{"id":1656,"date":"2010-06-30T18:18:14","date_gmt":"2010-06-30T09:18:14","guid":{"rendered":"http:\/\/r-dimension.xsrv.jp\/classes_j\/?p=1656"},"modified":"2024-06-26T15:47:59","modified_gmt":"2024-06-26T06:47:59","slug":"frequency","status":"publish","type":"post","link":"https:\/\/r-dimension.xsrv.jp\/classes_j\/frequency\/","title":{"rendered":"\u30a8\u30d5\u30a7\u30af\u30c8\u3001\u5468\u6ce2\u6570\u89e3\u6790"},"content":{"rendered":"\n

\u524d\u56de\u306f\u97f3\u306e\u57fa\u672c\u3068\u3001minim\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3063\u3066\u5b9f\u969b\u306b\u97f3\u3092\u518d\u751f\u3057\u6ce2\u5f62\u3092\u898b\u3066\u307f\u307e\u3057\u305f\u3002
\u305d\u306e\u4e2d\u3067\u3001\u5b9f\u969b\u306b\u4e16\u306e\u4e2d\u306b\u3042\u3075\u308c\u3066\u3044\u308b\u97f3\u306f\u7d14\u97f3\u304c\u5408\u6210\u3055\u308c\u305f\u8907\u5408\u97f3\u306e\u3082\u306e\u304c\u591a\u3044\u3068\u3044\u3046\u8a71\u3082\u3057\u307e\u3057\u305f\u3002
\u4eca\u56de\u306f\u3001\u305d\u306e\u8907\u5408\u97f3\u306e\u4e2d\u306e\u5468\u6ce2\u6570\u3092\u76f4\u63a5\u64cd\u4f5c\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002
\u3053\u306e\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u4f8b\u3048\u3070\u518d\u751f\u3057\u305f\u97f3\u697d\u306e\u5468\u6ce2\u6570\u306b\u3088\u3063\u3066\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u5909\u5316\u3057\u3066\u3044\u304f\u3068\u3044\u3046\u3088\u3046\u306a\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n

map()<\/h1>\n\n\n\n

\u307e\u305a\u5148\u306b\u3001\u97f3\u306e\u64cd\u4f5c\u3068\u306f\u76f4\u63a5\u95a2\u4fc2\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306e\u4e2d\u3067map()\u3068\u3044\u3046\u95a2\u6570\u304c\u51fa\u3066\u304f\u308b\u306e\u3067\u3001\u307e\u305a\u306f\u305d\u306e\u95a2\u6570\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

map(value, low1, high1, low2, high2)<\/code><\/pre>\n\n\n\n
\u3068\u3044\u3046\u66f8\u304d\u65b9\u3092\u3057\u307e\u3059\u3002
value = \u5909\u66f4\u3059\u308b\u5909\u6570
low1 = \u5909\u66f4\u524d\u306e\u7bc4\u56f2\u306e\u6700\u5c0f\u5024
high1 = \u5909\u66f4\u524d\u306e\u7bc4\u56f2\u306e\u6700\u5927\u5024
low2 = \u5909\u66f4\u5f8c\u306e\u7bc4\u56f2\u306e\u6700\u5c0f\u5024
high2 = \u5909\u66f4\u5f8c\u306e\u7bc4\u56f2\u306e\u6700\u5927\u5024<\/strong><\/p>\n\n\n\n
\u3068\u306a\u308a\u3001\u8981\u306fvalue\u306e\u5024\u3092\u5909\u66f4\u524d\u306e\u7bc4\u56f2\uff08low1\u301chigh1\uff09\u304b\u3089\u5909\u66f4\u5f8c\u306e\u7bc4\u56f2\uff08low2\u301chigh2\uff09\u306b\u3057\u3066\u304f\u308c\u308b\u4fbf\u5229\u306a\u95a2\u6570\u3067\u3059\u3002
\u5b9f\u969b\u306b\u7c21\u5358\u306a\u4f8b\u984c\u3092\u3084\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
void setup(){\n  size(400, 200);\n}\n\nvoid draw(){\n  background(255);\n  stroke(0);\n  \/\/\u57fa\u6e96\u306e\u305f\u3081\u3001\u30de\u30a6\u30b9\u304c\u52d5\u304f\u7bc4\u56f2\u306b\u7dda\u3092\u4f5c\u308b\n  \/\/\u7dda\u306ex\u5ea7\u6a19\u306e\u7bc4\u56f2\u306f100\u304b\u3089200\u306e\u9593\n  line(100, height\/2, 300, height\/2);\n  \n  \/\/mouseX\u304c0\u304b\u3089\u6a2a\u5e45\u306e\u9593\u3092\u52d5\u304f\u6642\u3001x\u306f100\u304b\u3089300\u306e\u7bc4\u56f2\u306e\u5024\u3092\u53d6\u308b\n  float x = map(mouseX, 0, width, 100, 300);\n  fill(255, 0, 0);\n  ellipse(x, height\/2, 10, 10);    \/\/\u5186\u3092\u63cf\u304f\n}<\/code><\/pre>\n\n\n
\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002\u7406\u89e3\u3057\u3066\u3057\u307e\u3048\u3070\u304b\u306a\u308a\u4fbf\u5229\u3067\u3059\u306d\u3002\u30de\u30a6\u30b9\u30a2\u30af\u30b7\u30e7\u30f3\u306b\u7d50\u69cb\u4f7f\u3048\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3001\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf<\/h1>\n
\u3055\u3066\u3001\u30b3\u30b3\u304b\u3089\u304c\u672c\u984c\u3067\u3059\u3002\u307e\u305a\u3001\u5468\u6ce2\u6570\u3092\u76f4\u63a5\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3057\u3066\u307f\u307e\u3059\u3002\u307e\u305a\u3001\u30a8\u30d5\u30a7\u30af\u30c8\u306e\u52b9\u679c\u3068\u3057\u3066\u4ee3\u8868\u7684\u306a\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u3092\u901a\u904e\uff08\u3082\u3057\u304f\u306f\u30ab\u30c3\u30c8\uff09\u3055\u305b\u308b\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\u3053\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u306b\u306f\u5927\u304d\u304f\u5206\u3051\u30663\u7a2e\u985e\u3042\u308a\u307e\u3059\u3002

1. \u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\uff08\u4f4e\u57df\u901a\u904e\u30d5\u30a3\u30eb\u30bf\uff09
2. \u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\uff08\u9ad8\u57df\u901a\u904e\u30d5\u30a3\u30eb\u30bf\uff09
3. \u30d0\u30f3\u30c9\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\uff08\u5e2f\u57df\u901a\u904e\u30d5\u30a3\u30eb\u30bf\uff09
<\/strong><\/p>\n
\u4eca\u56de\u306f\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3068\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3092\u4f5c\u3063\u3066\u307f\u307e\u3059\u3002\u30d0\u30f3\u30c9\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u306f\u3001\u524d\u8ff0\u306e2\u3064\u306e\u30d5\u30a3\u30eb\u30bf\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u306a\u308b\u306e\u3067\u3053\u3053\u3067\u306f\u89e6\u308c\u307e\u305b\u3093\u3002
\u307e\u305a\u306f\u3001\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3067\u3059\u3002\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u306f\u4ee5\u4e0b\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n
sample.mp3<\/a>\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a><\/div>\n\n\n\n
\/\/written by  by Damien Di Fede.\n\/\/arranged by Yasushi Noguchi.\n\nimport ddf.minim.*;\nimport ddf.minim.effects.*;\n\nMinim minim; \/\/Minim\u578b\u5909\u6570\u3067\u3042\u308bminim\u306e\u5ba3\u8a00\nAudioPlayer player;  \/\/\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u683c\u7d0d\u7528\u306e\u5909\u6570\nLowPassSP lpf;  \/\/\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u7528\u306e\u5909\u6570\nfloat cutoff;    \/\/\u524a\u9664\u3059\u308b\u5468\u6ce2\u6570\u306e\u3057\u304d\u3044\u5024\nint waveH;    \/\/\u6ce2\u5f62\u306e\u9ad8\u3055\n\nvoid setup(){\n  size(512, 200);\n  minim = new Minim(this);  \/\/\u521d\u671f\u5316\n  \/\/sample.mp3\u3092\u30ed\u30fc\u30c9\u3057\u3066\u3001\u30d0\u30c3\u30d5\u30a1\u3092\u78ba\u4fdd(1024k)\n  player = minim.loadFile(\"sample.mp3\", 1024);\n  player.loop();  \/\/\u30eb\u30fc\u30d7\u518d\u751f\n\n  \/\/5000Hz\u3067\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u3002\n  \/\/\uff12\u3064\u76ee\u306e\u5f15\u6570\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u30ec\u30fc\u30c8\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30ec\u30fc\u30c8\u306f\u3001\u6b63\u78ba\u306a\u8a08\u7b97\u306e\u305f\u3081\u5fc5\u8981\u3002\n  lpf = new LowPassSP(5000, player.sampleRate());\n  player.addEffect(lpf);    \/\/\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u8a2d\u5b9a\n  \n  waveH = 50;    \/\/\u6ce2\u5f62\u306e\u9ad8\u3055\u309250\u306b\u8a2d\u5b9a\n}\n\nvoid draw(){\n  background(0);\n  stroke(255);\n  \/\/\u6ce2\u5f62\u3092\u63cf\u304f\n  for ( int i = 0; i < player.bufferSize() - 1; i++ ){\n    \/\/\u5de6\u306e\u97f3\u306f\u4e0a\u306b\u3001\u53f3\u306e\u97f3\u306f\u4e0b\u306b\u8868\u793a\u3002\n    \/\/left.get()\u3068right.get()\u306f1\u304b\u3089-1\u306e\u9593\u306e\u5024\u3092\u53d6\u308b\u306e\u3067\u3001\u898b\u3084\u3059\u3044\u3088\u3046\u306bwaveH\u3092\u639b\u3051\u308b\u3002\n    point(i, 50 + player.left.get(i)*waveH);\t\/\/\u5de6\u306e\u97f3\u58f0\u306e\u6ce2\u5f62\u3092\u753b\u9762\u4e0a\u306b\u63cf\u304f\n    point(i, 150 + player.right.get(i)*waveH);\t\/\/\u53f3\u3000\u3000\u3003\n  }\n}\n\n\/\/\u3082\u3057\u30de\u30a6\u30b9\u304c\u52d5\u3044\u305f\u3089\u3001\nvoid mouseMoved(){\n\n  \/\/mouseX\u304c0~512\uff08\u6a2a\u5e45\uff09\u306e\u6642\u306b\u3001\u305d\u306emouseX\u306e\u7bc4\u56f2\u309220~5000\u306b\u5909\u66f4\u3059\u308b\u3002\n  cutoff = map(mouseX, 0, width, 20, 5000);\n  lpf.setFreq(cutoff);    \/\/\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u8a2d\u5b9a\u3057\u76f4\u3059\n}\n\nvoid mousePressed(){\n\n  println(cutoff);    \/\/\u3057\u304d\u3044\u5024\u3092\u8868\u793a\n}\n\nvoid stop(){\n\n  \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u524d\u306bAudioPlayer\u3092\u7d42\u4e86\u3059\u308b\n  player.close();\n  \/\/ minim\u3092\u7d42\u4e86\n  minim.stop();\n\n  \/\/\u30bd\u30d5\u30c8\u5168\u4f53\u3092\u7d42\u4e86\n  super.stop();\n}<\/code><\/pre>\n\n\n
\u6b21\u306b\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3067\u3059\u3002<\/p>\n\n\n
\/\/written by  by Damien Di Fede.\n\/\/arranged by Yasushi Noguchi.\n\nimport ddf.minim.*;\nimport ddf.minim.effects.*;\n\nMinim minim; \/\/Minim\u578b\u5909\u6570\u3067\u3042\u308bminim\u306e\u5ba3\u8a00\nAudioPlayer player;  \/\/\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u683c\u7d0d\u7528\u306e\u5909\u6570\nHighPassSP hpf;  \/\/\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u7528\u306e\u5909\u6570\nfloat cutoff;    \/\/\u524a\u9664\u3059\u308b\u5468\u6ce2\u6570\u306e\u3057\u304d\u3044\u5024\nint waveH;    \/\/\u6ce2\u5f62\u306e\u9ad8\u3055\n\n\nvoid setup(){\n  size(512, 200);\n  minim = new Minim(this);  \/\/\u521d\u671f\u5316\n  \/\/sample.mp3\u3092\u30ed\u30fc\u30c9\u3057\u3066\u3001\u30d0\u30c3\u30d5\u30a1\u3092\u78ba\u4fdd(1024k)\n  player = minim.loadFile(\"sample.mp3\", 1024);\n  player.loop();  \/\/\u30eb\u30fc\u30d7\u518d\u751f\n\n  \/\/1000Hz\u3067\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u3002\n  \/\/\uff12\u3064\u76ee\u306e\u5f15\u6570\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u30ec\u30fc\u30c8\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30ec\u30fc\u30c8\u306f\u3001\u6b63\u78ba\u306a\u8a08\u7b97\u306e\u305f\u3081\u5fc5\u8981\u3002\n  hpf = new HighPassSP(100, player.sampleRate());\n  player.addEffect(hpf);    \/\/\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u8a2d\u5b9a\n\n  waveH = 50;    \/\/\u6ce2\u5f62\u306e\u9ad8\u3055\u309250\u306b\u8a2d\u5b9a\n}\n\nvoid draw(){\n\n  background(0);\n  stroke(255);\n\n  \/\/\u6ce2\u5f62\u3092\u63cf\u304f\n  for(int i = 0; i < player.bufferSize() - 1; i++){\n\n    \/\/\u5de6\u306e\u97f3\u306f\u4e0a\u306b\u3001\u53f3\u306e\u97f3\u306f\u4e0b\u306b\u8868\u793a\u3002\n    \/\/left.get()\u3068right.get()\u306f1\u304b\u3089-1\u306e\u9593\u306e\u5024\u3092\u53d6\u308b\u306e\u3067\u3001\u898b\u3084\u3059\u3044\u3088\u3046\u306bwaveH\u3092\u639b\u3051\u308b\u3002\n    point(i, 50 + player.left.get(i)*waveH);\t\/\/\u5de6\u306e\u97f3\u58f0\u306e\u6ce2\u5f62\u3092\u753b\u9762\u4e0a\u306b\u63cf\u304f\n    point(i, 150 + player.right.get(i)*waveH);\t\/\/\u53f3\u3000\u3000\u3003\n  }\n}\n\n\/\/\u3082\u3057\u30de\u30a6\u30b9\u304c\u52d5\u3044\u305f\u3089\u3001\nvoid mouseMoved(){\n\n  \/\/mouseX\u304c0~512\uff08\u6a2a\u5e45\uff09\u306e\u6642\u306b\u3001\u305d\u306emouseX\u306e\u7bc4\u56f2\u3092100~10000\u306b\u5909\u66f4\u3059\u308b\u3002\n  cutoff = map(mouseX, 0, width, 100, 10000);\n  hpf.setFreq(cutoff);    \/\/\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u8a2d\u5b9a\u3057\u76f4\u3059\n}\n\nvoid mousePressed(){\n\n  println(cutoff);    \/\/\u3057\u304d\u3044\u5024\u3092\u8868\u793a\n}\n\nvoid stop(){\n\n  \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u524d\u306bAudioPlayer\u3092\u7d42\u4e86\u3059\u308b\n  player.close();\n  \/\/ minim\u3092\u7d42\u4e86\n  minim.stop();\n\n  \/\/\u30bd\u30d5\u30c8\u5168\u4f53\u3092\u7d42\u4e86\n  super.stop();\n}<\/code><\/pre>\n\n\n
\u57fa\u672c\u7684\u306b\u30a8\u30d5\u30a7\u30af\u30c8\u306f\u3001\u3053\u306e\u3088\u3046\u306b\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u3092\u5897\u6e1b\u3057\u305f\u308a\u3057\u3066\u5909\u5316\u3055\u305b\u307e\u3059\u3002
\u3057\u304b\u3057\u3001minim\u306b\u306f\u6c4e\u7528\u7684\u306a\u30a8\u30b3\u30fc\u3001\u30ea\u30d0\u30fc\u30d6\u306a\u3069\u306e\u30a8\u30d5\u30a7\u30af\u30c8\u306f\u6a19\u6e96\u3067\u4ed8\u3044\u3066\u3044\u307e\u305b\u3093\u3002\u305d\u308c\u3060\u3051\u539f\u7406\u7684\u306a\u6240\u304b\u3089\u97f3\u58f0\u3092\u64cd\u4f5c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n
FFT (Fast Fourier Transform – \u9ad8\u901f\u30d5\u30fc\u30ea\u30a8\u5909\u63db)<\/h1>\n
\u5468\u6ce2\u6570\u3092\u89e3\u6790\u3059\u308b\u306e\u306b\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002\u6b86\u3069\u306e\u30b5\u30a6\u30f3\u30c9\u30e9\u30a4\u30d6\u30e9\u30ea\u306fFFT\u306e\u6a5f\u80fd\u304c\u3042\u308a\u3001\u8907\u96d1\u306a\u6570\u5f0f\u3092\u66f8\u3044\u3066\u5468\u6ce2\u6570\u89e3\u6790\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\uff08\u50d5\u3082\u5468\u6ce2\u6570\u89e3\u6790\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u8aac\u660e\u3057\u308d\u3068\u8a00\u308f\u308c\u3066\u3082\u3067\u304d\u306a\u3044\uff09\u3002
\u3069\u3046\u3057\u3066\u3082\u539f\u7406\u3092\u77e5\u308a\u305f\u3044\u4eba\u306fWikipedia\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002
FFT\u306e\u8aac\u660e<\/a><\/p>\n
\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9
frequency.aif<\/a><\/p>\n
\u5404\u7a2e\u30b5\u30a4\u30f3\u6ce2\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\uff08\u5b66\u5185\u7528\uff09
sinewave.zip<\/a><\/p>\n
\"\"<\/p>\n\n\n
\/\/written by  by Damien Di Fede.\n\/\/arranged by Yasushi Noguchi.\nimport ddf.minim.analysis.*;\nimport ddf.minim.*;\nMinim minim; \/\/Minim\u578b\u5909\u6570\u3067\u3042\u308bminim\u306e\u5ba3\u8a00\nAudioPlayer player;  \/\/\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u683c\u7d0d\u7528\u306e\u5909\u6570\nFFT fft;    \/\/\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u7528\u5909\u6570\nvoid setup(){\n  size(1024, 200);\n  stroke(0);\n  minim = new Minim(this);\n  \/\/\u30d0\u30c3\u30d5\u30a1\u306ffloat\u578b\u306e\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3060\u3068\u8003\u3048\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3002\n  \/\/\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306f1024\n  player = minim.loadFile(\"frequency.aif\", 1024);\n  player.loop();\n  \/\/FFT\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3002bufferSize()\u306f1024\u3001sampleRate\u306f\u521d\u671f\u8a2d\u5b9a\u3067\u306f44100Hz\u3002\n  fft = new FFT(player.bufferSize(), player.sampleRate());\n  println(\"sample rate is \" +player.sampleRate());\n  println(\"spec size is \" +fft.specSize());\n  println(\"bandwidth is: \" +fft.getBandWidth());    \/\/\u6700\u5c0f\u5358\u4f4d\u306e\u5e2f\u57df\n}\nvoid draw(){\n  background(255);\n  \/\/fft\u3092\u5de6\u3068\u53f3\u306e\u97f3\u58f0\u3092\u6df7\u305c\u3066\u89e3\u6790\n  \/\/\u5de6\u53f3\u306e\u97f3\u3092\u305d\u308c\u305e\u308c\u53d6\u308a\u305f\u3051\u308c\u3070\u3001player.left\u3001player.right\u3068\u3044\u3046\u5f62\u3067\u4f7f\u3046\n  fft.forward(player.mix);\n  \/\/\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u304c44100Hz\u306e\u5834\u5408\u3001\u5b9f\u969b\u306e\u5468\u6ce2\u6570\u306f\u305d\u306e\u534a\u5206\u306e0~22050Hz\u3057\u304b\u5165\u3063\u3066\u3044\u306a\u3044\u3002\n  \/\/\u306a\u306e\u3067\u3001\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u304c1024\u3060\u3068\u3059\u308b\u3068\u3001specSize()\u306f\u30d0\u30c3\u30d5\u30a1\/2 +1 \u306b\u306a\u308b\u3002\u3064\u307e\u308a513\u3002\n  \/\/\u307e\u305f\u3001\u30d0\u30c3\u30d5\u30a1\u304c1024\u3068\u3044\u3046\u3053\u3068\u306f\u300144100Hz\u30921024\u5206\u5272\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u3001\u7d50\u679cBandWidth\u306f43.066406\u306b\u306a\u308b\u3002\n  for(int i = 0; i < fft.specSize() - 1; i++){\n    \/\/\u753b\u9762\u306e\u4e0b\u304b\u3089\u4e0a\u306b\u5ef6\u3073\u308b\u7dda\u3092\u63cf\u304f\n    line(i, height, i, height - fft.getBand(i));\n  }\n}\nvoid stop(){\n  \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u524d\u306bAudioPlayer\u3092\u7d42\u4e86\u3059\u308b\n  player.close();\n  \/\/ minim\u3092\u7d42\u4e86\n  minim.stop();\n  \/\/\u30bd\u30d5\u30c8\u5168\u4f53\u3092\u7d42\u4e86\n  super.stop();\n}<\/code><\/pre>\n\n\n
\u30b5\u30f3\u30d7\u30eb\u306e\u30b5\u30a6\u30f3\u30c9\u3092\u518d\u751f\u3055\u305b\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002
\u3053\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306f\u5168\u4f53\u306744100Hz\uff0844.1kHz\uff09\u306a\u306e\u3067\u3001\u304b\u306a\u308a\u9ad8\u97f3\u306b\u805e\u3053\u3048\u308b\u97f3\u3067\u308210000Hz\u3050\u3089\u3044\u3060\u3068\u3044\u3046\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u3053\u308c\u3067\u3001\u5468\u6ce2\u6570\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u62bd\u51fa\u3057\u305f\u5468\u6ce2\u6570\u306b\u5bfe\u3057\u3066\u3001\u4f55\u304b\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5f53\u3066\u306f\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u306b\u53cd\u5fdc\u3055\u305b\u308b<\/h1>\n
\u3057\u304b\u3057\u3001\u3053\u306e\u5468\u6ce2\u6570\u5e2f\u306e\u7406\u89e3\u306f\u306a\u304b\u306a\u304b\u96e3\u3057\u3044\u306e\u304c\u5b9f\u72b6\u3067\u3059\u3002\u3053\u3053\u3067\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u3092\u5b9f\u884c\u3055\u305b\u3066\u307f\u307e\u3059\u3002
\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u30011000Hz, 5000Hz, 10000Hz\u306e\u97f3\u304c\u3069\u306e\u5e2f\u57df\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3092\u7406\u89e3\u3057\u3001\u7684\u78ba\u306b\u5f62\u306b\u53cd\u6620\u3055\u305b\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n
\"\"<\/p>\n
\u7279\u306b\u3001void setup()\u306e\u4e2d\u306e\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
for(int i = 0; i < fft.specSize(); i++){ \n \n  println(i + \" = \" + fft.getBandWidth()*i + \" ~ \"+ fft.getBandWidth()*(i+1));\n}<\/code><\/pre>\n\n\n\n
\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u219244100Hz
\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u21921024
\u30b9\u30da\u30c3\u30af\u30b5\u30a4\u30ba\u2192\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\/2 + 1 = 513
\u3060\u3068\u3059\u308b\u3068\u3001
44100\/1024\u3067\u3001\u4e00\u3064\u4e00\u3064\u306e\u5468\u6ce2\u6570\u5e2f\u57df\uff08\u30d6\u30ed\u30c3\u30af\uff09\u306f43.066406Hz\u3068\u306a\u308a\u307e\u3059\u3002
\u3064\u307e\u308a\u3053\u306e\u5e45\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u304c1024\u500b\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u300120000Hz\u4ee5\u4e0a\u306f\u97f3\u304c\u5165\u3063\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u8996\u899a\u5316\u3059\u308b\u3068\u304d\u306b\u306f\u30b9\u30da\u30c3\u30af\u30b5\u30a4\u30ba\u306e\u65b9\u3092\u4f7f\u3046\u3068\u3044\u3044\u3067\u3057\u3087\u3046\u3002\u30b9\u30da\u30c3\u30af\u30b5\u30a4\u30ba\u306f\u3053\u306e\u5834\u5408\u3001513\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u305d\u3057\u3066\u3053\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\uff08\u4f8b\u3048\u30701000Hz\uff09\u304c\u4f55\u756a\u76ee\u306e\u30d6\u30ed\u30c3\u30af\u306b\u3042\u308b\u304b\u304c\u5206\u304b\u308b\u306e\u3067\u3059\u3002\u5b9f\u969b\u306b\u5b9f\u884c\u3057\u3066\u307f\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u5024\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\uff08\u3053\u3053\u3067\u306f26\u756a\u76ee\u306e\u30d6\u30ed\u30c3\u30af\u307e\u3067\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\uff09\u3002<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u3059\u308b\u3068\u30011000Hz\u306f23\u756a\u76ee\u306e\u30d6\u30ed\u30c3\u30af\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002
\u3088\u3063\u3066\u30011000Hz\u306e\u5468\u6ce2\u6570\u306e\u97f3\u306b\u5186\u306e\u5927\u304d\u3055\u3092\u53cd\u5fdc\u3055\u305b\u305f\u3044\u5834\u5408\u306b\u306f\u3001draw\u95a2\u6570\u5185\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
ellipse(100, 100, fft.getBand(23), fft.getBand(23));    \/\/1000Hz\u306fi = 23\u306e\u5468\u6ce2\u6570\u5bfe\u306b\u542b\u307e\u308c\u308b<\/code><\/pre>\n\n\n\n
\u4ee5\u4e0b\u304c\u5b8c\u5168\u306a\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n
\/\/written by  by Damien Di Fede.\n\/\/arranged by Yasushi Noguchi.\nimport ddf.minim.analysis.*;\nimport ddf.minim.*;\nMinim minim; \/\/Minim\u578b\u5909\u6570\u3067\u3042\u308bminim\u306e\u5ba3\u8a00\nAudioPlayer player;  \/\/\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u683c\u7d0d\u7528\u306e\u5909\u6570\nFFT fft;    \/\/\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u7528\u5909\u6570\nPFont font;\nvoid setup(){\n  size(400, 200);\n  noStroke();\n  font = createFont(\"Arial\", 14);\n  textFont(font);\n  minim = new Minim(this);\n  \/\/\u30d0\u30c3\u30d5\u30a1\u306ffloat\u578b\u306e\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3060\u3068\u8003\u3048\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3002\n  \/\/\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306f1024\n  player = minim.loadFile(\"sin01000.AIF\", 1024);    \/\/\u3053\u3053\u3067\u306f1000Hz\u306e\u97f3\u3092\u518d\u751f\u3059\u308b\n  player.loop();\n  \/\/FFT\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3002bufferSize()\u306f1024\u3001sampleRate\u306f\u518d\u751f\u3059\u308b\u30b5\u30a6\u30f3\u30c9\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u306b\u3088\u308b\u3002\n  \/\/\u901a\u5e38\u300144100Hz\u304b22050Hz\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f44100Hz\u3002\n  fft = new FFT(player.bufferSize(), player.sampleRate());\n  println(\"sampling reate is \" +player.sampleRate());\n  println(\"spec size is \" +fft.specSize());\n  println(\"bandwidth is: \" +fft.getBandWidth());\n  \/\/BandWidth\u306bi\u3092\u639b\u3051\u308b\u3068\u3001\u305d\u308c\u305e\u308c\u4f55\u756a\u76ee\u306e\u30d6\u30ed\u30c3\u30af\u306b\u76ee\u5f53\u3066\u306e\u5468\u6ce2\u6570\u304c\u542b\u307e\u308c\u308b\u304b\u304c\u5206\u304b\u308b\u3002\n  \/\/\u30b3\u30f3\u30bd\u30fc\u30eb\uff08\u4e00\u756a\u3057\u305f\u306e\u30a8\u30ea\u30a2\uff09\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\n  for(int i = 0; i < fft.specSize(); i++){  \n    println(i + \" = \" + fft.getBandWidth()*i + \" ~ \"+ fft.getBandWidth()*(i+1));\n  }\n}\nvoid draw(){\n  background(0);\n  \/\/stroke(255);\n  \/\/fft\u3092\u5de6\u3068\u53f3\u306e\u97f3\u58f0\u3092\u6df7\u305c\u3066\u89e3\u6790\n  \/\/\u5de6\u53f3\u306e\u97f3\u3092\u305d\u308c\u305e\u308c\u53d6\u308a\u305f\u3051\u308c\u3070\u3001player.left\u3001player.right\u3068\u3044\u3046\u5f62\u3067\u4f7f\u3046\n  fft.forward(player.mix);\n  fill(255);\n  ellipse(100, 100, fft.getBand(23), fft.getBand(23));    \/\/1000Hz\u306fi = 23\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306b\u542b\u307e\u308c\u308b\n  ellipse(200, 100, fft.getBand(116), fft.getBand(116));    \/\/5000Hz\u306fi = 116\u306e\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306b\u542b\u307e\u308c\u308b\n  ellipse(300, 100, fft.getBand(232), fft.getBand(232));     \/\/10000Hz\u306fi = 232\u306e\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306b\u542b\u307e\u308c\u308b\n  fill(255, 0, 0);\n  text(\"1000Hz\", 80, 100);    \/\/\u30c6\u30ad\u30b9\u30c8\u8868\u793a\n  text(\"5000Hz\", 180, 100);\n  text(\"10000Hz\", 280, 100);\n} \nvoid stop(){\n  \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u524d\u306bAudioPlayer\u3092\u7d42\u4e86\u3059\u308b\n  player.close();\n  \/\/ minim\u3092\u7d42\u4e86\n  minim.stop();\n  \/\/\u30bd\u30d5\u30c8\u5168\u4f53\u3092\u7d42\u4e86\n  super.stop();\n}<\/code><\/pre>\n\n\n
\u52d5\u304d\u3092\u6ed1\u3089\u304b\u306b\u3059\u308b<\/h1>\n
\u3086\u308b\u3084\u304b\u306b\u5f62\u3084\u30b5\u30a4\u30ba\u3001\u8272\u3092\u5909\u5316\u3055\u305b\u305f\u3044\u5834\u5408\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u3092\u53c2\u8003\u306b\u3057\u307e\u3059\u3002<\/p>\n
\"\"<\/a><\/p>\n\n\n
float objY;    \/\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306ex, y\u5ea7\u6a19\nfloat disY;    \/\/mouse\u5ea7\u6a19\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8ddd\u96e2\n\/\/mouse\u304c\u62bc\u3055\u308c\u305f\u3068\u304d\u306b\u3001\u4e00\u6642\u7684\u306bx, y\u5ea7\u6a19\u3092\u4fdd\u5b58\u3057\u3066\u304a\u304f\u305f\u3081\u306e\u5909\u6570\nfloat targetY;\nfloat delay = 10.0;    \/\/\u30de\u30a6\u30b9\u306b\u9045\u308c\u308b\u5ea6\u5408\u3044\nvoid setup() {\n  size(400, 400);\n  background(255);\n  noStroke();\n  fill(0);\n  \n  objY = targetY = 0;\n}\nvoid draw() {\n  background(255);\n  if (mousePressed) targetY = mouseY;\n  else targetY = 0;\n  \/\/\u30de\u30a6\u30b9\u5ea7\u6a19\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8ddd\u96e2\u3092disY\u306b\u5165\u308c\u308b\n  disY = targetY - objY;\n  \/\/\u8ddd\u96e2\uff08disX, disY\uff09\u3092delay\u3067\u5272\u3063\u305f\u5024\u3092\u8db3\u3059\uff08\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u79fb\u52d5\u3059\u308b\uff09\n  objY = objY + disY\/delay;\n  rect(0, 0, width, objY);\n}<\/code><\/pre>\n\n\n
\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3092\u57fa\u306b\u3057\u3066\u3001FFT\u306e\u30b3\u30fc\u30c9\u3092\u4fee\u6b63\u3059\u308b\u3068\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n\n\n
\/\/written by  by Damien Di Fede.\n\/\/arranged by Yasushi Noguchi.\nimport ddf.minim.analysis.*;\nimport ddf.minim.*;\nMinim minim; \/\/Minim\u578b\u5909\u6570\u3067\u3042\u308bminim\u306e\u5ba3\u8a00\nAudioPlayer player;  \/\/\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u683c\u7d0d\u7528\u306e\u5909\u6570\nFFT fft;    \/\/\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u7528\u5909\u6570\nPFont font;\nfloat obj1, dis1, target1;\nfloat obj2, dis2, target2;\nfloat obj3, dis3, target3;\nfloat delay = 10.0;\nvoid setup()\n{\n  size(400, 200);\n  noStroke();\n  font = createFont(\"Arial\", 14);\n  textFont(font);\n  minim = new Minim(this);\n  \/\/\u30d0\u30c3\u30d5\u30a1\u306ffloat\u578b\u306e\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3060\u3068\u8003\u3048\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3002\n  \/\/\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306f1024\n  player = minim.loadFile(\"frequency.aif\", 1024);    \/\/\u3053\u3053\u3067\u306f1000Hz\u306e\u97f3\u3092\u518d\u751f\u3059\u308b\n  player.loop();\n  \/\/FFT\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3002bufferSize()\u306f1024\u3001sampleRate\u306f\u518d\u751f\u3059\u308b\u30b5\u30a6\u30f3\u30c9\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u306b\u3088\u308b\u3002\n  \/\/\u901a\u5e38\u300144100Hz\u304b22050Hz\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f44100Hz\u3002\n  fft = new FFT(player.bufferSize(), player.sampleRate());\n  println(\"sampling reate is \" +player.sampleRate());\n  println(\"spec size is \" +fft.specSize());\n  println(\"bandwidth is: \" +fft.getBandWidth());\n  \/\/BandWidth\u306bi\u3092\u639b\u3051\u308b\u3068\u3001\u305d\u308c\u305e\u308c\u4f55\u756a\u76ee\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5230\u5e95\u306e\u5468\u6ce2\u6570\u304c\u542b\u307e\u308c\u308b\u304b\u304c\u5206\u304b\u308b\u3002\n  \/\/\u30b3\u30f3\u30bd\u30fc\u30eb\uff08\u4e00\u756a\u3057\u305f\u306e\u30a8\u30ea\u30a2\uff09\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\n  for (int i = 0; i < fft.specSize(); i++)\n  {  \n    println(i + \" = \" + fft.getBandWidth()*i + \" ~ \"+ fft.getBandWidth()*(i+1));\n  }\n}\nvoid draw()\n{\n  background(0);\n  \/\/stroke(255);\n  \/\/fft\u3092\u5de6\u3068\u53f3\u306e\u97f3\u58f0\u3092\u6df7\u305c\u3066\u89e3\u6790\n  \/\/\u5de6\u53f3\u306e\u97f3\u3092\u305d\u308c\u305e\u308c\u53d6\u308a\u305f\u3051\u308c\u3070\u3001player.left\u3001player.right\u3068\u3044\u3046\u5f62\u3067\u4f7f\u3046\n  fft.forward(player.mix);\n  target1 = fft.getBand(23);  \/\/\u5230\u9054\u5730\u70b9\u306etarget1\u306b23\u756a\u76ee\u306e\u5468\u6ce2\u6570\u306e\u5024\u3092\u5165\u308c\u308b\n  dis1 = target1 - obj1;      \/\/target1\u304b\u3089\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u3067\u306e\u8ddd\u96e2\u3092\u8a08\u7b97\n  obj1 = obj1 + dis1 \/ delay;  \/\/\u73fe\u5728\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5927\u304d\u3055\u3092\u8a08\u7b97\n  target2 = fft.getBand(116);\n  dis2 = target2 - obj2;\n  obj2 = obj2 + dis2 \/ delay;\n  target3 = fft.getBand(232);\n  dis3 = target3 - obj3;\n  obj3 = obj3 + dis3 \/ delay;\n  fill(255);\n  ellipse(100, 100, obj1, obj1);    \/\/1000Hz\u306fi = 23\u306e\u5468\u6ce2\u6570\u5bfe\u306b\u542b\u307e\u308c\u308b\n  ellipse(200, 100, obj2, obj2);    \/\/5000Hz\u306fi = 116\u306e\u306e\u5468\u6ce2\u6570\u306b\u542b\u307e\u308c\u308b\n  ellipse(300, 100, obj3, obj3);     \/\/10000Hz\u306fi = 232\u306e\u306e\u5468\u6ce2\u6570\u306b\u542b\u307e\u308c\u308b\n  fill(255, 0, 0);\n  text(\"1000Hz\", 80, 100);    \/\/\u30c6\u30ad\u30b9\u30c8\u8868\u793a\n  text(\"5000Hz\", 180, 100);\n  text(\"10000Hz\", 280, 100);\n} \nvoid stop()\n{\n  \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u524d\u306bAudioPlayer\u3092\u7d42\u4e86\u3059\u308b\n  player.close();\n  \/\/ minim\u3092\u7d42\u4e86\n  minim.stop();\n  \/\/\u30bd\u30d5\u30c8\u5168\u4f53\u3092\u7d42\u4e86\n  super.stop();\n}<\/code><\/pre>\n\n\n
\u6700\u5f8c\u306b\u914d\u5217\u3092\u4f7f\u3063\u3066\u3001\u8907\u6570\uff08\u3053\u306e\u5834\u5408\u306f233\u500b\uff09\u306e\u5186\u3092\u53cd\u5fdc\u3055\u305b\u307e\u3057\u3087\u3046\u3002<\/p>\n
\"\"<\/a><\/p>\n\n\n
\/\/written by  by Damien Di Fede.\n\/\/arranged by Yasushi Noguchi.\nimport ddf.minim.analysis.*;\nimport ddf.minim.*;\nMinim minim; \/\/Minim\u578b\u5909\u6570\u3067\u3042\u308bminim\u306e\u5ba3\u8a00\nAudioPlayer player;  \/\/\u30b5\u30a6\u30f3\u30c9\u30c7\u30fc\u30bf\u683c\u7d0d\u7528\u306e\u5909\u6570\nFFT fft;    \/\/\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u7528\u5909\u6570\nPFont font;\nfloat[] obj = new float[233];\nfloat[] dis = new float[233];\nfloat[] target = new float[233];\nfloat delay = 10.0;\nvoid setup()\n{\n  size(500, 200);\n  noStroke();\n  font = createFont(\"Arial\", 14);\n  textFont(font);\n  minim = new Minim(this);\n  \/\/\u30d0\u30c3\u30d5\u30a1\u306ffloat\u578b\u306e\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3060\u3068\u8003\u3048\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3002\n  \/\/\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306f1024\n  player = minim.loadFile(\"frequency.aif\", 1024);    \/\/\u3053\u3053\u3067\u306f1000Hz\u306e\u97f3\u3092\u518d\u751f\u3059\u308b\n  player.loop();\n  \/\/FFT\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3002bufferSize()\u306f1024\u3001sampleRate\u306f\u518d\u751f\u3059\u308b\u30b5\u30a6\u30f3\u30c9\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u306b\u3088\u308b\u3002\n  \/\/\u901a\u5e38\u300144100Hz\u304b22050Hz\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f44100Hz\u3002\n  fft = new FFT(player.bufferSize(), player.sampleRate());\n  println(\"sampling reate is \" +player.sampleRate());\n  println(\"spec size is \" +fft.specSize());\n  println(\"bandwidth is: \" +fft.getBandWidth());\n  \/\/BandWidth\u306bi\u3092\u639b\u3051\u308b\u3068\u3001\u305d\u308c\u305e\u308c\u4f55\u756a\u76ee\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5230\u5e95\u306e\u5468\u6ce2\u6570\u304c\u542b\u307e\u308c\u308b\u304b\u304c\u5206\u304b\u308b\u3002\n  \/\/\u30b3\u30f3\u30bd\u30fc\u30eb\uff08\u4e00\u756a\u3057\u305f\u306e\u30a8\u30ea\u30a2\uff09\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\n  for (int i = 0; i < fft.specSize(); i++)\n  {\n    println(i + \" = \" + fft.getBandWidth()*i + \" ~ \"+ fft.getBandWidth()*(i+1));\n  }\n}\nvoid draw()\n{\n  background(0);\n  \/\/fft\u3092\u5de6\u3068\u53f3\u306e\u97f3\u58f0\u3092\u6df7\u305c\u3066\u89e3\u6790\n  \/\/\u5de6\u53f3\u306e\u97f3\u3092\u305d\u308c\u305e\u308c\u53d6\u308a\u305f\u3051\u308c\u3070\u3001player.left\u3001player.right\u3068\u3044\u3046\u5f62\u3067\u4f7f\u3046\n  fft.forward(player.mix);\n  for (int i = 0; i < 233; i ++) {\n    target[i] = fft.getBand(i) * 2;  \/\/\u5230\u9054\u5730\u70b9\u306etarget1\u306b23\u756a\u76ee\u306e\u5468\u6ce2\u6570\u306e\u5024\u3092\u5165\u308c\u308b\n    dis[i] = target[i] - obj[i];      \/\/target1\u304b\u3089\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u3067\u306e\u8ddd\u96e2\u3092\u8a08\u7b97\n    obj[i] = obj[i] + dis[i] \/ delay;  \/\/\u73fe\u5728\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5927\u304d\u3055\u3092\u8a08\u7b97\n    fill(random(255), random(255), random(255));\n    ellipse(i * 2, 100, obj[i], obj[i]);    \/\/1000Hz\u306fi = 23\u306e\u5468\u6ce2\u6570\u5e2f\u306b\u542b\u307e\u308c\u308b\n  }\n} \nvoid stop()\n{\n  \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7d42\u4e86\u524d\u306bAudioPlayer\u3092\u7d42\u4e86\u3059\u308b\n  player.close();\n  \/\/ minim\u3092\u7d42\u4e86\n  minim.stop();\n  \/\/\u30bd\u30d5\u30c8\u5168\u4f53\u3092\u7d42\u4e86\n  super.stop();\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u524d\u56de\u306f\u97f3\u306e\u57fa\u672c\u3068\u3001minim\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3063\u3066\u5b9f\u969b\u306b\u97f3\u3092\u518d\u751f… Read more »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,11],"tags":[],"class_list":["post-1656","post","type-post","status-publish","format-standard","hentry","category-processing","category-11"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/1656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/comments?post=1656"}],"version-history":[{"count":86,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/1656\/revisions"}],"predecessor-version":[{"id":13473,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/posts\/1656\/revisions\/13473"}],"wp:attachment":[{"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/media?parent=1656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/categories?post=1656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/r-dimension.xsrv.jp\/classes_j\/wp-json\/wp\/v2\/tags?post=1656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}