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#X obj 320 579 print;
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#X obj 320 549 spigot;
#X msg 314 471 0;
#X msg 351 471 1;
#X msg 442 427 bang;
#X obj 429 518 bonk~;
#X msg 442 244 learn 1;
#X msg 442 304 learn 0;
#X msg 437 486 print;
#X obj 390 467 adc~;
#X text 320 597 cooked;
#X msg 565 76 \; pd dsp 1;
#X obj 257 579 print;
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#X msg 251 471 0;
#X msg 282 471 1;
#X text 257 597 raw;
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#X msg 209 222 \$1 \, 0 200;
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#X msg 442 334 forget;
#X msg 442 364 write templates.txt;
#X msg 442 394 read templates.txt;
#X msg 835 33 90;
#X msg 442 120 thresh 6 50;
#X text 8 70 The Bonk object takes an audio signal input and looks
for "attacks" defined as sharp changes in the spectral envelope of
the incoming sound. Optionally \, and less reliably \, you can have
Bonk check the attack against a collection of stored templates to try
to guess which of two or more instruments was hit. Bonk is described
theoretically in the 1998 ICMC proceedings \, reprinted on http://man104nfs.ucsd.edu/~mpuckett.
;
#X text 470 70 click here;
#X text 471 83 to start DSP;
#X text 8 191 Bonk's two outputs are the raw spectrum of the attack
(provided as a list of 11 numbers giving the signal "loudness" in the
11 frequency bands used) \, and the "cooked" output which gives only
an instrument number (counting up from zero) and a "velocity". The
instrumnent number is significant only if Bonk has a "template set"
in memory.;
#X text 8 368 In this patch \, after starting DSP \, you can print
out the raw or cooked output using the two "spigots" or listen to a
synthesizer output by raising its volume.;
#X text 259 448 enable printout;
#X text 705 32 output volume;
#X text 719 50 (0-100);
#X text 533 118 Set low and high thresholds. Signal growth must exceed
the high one and then fall to the low one to make an attack.;
#X text 533 151 Minimum velocity to output (quieter notes are ignored.)
;
#X msg 442 180 mask 4 0.7;
#X msg 442 214 debounce 0;
#X text 8 299 Bonk's analysis is carried out on a 256-point window
(6 msec at 44.1 kHz) and by default the analysis period is 128 samples.
The analysis period can be specified as Bonk's creation argument but
must be a multiple of 64;
#X text 532 219 Minimum time (msec) between attacks;
#X text 532 170 Describes how energy in each frequency band masks later
energy in the band. Here the masking is total for 4 analysis periods
and then drops by 0.7 each period.;
#X text 530 244 Forget all templates and start learning new ones. The
argument gives the number of times you will hit each instrument (10
recommended.) Turn on the output volume above for audible feedback
as you train Bonk. "Learn 0" exits learn mode.;
#X text 530 328 Forget the last template. In Learn mode \, use "forget"
to erase and record over a template.;
#X text 595 368 Write templates to a file in text-editable format.
;
#X text 596 398 Read templates from a file.;
#X text 538 493 Print out all settings and templates.;
#X msg 442 150 minvel 10;
#X text 538 426 Poll the current spectrum via "raw" outlet \, You can
set a very high threshold if you don't want attacks mixed in.;
#X text 218 12 BONK - an attack detector for small percussion instruments
;
#X msg 634 517 print;
#X msg 437 456 debug 0;
#X text 538 466 turn debugging on or off.;
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