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#N canvas 225 22 809 680 10;
#X text 21 122 In two dimensions \, only specify the azimuth. (for
example "define_loudspeakers 2 -45 45 0 180";
#X text 417 17 VBAP and define_loudspeakers;
#X text 22 166 2 For vbap \, give azimuth and elevation for the desired
location. Bang the first inlet and vbap will output gain-factors for
each speaker and the actual location produced. This can be different
from the desired one depending where your speakers are.;
#X text 418 46 loudspeaker position definition can also be sent directly
to a vbap object. This changes the setup information only in a single
vbap object.;
#X text 419 94 For an example of how to use vbap with [matrix~] from
zexy-library \, see vbap-demo.pd.;
#X text 21 22 1 Use the define_loudspeakers object or message to list
the speaker positions. The example here defines loudspeakers in three
dimensions (the first parameter). For each speaker \, define its azimuth
and elevation. Here we have speakers front left and right with no elevation
(-45 0 45 0) and front and back with 45 degrees of elevation (0 45
180 45). Send the data to vbap.;
#N canvas 283 22 628 620 simple 0;
#X floatatom 159 198 5 0 0 2 - - -;
#X floatatom 112 425 10 0 0 0 - - -;
#X floatatom 181 425 10 0 0 0 - - -;
#X floatatom 209 349 0 0 0 3 actual_azimuth - -;
#X floatatom 221 315 0 0 0 3 actual_elevation - -;
#X floatatom 231 294 7 0 0 1 actual_spreading - -;
#X obj 162 182 hsl 100 13 -180 180 0 1 empty empty azimuth 10 7 0 10
-262144 -1 -1 1500 1;
#X floatatom 237 237 5 0 0 2 - - -;
#X obj 240 220 hsl 100 13 0 100 0 1 empty empty spread 10 7 0 10 -262144
-1 -1 700 1;
#X text 130 134 to output updated values;
#X obj 112 155 metro 100;
#X obj 112 133 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
1;
#X text 197 200 (ignore elevation in 2D \, that's for 3D);
#X obj 63 524 *~;
#X obj 92 525 *~;
#X msg 454 145 dsp 1;
#X obj 454 169 send pd;
#X floatatom 250 425 10 0 0 0 - - -;
#X floatatom 319 425 10 0 0 0 - - -;
#X obj 123 524 *~;
#X obj 152 525 *~;
#X msg 17 48 define_loudspeakers 2 -135 -45 0 45 135;
#X text 263 37 Define 2D speaker arrangement with speakers at -135
\, -45 \, 0 \, 45 and 135 degree positions (0 degrees is the center
front). This is a classic 5.1 setup.;
#X floatatom 389 425 10 0 0 0 - - -;
#X obj 72 558 dac~ 1 2 3 4 5;
#X obj 182 525 *~;
#X obj 112 267 vbap 0 0 30;
#X obj 112 376 route 0 1 2 3 4;
#X obj 13 396 *~ 0.2;
#X obj 13 374 noise~;
#X connect 1 0 13 1;
#X connect 2 0 14 1;
#X connect 6 0 0 0;
#X connect 8 0 7 0;
#X connect 10 0 26 0;
#X connect 11 0 10 0;
#X connect 13 0 24 0;
#X connect 14 0 24 1;
#X connect 15 0 16 0;
#X connect 17 0 19 1;
#X connect 18 0 20 1;
#X connect 19 0 24 2;
#X connect 20 0 24 3;
#X connect 21 0 26 0;
#X connect 23 0 25 1;
#X connect 25 0 24 4;
#X connect 26 0 27 0;
#X connect 27 0 1 0;
#X connect 27 1 2 0;
#X connect 27 2 17 0;
#X connect 27 3 18 0;
#X connect 27 4 23 0;
#X connect 28 0 13 0;
#X connect 28 0 14 0;
#X connect 28 0 19 0;
#X connect 28 0 20 0;
#X connect 28 0 25 0;
#X connect 29 0 28 0;
#X restore 421 139 pd simple 5.1 example;
#X obj 421 277 vbap/vbap 90 0 30;
#X obj 100 371 testtools/unit-test-frame;
#X msg 100 342 vbap;
#X floatatom 454 342 5 0 0 0 - - -;
#X floatatom 487 322 5 0 0 0 - - -;
#X floatatom 520 300 5 0 0 0 - - -;
#X text 22 244 The spread-parameter can be used to prevent a situation
where sound is coming from one speaker only \, which would make speaker
positions "visible". The range is 0 to 100;
#X text 496 344 azimuth;
#X text 524 324 elevation;
#X text 556 300 spread;
#X obj 100 315 loadbang;
#N canvas 0 22 504 332 define-loudspeakers 0;
#X msg 51 87 define_loudspeakers 2 -135 -45 0 45 135;
#X msg 106 121 define_loudspeakers 3 -45 0 45 0 0 45 180 45;
#X obj 51 21 inlet;
#X obj 51 284 outlet;
#X obj 188 283 outlet;
#X obj 106 148 t b a;
#X obj 51 112 t b a;
#X obj 51 53 t b b b b;
#X obj 161 199 t b a;
#X obj 208 245 t b a;
#X msg 161 172 define_loudspeakers 3 -30 0 30 0 0 45 180 45;
#X msg 207 217 define_loudspeakers 3 -45 0 45 0 0 30 180 30;
#X connect 0 0 6 0;
#X connect 1 0 5 0;
#X connect 2 0 7 0;
#X connect 5 0 3 0;
#X connect 5 1 4 0;
#X connect 6 0 3 0;
#X connect 6 1 4 0;
#X connect 7 0 0 0;
#X connect 7 1 1 0;
#X connect 7 2 10 0;
#X connect 7 3 11 0;
#X connect 8 0 3 0;
#X connect 8 1 4 0;
#X connect 9 0 3 0;
#X connect 9 1 4 0;
#X connect 10 0 8 0;
#X connect 11 0 9 0;
#X restore 421 237 pd define-loudspeakers;
#X obj 421 208 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144
-1 -1;
#X connect 7 0 8 1;
#X connect 7 1 10 0;
#X connect 7 2 11 0;
#X connect 7 3 12 0;
#X connect 8 3 19 0;
#X connect 9 0 8 0;
#X connect 17 0 9 0;
#X connect 18 0 7 0;
#X connect 18 1 7 0;
#X connect 19 0 18 0;
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