path: root/pd/extra/bonk~/bonk~-help.pd

#N canvas 33 37 964 579 12;
#X obj 382 492 spigot;
#X msg 452 292 bang;
#X obj 452 456 bonk~;
#X msg 452 359 print;
#X obj 396 429 adc~;
#X msg 637 506 \; pd dsp 1;
#X obj 300 492 spigot;
#N canvas 366 126 604 404 synth 0;
#X obj 112 24 r bonk-cooked;
#X obj 112 49 unpack;
#X obj 112 99 * 12;
#X obj 112 124 div 7;
#X obj 112 74 + 1;
#X obj 112 174 mtof;
#X obj 112 224 osc~;
#X obj 112 249 cos~;
#X obj 112 149 + 47;
#X obj 209 247 line~;
#X obj 209 272 *~;
#X obj 209 297 lop~ 500;
#X obj 112 274 *~;
#X obj 103 361 dac~;
#X obj 253 165 dbtorms;
#X obj 253 115 * 0.5;
#X obj 253 140 + 50;
#X obj 211 189 f;
#X msg 173 159 bang;
#X obj 258 83 inlet;
#X obj 111 307 hip~ 5;
#X msg 34 24 0 60;
#X obj 112 199 sig~;
#X msg 209 222 \$1 \, 0 200;
#X connect 0 0 1 0;
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#X restore 869 523 pd synth;
#X floatatom 869 500 0 0 0 0 - - -;
#X msg 869 470 0;
#X msg 900 470 90;
#X text 625 472 click here;
#X text 626 485 to start DSP;
#X text 5 284 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 770 469 output volume;
#X text 784 487 (0-100);
#X msg 452 140 mask 4 0.7;
#X text 547 122 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 497 288 Poll the current spectrum via "raw" outlet \, You can
set a very high threshold if you don't want attacks mixed in.;
#X msg 452 333 debug 0;
#X text 530 333 turn debugging on or off.;
#X obj 349 493 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
1;
#X obj 431 493 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
1;
#X obj 382 522 print cooked;
#X obj 300 522 print raw;
#X text 182 493 enable printout:;
#X text 529 204 Minimum "velocity" to output (quieter notes are ignored.)
;
#X obj 485 481 s bonk-cooked;
#X text 8 144 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". This
"velocity" is the sum of the square roots of the amplitudes of the
bands \, normalized so that 100 is an attack of amplitude of about
1 The instrument number is significant only if Bonk has a "template
set" in memory.;
#X text 549 37 Set low and high thresholds. Signal growth must exceed
the high one and then fall to the low one to make an attack. The unit
is the sum of the proportional growth in the 11 filter bands. Proportional
growth is essentially the logarithmic time derivative.;
#X msg 452 386 print 1;
#X text 520 388 print out filterbank settings;
#X text 9 32 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 crca.ucsd.edu/~msp
.;
#N canvas 422 63 701 719 creation-arguments 0;
#X text 228 14 creation arguments for bonk~;
#X text 70 272 -npts 256;
#X text 44 244 default value:;
#X text 70 308 -hop 128;
#X text 70 342 -nfilters 11;
#X text 68 380 -halftones 6;
#X text 76 514 -overlap 1;
#X text 79 567 -firstbin 1;
#X text 71 454 -minbandwidth 1.5;
#X text 122 147 All frequency parameters are specified in 'bins'. One
bin is the sample rate divided by the window size. The minimum possible
bandwidth is 1.5 bins. Higher bandwidths give numerically more robust
outputs.;
#X text 43 229 Arguments and;
#X text 212 270 window size in points;
#X text 210 306 analysis period ("hop size") in points;
#X text 212 340 number of filters to use;
#X text 212 379 desired bandwidth of filters in halftones \, effective
in the exponentially spaced region. (At lower center frequencies the
bandwidth is supported by the "minbandwidth" parameter below).;
#X text 212 511 overlap factor between filters. If 1 \, the filters
are spaced to line up at their half-power points. Other values specify
more or fewer filters proportionally.;
#X text 121 49 bonk~ uses a filterbank whose center frequencies are
spaced equally at low frequencies and proportionally at high ones -
i.e. \, they increase linearly \, then exponentially. They are determined
by the filters' bandwidths and overlap. The bandwidths are specified
proportionally to frequency but bounded below by a specified minimum.
;
#X text 210 455 minimum bandwidth in bins. If the bandwidth specified
by "halftones" is smaller than this \, this value is used. This must
be at least 1.5.;
#X text 212 567 center frequency \, in bins \, of the lowest filter.
The others are computed from this.;
#X restore 147 414 pd creation-arguments;
#N canvas 660 173 579 589 templates 0;
#X msg 76 197 learn 0;
#X msg 76 227 forget;
#X msg 76 257 write templates.txt;
#X msg 76 287 read templates.txt;
#X msg 76 107 debounce 0;
#X msg 76 137 learn 10;
#X obj 62 431 outlet;
#X text 155 133 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 155 217 Forget the last template. In Learn mode \, use "forget"
to erase and record over a template.;
#X text 220 253 Write templates to a file in text-editable format.
;
#X text 221 283 Read templates from a file.;
#X text 157 104 Minimum time (msec) between attacks in learn mode;
#X connect 0 0 6 0;
#X connect 1 0 6 0;
#X connect 2 0 6 0;
#X connect 3 0 6 0;
#X connect 4 0 6 0;
#X connect 5 0 6 0;
#X restore 469 423 pd templates;
#X msg 452 70 thresh 2.5 5;
#X msg 452 175 attack-frames 1;
#X text 574 176 number of frames over which to measure growth;
#X text 564 423 more messages for managing templates;
#X msg 452 203 minvel 7;
#X msg 452 230 spew 0;
#X text 519 232 Turn spew mode on/off;
#X msg 452 257 useloudness 0;
#X text 558 265 experimental: use alternative loudness units;
#X text 212 9 BONK~ - attack detection and spectral envelope measurement
;
#X text 734 552 Updated for Pd version 0.42;
#X text 5 343 By default bonk's analysis is carried out on a 256-point
window (6 msec at 44.1 kHz) and the analysis period is 128 samples.
These and other parameters may be overridden using creation arguments
as shown in the subpatch below:;
#X text 521 358 Print out settings and templates.;
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#X connect 40 0 2 0;
#X connect 42 0 2 0;