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Diffstat (limited to 'pd/doc/3.audio.examples/A08.phase.mod.pd')
| -rw-r--r-- | pd/doc/3.audio.examples/A08.phase.mod.pd | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/pd/doc/3.audio.examples/A08.phase.mod.pd b/pd/doc/3.audio.examples/A08.phase.mod.pd new file mode 100644 index 00000000..716ba6ab --- /dev/null +++ b/pd/doc/3.audio.examples/A08.phase.mod.pd @@ -0,0 +1,246 @@ +#N canvas 36 68 722 738 12; +#X obj 216 145 *~; +#X floatatom 216 88 0 0 0; +#X obj 297 125 line~; +#X floatatom 128 108 0 0 0; +#X obj 128 222 cos~; +#X obj 128 178 +~; +#X floatatom 166 299 0 0 100; +#N canvas 159 26 495 270 output 0; +#X obj 338 160 t b; +#X obj 338 110 f; +#X obj 338 60 inlet; +#X text 344 29 mute; +#X obj 338 185 f; +#X msg 425 178 0; +#X msg 338 85 bang; +#X obj 338 135 moses 1; +#X obj 425 153 t b f; +#X obj 397 117 moses 1; +#X obj 83 148 dbtorms; +#X obj 397 92 r master-lvl; +#X obj 83 42 r master-lvl; +#X obj 338 210 s master-lvl; +#X obj 22 182 inlet~; +#X obj 199 41 inlet; +#X text 199 18 level; +#X obj 199 100 s master-lvl; +#X msg 96 65 set \$1; +#X obj 96 89 outlet; +#X msg 214 64 \; pd dsp 1; +#X obj 83 194 line~; +#X obj 22 212 *~; +#X obj 22 241 dac~; 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+#X text 12 204 output; +#X text 11 221 waveform -->; +#X text 527 6 PHASE MODULATION; +#X text 417 703 updated for Pd version 0.34; +#X text 13 377 Most implementations of "FM" actually use phase \, not +frequency \, modulation \, because it extends in a more natural way +to "multi-operator FM" with three or more oscillators.; +#X text 15 437 To do phase modulation \, we split the "carrier oscillator" +into its phase calculation (phasor~) and its waveform lookup (cos~). +These together would be equivalent to an osc~ object \, but the "+~" +between them adds the modulating oscillator's output to the phase. +; +#X text 18 587 The units of the "modulation" index change--it is now +dimensionless and relative to the modulation frequency \, and "good" +values tend to be between 0 and 1 In this patch it's in hundredths. +; +#X text 19 658 We also have to use a line~ to smooth changes in the +modulation index \, which wasn't necessary in the previous patch.; +#X obj 128 135 phasor~; +#X obj 117 557 cos~; 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