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diff --git a/desiredata/doc/3.audio.examples/F04.waveshaping.pulse.pd b/desiredata/doc/3.audio.examples/F04.waveshaping.pulse.pd
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-#X text 84 171 1+X^2;
-#X text 71 196 1/(1+X^2);
-#X text 28 4 ANOTHER PULSE WIDTH MOD ALGORITHM;
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-#X text 646 461 ---- 0.02 seconds ----;
-#X text 614 237 2;
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-#X text 584 237 0;
-#X text 622 252 -- partial number --;
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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;
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-#X msg 224 321 \; pd dsp 1;
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-#X text 632 540 updated for Pd version 0.37;
-#X text 23 515 NOTE: The PAF algorithm is protected by patents belonging
-to IRCAM. Noncommercial use seems to be fine with them but contact
-them first if you want to sell something using this.;
-#X text 24 473 This is the form of pulse train used in the original
-Phase Aligned Formant (PAF) algorithm.;
-#X text 23 342 Here we use waveshaping to make another form of pulse
-train. This one has a neat spectrum: the partials drop off exponentially
-(with the "bandwidth" controlling the rate of dropoff.) In later patches
-we'll use a wavetable to do the waveshaping but for simplicity \, it's
-done algebraically here. The oscillator runs at half the fundamental
-frequency. The symmetry of the waveshaping doubles the frequency of
-the output.;
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