1 files changed, 212 insertions, 0 deletions
diff --git a/doc/tutorials/playnow/filter.sweep.pd b/doc/tutorials/playnow/filter.sweep.pd
new file mode 100644
index 00000000..28bb76ce
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+++ b/doc/tutorials/playnow/filter.sweep.pd
@@ -0,0 +1,212 @@
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+#X text 35 6 SWEEPING FILTERS;
+#X text 13 28 If you want actively changing center frequencies \, use
+"vcf~" instead of "bp~". The vcf~ module takes an audio signal to set
+center frequency. (Q is still set by messages though.) Vcf is somewhat
+more expensive than bp~.;
+#X text 13 95 Note the effect of negative and positive sweep speed.
+;
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+#X msg 96 65 set \$1;
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+#X text 93 110 show level;
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+#X text 212 437 <-- output amplitude;
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+#X text 234 389 <-- Q (selectivity);
+#X text 125 176 sawtooth;
+#X text 124 190 oscillator;
+#X text 302 66 <-- sweep speed;
+#X text 339 88 LFO for sweep;
+#X text 325 140 <-- sweep depth;
+#X text 311 214 <-- base center frequency;
+#X text 292 282 add base to sweep;
+#X text 376 306 convert to Hz.;
+#X text 152 64 <-- pitch;
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+#X text 58 492 (C) Copyright 2004 Hans-Christoph Steiner <hans@at.or.at>
+;
+#X text 367 509 released under the GNU GPL;
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