 91 289 amplitudes; -#X obj 476 467 loadbang; -#N canvas 132 255 634 335 insample 0; -#X graph graph1 0 -1 155947 1 200 170 600 20; -#X array sample 155948 float; -#X pop; -#X obj 21 78 r read-sample; -#X obj 21 106 unpack s f; -#X obj 59 134 s insamprate; -#X obj 21 190 soundfiler; -#X msg 21 163 read -resize \$1 sample; -#X obj 21 223 s insamplength; -#X msg 397 219 \; sample resize 220500 \; insamplength 220500; -#X connect 1 0 2 0; -#X connect 2 0 5 0; -#X connect 2 1 3 0; -#X connect 4 0 6 0; -#X connect 5 0 4 0; -#X restore 459 407 pd insample; -#X obj 306 369 s mask-level; -#X obj 119 474 line~; -#X obj 67 442 *~; -#X obj 476 495 samplerate~; -#X obj 476 523 s srate; -#X floatatom 164 338; -#X obj 676 312 hip~ 5; -#X obj 676 284 adc~ 1; -#X msg 749 248 bang; -#X obj 782 284 r srate; -#X obj 749 284 f; -#X obj 749 312 s insamprate; -#X msg 24 209 \; window-size 1024 \; pd dsp 1; -#X obj 676 340 tabwrite~ sample; -#X msg 451 343 \; play-sample 0 5000; -#X floatatom 451 277; -#X floatatom 691 80; -#N canvas 194 37 397 591 output 0; -#X obj 95 230 t b; -#X obj 95 174 f; -#X obj 95 118 inlet; -#X text 101 94 mute; -#X obj 95 258 f; -#X msg 154 284 0; -#X msg 95 146 bang; -#X obj 95 202 moses 1; -#X obj 154 256 t b f; -#X obj 107 490 outlet; -#X msg 107 462 set \$1; -#X obj 228 182 moses 1; -#X obj 249 493 dbtorms; -#X obj 249 521 pack 0 100; -#X obj 228 154 r master-lvl; -#X obj 107 424 r master-lvl; -#X obj 95 315 s master-lvl; -#X obj 249 549 s master-out; -#X connect 0 0 4 0; -#X connect 1 0 7 0; -#X connect 2 0 6 0; -#X connect 4 0 16 0; -#X connect 5 0 16 0; -#X connect 6 0 1 0; -#X connect 7 0 0 0; -#X connect 7 1 8 0; -#X connect 8 0 5 0; -#X connect 10 0 9 0; -#X connect 11 1 4 1; -#X connect 12 0 13 0; -#X connect 13 0 17 0; -#X connect 14 0 1 1; -#X connect 14 0 11 0; -#X connect 15 0 10 0; -#X connect 15 0 12 0; -#X restore 691 52 pd output; -#X msg 691 24 mute; -#X obj 119 446 r master-out; -#X text 734 71 MASTER; -#X text 733 85 LEVEL; -#X obj 691 108 s master-lvl; -#X msg 305 314 6; -#X text 306 291 on; -#X text 351 292 off; -#X text 23 189 click here first; -#X text 301 189 read a sample; -#X text 670 221 record your own sample; -#X text 305 270 masking; -#X text 481 322 play sample back; -#X text 290 5 DENOISER; -#X text 74 22 This patch attempts to scrub the noise floor from a sample in two steps. First using the "make-mask" message (which is caught in the "fft-analysis" window) \, you estimate the background spectrum. Do this while only the background noise is playing.; -#X msg 350 315 0; -#X obj 451 301 metro 2000; -#X msg 201 213 \; read-sample ../sound/bell.aiff 44100; -#N canvas 190 43 534 552 test-signal 0; -#X obj 149 326 tabread4~ sample; -#X obj 149 298 line~; -#X obj 106 162 f; -#X obj 204 137 r insamprate; -#X obj 356 422 *~; -#X obj 151 389 *~; -#X obj 359 290 noise~; -#X obj 151 441 +~; -#X obj 182 390 dbtorms; -#X obj 384 422 dbtorms; -#X obj 182 365 inlet; -#X obj 384 398 inlet; -#X obj 359 375 *~; -#X obj 359 315 bp~ 2000 7; -#X obj 151 499 outlet~; -#X obj 122 109 r insamplength; -#X msg 149 274 0 \, \$1 \$2; -#X obj 149 246 pack 0 0; -#X obj 200 221 /; -#X obj 204 163 * 0.001; -#X obj 200 190 t b f; -#X text 347 260 nasty non-flat noise; -#X obj 151 469 hip~ 5; -#X obj 100 8 loadbang; -#X text 269 15 sample playback; -#X msg 100 30 1; -#X obj 99 74 metro 1000; -#X floatatom 99 51; -#X obj 385 349 phasor~ 3000; -#X connect 0 0 5 0; -#X connect 1 0 0 0; -#X connect 2 0 17 0; -#X connect 2 0 18 0; -#X connect 3 0 19 0; -#X connect 4 0 7 1; -#X connect 5 0 7 0; -#X connect 6 0 13 0; -#X connect 7 0 22 0; -#X connect 8 0 5 1; -#X connect 9 0 4 1; -#X connect 10 0 8 0; -#X connect 11 0 9 0; -#X connect 12 0 4 0; -#X connect 13 0 12 0; -#X connect 15 0 2 1; -#X connect 16 0 1 0; -#X connect 17 0 16 0; -#X connect 18 0 17 1; -#X connect 18 0 26 1; -#X connect 19 0 20 0; -#X connect 20 0 18 0; -#X connect 20 1 18 1; -#X connect 22 0 14 0; -#X connect 23 0 25 0; -#X connect 25 0 27 0; -#X connect 26 0 2 0; -#X connect 27 0 26 0; -#X connect 28 0 12 1; -#X restore 70 375 pd test-signal; -#X text 56 310 sampler; -#X msg 507 213 \; make-mask 1000; -#X msg 564 492 \; window-size 1024; -#X text 488 186 calculate noise mask; -#X text 74 98 Then turn both the sample and the noise on together \, set the "mask-level" to 6 or so and enjoy the result. Alternatively \, you could try to mask the bell out of the noise...; -#X connect 0 0 9 0; -#X connect 1 0 45 0; -#X connect 2 0 11 0; -#X connect 7 0 12 0; -#X connect 7 0 48 0; -#X connect 10 0 11 1; -#X connect 11 0 3 0; -#X connect 11 0 3 1; -#X connect 12 0 13 0; -#X connect 14 0 45 1; -#X connect 15 0 22 0; -#X connect 16 0 15 0; -#X connect 17 0 19 0; -#X connect 17 0 22 0; -#X connect 18 0 19 1; -#X connect 19 0 20 0; -#X connect 24 0 43 0; -#X connect 25 0 31 0; -#X connect 26 0 25 0; -#X connect 27 0 26 0; -#X connect 28 0 10 0; -#X connect 32 0 0 0; -#X connect 42 0 0 0; -#X connect 43 0 23 0; -#X connect 45 0 2 0; |