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author | Jamie Bullock <jamie@jamiebullock.com> | 2014-11-08 00:07:02 +0000 |
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committer | Jamie Bullock <jamie@jamiebullock.com> | 2014-11-08 00:07:02 +0000 |
commit | ba706261d3fc5b436aa6f09d57e62eeb77377d8f (patch) | |
tree | 4faadd5931a89a847ae9bb2345d9fe7bb0e2f778 /examples/puredata/xtract/mfcc.pd | |
parent | 89890e226e5da72743f885cefb5273c51baf094e (diff) | |
parent | 89a9ec7a352dc35141b8f9a87c202fdd448e9a6f (diff) | |
download | LibXtract-ba706261d3fc5b436aa6f09d57e62eeb77377d8f.tar.gz LibXtract-ba706261d3fc5b436aa6f09d57e62eeb77377d8f.tar.bz2 LibXtract-ba706261d3fc5b436aa6f09d57e62eeb77377d8f.zip |
Merge branch 'feature/no-autotools' into develop
Diffstat (limited to 'examples/puredata/xtract/mfcc.pd')
-rw-r--r-- | examples/puredata/xtract/mfcc.pd | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/examples/puredata/xtract/mfcc.pd b/examples/puredata/xtract/mfcc.pd deleted file mode 100644 index 2310c7f..0000000 --- a/examples/puredata/xtract/mfcc.pd +++ /dev/null @@ -1,276 +0,0 @@ -#N canvas 737 25 578 583 10; -#N canvas 116 214 598 221 guts 0; -#X obj 318 37 loadbang; -#X obj 318 64 f \$0; -#N canvas 0 0 450 300 dacs 0; -#X obj 164 152 a_output~; -#X msg 251 100 0; -#X obj 249 59 r \$0-master-lvl-stereo; -#X obj 251 81 r \$0-master-lvl-mute; -#X obj 251 120 s \$0-master-lvl-stereo; -#X obj 174 110 inlet~; -#X connect 1 0 0 2; -#X connect 1 0 4 0; -#X connect 2 0 0 2; -#X connect 3 0 1 0; -#X connect 5 0 0 0; -#X connect 5 0 0 1; -#X restore 85 126 pd dacs; -#X obj 16 24 r \$0-fund; -#X msg 318 88 \; pd dsp 1 \; \$1-master-lvl-stereo 60 \; \$1-window-gen -bang \; \$1-mfcc xticks 0 5 5 \; \$1-mfcc yticks 0 50 1 \; \$1-mfcc -xlabel -120 0 5 10 15 20; -#N canvas 308 141 679 510 paf 0; -#X obj 331 95 / 10; -#X obj 331 120 pack 0 50; -#X obj 139 412 fexpr~ $x1 * $x2; -#X 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1.32275e-05 1.33069e-05 1.32249e-05 -1.32866e-05 1.32339e-05 1.32487e-05 1.3251e-05 1.32172e-05 1.32353e-05 -1.323e-05 1.31875e-05 1.32223e-05 1.319e-05 1.32038e-05 1.31846e-05 -1.31983e-05 1.31761e-05 1.31802e-05 1.31635e-05 1.31737e-05 1.31439e-05 -1.31682e-05 1.31427e-05 1.31617e-05 1.31332e-05 1.31547e-05 1.3133e-05 -1.31335e-05 1.31252e-05 1.31203e-05 1.31178e-05 1.313e-05 1.31048e-05 -1.31309e-05 1.30961e-05 1.31287e-05 1.30943e-05 1.31076e-05 1.3093e-05 -1.30996e-05 1.30943e-05 1.3103e-05 1.30871e-05 1.31077e-05 1.30727e-05 -1.31072e-05 1.30737e-05 1.3094e-05 1.30748e-05 1.30877e-05 1.30874e-05 -1.30868e-05 1.30789e-05 1.30949e-05 1.30709e-05 1.30856e-05; -#X coords 0 1 511 0 200 140 1; -#X restore 125 121 graph; -#X restore 358 92 pd mag_spectrum; -#X obj 195 211 tabsend~ mag_spectrum; -#X obj 357 64 block~ 1024; -#X obj 197 301 xtract~ mfcc; -#X obj 196 274 tabreceive~ mag_spectrum; -#X obj 197 333 tabsend~ \$0-mfcc; -#X connect 0 0 3 0; -#X connect 1 0 0 0; -#X connect 2 0 0 1; -#X connect 3 0 5 0; -#X connect 7 0 9 0; -#X connect 8 0 7 0; -#X restore 32 167 pd spectrum; -#X connect 0 0 1 0; -#X connect 1 0 4 0; -#X connect 3 0 5 0; -#X connect 5 0 2 0; -#X connect 5 0 10 0; -#X connect 6 0 5 1; -#X connect 7 0 5 2; -#X connect 8 0 9 0; -#X connect 9 0 10 1; -#X restore 516 -222 pd guts; -#X obj 6 -225 cnv 15 500 200 empty empty MFCC 20 12 0 14 -261681 -66577 -0; -#X obj 184 -202 cnv 15 250 150 empty empty empty 20 12 0 14 -262131 --66577 0; -#X obj 465 -187 vsl 10 100 0 127 0 0 \$0-master-lvl-stereo \$0-master-lvl-stereo -out -4 -8 0 8 -262131 -1 -1 0 1; -#X obj 465 -77 bng 10 250 50 0 \$0-master-lvl-mute empty mute -6 16 -0 8 -262131 -1 -1; -#X obj 32 -114 hsl 128 15 20 150 0 0 \$0-cf empty centre_frequency --2 -6 0 8 -225271 -1 -1 700 1; -#X obj 33 -153 hsl 128 15 80 2000 0 0 \$0-fund empty fundamental -2 --6 0 8 -225271 -1 -1 200 1; -#X text 19 7 Notes:; -#X text 20 87 [xtract~ mfcc] outputs a series 20 Mel-Frequency Cepstral -Coefficients. When it is instantiated \, an initialisation function -creates a bank of 20 mel-spaced filters \, between 80Hz and 1800Hz -on a linear scale. All filters have the same gain; -#X text 23 255 With LibXtract it is possible to change the number of -Mel filters as well as the range of frequencies over which they operate -\, and the filter scaling (equal area/equal gain). With this PD example -\, sensible defaults have been chosen to improve usability; -#N canvas 0 0 450 300 (subpatch) 0; -#X array \$0-mfcc 20 float 1; -#A 0 -226.816 39.0179 27.0649 13.3895 3.18296 -4.35309 -6.98078 -6.73432 --4.09373 -1.24401 0.693745 0.961352 0.393719 -0.854615 -1.49734 -1.75847 --1.32051 -0.652124 0.00802549 0.234184; -#X coords 0 50 19 -500 200 100 1; -#X restore 212 -178 graph; -#X text 28 -188 PAF synthesiser; -#X obj 34 -71 hsl 128 15 1 10 0 0 \$0-bw empty formant_bandwidth -2 --6 0 8 -225271 -1 -1 600 1; -#X text 20 36 In this patch [xtract~ spectrum] is first used to extract -the magnitude spectrum from an audio signal in overlapping blocks of -1024 samples.; -#X text 23 165 Whilst DSP is running the input vector (magnitude spectrum) -is filtered by this filterbank \, and the total energy output from -each filter is appended to a new vector. This new vector (mel-filtered -spectrum) is then subjected to a fast cosine transform. The output -can be visualised in the graph labelled \$0-mfcc.; |