From 4d84d14ac1aa13958eaa2971b03f7f929a519105 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?= Date: Fri, 8 Feb 2008 13:00:32 +0000 Subject: reorganized svn path=/trunk/; revision=9400 --- desiredata/doc/7.stuff/tools/latency.pd | 99 +++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 desiredata/doc/7.stuff/tools/latency.pd (limited to 'desiredata/doc/7.stuff/tools/latency.pd') diff --git a/desiredata/doc/7.stuff/tools/latency.pd b/desiredata/doc/7.stuff/tools/latency.pd new file mode 100644 index 00000000..bedb0ea1 --- /dev/null +++ b/desiredata/doc/7.stuff/tools/latency.pd @@ -0,0 +1,99 @@ +#N canvas 37 0 825 630 12; +#X obj 132 166 metro 500; +#X msg 91 217 0.5; +#X obj 130 192 del 3; +#X msg 130 217 0; +#X obj 34 323 dac~; +#X obj 286 216 adc~; +#X obj 291 310 timer; +#X obj 93 333 env~ 65536; +#X floatatom 93 360 4 0 0 0 - - -; +#X floatatom 339 170 4 0 0 0 - - -; +#X obj 339 193 + 100; +#X obj 339 218 dbtorms; +#X obj 181 333 env~ 65536; +#X floatatom 181 362 4 0 0 0 - - -; +#X floatatom 291 347 4 0 0 0 - - -; +#X obj 312 245 *~ 1; +#X obj 348 278 threshold~ 0.1 5 0.05 5; +#X obj 634 160 bonk~; +#X obj 634 188 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1 +-1; +#X obj 508 188 osc~ 440; +#X obj 530 214 *~ 0; +#X obj 582 189 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 +1; +#X obj 571 211 * 0.1; +#X obj 79 25 vdl 15 1 0 3 empty empty empty 0 -6 0 8 -262144 -1 -1 +0; +#X msg 17 138 \; pd dsp 1; +#X obj 634 132 *~; +#X obj 16 113 sel 0; +#X text 100 20 off; +#X obj 132 142 == 1; +#X obj 80 78 t f; +#X text 102 36 measure latency; +#X text 100 53 test continuity; +#X obj 582 97 == 2; +#X text 90 379 level out; +#X text 182 380 level in; +#X obj 530 244 dac~; +#X text 292 368 latency in; +#X text 293 384 msec; +#X text 656 188 this flashes when; +#X text 656 207 a discontinuity is; +#X text 657 226 detected; +#X obj 642 105 adc~; +#X text 328 131 you can; +#X text 324 147 adjust gain here; +#X text 538 66 --- continuity check ---; +#X text 169 105 --- latency measurement ---; +#X text 67 420 To use this patch \, connect your audio output back +to the audio input (channel 1 should suffice.) The latency measurement +assumes the feedback gain is at least about -14 dB - you can increase +the input sensitivity if need be.; +#X text 70 491 If you select "measure latency" a series of pulses are +timed using the "threshold~" object - note that it has an uncertainty +of 1.45 msec (at 44K1) \, so you might see the number jitter even if +the latency is constant.; +#X text 70 564 Select "test continuity' to see if there are interruptions +in the sound \, either at the input or output stage. If there are \, +the button will flash.; +#X obj 94 243 vline~; +#X obj 133 279 threshold~ 0.1 5 0.05 5; +#X connect 0 0 1 0; +#X connect 0 0 2 0; +#X connect 1 0 49 0; +#X connect 2 0 3 0; +#X connect 3 0 49 0; +#X connect 5 0 15 0; +#X connect 6 0 14 0; +#X connect 7 0 8 0; +#X connect 9 0 10 0; +#X connect 10 0 11 0; +#X connect 11 0 15 1; +#X connect 12 0 13 0; +#X connect 15 0 12 0; +#X connect 15 0 16 0; +#X connect 16 0 6 1; +#X connect 17 0 18 0; +#X connect 19 0 20 0; +#X connect 20 0 35 0; +#X connect 20 0 35 1; +#X connect 21 0 22 0; +#X connect 22 0 20 1; +#X connect 23 0 29 0; +#X connect 25 0 17 0; +#X connect 26 1 24 0; +#X connect 28 0 0 0; +#X connect 29 0 26 0; +#X connect 29 0 28 0; +#X connect 29 0 32 0; +#X connect 32 0 21 0; +#X connect 32 0 25 1; +#X connect 41 0 25 0; +#X connect 49 0 7 0; +#X connect 49 0 4 0; +#X connect 49 0 4 1; +#X connect 49 0 50 0; +#X connect 50 0 6 0; -- cgit v1.2.1