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diff --git a/doc/pddp/fft~-help.pd b/doc/pddp/fft~-help.pd new file mode 100644 index 00000000..8581e2f0 --- /dev/null +++ b/doc/pddp/fft~-help.pd @@ -0,0 +1,117 @@ +#N canvas 0 0 555 619 10; +#X obj 0 595 cnv 15 552 21 empty \$0-pddp.cnv.footer empty 20 12 0 +14 -228856 -66577 0; +#X obj 0 0 cnv 15 552 40 empty \$0-pddp.cnv.header fft~ 3 12 0 18 -204280 +-1 0; +#X obj 0 399 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 8 12 0 13 +-228856 -1 0; +#N canvas 51 246 507 361 META 0; +#X text 12 110 PLATFORM windows macosx gnulinux; +#X text 12 210 LIBRARY internal; +#X text 12 250 WEBSITE http://crca.ucsd.edu/~msp/; +#X text 12 290 RELEASE_VERSION 0.41.4; +#X text 12 270 RELEASE_DATE 2009-06-12; +#X text 12 70 LICENSE SIBSD; +#X text 12 230 AUTHOR Miller Puckette; +#X text 12 310 HELP_PATCH_AUTHORS Updated for Pd version 0.33. Jonathan +Wilkes revised the patch to conform to the PDDP template for Pd version +0.42.; +#X text 12 5 GENRE help; +#X text 12 25 NAME fft~; +#X text 12 45 KEYWORDS signal block_oriented analysis needs_work (ifft~ +rfft~ rifft~ need separate help patches); +#X text 12 130 INLET_0 signal; +#X text 12 150 INLET_1 signal; +#X text 12 170 OUTLET_0 signal; +#X text 12 190 OUTLET_1 signal; +#X text 12 90 DESCRIPTION Fourier analyses; +#X restore 500 597 pd META; +#X obj 0 460 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlets 8 12 0 +13 -228856 -1 0; +#X obj 0 523 cnv 3 550 3 empty \$0-pddp.cnv.argument arguments 8 12 +0 13 -228856 -1 0; +#X obj 0 551 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 8 12 +0 13 -228856 -1 0; +#X text 98 527 (none); +#N canvas 103 483 428 107 Related_objects 0; +#X obj 1 1 cnv 15 425 20 empty \$0-pddp.cnv.subheading empty 3 12 0 +14 -204280 -1 0; +#X text 7 1 [fft~] Related Objects; +#X obj 22 42 ifft~; +#X obj 68 42 rfft~; +#X obj 114 42 rifft~; +#X obj 163 42 block~; +#X text 211 42 [switch~]; +#X restore 101 597 pd Related_objects; +#X obj 78 408 cnv 17 3 17 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X obj 78 469 cnv 17 3 17 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X obj 78 433 cnv 17 3 17 empty \$0-pddp.cnv.let.1 1 5 9 0 16 -228856 +-162280 0; +#X obj 491 3 fft~; +#X obj 465 20 pddp/pddplink http://wiki.puredata.info/en/fft~ -text +pdpedia: fft~; +#X floatatom 15 124 0 0 0 0 - - -; +#X obj 15 75 * 44100; +#X floatatom 15 53 0 0 0 0 - - -; +#X obj 15 180 osc~; +#X obj 15 205 rfft~; +#X obj 15 99 / 64; +#X obj 15 261 rifft~; +#X obj 60 261 print~ real; +#X obj 74 236 print~ imaginary; +#X obj 15 298 /~ 64; +#X obj 15 364 print~ resynthesized; +#X msg 25 337 bang; +#X msg 60 192 bang; +#X msg 36 150 0.25; +#X msg 77 150 0; +#X text 42 125 frequency in Hz.; +#X text 43 52 frequency in bins; +#X text 55 298 <- renormalize; +#X text 61 337 <- print resynthesis; +#X text 98 407 signal; +#X text 98 432 signal; +#X obj 78 496 cnv 17 3 17 empty \$0-pddp.cnv.let.1 1 5 9 0 16 -228856 +-162280 0; +#X text 98 495 signal; +#X text 98 468 signal; +#X text 11 23 Fourier analyses; +#X text 183 313 There is no normalization \, so that an FFT followed +by an IFFT has a gain of N.; +#X text 182 352 See the FFT examples to see how to use these in practice. +; +#X text 184 243 The real FFT outputs N/2+1 real parts and N/2-1 imaginary +parts. The other outputs are zero. At DC and at the Nyquist there is +no imaginary part \, but the second through Nth output is as a real +and imaginary pair \, which can be thought of as the cosine and sin +component strengths.; +#X text 104 151 <- bash phase; +#X text 92 193 <- print analysis; +#X text 184 118 The FFT objects do Fourier analyses and resyntheses +of incoming real or complex signals. Complex signals are handled as +pairs of signals (real and imaginary part.) The analysis size is one +block (you can use the [block~] or [switch~] objects to control block +size).; +#X obj 5 597 pddp/pddplink pddp/help.pd -text help; +#X obj 455 51 pddp/dsp-reminder; +#X obj 98 555 pddp/pddplink ../3.audio.examples/I01.Fourier.analysis.pd +-text doc/3.audio.examples/I01.Fourier.analysis.pd; +#X text 98 573 also see examples I02-I10 in doc/3.audio.examples; +#X connect 14 0 17 0; +#X connect 15 0 19 0; +#X connect 16 0 15 0; +#X connect 17 0 18 0; +#X connect 18 0 21 0; +#X connect 18 0 20 0; +#X connect 18 1 22 0; +#X connect 18 1 20 1; +#X connect 19 0 14 0; +#X connect 20 0 23 0; +#X connect 23 0 24 0; +#X connect 25 0 24 0; +#X connect 26 0 21 0; +#X connect 26 0 22 0; +#X connect 27 0 17 1; +#X connect 28 0 17 1; |