{"id":1351,"date":"2017-12-06T23:05:14","date_gmt":"2017-12-06T14:05:14","guid":{"rendered":"https:\/\/www.utsbox.com\/?p=1351"},"modified":"2018-07-24T22:36:26","modified_gmt":"2018-07-24T13:36:26","slug":"%e3%82%a8%e3%83%95%e3%82%a7%e3%82%af%e3%82%bf%e3%83%bc%e3%81%ae%e7%b0%a1%e5%8d%98%e3%81%aa%e5%ae%9f%e8%a3%85%e4%be%8b-%e3%82%aa%e3%83%bc%e3%83%88%e3%83%af%e3%82%a6","status":"publish","type":"post","link":"https:\/\/www.utsbox.com\/?p=1351","title":{"rendered":"\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u306e\u7c21\u5358\u306a\u5b9f\u88c5\u4f8b \u2013 \u30aa\u30fc\u30c8\u30ef\u30a6"},"content":{"rendered":"

\u30aa\u30fc\u30c8\u30ef\u30a6\u306e\u5b9f\u88c5\u4f8b<\/h1>\n

\u30aa\u30fc\u30c8\u30ef\u30a6\u3068\u306f\u30c6\u30f3\u30dd\u306b\u5408\u308f\u305b\u3066\u30ab\u30c3\u30c8\u30aa\u30d5\u5468\u6ce2\u6570\u3092\u5909\u5316\u3055\u305b\u305f\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u5165\u529b\u4fe1\u53f7\u306b\u9069\u7528\u3059\u308b\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u3067\u3059\u3002
\n\u203b\u30aa\u30fc\u30c8\u30ef\u30a6\u306f\u672c\u3084\u30b5\u30a4\u30c8\u306b\u3088\u3063\u3066\u8aac\u660e\u304c\u5909\u308f\u308b\u3088\u3046\u3067\u3059\u304c\u3001\u3053\u3053\u3067\u306f\u30c6\u30f3\u30dd\u306b\u5408\u308f\u305b\u3066\u304b\u304b\u308b\u30ef\u30a6\u3092\u30aa\u30fc\u30c8\u30ef\u30a6\u3068\u3059\u308b\u3053\u3068\u3068\u3057\u307e\u3059\u3002<\/p>\n

\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3068\u3057\u3066\u4e0b\u8a18\u304c\u3088\u304f\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\n\n
\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th>\n\u610f\u5473<\/th>\n\u3060\u3044\u305f\u3044\u306e\u7bc4\u56f2<\/th>\n<\/tr>\n
\u30c6\u30f3\u30dd<\/td>\n\u30ef\u30a6\u306e\u5468\u671f<\/td>\n25\uff5e300BPM\u7a0b\u5ea6<\/td>\n<\/tr>\n
\u6df1\u3055<\/td>\n\u30ef\u30a6\u306e\u6df1\u3055(\u5468\u6ce2\u6570\u5909\u5316\u91cf)<\/td>\n0\uff5e5\u7a0b\u5ea6<\/td>\n<\/tr>\n
\u30ab\u30c3\u30c8\u30aa\u30d5\u5468\u6ce2\u6570<\/td>\n\u30ef\u30a6\u3067\u4f7f\u7528\u3059\u308b\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u30ab\u30c3\u30c8\u30aa\u30d5\u5468\u6ce2\u6570<\/td>\n200\uff5e5kHz\u7a0b\u5ea6<\/td>\n<\/tr>\n<\/table>\n

\u5b9f\u88c5\u306f\u30ab\u30c3\u30c8\u30aa\u30d5\u5468\u6ce2\u6570\u3092\u30c6\u30f3\u30dd\u306b\u5408\u308f\u305b\u3066\u5909\u5316\u3055\u305b\u305f\u30d0\u30f3\u30c9\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u5165\u529b\u4fe1\u53f7\u306b\u304b\u3051\u307e\u3059\u3002<\/p>\n

\u30d5\u30a3\u30eb\u30bf\u306f\u300c\u7c21\u5358\u306a\u30c7\u30b8\u30bf\u30eb\u30d5\u30a3\u30eb\u30bf\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/a>\u300d\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002
\n\u3042\u304f\u307e\u3067\u5b9f\u88c5\u4f8b\u3067\u3059\u306e\u3067\u3044\u3044\u97f3\u8cea\u306e\u3082\u306e\u304c\u307b\u3057\u3044\u5834\u5408\u306f\u3001\u3054\u81ea\u8eab\u3067\u8a66\u884c\u932f\u8aa4\u3044\u305f\u3060\u304f\u3088\u3046\u304a\u9858\u3044\u3057\u307e\u3059\u3002<\/p>\n

\u3010\u5b9f\u88c5\u30a4\u30e1\u30fc\u30b8\u3011
\n[crayon]
\nvoid autowah(float inL[], float inR[], float outL[], float outR[], int wavelength)
\n{
\n\t\/\/ inL[]\u3001inR[]\u3001outL[]\u3001outR[]\u306f\u305d\u308c\u305e\u308c\u5165\u529b\u4fe1\u53f7\u3068\u51fa\u529b\u4fe1\u53f7\u306e\u30d0\u30c3\u30d5\u30a1(\u5de6\u53f3)
\n\t\/\/ wavelenght\u306f\u30d0\u30c3\u30d5\u30a1\u306e\u30b5\u30a4\u30ba\u3001\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u6ce2\u6570\u306f44100Hz\u3068\u3059\u308b<\/p>\n

\t\/\/ \u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc
\n\tfloat tempo = 120.0f; \/\/ \u540c\u671f\u3059\u308b\u30c6\u30f3\u30dd
\n\tfloat depth = 3.5f; \/\/ \u30ef\u30a6\u306e\u304b\u304b\u308a\u5177\u5408(\u5909\u5316\u91cf)\u30020.0\uff5e5.0\u7a0b\u5ea6<\/p>\n

\tfloat freq = 800.0f; \/\/ \u30ef\u30a6\u306e\u5468\u6ce2\u6570\u300250Hz\uff5e5kHz\u7a0b\u5ea6<\/p>\n

\t\/\/ \u5185\u90e8\u5909\u6570
\n\tCMyFilter bandpassL, bandpassR; \/\/ \u30d5\u30a3\u30eb\u30bf\u30fc\u30af\u30e9\u30b9(https:\/\/www.utsbox.com\/?page_id=728 \u3088\u308a)<\/p>\n

\tfloat rate = 1.0f \/ ( 60.0f \/ tempo ) ; \/\/ \u30c6\u30f3\u30dd\u304b\u3089\u30ef\u30a6\u306e\u5468\u671f\u3092\u6c42\u3081\u308b\u3002(\u3068\u308a\u3042\u3048\u305a4\u5206\u97f3\u7b26\u306e\u5468\u671f\u306b\u3059\u308b\u3002\uff09
\n\tfloat theta = 0; \/\/ \u30ef\u30a6\u3092\u5468\u671f\u7684\u306b\u639b\u3051\u308b\u305f\u3081\u306ecos\u95a2\u6570\u306e\u89d2\u5ea6 \u03b8\u3002\u521d\u671f\u5024\u306f0
\n\tfloat speed = (2.0f * 3.14159265f * rate) \/ 44100.0f; \/\/ \u63fa\u3089\u304e\u306e\u30b9\u30d4\u30fc\u30c9\u3002\u89d2\u901f\u5ea6\u03c9\u3068\u540c\u3058\u3002<\/p>\n

\t\/\/ \u5165\u529b\u4fe1\u53f7\u306b\u30a8\u30d5\u30a7\u30af\u30c8\u3092\u304b\u3051\u308b
\n\tfor (int i = 0; i < wavelength; i++)\n\t{\n\t\t\/\/ \u89d2\u5ea6\u03b8\u306b\u89d2\u901f\u5ea6\u3092\u52a0\u3048\u308b\n\t\ttheta += speed;\n\n\t\t\/\/ cos\u95a2\u6570\u306e\u7d50\u679c\u30920\uff5e1\u306e\u9593\u306b\u3059\u308b\n\t\tfloat a = (cos(theta) * 0.5f) + 0.5f;\n\n\t\t\/\/ \u30ef\u30a6\u306e\u5468\u6ce2\u6570\u3092\u8a08\u7b97\n\t\tfloat tmpfreq = freq * (1.0f + a * depth);\n\n\t\t\/\/ \u30d0\u30f3\u30c9\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u8a2d\u5b9a(\u5de6\u53f3\u5206)\n\t\tbandpassL.BandPass(tmpfreq, 1.0f);\n\t\tbandpassR.BandPass(tmpfreq, 1.0f);\n\n\t\t\/\/ \u5165\u529b\u4fe1\u53f7\u306b\u30d5\u30a3\u30eb\u30bf\u3092\u304b\u3051\u3066\u51fa\u529b\u3059\u308b\n\t\toutL[i] = bandpassR.Process(inL[i]);\n\t\toutR[i] = bandpassR.Process(inR[i]);\n\t}\n}\n[\/crayon]\n\n\u4e0a\u8a18\u306f\u3042\u304f\u307e\u3067\u5b9f\u88c5\u4f8b\u3067\u3059\u3002\n\u30d0\u30f3\u30c9\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3092\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u306b\u5909\u3048\u305f\u308a\u3001cos\u95a2\u6570\u3092\u30ce\u30b3\u30ae\u30ea\u72b6\u306e\u6ce2\u5f62\u306a\u3069 \u4ed6\u306e\u5468\u671f\u95a2\u6570\u306b\u3059\u308b\u3053\u3068\u3067\u304b\u304b\u308a\u65b9\u304c\u5909\u308f\u3063\u3066\u304d\u307e\u3059\u3002\n\u307e\u305f\u3001\u30d5\u30a3\u30eb\u30bf\u3092\u304b\u3051\u308b\u524d\u3084\u304b\u3051\u305f\u5f8c\u306b\u5897\u5e45\u3057\u305f\u308a\u98fd\u548c\u95a2\u6570(tanh\u95a2\u6570\u306a\u3069)\u3092\u9069\u7528\u3057\u3066\u30d6\u30fc\u30b9\u30c8\u3057\u3066\u307f\u3066\u3082\u9762\u767d\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\n\n\u8cea\u554f\u306f\u30b3\u30e1\u30f3\u30c8\u6b04\u3084\u63b2\u793a\u677f<\/a>\u3001Twitter<\/a>\u3067\u3044\u305f\u3060\u3051\u3070\u3068\u304a\u3082\u3044\u307e\u3059\u3002
\n\u4ed6\u306e\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u5b9f\u88c5\u4f8b\u306f\u3053\u3061\u3089<\/a>\u306b\u3082\u3042\u308a\u307e\u3059\u3002\u3000\u2192\u3000\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u306e\u7c21\u5358\u306a\u5b9f\u88c5\u4f8b<\/a><\/p>\n

\u25a0\u63b2\u793a\u677f<\/a>
\n\u25a0Twitter\u30a2\u30ab\u30a6\u30f3\u30c8\uff1a@vstcpp\u3000\u3000\u3000URL\uff1ahttps:\/\/twitter.com\/vstcpp<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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