/usr/share/puredata/doc/3.audio.examples/osc-voice.pd is in puredata-doc 0.48.1-3.
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#X obj 163 390 line~;
#X obj 401 438 line~;
#X obj 163 511 *~;
#X obj 383 229 r \$1;
#X obj 363 316 dbtorms;
#X obj 383 281 unpack;
#X obj 383 255 t l b;
#X obj 401 412 pack;
#X obj 447 283 30;
#X obj 163 286 unpack;
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#X obj 163 470 osc~;
#X obj 163 312 mtof;
#X obj 363 342 sqrt;
#X obj 363 368 sqrt;
#X obj 163 338 sqrt;
#X obj 163 364 sqrt;
#X obj 163 418 *~;
#X obj 163 444 *~;
#X obj 401 464 *~;
#X obj 400 492 *~;
#X obj 96 486 inlet~;
#X obj 96 538 outlet~;
#X obj 96 512 +~;
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#X msg 294 316 set \$1;
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#X floatatom 96 336 0 0 0;
#X msg 96 310 set \$1;
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#X text 370 201 amplitude;
#X text 157 233 pitch;
#X text 27 36 The amplitude and pitch are controlled by quartic envelopes
as in the previous example. Here we introduce two new features. First
\, there are number boxes to show the most recent targets for amplitude
and frequency \, which you can also use to change the values. Also
\, if amplitude gets a message without an explicit time value \, we
supply a default of "30".;
#X text 27 149 Other small differences from the previous patch: pitch
and amplitude are now in MIDI and dB \, and there's a summing bus arrangement
(the inlet~ \, +~ \, and outlet~).;
#X text 15 295 see or;
#X text 16 315 change;
#X text 16 336 pitch-->;
#X text 233 325 and;
#X text 233 342 amp-->;
#X text 488 283 "30" is short for "float 30." This is;
#X text 495 302 more CPU efficient than a message.;
#X text 451 403 The "pack" always gets a 30 \, but if you send a pair
of numbers to amplitude \, the second one overrides the 30;
#X text 439 254 first bang the "30" \, then pass the list on;
#X text 62 7 This abstraction is used in patch 68.qlist.pd.;
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