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+#X obj 136 141 / 100;
+#X obj 18 129 phasor~;
+#X obj 18 284 output~;
+#X obj 17 253 hip~;
+#X text 442 513 updated for Pd version 0.37;
+#N canvas 122 211 558 609 fft 1;
+#X obj 19 61 inlet~;
+#X obj 208 212 inlet;
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+#X obj 29 155 sqrt~;
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+#X text 93 93 Fourier series;
+#X text 98 146 magnitude;
+#X text 96 131 calculate;
+#X text 21 3 This subpatch computes the spectrum of the incoming signal
+with a (rectangular windowed) FFT. FFTs aren't properly introduced
+until much later.;
+#X text 83 61 signal to analyze;
+#X text 193 164 delay two samples;
+#X text 191 182 for better graphing;
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+#X obj 19 482 / 256;
+#X obj 19 412 loadbang;
+#X obj 75 528 s fundamental;
+#X text 17 359 At load time \, calculate a good choice of fundamental
+frequency for showing spectra: the 16th bin in a 4096-point spectrum
+\, so SR*16/4096 or SR/256.;
+#X obj 231 259 metro 500;
+#X obj 231 236 inlet;
+#X text 284 234 toggle to graph repeatedly;
+#X text 262 212 bang to graph once;
+#X obj 19 295 tabwrite~ E09-signal;
+#X obj 231 298 tabwrite~ E09-spectrum;
+#X obj 19 528 t b f;
+#X msg 19 551 \; cm 6;
+#X text 25 585 set carrier multiplier after fundamental;
+#X obj 29 205 /~ 4096;
+#X msg 209 322 \; pd dsp 1;
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+#X text 144 222 <-- graph once;
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+#X text 442 114 ---- 0.02 seconds ----;
+#X text 433 306 2;
+#X text 464 306 4;
+#X text 403 306 0;
+#X text 441 321 -- partial number --;
+#X text 497 8 WAVEFORM;
+#X text 497 157 SPECTRUM;
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+#X text 664 173 0.5;
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+#X obj 93 86 r fundamental;
+#X text 171 117 index (x100);
+#X text 496 306 6;
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+#X text 43 3 SPECTRUM OF TWO-OPERATOR PHASE MODULATION;
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+#X obj 18 33 r cm;
+#X text 52 57 carrier harmonic #;
+#X text 71 367 This patch measures the spectrum of two-operator phase
+modulation. The carrier frequency is initially six times the modulation
+frequency \, but you can change it with the "carrier harmonic #" control.
+Changing the index changes the relative strengths of the harmonics.
+Past a certain index (which depends on the carrier frequency) the lower
+sidebands begin to reflect about the left edge of the spectrum \, causing
+complicated interference effects.;
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