86 lines
2.2 KiB
Plaintext
86 lines
2.2 KiB
Plaintext
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#N canvas 1114 169 788 600 12;
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#N canvas 335 184 569 608 fft 0;
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#X obj 43 105 inlet~;
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#X obj 243 263 inlet;
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#X obj 63 136 rfft~;
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#X obj 63 169 *~;
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#X obj 95 169 *~;
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#X obj 63 199 sqrt~;
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#X obj 366 153 block~ 4096 1;
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#X obj 63 225 biquad~ 0 0 0 0 1;
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#X text 127 137 Fourier series;
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#X text 132 190 magnitude;
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#X text 130 175 calculate;
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#X text 60 26 This subpatch computes the spectrum of the incoming signal
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with a (rectangular windowed) FFT. FFTs aren't properly introduced
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until much later.;
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#X text 105 104 signal to analyze;
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#X text 194 216 delay two samples;
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#X text 192 234 for better graphing;
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#X obj 298 501 samplerate~;
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#X obj 298 524 / 256;
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#X obj 273 332 metro 500;
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#X obj 272 292 inlet;
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#X text 325 290 toggle to graph repeatedly;
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#X text 297 263 bang to graph once;
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#X obj 63 249 /~ 4096;
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#X obj 298 476 bang~;
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#X msg 243 389 \; pd dsp 1;
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#X obj 298 549 s freq;
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#X obj 43 392 tabwrite~ \$0-signal;
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#X obj 272 366 tabwrite~ \$0-spectrum;
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#X connect 0 0 2 0;
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#X connect 21 0 26 0;
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#X connect 22 0 15 0;
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#X restore 404 361 pd fft;
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#X obj 190 68 bng 18 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
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-1;
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#X obj 190 102 tgl 18 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
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1;
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#X text 212 68 <= graph once;
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#X text 211 101 <= repeatedly;
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#N canvas 0 0 450 300 (subpatch) 0;
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#X array \$0-signal 882 float 0;
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#X coords 0 1.02 882 -1.02 200 130 1 0 0;
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#X restore 80 380 graph;
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#N canvas 0 0 450 300 (subpatch) 0;
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#X array \$0-spectrum 259 float 0;
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#X coords 0 0.51 258 -0.008 256 130 1;
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#X restore 48 167 graph;
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#X text 80 513 ---- 0.02 seconds ----;
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#X text 77 298 2;
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#X text 108 298 4;
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#X text 47 298 0;
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#X text 119 323 -- partial number --;
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#X text 140 298 6;
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#X text 173 298 8;
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#X text 201 298 10;
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#X text 233 298 12;
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#X text 265 298 14;
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#X obj 404 245 inlet~;
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#X text 58 492 -1;
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#X text 65 376 1;
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#X coords 0 -1 1 1 300 500 1 30 50;
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