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+#N canvas 91 360 949 493 10;
+#X obj 112 257 vbap 0 0;
+#X obj 134 319 print;
+#X obj 62 113 define_loudspeakers 3 -45 0 45 0 0 45 180 45;
+#X msg 62 87 bang;
+#X text 442 79 1 Use define_loudspeakers 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.;
+#X floatatom 129 223 5 0 0;
+#X floatatom 173 223 5 0 0;
+#X floatatom 217 223 5 0 0;
+#X msg 112 179 bang;
+#X obj 112 356 route 0 1 2 3;
+#X floatatom 112 415 10 0 0;
+#X floatatom 191 415 10 0 0;
+#X floatatom 270 415 10 0 0;
+#X floatatom 349 415 10 0 0;
+#X text 442 169 In two dimensions \, only specify the azimuth. (for
+example "define_loudspeakers 2 -45 45 0 180";
+#X text 151 201 azimuth \, elevation and spread;
+#X text 444 352 For an example of how to use vbap with matrix~ from
+zexy-library \, see vbap-demo.pd.;
+#X text 63 21 VBAP and define_loudspeakers;
+#X text 444 300 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 floatatom 152 286 5 0 0;
+#X floatatom 196 286 5 0 0;
+#X floatatom 240 286 5 0 0;
+#X text 178 306 actual location;
+#X text 444 222 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 connect 0 0 1 0;
+#X connect 0 0 9 0;
+#X connect 0 1 19 0;
+#X connect 0 2 20 0;
+#X connect 0 3 21 0;
+#X connect 2 0 0 0;
+#X connect 3 0 2 0;
+#X connect 5 0 0 1;
+#X connect 6 0 0 2;
+#X connect 7 0 0 3;
+#X connect 8 0 0 0;
+#X connect 9 0 10 0;
+#X connect 9 1 11 0;
+#X connect 9 2 12 0;
+#X connect 9 3 13 0;