From e5a3c99d0f46d825a5550e88a0906f900e31be52 Mon Sep 17 00:00:00 2001 From: musil Date: Thu, 9 Mar 2006 17:05:43 +0000 Subject: initial version JAN_06 with all sources svn path=/trunk/externals/iem/iem_ambi/; revision=4668 --- help/help-ambi_decode2.pd | 97 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 help/help-ambi_decode2.pd (limited to 'help/help-ambi_decode2.pd') diff --git a/help/help-ambi_decode2.pd b/help/help-ambi_decode2.pd new file mode 100644 index 0000000..c1c998b --- /dev/null +++ b/help/help-ambi_decode2.pd @@ -0,0 +1,97 @@ +#N canvas 82 3 844 643 10; +#X obj 38 441 print; +#X text 454 156 1.arg: ambisonic order; +#X obj 38 418 round_zero 1e-006; +#X text 297 312 ambisonic-order = n_ao; +#X text 485 387 ambisonic-order-group; +#X text 273 428 -90 <= delta <= +90; +#X text 273 440 -180 <= phi <= +180; +#X text 214 387 input: one mul-factor for each; +#X text 21 12 ambi_decode; +#X text 105 12 calculates a decoder-matrix; +#X obj 38 33 bng 35 250 50 0 empty empty empty 0 -6 0 8 -24198 -42246 +-1; +#X text 214 336 input: index + phi [degree] .. 2-dimensional; +#X text 214 346 input: index + delta + phi [degree] .. 3-dimensional +; +#X text 214 360 input: index + phi [degree .. 2-dimensional +; +#X text 214 371 input: index + delta + phi [degree] .. 3-dimensional +; +#X text 238 518 n_col = (2*n_ao+1) = number of ambisonic-channels +; +#X text 226 527 + n_row = (n_ls) = number of loudspeakers; +#X text 466 313 number of loudspeakers = n_ls; +#X text 229 587 + n_row = (n_ls) = number of loudspeakers; +#X text 214 568 output in case of 3d: ((n_ao+1)*(n_ao+1)*n_ls+2) +; +#X text 212 507 output in case of 2d: ((2*n_ao+1)*n_ls+2) +; +#X text 559 568 :; +#X text 516 506 :; +#X text 456 578 number of ambisonic-channels; +#X text 241 578 n_col = (n_ao+1)*(n_ao+1) =; +#X text 427 597 elements of a matrix; +#X text 229 597 + (n_ao + 1) * (n_ao + 1) * n_ls; +#X text 226 537 + (2*n_ao + 1) * n_ls elements of a matrix +; +#X text 207 460 input: calculates the pseudo-inverse of the +encoded; +#X text 263 471 loudspeaker-positions (+ the phantom-speakers); +#X text 277 482 and output a matrix-message; +#X text 288 417 1 <= index <= n_ao; +#X text 544 268 a regular matrix to inverse it); +#X text 375 399 to suppress the side-lobe-phenomena; +#X text 467 258 (it is sometimes necessary to add phantom-ls. for achieving +; +#X msg 38 372 pseudo_inverse; +#X msg 234 128 ambi_weight 1 1 1 0.3904; +#X msg 108 129 ambi_weight 1 1 1 1; +#X msg 123 104 mirror_weight 0.7; +#X obj 94 178 pp ind_ls; +#X msg 94 155 1 90 0 \, 2 45 45 \, 3 45 135 \, 4 45 225 \, 5 45 315 +; +#X obj 38 396 ambi_decode2 3 3 5 8 1; +#X obj 80 243 pp mrg_ls; +#X msg 80 208 1 0 0 \, 2 0 45 \, 3 0 90 \, 4 0 135 \, 5 0 180 \, 6 +0 225 \, 7 0 270 \, 8 0 315; +#X obj 66 300 pp mir_ls; +#X msg 66 265 1 -45 0 \, 2 -45 45 \, 3 -45 90 \, 4 -45 135 \, 5 -45 +180 \, 6 -45 225 \, 7 -45 270 \, 8 -45 315; +#X obj 52 346 pp pht_ls; +#X msg 52 323 1 -90 0; +#X obj 38 77 t b b b b b b b; +#X text 469 174 (1 .. 5 in case of 3 dimensional); +#X text 469 165 (1 .. 12 in case of 2 dimensional); +#X text 455 196 3.arg: number of independent loudspeakers; +#X text 454 184 2.arg: dimension (2 or 3); +#X text 454 247 5.arg: number of canceled phantom_loudspeakers +; +#X text 455 208 4.arg: number of merged and mirrored loudspeakers +; +#X text 501 221 (the merged loudspeakers are at the border of the arc +; +#X text 514 233 or the hemisphere \, the mirrored loudspeakers are +; +#X connect 2 0 0 0; +#X connect 10 0 48 0; +#X connect 35 0 41 0; +#X connect 36 0 41 0; +#X connect 37 0 41 0; +#X connect 38 0 41 0; +#X connect 39 0 41 0; +#X connect 40 0 39 0; +#X connect 41 0 2 0; +#X connect 42 0 41 0; +#X connect 43 0 42 0; +#X connect 44 0 41 0; +#X connect 45 0 44 0; +#X connect 46 0 41 0; +#X connect 47 0 46 0; +#X connect 48 0 35 0; +#X connect 48 1 47 0; +#X connect 48 2 45 0; +#X connect 48 3 43 0; +#X connect 48 4 40 0; +#X connect 48 5 37 0; +#X connect 48 6 38 0; -- cgit v1.2.1