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+#N canvas 37 0 825 630 12;
+#X obj 132 166 metro 500;
+#X msg 91 217 0.5;
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+#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.;
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