Hi Julian, Thank you for your report. I am not the expert, just one of the current maintainers if the cyclone set of objects. I think the object works, but maybe not as the Max object. If this is the case I will try to fix it.
> Hello, > > I am sorry to bother you but I have an important question about the > buffir~ object. > I hope you can help me with this. I am not too experiencd with PD but I > try to make > an Binaural-Renderer. I want to use the buffir~ object to convolve an IR > to a signal. > This works right now. But I want to change the IR used for convolving > with the signal > when the head orientation changes. I had a look at the MAX/MSP 5 > documentation > as I understand this object was taken from MAX where the buffir~ object > can be told > to change the buffer~ object by using the set message. I tried this in > PD but nothing > happens. Obviously the IR is not loaded as there is no signal passing > through the > buffir~ object when using $1 as the name of the table and send a message > [set tablename] > to input 1 (the signal input where the clear message can be applied). Is > this function > not implemented in the PD buffir~ object? Or is there something I do wrong? Note '$1' is not literary part of the name, just a placeholder of the first element on the message (=list) you send to the object. If something is wrong here, the console should contain an error message. Also see the help on $-variables. > > I would be verry happy if could help me with this question! If this is > not implemented > and can't be worked around do you have any ideas how to solve my problem? > Thank you very much in advance! The attached patch is an adaptation of the help-patch, including a second buffer to switch to. Yo need to open it and draw non-zero values to get a signal through. It looks like you also have to provide the offset and length arguments, as leaving them out results in zero - meaning no useful convolution takes place. When I have time, I'll check the behaviour of the Max5 object. It might work better or more user friendly. But first on the planning are some weeks vacation :-). > > Regards Julian Jochheim > Greetings, Fred Jan P.S. I added the pd-list in the reply, the main forum for issues like this one (http://lists.puredata.info/listinfo/pd-list).
#N canvas 572 79 572 530 10; #X obj 0 594 cnv 15 552 21 empty empty empty 20 12 0 14 -233017 -33289 0; #X obj 0 336 cnv 3 550 3 empty empty inlets 8 12 0 13 -228856 -1 0 ; #N canvas 388 382 433 268 META 0; #X text 0 31 LICENSE SIBSD; #X text 0 139 LIBRARY cyclone; #X text 0 49 DESCRIPTION converts all signal values to positive values ; #X text 0 0 KEYWORDS signal buffer buffir buff FIR finite impulse response convolution filter; #X text 0 67 INLET_0 signal; #X text 0 85 INLET_1 float; #X text 0 103 INLET_2 float; #X text 0 121 OUTLET_0 signal; #X text 0 158 VERSION 0.1-alpha57; #X text 0 176 AUTHOR Krzysztof Czaja; #X text 1 194 RELEASE_DATE 2002; #X text 2 213 WEBSITE http://suita.chopin.edu.pl/~czaja/miXed/externs/cyclone.html ; #X text 2 245 HELP_PATCH_AUTHORS Christoph Kummerer. Revised by Jonathan Wilkes for Pd-extended 0.42 to conform to the PDDP template. Alex Cleveland updated this patch for Pd-l2ork version 2013.05.28. Fred Jan Kraan adapted the patch to pd-extended 2015-02-02; #X restore 503 597 pd META; #X obj 0 419 cnv 3 550 3 empty empty outlets 8 12 0 13 -228856 -1 0 ; #X obj 0 456 cnv 3 550 3 empty empty arguments 8 12 0 13 -228856 -1 0; #X obj 0 532 cnv 3 550 3 empty empty more_info 8 12 0 13 -228856 -1 0; #N canvas 160 549 428 109 Related_objects 0; #X obj 0 0 cnv 15 425 20 empty empty empty 3 12 0 14 -204280 -1 0; #X text 6 1 Related Objects; #X restore 203 597 pd Related_objects; #X obj 80 368 cnv 17 3 17 empty empty 1 5 9 0 16 -228856 -162280 0 ; #X obj 0 0 cnv 15 554 40 empty empty buffir~ 3 12 0 18 -204280 -1 0 ; #X text 106 344 signal; #X text 164 343 - signal to pass to FIR; #X text 106 427 signal; #X obj 80 389 cnv 17 3 17 empty empty 2 5 9 0 16 -228856 -162280 0 ; #X text 106 369 float; #X obj 80 428 cnv 17 3 17 empty empty 0 5 9 0 16 -228856 -162280 0 ; #X text 106 391 float; #X text 164 391 - Length (samples); #X text 164 367 - Offset (samples); #X text 164 426 - based on buffer \, offset \, length; #X obj 378 147 loadbang; #X obj 378 174 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 -1; #N canvas 460 222 405 395 genRamp 0; #X obj 84 238 sel 0 1; #X obj 103 286 i; #X obj 84 183 sel 1; #X msg 32 136 clear; #X obj 184 242 * 1; #X obj 184 216 expr ((127. - $f1) / 127.); #X obj 171 183 - 1; #X obj 84 82 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 -1; #X obj 84 314 pack 0 0; #X text 182 197 exponential ramp down from 1 to 0; #X obj 84 60 inlet; #X obj 84 348 outlet; #X obj 84 215 cyclone/decide; #X text 178 339 makes 50% zeros \, 25% exponential; #X text 178 353 downward ramp \, 25% random; #X obj 84 160 cyclone/decide; #X obj 2 0 cnv 15 425 20 empty empty empty 3 12 0 14 -204280 -1 0; #X obj 84 136 cyclone/Uzi 128; #X text 9 0 ramp generator; #X obj 84 104 t b b; #X obj 84 260 cyclone/urn 128; #X connect 0 0 20 0; #X connect 0 1 1 0; #X connect 1 0 8 0; #X connect 2 0 12 0; #X connect 3 0 20 0; #X connect 4 0 8 1; #X connect 5 0 4 0; #X connect 5 0 4 1; #X connect 6 0 1 1; #X connect 6 0 5 0; #X connect 7 0 19 0; #X connect 8 0 11 0; #X connect 10 0 7 0; #X connect 12 0 0 0; #X connect 15 0 2 0; #X connect 17 0 15 0; #X connect 17 2 6 0; #X connect 19 0 17 0; #X connect 19 1 3 0; #X connect 20 0 8 0; #X restore 378 199 pd genRamp; #X floatatom 265 111 0 0 0 0 - - -; #X obj 80 78 noise~; #X obj 82 234 *~ 0.05; #X text 87 472 1) table; #X text 164 471 - buffer (max size 256); #X text 88 489 2) float; #X text 164 489 - offset; #X text 88 506 3) float; #X text 164 506 - length; #X text 103 542 buffir~ is a table based FIR (finite impulse response) filter. an input signal is convolved with n samples of a buffer. Currently the maximum number of points is 256; #X obj 499 2 buffir~; #X text 12 23 table based FIR (finite impulse response) convolution filter; #X obj 80 347 cnv 17 3 17 empty empty 0 5 9 0 16 -228856 -162280 0 ; #X text 402 174 Generate new fir; #X text 292 102 number of samples; #X text 292 114 in impulse; #X text 323 274 table is a 128-point downwards; #X text 322 288 ramp with random values here and; #X text 322 301 there with amplitude from 1 to 0; #X obj 82 260 output~; #X obj 268 90 hsl 128 15 0 127 0 0 empty empty empty -2 -8 0 10 -262144 -1 -1 7300 1; #N canvas 595 601 430 354 voice 0; #X obj 96 145 openpanel; #X obj 96 219 soundfiler; #X obj 96 96 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1 -1; #X obj 74 27 loadbang; #X obj 263 236 *~ 0; #X obj 263 297 outlet~; #X obj 263 185 phasor~ 0.77; #X obj 0 0 cnv 15 425 20 empty empty empty 3 12 0 14 -204280 -1 0; #X text 4 2 Load and play the standard voice.wav file; #X obj 96 170 pack s f; #X obj 96 119 t b b; #X obj 168 145 f \$0; #X text 115 100 load an other sample; #X msg 96 194 read -resize \$1 \$2-voice; #X obj 263 266 tabread~ \$0-voice; #X obj 95 243 table \$0-voice; #X msg 74 74 read -resize voice.wav \$1-voice; #X obj 74 50 f \$0; #X connect 0 0 9 0; #X connect 1 0 4 1; #X connect 2 0 10 0; #X connect 3 0 17 0; #X connect 4 0 14 0; #X connect 6 0 4 0; #X connect 9 0 13 0; #X connect 10 0 0 0; #X connect 10 1 11 0; #X connect 11 0 9 1; #X connect 13 0 1 0; #X connect 14 0 5 0; #X connect 16 0 1 0; #X connect 17 0 16 0; #X restore 96 97 pd voice; #N canvas 753 492 431 300 mux 0; #X obj 127 68 inlet~; #X obj 176 68 inlet~; #X obj 230 69 inlet; #X obj 127 231 outlet~; #X obj 126 182 *~ 1; #X obj 177 183 *~ 0; #X obj 230 109 == 0; #X floatatom 246 158 5 0 0 0 - - -, f 5; #X obj 0 1 cnv 15 425 20 empty empty empty 3 12 0 14 -204280 -1 0; #X text 4 3 signal selector; #X connect 0 0 4 0; #X connect 1 0 5 0; #X connect 2 0 5 1; #X connect 2 0 6 0; #X connect 4 0 3 0; #X connect 5 0 3 0; #X connect 6 0 4 1; #X connect 6 0 7 0; #X restore 81 128 pd mux; #X obj 154 83 vradio 15 1 0 2 empty empty empty 0 -8 0 10 -262144 -1 -1 1; #X text 77 56 Integral of buffer from offset to offset + length; #N canvas 164 658 431 249 more 0; #X obj 75 83 sig~ 1; #X text 271 85 Length (samps); #X msg 64 56 clear; #X floatatom 247 85 0 0 0 0 - - -; #X floatatom 155 63 0 0 0 0 - - -; #X text 56 38 clears input history only; #X text 181 62 Offset (samps); #X obj 64 221 nbx 5 14 -1e+37 1e+37 0 0 empty empty empty 0 -8 0 10 -262144 -1 -1 8.96559 256; #X text 263 138 Initial args:; #X text 263 150 buffer \, offset(samps) \,; #X text 263 162 length(samps); #X obj 64 197 cyclone/Snapshot~ 100; #X obj 2 2 cnv 15 425 20 empty empty empty 3 12 0 14 -204280 -1 0; #X text 6 4 Example using variable offset; #X obj 64 150 cyclone/buffir~ \$0-fir_buf 0 32; #X connect 0 0 14 0; #X connect 2 0 14 0; #X connect 3 0 14 2; #X connect 4 0 14 1; #X connect 11 0 7 0; #X connect 14 0 11 0; #X restore 447 88 pd more buffir; #X obj 378 226 cyclone/peek~ \$0-fir_buf; #X obj 377 248 table \$0-fir_buf 128; #X obj 241 246 table \$0-anotherTable; #X obj 171 284 f \$0; #X obj 171 257 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 -1; #X obj 17 283 f \$0; #X obj 17 256 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 -1; #X obj 82 182 cyclone/buffir~ \$0-fir_buf 0 128; #X msg 17 309 set \$1-fir_buf 0 128; #X msg 171 310 set \$1-anotherTable 0 128; #X connect 19 0 20 0; #X connect 20 0 21 0; #X connect 21 0 48 0; #X connect 22 0 55 2; #X connect 23 0 44 0; #X connect 24 0 41 0; #X connect 24 0 41 1; #X connect 42 0 22 0; #X connect 43 0 44 1; #X connect 44 0 55 0; #X connect 45 0 44 2; #X connect 51 0 57 0; #X connect 52 0 51 0; #X connect 53 0 56 0; #X connect 54 0 53 0; #X connect 55 0 24 0; #X connect 56 0 55 0; #X connect 57 0 55 0;
_______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
