From 8dbec761cf858ea65900c8a094599857208d8c3a Mon Sep 17 00:00:00 2001 From: "N.N." Date: Tue, 5 Jan 2010 22:49:36 +0000 Subject: svn path=/trunk/; revision=12907 --- .../doc/3.audio.examples/E04.difference.tone.pd | 45 ---------------------- 1 file changed, 45 deletions(-) delete mode 100644 desiredata/doc/3.audio.examples/E04.difference.tone.pd (limited to 'desiredata/doc/3.audio.examples/E04.difference.tone.pd') diff --git a/desiredata/doc/3.audio.examples/E04.difference.tone.pd b/desiredata/doc/3.audio.examples/E04.difference.tone.pd deleted file mode 100644 index 7272222b..00000000 --- a/desiredata/doc/3.audio.examples/E04.difference.tone.pd +++ /dev/null @@ -1,45 +0,0 @@ -#N canvas 266 135 637 523 12; -#X obj 19 128 +~; -#X obj 18 209 output~; -#X text 141 3 NONLINEAR DISTORTION AND DIFFERENCE TONES; -#X obj 154 171 / 100; -#X floatatom 154 151 5 0 500 0 - - -; -#X obj 18 181 clip~ -1 1; -#X floatatom 42 81 5 0 0 0 - - -; -#X obj 42 103 osc~ 200; -#X obj 18 155 *~; -#X obj 42 35 loadbang; -#X msg 154 127 50; -#X obj 154 103 loadbang; -#X text 385 494 updated for Pd version 0.37; -#X text 94 80 <-- frequency of second tone; -#X text 209 151 <-- before clipping; -#X text 234 134 amplitude of sum; -#X obj 18 9 osc~ 300; -#X msg 42 58 225; -#X text 99 226 This patch demonstrates how nonlinear distortion (also -known as "waveshaping") can create difference tones from a pair of -sinusoids. The sinusoids are initially tuned to 225 and 300 Hz \, a -musical fourth \, and have amplitude of 50 percent (0.5) so that the -sum is always less than 1 in absolute value. At these settings the -"clip~" object passes its input through unchanged.; -#X text 100 344 If the amplitude rises above 50 percent \, the clip~ -object starts altering the signal nonlinearly \, and the result is -no longer as if the two sinusoids had been processed separately. Instead -\, they "intermodulate" \, finding a common subharmonic if one exists. -At 300 and 225 Hz \, the subharmonic is at 75 \, two octaves below -the upper tone and a twelveth below the lower one. Change the frequency -of the second tone and you will hear a variety of effects.; -#X connect 0 0 8 0; -#X connect 3 0 8 1; -#X connect 4 0 3 0; -#X connect 5 0 1 0; -#X connect 5 0 1 1; -#X connect 6 0 7 0; -#X connect 7 0 0 1; -#X connect 8 0 5 0; -#X connect 9 0 17 0; -#X connect 10 0 4 0; -#X connect 11 0 10 0; -#X connect 16 0 0 0; -#X connect 17 0 6 0; -- cgit v1.2.1