path: root/reference/limiter~-help.pd

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#X text 189 15 limiter;
#X text 187 25 ========;
#X msg 398 249 print;
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#X obj 476 266 limiter~ 50 1;
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#X text 30 299 to learn more about this object \, try these;
#X text 48 371 http://iem.kug.ac.at/~zmoelnig;
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#X text 37 99 it is quite important to delay the original signals before
the limiter-amplification is applied to prevent clicks !!!;
#X text 52 353 1906:forum::für::umläute:2001;
#X text 585 170 level of the inlets;
#X text 511 148 (give some 190dB and notice no clipping);
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#X text 539 17 part of zexy;
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#X msg 520 354 MUTE;
#X text 532 300 just a small delay of 64 samples;
#X text 531 44 updated for zexy-2.0;
#X text 37 132 this is because the limiter algorithm needs some time
(e.g. the outgoing signal is delayed by some samples) \; directly multiplying
would therefore be a bit too late \, in case a spike appears. Adding
a small delay takes care of this psychoacoustically (you won't hear
the click);
#N canvas 603 395 494 344 META 0;
#X text 12 155 HELP_PATCH_AUTHORS "pd meta" information added by Jonathan
Wilkes for Pd version 0.42.;
#X text 12 25 LICENSE GPL v2;
#X text 12 135 AUTHOR IOhannes m zmoelnig;
#X text 12 45 DESCRIPTION limiter;
#X text 12 5 KEYWORDS signal filter analysis;
#X text 12 65 INLET_0 signal print mode LIMIT CRACK COMPRESS help limit
set limits set2 treshold compress;
#X text 12 95 INLET_N signal;
#X text 12 115 OUTLET_0 signal;
#X restore 711 417 pd META;
#X text 36 41 limiter will output the amplification-factor that has
to be applied on all inlet~s to get a beautiful limited multichannel-signal
that preserves the balance between the channels;
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#X text 81 189 MODE 0 : 1-treshold-limiter;
#X text 79 384 MODE 1 : 2-tresholds-limiter;
#X msg 502 255 print;
#X obj 456 316 limiter~;
#X obj 479 141 limiter~;
#X msg 543 123 help;
#X msg 542 104 print;
#X msg 479 32 mode 0;
#X msg 542 31 LIMIT;
#X msg 479 50 mode 1;
#X msg 542 49 CRACK;
#X msg 479 67 mode 2;
#X msg 542 66 COMPRESS;
#X text 612 48 crack limiter (2 tresholds);
#X text 612 66 compressor (1 treshold);
#X text 621 102 context status;
#X text 522 30 ==;
#X text 521 49 ==;
#X text 520 68 ==;
#X msg 517 302 LIMIT;
#X obj 517 286 loadbang;
#X text 611 30 normal limiter (1 treshold) [default];
#X msg 501 459 print;
#X obj 453 522 limiter~;
#X obj 514 492 loadbang;
#X msg 514 508 CRACK;
#X msg 487 716 print;
#X obj 500 760 loadbang;
#X text 85 590 MODE 2 : compressor;
#X msg 500 776 COMPRESS;
#X msg 492 629 ratio 0.5;
#X text 599 628 set compress-ratio (0.5 == 1:2);
#X text 599 605 set the treshold \, where the compressor should start
to compress;
#X text 622 677 set the compressor (limit/treshold/ratio);
#X text 601 655 set limit/holdtime/releasetime at once;
#X text 603 717 view actual settings;
#X text 607 459 view actual settings;
#X msg 504 188 limit 90;
#X msg 504 211 set 105 40 150;
#X msg 502 404 set 105 40 150;
#X msg 505 426 set2 120 1 10;
#X msg 491 654 set 110 40 150;
#X msg 491 611 treshold 10;
#X msg 490 677 compress 96 88 0.5;
#X text 598 591 set the output-limit;
#X msg 491 593 limit 98;
#X text 608 254 view actual settings;
#X text 609 212 set limit/holdtime/releasetime at once;
#X text 609 185 set output limit;
#X obj 439 790 limiter~;
#X text 605 404 set limiter1 (output-limit/hold-time/release-time)
;
#X text 10 621 the output signal will never become louder than the
specified output-limit.;
#X text 10 653 if the input-signal becomes loader than the input-treshold
\, a compressor will start working \, compressing the dynamic range
by the specified ratio. Signals lesser than the treshold will pass
through uncompressed.;
#X text 39 59 set the limiter~ to one of the 3 modes;
#X text 604 380 set both limits;
#X text 11 210 this is simple : the output will not become bigger than
the specified limit. When the input becomes small enough again so that
this condition is matched even without (positive) amplification (this
is \, when the input signal level falls below the limit) \, the amplification
will increase gradually (depending on hold- & release-time) towards
1;
#X text 604 427 set limiter2 (input-treshold/hold-time/release-time)
;
#X msg 502 381 limits 100 108;
#X text 10 414 this limiter can be used to handle disgusting things
like cracks \, which are much louder than the "normal" musical signal.
Typically hold- and release-times for the second limiter are far smaller
than those for the first \, to ensure that the disturbance will pass
quite fast (since the crack would disturb the sensation anyhow \, we
do not care much about the distortion caused by a fast limiter). The
treshold for the 2nd limiter must be greater than the ouput-limit (if
not \, the limiter will be reset to MODE 0);
#X text 13 298 all levels (limts/tresholds) should be given in dB to
produce satisfying results (following pd's agreement on the deziBel-scale
\, 100dB are equal to 1 \, 0dB equals 0 \, ...);
#X text 624 123 context(!) help;
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#X text 211 152 creates a default limiter (MONO \, 9-samples-buffer)
;
#X text 213 189 creates a limiter(MONO \, 10ms-buffer);
#X text 213 223 creates a limiter (multichannel \, 9-samples-buffer)
;
#X text 216 256 creates a limiter (multichannel \, 1ms-buffer !!);
#X text 82 17 "limiter [<bufsize>] [<in1> [<in2> [...]]]";
#X text 148 70 creating inlets depends ONLY on the number of arguments
\, not on the arguments themselves... !;
#X text 218 313 creates a limiter (multichannel \, 9-samples-buffer)
;
#X text 113 187 ______________;
#X text 89 150 _________________;
#X text 145 220 _________;
#X text 114 254 ______________;
#X text 199 311 __;
#X obj 23 151 limiter~;
#X obj 23 185 limiter~ 10;
#X obj 22 219 limiter~ 0 1 2 3;
#X obj 22 253 limiter~ 1 2;
#X obj 18 310 limiter~ We need 4 inlets;
#X restore 39 322 pd creation;
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