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+#N canvas 402 99 566 329 12;
+#X obj 70 228 env~;
+#X floatatom 70 248;
+#X floatatom 107 178;
+#X obj 70 206 hip~ 5;
+#X text 119 201 The high pass filter is initialized to cutoff frequencies below 5 Hz.;
+#X obj 12 226 env~;
+#X floatatom 12 245;
+#X text 108 227 env~ gives the amplitude of the signal envelop in dB.;
+#X floatatom 12 107;
+#X msg 452 24 \; pd dsp 1;
+#X msg 452 58 \; pd dsp 0;
+#X obj 83 6 lop~;
+#X text 9 68 The left inlet is the incoming audio signal. The right inlet is the cutoff frequency in Hz.;
+#X obj 12 130 osc~ 100;
+#X text 57 105 <-- scroll to change input frequency;
+#X text 12 266 Compare the value of the original signal on the left with the value of the filtered signal on the right.;
+#X text 8 35 lop~ is a one-pole low pass filter with a specified rolloff frequency.;
+#X text 114 7 - one-pole low pass filter;
+#X msg 70 154 clear;
+#X text 114 153 <-- reinitialize internal state;
+#X text 139 179 <-- set cutoff frequency;
+#X text 364 306 updated for Pd version-0.30;
+#X connect 0 0 1 0;
+#X connect 2 0 3 1;
+#X connect 3 0 0 0;
+#X connect 5 0 6 0;
+#X connect 8 0 13 0;
+#X connect 13 0 5 0;
+#X connect 13 0 3 0;
+#X connect 18 0 3 0;