#N canvas 18 14 650 653 12;
#X floatatom 32 60 0 0 0 0 - - -;
#X obj 32 86 mtof;
#X obj 32 323 output~;
#X msg 32 34 60;
#X text 67 63 <-- choose a pitch;
#X text 68 34 <-- reset to middle C;
#X obj 32 154 osc~;
#X obj 73 130 * 2;
#X obj 73 154 osc~;
#X obj 137 154 osc~;
#X obj 137 130 * 3;
#X obj 201 155 osc~;
#X obj 201 131 * 4;
#X obj 137 179 *~ 0.2;
#X obj 33 289 +~;
#X obj 74 259 *~;
#X obj 109 260 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
1;
#X obj 74 210 +~;
#X obj 74 234 +~;
#X text 133 7 Adding sinusoids to make a complex tone;
#N canvas 0 0 450 300 graph1 0;
#X array tab.01.07 882 float 0;
#X coords 0 1.02 881 -1.02 200 130 1;
#X restore 426 222 graph;
#X msg 116 295 bang;
#X text 165 294 <-- click to graph;
#X text 260 129 frequencies of harmonics;
#X text 260 155 four oscillators;
#X text 264 181 adjust amplitudes;
#X text 109 233 add the three overtones together;
#X obj 116 324 tabwrite~ tab.01.07;
#X text 381 632 updated for Pd version 0.40.;
#X text 429 360 ---- 0.02 seconds ----;
#X obj 73 179 *~ 0.1;
#X obj 201 179 *~ 0.5;
#X text 129 259 <-- overtones ON/OFF;
#X text 29 580 To hear the output \, choose a pitch (at top) \, optionally
click the "overtones" control \, and mouse up the output volume. Click
the "bang" message to graph it.;
#X text 31 392 A simple way to build non-sinusoidal \, periodic musical
tones is to sum a series of harmonically tuned sinusoids. Here the
four oscillators have frequencies in a 1:2:3:4 ratio (the three "*"
objects compute the second \, third \, and fourth one). The amplitudes
are adjusted by the "*~ 0.1" \, etc. \, objects. Note that \, since
the frequency (from the "mtof") is a message \, a "*" box suffices
to operate on it \, but the oscillator's output \, being an audio signal
\, needs "*~" instead. The control marked "overtones ON/OFF" is a toggle
switch. Click to turn it on and off. Of the overtones are "off" you
hear only a sinusoid from the forst oscillator. If on \, you hear all
four.;
#X connect 0 0 1 0;
#X connect 1 0 6 0;
#X connect 1 0 7 0;
#X connect 1 0 10 0;
#X connect 1 0 12 0;
#X connect 3 0 0 0;
#X connect 6 0 14 0;
#X connect 7 0 8 0;
#X connect 8 0 30 0;
#X connect 9 0 13 0;
#X connect 10 0 9 0;
#X connect 11 0 31 0;
#X connect 12 0 11 0;
#X connect 13 0 17 1;
#X connect 14 0 2 0;
#X connect 14 0 2 1;
#X connect 14 0 27 0;
#X connect 15 0 14 1;
#X connect 16 0 15 1;
#X connect 17 0 18 0;
#X connect 18 0 15 0;
#X connect 21 0 27 0;
#X connect 30 0 17 0;
#X connect 31 0 18 1;