{"id":1797,"date":"2018-03-05T22:04:57","date_gmt":"2018-03-05T13:04:57","guid":{"rendered":"https:\/\/www.utsbox.com\/?p=1797"},"modified":"2018-07-24T22:35:29","modified_gmt":"2018-07-24T13:35:29","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%b3%e3%83%bc%e3%83%a9%e3%82%b9%e3%83%bb%e3%83%95%e3%83%a9%e3%83%b3","status":"publish","type":"post","link":"https:\/\/www.utsbox.com\/?p=1797","title":{"rendered":"\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u306e\u7c21\u5358\u306a\u5b9f\u88c5\u4f8b \u2013 \u30b3\u30fc\u30e9\u30b9\u30fb\u30d5\u30e9\u30f3\u30b8\u30e3\u30fc"},"content":{"rendered":"

\u30b3\u30fc\u30e9\u30b9\u30fb\u30d5\u30e9\u30f3\u30b8\u30e3\u30fc\u306e\u5b9f\u88c5\u4f8b<\/h1>\n

\u30b3\u30fc\u30e9\u30b9\u30fb\u30d5\u30e9\u30f3\u30b8\u30e3\u30fc\u306f\u5165\u529b\u4fe1\u53f7\u306b\u97f3\u7a0b\u3092\u305a\u3089\u3057\u305f\u97f3\u3092\u6df7\u305c\u3066\u97f3\u306b\u539a\u307f\u3092\u6301\u305f\u305b\u308b\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u3067\u3059\u3002
\n\u30b3\u30fc\u30e9\u30b9\u30fb\u30d5\u30e9\u30f3\u30b8\u30e3\u30fc\u306e\u9055\u3044\u306f\u660e\u78ba\u306b\u306a\u304f\u3001\u97f3\u7a0b\u306e\u305a\u308c\u306e\u5927\u304d\u3055\u3067\u547c\u3073\u65b9\u304c\u5909\u308f\u308a\u307e\u3059\u3002
\n\u30b3\u30fc\u30e9\u30b9\u306f\u97f3\u7a0b\u306e\u305a\u308c\u304c\u5c11\u306a\u304f\u5165\u529b\u4fe1\u53f7\u306b\u539a\u307f\u3092\u6301\u305f\u305b\u308b\u7a0b\u5ea6\u306e\u3082\u3067\u3001\u30d5\u30e9\u30f3\u30b8\u30e3\u30fc\u306f\u97f3\u7a0b\u306e\u305a\u308c\u304c\u5927\u304d\u304f\u5165\u529b\u4fe1\u53f7\u306b\u30b8\u30a7\u30c3\u30c8\u30b5\u30a6\u30f3\u30c9\u3092\u52a0\u3048\u305f\u3088\u3046\u306a\u3082\u306e\u306b\u306a\u308a\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\n
\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th>\n\u610f\u5473<\/th>\n\u3060\u3044\u305f\u3044\u306e\u7bc4\u56f2<\/th>\n<\/tr>\n
\u30df\u30c3\u30af\u30b9\u30ec\u30d9\u30eb<\/td>\n\u30b3\u30fc\u30e9\u30b9\u30fb\u30d5\u30e9\u30f3\u30b8\u30e3\u30fc\u306e\u304b\u304b\u308a\u5177\u5408<\/td>\n0\uff5e1\u306e\u9593<\/td>\n<\/tr>\n
\u30ec\u30fc\u30c8<\/td>\n\u63fa\u3089\u304e\u306e\u9593\u9694(\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u306e\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3059\u901f\u5ea6)<\/td>\n0Hz\uff5e16Hz\u7a0b\u5ea6<\/td>\n<\/tr>\n
\u6df1\u3055<\/td>\n\u63fa\u3089\u304e\u306e\u6df1\u3055(\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u306e\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3059\u5e45)<\/td>\n5.0\uff5e200.0\u30b5\u30f3\u30d7\u30eb\u7a0b\u5ea6<\/td>\n<\/tr>\n
\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af<\/td>\n\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u306e\u52b9\u304d\u5177\u5408<\/td>\n0\uff5e1\u306e\u7bc4\u56f2<\/td>\n<\/tr>\n<\/table>\n

\u5b9f\u88c5\u306f\u5165\u529b\u4fe1\u53f7\u306b\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u5468\u671f\u7684\u306b\u305a\u3089\u3057\u305f(\u63fa\u3089\u3057\u305f)\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u3092\u52a0\u3048\u3066\u51fa\u529b\u3057\u307e\u3059\u3002
\n\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u306e\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u5468\u671f\u7684\u306b\u63fa\u3089\u3059\u3053\u3068\u3067\u3001\u97f3\u7a0b\u304c\u6570Hz\uff5e\u6570\u5341Hz\u7a0b\u5ea6\u5909\u308f\u308a\u307e\u3059\u3002\u3053\u306e\u63fa\u3089\u3057\u305f\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u3092\u5165\u529b\u4fe1\u53f7\u306b\u52a0\u3048\u308b\u3053\u3068\u3067\u97f3\u306b\u539a\u307f\u3092\u6301\u305f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u306f\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u3092\u4f7f\u7528\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306f\u300c\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u3064\u3044\u3066<\/a>\u300d\u3067\u4f5c\u6210\u3057\u305f\u3082\u306e\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002
\n\u307e\u305f\u3001\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3057\u305f\u969b\u3001\u6574\u6570\u5024\u306b\u306a\u3089\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u30b5\u30f3\u30d7\u30eb\u3068\u30b5\u30f3\u30d7\u30eb\u306e\u9593\u306e\u4f4d\u7f6e\u306e\u5024\u3092\u7dda\u5f62\u88dc\u9593\u306a\u3069\u3092\u7528\u3044\u3066\u5272\u308a\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002
\n\u7dda\u5f62\u88dc\u9593\u306e\u8a73\u7d30\u306f\u7701\u7565\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\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\u25a0\u7dda\u5f62\u88dc\u9593\u306e\u5b9f\u88c5
\n[crayon]
\n\/\/ \u7dda\u5f62\u88dc\u9593\u95a2\u6570
\n\/\/ v1\u3068v2\u3092\u5272\u5408t\u3067\u7dda\u5f62\u88dc\u9593\u3059\u308b\u3002t\u306f0.0\uff5e1.0\u306e\u7bc4\u56f2\u3068\u3059\u308b
\n\/\/ t\u304c0.0\u306e\u6642v1\u306e\u5024\u3068\u306a\u308a\u3001t\u304c1.0\u306e\u6642v2\u306e\u5024\u3068\u306a\u308b
\nfloat lerp(float v1, float v2, float t)
\n{
\n\treturn (1.0f – t) * v1 + t * v2;
\n}
\n[\/crayon]
\n\u25a0\u30a8\u30d5\u30a7\u30af\u30bf\u30fc\u306e\u5b9f\u88c5
\n[crayon]
\nvoid delay(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 mix = 0.3f; \/\/ \u30b3\u30fc\u30e9\u30b9\u306e\u304b\u304b\u308a\u5177\u5408\u30020.0\uff5e1.0\u306e\u9593
\n\tfloat rate = 3.0f; \/\/ \u30b3\u30fc\u30e9\u30b9\u306e\u63fa\u3089\u304e\u306e\u9593\u9694\u30020Hz\uff5e16Hz\u7a0b\u5ea6
\n\tfloat depth = 10.0f; \/\/ \u30b3\u30fc\u30e9\u30b9\u306e\u63fa\u3089\u304e\u306e\u6df1\u3055\u30025.0\uff5e200.0\u30b5\u30f3\u30d7\u30eb\u7a0b\u5ea6
\n\tfloat feedback = 0.3f; \/\/ \u30b3\u30fc\u30e9\u30b9\u306e\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u91cf\u30020.0\uff5e1.0\u306e\u9593<\/p>\n

\t\/\/ \u5185\u90e8\u5909\u6570
\n\tCRingBuffur ringbufL, ringbufR; \/\/ \u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1(https:\/\/www.utsbox.com\/?p=1505 \u3088\u308a)<\/p>\n

\t\/\/ \u30c7\u30a3\u30ec\u30a4\u30bf\u30a4\u30e0\u3092\u30b5\u30f3\u30d7\u30eb\u6570\u306b\u5909\u63db\u3057\u3066\u8a2d\u5b9a
\n\t\/\/ depth\u5206\u3060\u3051\u8aad\u307f\u8fbc\u3080\u30b5\u30f3\u30d7\u30eb\u4f4d\u7f6e\u304c\u52d5\u304f\u306e\u3067\u3001\u52d5\u3044\u305f\u969b\u306binterval\u304c0\u4ee5\u4e0b\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b
\n\t\/\/ \u3068\u308a\u3042\u3048\u305a1000\u30b5\u30f3\u30d7\u30eb\u7a0b\u5ea6\u3068\u3059\u308b
\n\t\/\/ (interval\u306f\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1 https:\/\/www.utsbox.com\/?p=1505 \u53c2\u7167)
\n\tint delaysample = 1000;
\n\tringbufL.SetInterval(delaysample);
\n\tringbufR.SetInterval(delaysample);<\/p>\n

\tfloat theta = 0; \/\/ \u30c7\u30a3\u30ec\u30a4\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3059\u305f\u3081\u306esin\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\u30b3\u30fc\u30e9\u30b9\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\/\/ \u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3059\u91cf\u3092\u8a08\u7b97\n\t\t\/\/ sin()\u95a2\u6570\u306e\u7d50\u679c\u306bdepth\u3092\u639b\u3051\u308b\n\t\tfloat a = sin(theta) * depth;\n\n\t\t\/\/ \u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3057\u305f\u969b\u306e\u524d\u5f8c\u306e\u6574\u6570\u5024\u3092\u53d6\u5f97(\u3042\u3068\u3067\u7dda\u5f62\u88dc\u9593\u3059\u308b\u305f\u3081)\n\t\tint p1 = (int)a;\n\t\tint p2 = a + 1;\n\n\t\t\/\/ \u524d\u5f8c\u306e\u6574\u6570\u5024\u304b\u3089\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u306e\u5024\u3092\u7dda\u5f62\u88dc\u9593\u3067\u5272\u308a\u51fa\u3059\n\t\tfloat lerpL1 = lerp(ringbufL.Read(p1), ringbufL.Read(p2), a - (float)p1);\n\t\tfloat lerpR1 = lerp(ringbufR.Read(p1), ringbufR.Read(p2), a - (float)p1);\n\n\t\t\/\/ \u5165\u529b\u4fe1\u53f7\u306b\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u3092\u6df7\u305c\u308b\n\t\tfloat tmpL = (1.0f - mix)*inL[i] + mix * lerpL1;\n\t\tfloat tmpR = (1.0f - mix)*inR[i] + mix * lerpR1;\n\n\t\t\/\/ \u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u3068\u3057\u3066\u5165\u529b\u4fe1\u53f7\u3068\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u4fe1\u53f7\u3092\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u66f8\u304d\u8fbc\u307f\n\t\tringbufL.Write((1.0f - feedback) * inL[i] + feedback * tmpL);\n\t\tringbufR.Write((1.0f - feedback) * inR[i] + feedback * tmpR);\n\n\t\t\/\/ \u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306e\u72b6\u614b\u3092\u66f4\u65b0\u3059\u308b\n\t\tringbufL.Update();\n\t\tringbufR.Update();\n\n\t\t\/\/ \u51fa\u529b\u4fe1\u53f7\u306b\u66f8\u304d\u8fbc\u3080\n\t\toutL[i] = tmpL;\n\t\toutR[i] = tmpR;\n\t}\n}\n[\/crayon]\n\n\u4e0a\u8a18\u306f\u3042\u304f\u307e\u3067\u5b9f\u88c5\u4f8b\u3067\u3059\u3002\n\u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u3092\u63fa\u3089\u3059\u95a2\u6570\u3092Sin\u95a2\u6570\u4ee5\u5916\u306b\u3057\u305f\u308a\u3001\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1<\/a>\u3092\u8907\u6570\u7528\u610f\u3059\u308b\u3053\u3068\u3067\u97f3\u306e\u63fa\u308c\u65b9\u3084\u539a\u307f\u304c\u5909\u308f\u308a\u307e\u3059\u3002
\n\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u4fdd\u5b58\u3059\u308b\u4fe1\u53f7\u3084\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u4fe1\u53f7\u3092\u5de6\u53f3\u9006\u306b\u3057\u305f\u308a\u3001\u30d5\u30a3\u30eb\u30bf<\/a>\u3092\u30c7\u30a3\u30ec\u30a4\u4fe1\u53f7\u306b\u304b\u3051\u3066\u307f\u308b\u306e\u3082\u9762\u767d\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\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

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