{"id":1176,"date":"2011-01-19T23:31:57","date_gmt":"2011-01-19T15:31:57","guid":{"rendered":"http:\/\/www.ccttours.com\/blog\/?p=1176"},"modified":"2011-01-19T23:31:58","modified_gmt":"2011-01-19T15:31:58","slug":"sc%ef%bc%9a%e5%8f%98%e9%87%8f%ef%bc%8c%e6%b3%a8%e9%87%8a%ef%bc%8c%e5%81%8f%e7%a7%bb%e5%92%8c%e7%bc%a9%e6%94%be","status":"publish","type":"post","link":"https:\/\/learn.travelchinawith.me\/?p=1176","title":{"rendered":"SC\uff1a\u53d8\u91cf\uff0c\u6ce8\u91ca\uff0c\u504f\u79fb\u548c\u7f29\u653e"},"content":{"rendered":"

\u53d8\u91cf\u548c\u6ce8\u91ca<\/h3>\n

\u5b9a\u4e49\u548c\u4f7f\u7528\u4f60\u81ea\u5df1\u7684\u5c5e\u4e8e\u548c\u51fd\u6570\u5728\u4ee3\u7801\u4e2d\u5f88\u5e38\u89c1\u3002\u53d8\u91cf\u5c31\u4e3a\u6b64\u76ee\u7684\u800c\u751f\u3002\u8bb0\u4f4f\u53d8\u91cf\u540d\u53ef\u4ee5\u662f\u4efb\u4f55\u4e1c\u897f\uff0c\u4f46\u5fc5\u987b\u4ee5\u5c0f\u5199\u5b57\u6bcd\uff08\u6570\u5b57\u4e0d\u884c\uff09\u5f00\u5934\u5e76\u4e14\u662f\u8fde\u7eed\u7684\u3002\u4f7f\u7528\u9690\u79d8\u7684\u540d\u5b57\u6bd4\u5982 tri\uff0cbeg\uff0cpfun\uff0cfreq \u751a\u81f3\u5355\u5b57\u6bcd\u6bd4\u5982 a\uff0cb\uff0cc \u66f4\u5438\u5f15\u4eba\u3002\u66f4\u5177\u4f53\u7684\u540d\u5b57\u867d\u7136\u5199\u8d77\u6765\u8017\u65f6\u66f4\u591a\u4f46\u957f\u8fdc\u6765\u770b\uff0c\u8fd9\u6837\u7684\u505a\u6cd5\u66f4\u597d\uff1afirstPitch, legalDurations, maximumAttack \u7b49\u7b49\u3002
\n<\/p>\n

\u7533\u660e\uff08\u88ab\u7a0b\u5e8f\u8bc6\u522b\uff09\u53d8\u91cf\u7684\u65b9\u5f0f\uff1a\u8bed\u6cd5 var \u540e\u8ddf\u4e00\u4e32\u53d8\u91cf\u540d\uff0c\u4e4b\u95f4\u4ee5\u9017\u53f7\u5206\u5f00\uff0c\u4ee5\u5192\u53f7\u7ed3\u5c3e\u3002\u5206\u914d\u53d8\u91cf\u503c\uff08\u503c\u88ab\u5b58\u50a8\u5230\u53d8\u91cf\u76f8\u5e94\u7684\u5b58\u50a8\u4f4d\u7f6e\uff09\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528\u201c=\u201d\u53f7\uff0c\u540e\u63a5\u4f60\u60f3\u8981\u5b58\u50a8\u7684\u503c\u548c\u5192\u53f7\u3002\u4e4b\u540e\u53d8\u91cf\uff08\u6216\u66f4\u51c6\u786e\u4e9b\uff0c\u5305\u542b\u4e8e\u53d8\u91cf\u4e2d\u7684\u503c\uff09\u4fbf\u53ef\u5728\u7a0b\u5e8f\u91cc\u7684\u4efb\u4f55\u5730\u65b9\u4f7f\u7528\u3002<\/p>\n

\u53d8\u91cf\u4f7f\u7528\u8303\u56f4\u53d6\u51b3\u4e8e\u7533\u660e\u5b83\u7684\u51fd\u6570\u3002\u4e00\u4e2a\u53d8\u91cf\u65e0\u6cd5\u88ab\u7528\u4e8e\u51fd\u6570\u5916\u3002\u4f60\u53ef\u4ee5\u7528 \u6ce2\u6d6a\u53f7\uff08~\uff09\u7533\u660e\u5168\u5c40\u53d8\u91cf\u3002\u8fd9\u65e0\u9700\u4f7f\u7528 var \u8bed\u6cd5\u3002<\/p>\n

\u4e0b\u8fb9\u7b2c\u4e8c\u4f8b\u540c\u6837\u5f15\u5165\u4e86\u8868\u8fbe\u5f0f\u3002\u8868\u8fbe\u5f0f\u53ca\u4ee5\u5206\u53f7\u6253\u65ad\u7684\u4e00\u884c\u4ee3\u7801\u3002\u5b83\u52fe\u753b\u6267\u884c\u987a\u5e8f\uff1a\u57fa\u672c\u4e0a\u662f\u201c\u505a\u8fd9\u4e2a\u201d\uff0c\u201c\u7136\u540e\u8fd9\u4e2a\u201d\u3002\u7136\u540e\u6267\u884c\u987a\u5e8f\u662f\uff1a\u53d8\u91cf\u88ab\u7533\u660e\uff0c\u7136\u540e\u4e09\u4e2a\u53d8\u91cf\u88ab\u8d4b\u503c\uff0c\u7136\u540e SinOsc \u88ab\u653e\u5230\u4e00\u8d77\uff0c\u4f7f\u7528\u90a3\u4e9b\u53d8\u91cf\u5e76\u6f14\u594f\u3002\u53d8\u91cf\u53ef\u4ee5\u5728\u58f0\u660e\u662f\u8d4b\u503c\uff0c\u4e5f\u53ef\u4ee5\u88ab\u4e0b\u4e00patch\u4f7f\u7528\u3002<\/p>\n

11.1. \u7533\u660e\u53d8\u91cf, \u8d4b\u503c \u548c \u6ce8\u91ca<\/strong><\/p>\n

\/\/\u7b2c\u4e00\u4e2apatch\r\n{SinOsc.ar(LFNoise0.ar(10, mul: 400, add: 800), 0, 0.3)}.play<\/pre>\n
\/\/\u7528\u53d8\u91cf\u91cd\u5199\u7b2c\u4e00\u4e2apatch\r\n(\r\n{\r\nvar freqRate, freqRange, lowValue;\r\nfreqRate = 10; \/\/\u6311\u9009\u65b0\u503c\u7684\u6bd4\u7387\r\nfreqRange = 1200; \/\/\u9009\u53d6\u9891\u7387\u7684\u8303\u56f4\r\nlowValue = 60; \/\/\u6700\u4f4e\u9891\r\n\r\nSinOsc.ar(\r\n      LFNoise0.ar(freqRate, freqRange\/2, freqRange + lowValue),\r\n      0, 0.3)\r\n}.play\r\n)<\/pre>\n
\/\/\u66f4\u7b80\u660e\u7248\r\n(\r\n{\r\nvar freqRate = 10, freqRange = 1200, lowValue = 60;\r\n\r\nSinOsc.ar(\r\n      LFNoise0.ar(freqRate, freqRange\/2, freqRange + lowValue),\r\n      0, 0.3)\r\n}.play\r\n)<\/pre>\n
\u4e00\u4e2a\u4f7f\u7528\u53d8\u91cf\u7684\u539f\u56e0\u662f\u7b80\u660e\u3002\u65e9\u5148\u8fd9\u4e2a\u4f8b\u5b50\u9700\u8981\u89e3\u91ca LFNoise0<\/em> \u7684\u5f15\u6570\u3002\u4f46\u53d8\u91cf\u5df2\u505a\u4e86\u81ea\u6211\u8bf4\u660e\u3002\u4f7f\u7528\u5177\u4f53\u7684\u53d8\u91cf\u540d\uff0c\u7a0b\u5e8f\u5458\u4e0d\u4ec5\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u5c55\u793a\u54ea\u91cc\u6709\u503c\u5728\u4f7f\u7528\u8fd8\u53ef\u4ee5\u544a\u8bc9\u522b\u4eba\u4ed6\u4eec\u7684\u610f\u601d\u3002<\/p>\n
\u53d8\u91cf\u540c\u6837\u53ef\u4ee5\u88ab\u7528\u4e8e\u8fde\u7eed\u6027\u3002\u4e00\u4e2a\u503c\uff0c\u6bd4\u5982\u8bf4\u4e00\u4e2a\u57fa\u7840\u9891\u7387\u53ef\u80fd\u5728\u7a0b\u5e8f\u6216patch\u5185\u88ab\u4f7f\u7528\u4e0a\u767e\u6b21\u3002\u4f7f\u7528\u53d8\u91cf\u786e\u4fdd\u5f53\u90a3\u4e2a\u503c\u88ab\u6539\u53d8\uff0c\u4e5f\u7b49\u4e8e\u6539\u53d8\u4e86\u6574\u4e2apatch\u4e2d\u5176\u4ed6\u4f7f\u7528\u5b83\u7684\u90e8\u5206\u3002<\/p>\n
\u53d8\u91cf\u53e6\u4e00\u4e2a\u91cd\u8981\u7684\u7528\u9014\u662f\u8fde\u63a5\u5f15\u6570\u3002\u6bd4\u5982\u8bf4\uff0c\u4f60\u53ef\u80fd\u5e0c\u671b\u9ad8\u9891\u54cd\u8d77\u65f6\u51cf\u4f4e\u97f3\u91cf\uff0c\u800c\u5728\u4f4e\u9891\u54cd\u8d77\u65f6\u52a0\u5927\u97f3\u91cf\u3002\u4f60\u53ef\u80fd\u4e5f\u9700\u8981\u4e00\u4e2a\u57fa\u4e8e\u57fa\u7840\u9891\u7387\u6210\u6bd4\u4f8b\u6539\u53d8\u7684\u6ee4\u6ce2\u622a\u6b62\u9891\u7387\u3002\u4f60\u53ef\u80fd\u60f3\u8981\u4e00\u6761\u5305\u7edc\u7ebf\u7684\u8870\u51cf\u7387\u968f\u7740\u9ad8\u9891\u800c\u51cf\u5c0f\uff08\u8fd9\u53d1\u751f\u5728\u5f88\u591a\u4e50\u5668\u8eab\u4e0a\uff09\u3002\u5982\u679c\u6ca1\u6709\u4e00\u4e2a\u666e\u901a\u53d8\u91cf\u7684\u8bdd\uff0c\u4f60\u53ea\u80fd\u624b\u52a8\u66f4\u6539\u5b83\u4eec\u3002\u6bd4\u5982\u8bf4\uff0c\u8fd9\u91cc\u662f\u5bf9\u4e8e\u540c\u4e00\u58f0\u97f3\u7684\u4e24\u7ec4\u8bbe\u7f6e\u3002<\/p>\n
100 \/\/\u4f4e\u9891
\n0.7 \/\/ \u632f\u5e45
\n600 \/\/\u6ee4\u6ce2\u622a\u6b62
\n2.0 \/\/\u8870\u51cf\u7387<\/p>\n
1200 \/\/\u9ad8\u9891
\n0.3 \/\/\u8f83\u4f4e\u632f\u5e45
\n7200 \/\/\u8f83\u9ad8\u622a\u6b62
\n0.1 \/\/\u8870\u51cf\u7387<\/em><\/p>\n
\u4f7f\u7528\u4e00\u4e2a\u53d8\u91cf\uff0c\u5b83\u4eec\u4fbf\u80fd\u901a\u8fc7\u8868\u8fbe\u5f0f\u8fde\u63a5\u5728\u4e00\u8d77\u3002\u5f53\u9891\u7387\u6539\u53d8\uff0c\u5176\u4ed6\u53d8\u91cf\u4e5f\u76f8\u5e94\u6539\u53d8\u3002<\/p>\n
var freq;
\nfreq = 100 \/\/\u9891\u7387\u53ef\u80fd\u6539\u53d8
\namp = freq\/1200 \/\/\u632f\u5e45\u5bf9\u9891\u7387\u6539\u53d8
\ncut = freq*600 \/\/\u622a\u6b62\u968f\u9891\u7387\u6539\u53d8
\nrate = 100\/freq \/\/\u8870\u51cf\u968f\u9891\u7387\u6539\u53d8<\/em><\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u7528\u4e00\u4e2a\u53d8\u91cf\u4e32\u8054\u4e24\u4e2a\u53c2\u6570\u7684\u4f8b\u5b50\u3002SinOsc<\/em> \u6b63\u5728\u63a7\u5236\u7b2c\u4e00\u4e2a SinOsc<\/em> \u7684\u632f\u5e45\u3002\u8fd9\u4e2apatch\u7684\u60f3\u6cd5\u662f\u95ea\u52a8\u7684\u9891\u7387\u4e0e\u6211\u4eec\u542c\u5230\u7684\u97f3\u8c03\u76f8\u5173\uff1a\u66f4\u9ad8\u7684\u97f3\u4f1a\u6709\u66f4\u5feb\u7684\u95ea\u52a8\u3002\u4f46\u4e4b\u524d\u4e09\u4f8b\u5e76\u672a\u4f7f\u7528\u53d8\u91cf\uff0c\u56e0\u6b64\u5b83\u4eec\u9700\u8981\u88ab\u660e\u786e\u5730\u6307\u51fa\u3002\u7b2c\u56db\u4f8b\u4e2d\uff0c\u4f60\u4ec5\u9700\u6539\u53d8\u4e00\u4e2a\u503c\uff0c\u4e32\u8054\u5230\u5b83\u7684\u53d8\u91cf\u4fbf\u4f1a\u6539\u53d8\u6240\u6709\u53c2\u6570\u3002\u6700\u7ec8\uff0c\u5c06\u5b83\u4eec\u5168\u90e8\u6df7\u5408\u3002<\/p>\n
11.2. \u7533\u660e\u53d8\u91cf, \u8d4b\u503c \u548c \u6ce8\u91ca<\/strong><\/p>\n
{SinOsc.ar(400, mul: max(0, SinOsc.ar(4)))}.play<\/pre>\n
{SinOsc.ar(100, mul: max(0, SinOsc.ar(1)))}.play<\/pre>\n
{SinOsc.ar(1000, mul: max(0, SinOsc.ar(10)))}.play<\/pre>\n
(\r\n      {\r\n            var frequency = 1000; \/\/ \u6539\u53d8\u8fd9\u4e2a\u503c\r\n            SinOsc.ar(frequency, mul: max(0, SinOsc.ar(frequency\/100)))\r\n      }.play\r\n)<\/pre>\n
(\r\n      {\r\n      Mix.ar(\r\n            {\r\n                  var frequency;\r\n                  frequency = exprand(50, 1000);\r\n                  Pan2.ar(\r\n                         SinOsc.ar(frequency, mul: max(0, SinOsc.ar(frequency\/100))),\r\n                         1.0.rand2\r\n                  )\r\n             }.dup(5)\r\n      )*0.5\r\n}.play\r\n)<\/pre>\n
\u4f7f\u7528 Mul \u548c Add \u505a \u504f\u79fb\uff08offset\uff09\u548c\u7f29\u653e\uff08scale\uff09<\/h3>\n
\u7edd\u5927\u591a\u6570 Ugen \u751f\u6210 1 \u5230 -1 \u6216 0 \u5230 1 \u4e4b\u95f4\u7684\u503c\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5f15\u6570 mul \u5c06\u6ce2\u7684\u632f\u5e45\u4ece+\/-1 \u6539\u53d8\u5230 +\/- 0.5, +\/- 0.3 \u7b49\u7b49\u3002\u7ed3\u679c\u662f\u632f\u5e45\u6216\u6ce2\u7684\u5927\u5c0f\u7684\u6539\u53d8\u3002\u5f15\u6570 mul \u500d\u589e\u6216\u7f29\u653e\u6ce2\u5f62\u3002\u653e\u5927\u610f\u5473\u7740\u66f4\u54cd\u7684\u58f0\u97f3\uff0c\u7f29\u5c0f\u610f\u5473\u7740\u66f4\u9759\u3002<\/p>\n
\u5f15\u6570 add \u4fbf\u5b9c Ugen \u7684\u8f93\u51fa\u3002\u5b83\u5c06\u4e2d\u5fc3\u4ece 0 \u6539\u53d8\u5230 add \u7684\u503c\u30020.2 \u7684 mul \u5c06\u7f29\u653e\u8303\u56f4\uff0c\u56e0\u6b64\u6ce2\u5c06\u4e0d\u518d\u4ea7\u751f +\/-1 \u7684\u503c\u800c\u662f +\/\u20130.2 \u8303\u56f4\u7684\u503c\uff0c\u4e2d\u5fc3\u503c\u662f 0\u3002\u5982\u679c\u518d\u52a0\u4e0a 0.5 \u7684 offset \u7ed3\u679c\u4f1a\u600e\u6837\u5462\uff1f\u4e2d\u95f4\u503c\u5c06\u53d8\u4e3a0.5 (0 + 0.5)\uff0c\u5e95\u90e8\u5c06\u662f0.3 (-0.2 + 0.5)\uff0c\u9876\u90e8\u662f0.7 (0.5 + 0.2)\u3002\u4e0b\u8fb9\u662f\u4e09\u4e2a\u56fe\u793a\uff0c\u5206\u522b\u5c55\u793a\u4e86 add \u548c mul \u662f\u5982\u4f55\u6539\u53d8\u4e00\u6761 SinOsc \u6ce2\u5f62\u7684\u3002<\/p>\n
\"\u5de6\uff1a\u5e38\u89c4\u6b63\u5f26\u6ce2\uff0c\u4e2d\uff1a\u7f29\u653e0.2\uff1b\u53f3\uff1a\u7f29\u653e0.2\u504f\u79fb0.5\"<\/a>
\u5de6\uff1a\u5e38\u89c4\u6b63\u5f26\u6ce2\uff0c\u4e2d\uff1a\u7f29\u653e0.2\uff1b\u53f3\uff1a\u7f29\u653e0.2\u504f\u79fb0.5<\/figcaption><\/figure>\n
\u4e3a\u4ec0\u4e48\u4f60\u8981\u504f\u79fb\u4e00\u6761\u6ce2\u5462\uff1f\u5148\u524d\u6211\u4eec\u5b66\u8fc7\u9ad8\u4e8e1.0\u7684\u503c\u662f\u4e0d\u9002\u7528\u4e8e\u632f\u5e45\u7684\u3002\u4f46\u4f60\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230 LFNoise \u6709\u4e2a\u503c\u4e3a400\u7684 mul\u3002\u901a\u5e38\uff0c\u5b83\u4f1a\u751f\u6210-1\u52301\u4e4b\u95f4\u7684\u503c\u3002\u653e\u5927400\u500d\u4e4b\u540e\uff0c\u5b83\u4eec\u53d8\u4e3a+\/-400\u3002\u8fd9\u4e48\u5927\u7684\u503c\u5982\u4f55\u7528\u4e8e\u4e00\u4e2apatch\u4e2d\uff1f\u4e5f\u8bb8\u7ed9\u9891\u7387\uff1f<\/p>\n
\u56de\u5fc6\u4e00\u4e0b\u6211\u4eec\u4e4b\u524d\u90a3\u4e2a mul \u7684\u4f8b\u5b50\uff0cSinOsc \u53ea\u662f\u5410\u51fa\u4e00\u7cfb\u5217\u6570\u5b57\u3002\u90a3\u4e9b\u6570\u5b57\u53ef\u4ee5\u88ab\u6570\u5b66\u8868\u8fbe\u5f0f\u4fee\u6539\u3002\u4e0b\u8fb9\u662f\u4e00\u4e2a\u7c97\u7565\u63cf\u8ff0\u4e09\u89d2\u6ce2\uff08\u4ee5\u4f4e\u91c7\u6837\u7387\uff09\u7684\u6570\u5b57\u6570\u7ec4\uff1a<\/p>\n
\"\u4e09\u89d2\u6ce2\u6570\u5b57\u6570\u7ec4\"<\/a>
\u4e09\u89d2\u6ce2\u6570\u5b57\u6570\u7ec4<\/figcaption><\/figure>\n
\u6216<\/p>\n
[ 0, 0.2, 0.4, 0.6, 0.8, 1, 0.8, 0.6, 0.4, 0.2, 0, -0.2, -0.4, -0.6, -0.8, -1, -0.8, -0.6, -0.4, -0.2, 0]<\/code><\/p>\n
\u6ce8\u610f\u6570\u5b57\u7684\u8d70\u5411\u662f 0 \u5230 1 \u5230 0 \u5230 -1\uff0c\u518d\u5230 0\u3002\u8fd9\u4e0e LFTri \u751f\u6210\u7684\u4e00\u7cfb\u5217\u6570\u5b57\u7c7b\u4f3c\u3002\u5982\u679c\u8fd9\u4e9b\u6570\u5b57\u901a\u901a\u4e58\u4ee5500\uff0c\u5219\u7ed3\u679c\u5c06\u53d8\u4e3a\uff1a[ 0, 20, 40, 60, 80, 100, 80, 60, 40, 0, -20, -40, -60, -80, -100, -80, -60, -40, -20, 0]\u3002\u5b9e\u9645\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9SC\u5e2e\u6211\u4eec\u505a\u6570\u5b66\uff1a<\/p>\n
11.3. \u504f\u79fb\u548c\u7f29\u653e<\/strong><\/p>\n
\/\/ \u7f29\u653e\u4e00\u4e2a\u6570\u7ec4\r\n[0, 0.2, 0.4, 0.6, 0.8, 1, 0.8, 0.6, 0.4, 0.2, 0,\r\n    -0.2, -0.4, -0.6, -0.8, -1, -0.8, -0.6, -0.4, -0.2, 0] * 100<\/pre>\n
\/\/ \u504f\u79fb\u5e76\u7f29\u653e\u4e00\u4e2a\u6570\u7ec4\r\n[0, 0.2, 0.4, 0.6, 0.8, 1, 0.8, 0.6, 0.4, 0.2, 0,\r\n    -0.2, -0.4, -0.6, -0.8, -1, -0.8, -0.6, -0.4, -0.2, 0] * 100 + 600<\/pre>\n
\u5b83\u6709\u540c\u6837\u7684\u5f62\u72b6\u548c\u5927\u5c0f\uff0c\u4f46\u66f4\u5927\u7684\u7f29\u653e\u5e26\u6765\u4e86\u66f4\u5927\u7684\u503c\u3002\u5982\u679c\u6240\u6709\u503c\u90fd\u88ab\u901a\u8fc7\u52a0600\u8fdb\u884c\u504f\u79fb\uff0c\u7ed3\u679c\u5c06\u53d8\u4e3a\uff1a[600, 620, 640, 660, 680, 700, 680, 660, 640, 600, 580, 560, 540, 520, 500, 520, 540, 560, 580, 600]\u3002<\/p>\n
\u4e3a\u4ec0\u4e48\u505a\u504f\u79fb\u548c\u7f29\u653e\uff1f\u8fd9\u6700\u540e\u4e00\u4e32\u6570\u7ec4\u7684\u6570\u5b57\u4e0d\u80fd\u88ab\u7528\u7ed9\u632f\u8361\u5668\uff0c\u56e0\u4e3a\u6211\u4eec\u7684\u626c\u58f0\u5668\u53ea\u63a5\u53d7-1\u52301\u4e4b\u95f4\u7684\u503c\u3002\u5b83\u7ed9\u53e6\u5916\u7684Ugen\u7684\u9891\u7387\u8f93\u5165\u4e5f\u8bb8\u662f\u5bf9\u7684\uff0c\u56e0\u4e3a\u5b83\u4eec\u90fd\u88ab\u7f29\u653e\u548c\u504f\u79fb\u4e3a\u4e86\u6b63\u786e\u7684\u97f3\u9ad8\u503c\u3002\u8fd9\u662f\u5982\u4f55\u4f7f\u7528 mul \u548c add \u7684\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n
\u7f29\u653e\u548c\u504f\u79fb\u53ef\u80fd\u4f1a\u5f15\u8d77\u6df7\u6dc6\uff0c\u56e0\u4e3aUgen\u8f93\u51fa\u7684\u7ed3\u679c\u8303\u56f4\u4e0e\u5b9e\u9645\u7684\u504f\u79fb\u548c\u7f29\u653e\u662f\u4e0d\u540c\u7684\u3002\u4f60\u7528 0.5 \u7684\u504f\u79fb \u548c 0.2 \u7684\u7f29\u653e\uff0c\u4f46\u503c\u7684\u8303\u56f4\u5374\u662f0.3 – 0.7\u3002<\/p>\n
\u4e0b\u8fb9\u7684\u4ee3\u7801\u663e\u793a\u4e86300\u7684\u504f\u79fb\u548c100\u7684\u7f29\u653e\u3002\u4f46\u8303\u56f4\u662f200\u5230400\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u4e00\u4e2a SinOsc<\/em> \u88ab\u7528\u4f5c\u53e6\u4e00\u4e2a SinOsc<\/em> \u9891\u7387\u7684\u5f15\u6570\u3002\u8981\u641e\u6e05\u695a\u5b83\u662f\u5982\u4f55\u88ab\u5e94\u7528\u7684\uff0c\u9996\u5148\u8981\u7b97\u51fa\u5185\u90e8\u8fd9\u4e2a SinOsc \u751f\u6210\u7684\u503c\u3002\u4e0d\u662f\u9ed8\u8ba4\u7684-1\u52301\uff0c\u5b83\u88ab\u7f29\u653e\u5230100\u5230-100\u3002\u504f\u79fb\u628a100\u53d8\u4f5c400\uff0c\u7136\u540e\u628a-100\u53d8\u4f5c200\u3002\u56e0\u6b64\u8303\u56f4\u662f200\u5230400\u3002\u5f53\u9891\u7387\u4e3a4\u65f6\uff0cUgen\u5c06\u6bcf\u79d2\u4ece200\u5230400\u79fb\u52a84\u6b21\u3002\u8fd9\u5c06\u5982\u4f55\u5f71\u54cd\u5916\u90e8 SinOsc \u7684\u9891\u7387\u5462\uff1f<\/p>\n
\u8fd9\u4e00\u6548\u679c\u7684\u672f\u8bed\u53eb\u505a\u7535\u538b\u63a7\u5236\uff0c\u4eca\u540e\u5c06\u4f1a\u8be6\u8ff0\u3002<\/p>\n
11.4. \u4f7f\u7528 Mul \u548c Add \u505a \u504f\u79fb\u548c\u7f29\u653e<\/strong><\/p>\n
{SinOsc.ar(SinOsc.ar(4, 100, 300), 0, 0.3)}.play<\/pre>\n
\u8fd9\u662fSinOsc.ar(4, 100, 300) \u4e00\u79d2\u7684\u56fe\u793a\u3002<\/p>\n
\"SinOsc.ar(4,<\/a>
SinOsc.ar(4, 100, 300) \u4e00\u79d2\u7684\u56fe\u793a<\/figcaption><\/figure>\n
\u504f\u79fb\u548c\u7f29\u653e\u5728\u67d0\u4e9bUgen\u4e0a\u751a\u81f3\u53ef\u4ee5\u53d8\u5f97\u66f4\u52a0\u4f7f\u4eba\u6df7\u6dc6\uff0c\u6bd4\u5982 Env <\/em>\u548c EnvGen<\/em>, \u6216\u8005 LFPulse<\/em>\uff0c\u56e0\u4e3a\u5b83\u4eec\u7684\u9ed8\u8ba4\u8303\u56f4\u662f0\u52301\u800c\u4e0d\u662f-1\u52301\u3002\u8fd8\u53ef\u4ee5\u66f4\u6df7\u6dc6\uff0cMax\/MSP \u6709\u5f88\u5c11\u51e0\u4e2a\u5bf9\u8c61\u7684\u9ed8\u8ba4\u8303\u56f4\u662f0.5\u5230-0.5\u3002\u56e0\u6b64\u7f29\u653e\u548c\u504f\u79fb\u7684\u5f71\u54cd\u662f\u4e0d\u540c\u7684\u3002\u7f29\u653e200\u3001\u504f\u79fb100\u7684 EnvGen<\/em> \u6700\u540e\u7684\u503c\u662f 100 \u5230 300\u3002\u5982\u679c\u8fd9\u8bfb\u8d77\u6765\u5f88\u6655\u90a3\u4e48\u53ef\u4ee5\u591a\u8bfb\u51e0\u904d\u3002\u4f60\u4e0d\u80fd\u4ec5\u662f\u779f\u4e00\u773c\u5c31\u7ee7\u7eed\u5f80\u4e0b\u8bfb\u3002\u7f29\u653e\u548c\u504f\u79fb\u7684\u6982\u5ff5\u88ab\u65e0\u9650\u6b21\u7684\u53cd\u590d\u4f7f\u7528\uff0c\u4e0d\u4ec5\u5728SC\u4e2d\uff0c\u800c\u4e14\u8fd8\u5728\u5176\u4ed6\u5408\u6210\u7a0b\u5e8f\u4e2d\u3002<\/p>\n
\u4e00\u4e2a\u5b66\u751f\u53d1\u73b0\u5982\u4e0b\u7406\u89e3\u7f29\u653e\u662f\u5f88\u6709\u5e2e\u52a9\u7684\uff1a<\/p>\n
\u5bf9\u4e8e\u9ed8\u8ba4\u8303\u56f4\u662f1\u5230-1\u7684Ugen\uff1a
\n– add \u662f\u8303\u56f4\u5185\u7684\u4e2d\u5fc3\u503c\u3002
\n– mul \u662f \u9ad8\u4e8e\u3001\u4f4e\u4e8e \u4e2d\u5fc3\u7684\u603b\u91cf\uff08\u5e76\u975e\u4e8c\u8005\u4e4b\u548c\uff0c\u4e8c\u8005\u4e4b\u548c\u662f\u8303\u56f4\uff09\u3002
\n– \u6700\u4f4e\u503c\u662f add \u51cf\u53bb mul\u3002
\n– \u6700\u9ad8\u503c\u662f add \u52a0\u4e0a mul\u3002
\n– \u8303\u56f4\u662f mul \u4e58\u4ee52\u3002<\/p>\n
\u5bf9\u4e8e\u9ed8\u8ba4\u8303\u56f4\u662f0\u52301\u7684Ugen\uff1a
\n– add \u662f\u8303\u56f4\u7684\u4f4e\u7aef\uff08low end\uff09
\n– mul \u662f\u4f4e\u7aef\u4e4b\u4e0a\u7684\u5dee\u503c\u3002
\n– mul \u52a0\u4e0a add \u662f\u8303\u56f4\u7684\u9ad8\u70b9\u3002
\n– mul \u5373\u8303\u56f4\u3002<\/p>\n
\u4e0b\u8fb9\u662f\u53ef\u4ee5\u5e2e\u4f60\u505a\u8fd9\u4e2a\u8ba1\u7b97\u7684\u6d88\u606f\u3002\u5b83\u88ab\u79f0\u4e3a range<\/em>\uff08\u8303\u56f4\uff09\uff0c\u5b83\u53ef\u4ee5\u8f6c\u6362\u4e00\u4e2a\u503c\u7684\u8303\u56f4\u5230\u53e6\u4e00\u4e2a\u3002\u5f15\u6570\u5373\u9ad8\u548c\u4f4e\u7684\u8303\u56f4\u3002\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\uff0c\u5fc3\u7b97\u4e5f\u5f88\u7b80\u5355\u3002<\/p>\n
11.5. \u6620\u5c04\u4e00\u4e2a\u8303\u56f4<\/strong><\/p>\n
{\r\nSinOsc.ar(\r\n           SinOsc.kr(4).range(300, 500)\r\n       )\r\n}.play(s)<\/pre>\n
\u6211\u53cd\u590d\u91cd\u590d\u7b2c\u4e00\u4e2apatch\u4f5c\u4e3a mul \u548c add \u7684\u4f8b\u5b50\uff0c\u4f46\u8fd9\u6b21\u62c6\u5206\u5f00\u56e0\u6b64\u4f60\u53ef\u4ee5\u770b\u5230\u7ec4\u4ef6\u3002\u7b2c\u4e00\u884c\u7ed8\u5236\u4e86 LFNoise0<\/em> \u7684\u6ce2\u5f62\u3002\u6211\u4eec\u770b\u5230\u5b83\u662f\u968f\u673a\u7684\u9636\u68af\u566a\u97f3\u3002\u7528\u9f20\u6807\u5728plot\u7a97\u53e3\u7684\u9636\u68af\u4e0a\u70b9\u70b9\u4ee5\u8bc1\u660e\u5b83\u4eec\u5168\u90fd\u662f1\u5230-1\u7684\u503c\u3002\u7b2c\u4e8c\u884c\u6f14\u594f\u8fd9\u4e2apatch\u3002\u5b83\u542c\u4e0a\u53bb\u5e94\u8be5\u7c7b\u4f3c\u4f4e\u9891\u566a\u97f3\u3002\u4e0b\u4e00\u884c\u662f\u504f\u79fb1000\u7f29\u653e400\u540e\u7684\u540c\u4e00patch\u56fe\u793a\u3002\u5b83\u4e0e\u7b2c\u4e00\u4e2a\u56fe\u793a\u770b\u8d77\u6765\u7c7b\u4f3c\uff0c\u4f46\u8fd9\u6b21\u7684\u503c\u6709\u66f4\u5e7f\u7684\u5206\u5e03\u3002\u7528\u9f20\u6807\u5728plot\u7a97\u53e3\u7684\u9636\u68af\u4e0a\u70b9\u70b9\u4ee5\u8bc1\u660e\u5b83\u4eec\u5168\u90fd\u662f600\uff081000-400\uff09\u52301400\uff081000+400\uff09\u7684\u503c\u3002\u8fd9\u4e2a\u8303\u56f4\u5bf9\u632f\u5e45\u6ca1\u7528\uff0c\u56e0\u4e3a\u6211\u4eec\u7684\u626c\u58f0\u5668\u4ec5\u80fd\u4ece-1\u8fd0\u52a8\u52301\uff0c\u4f46600\u52301400\u7684\u8303\u56f4\u53ef\u4ee5\u88ab\u62ff\u7ed9\u9891\u7387\u7528\u3002patch\u7684\u6700\u540e\u4e00\u7248\u4fbf\u5c06 LFNoise0<\/em> \u653e\u5230\u4e86 SinOsc<\/em> \u9891\u7387\u7684\u4f4d\u7f6e\u3002\u90a3\u4e48 LFNoise0 <\/em>\u591a\u4e45\u4f20\u9012\u4e00\u4e2a\u65b0\u503c\u7ed9 SinOsc<\/em> \u5462\uff1fLFNoise0 <\/em>\u5728\u5de6\u58f0\u9053\u9891\u7387\u4e3a10 \u53f3\u58f0\u9053\u9891\u7387\u4e3a15\uff0c\u56e0\u6b64\u8fd9\u4e5f\u662f\u5728\u6bcf\u4e2a\u58f0\u9053\u5185\u79fb\u52a8\u5230\u4e00\u4e2a\u65b0\u503c\u6216\u65b0\u7684\u97f3\u9ad8\u7684\u6bd4\u7387\u3002<\/p>\n
11.6. \u7b2c\u4e00\u4e2a\u5c55\u793a mul \u548c add \u7684\u4f8b\u5b50<\/strong><\/p>\n
{LFNoise0.ar(2000)}.plot<\/pre>\n
{LFNoise0.ar(2000)}.play<\/pre>\n
{LFNoise0.ar(2000, mul: 400, add: 1000)}.plot<\/pre>\n
{SinOsc.ar(LFNoise0.ar([10, 15], mul: 400, add: 800), 0, 0.3)}.play;<\/pre>\n
\u7ec3\u4e60<\/h3>\n
\u8fd9\u4e2a\u7ec3\u4e60\u5c55\u793a\u4e86\u53d8\u91cf\u662f\u5982\u4f55\u88ab\u4f7f\u7528\u7684\uff0c\u4ee5\u53ca\u4e00\u4e2aUgen\u5982\u4f55\u53ef\u4ee5\u5728\u88ab\u504f\u79fb\u548c\u7f29\u653e\u5230\u9002\u4e8e\u7279\u6b8a\u63a7\u5236\u7684\u65b9\u5f0f\u3002\u8fd9\u4e2apatch\u752820\u6761\u6b63\u5f26\u6ce2\u5851\u9020\u4e00\u4e2a\u5355\u72ec\u7684\u58f0\u97f3\u3002\u5982\u679c\u6ca1\u6709\u53d8\u91cf fundamental<\/em>\uff0c\u4f60\u5c06\u4e0d\u5f97\u4e0d\u4e3a\u6bcf\u4e2a\u6ce2\u8f93\u5165\u9891\u7387\u3002\u4f46\u8fd9\u4e2a\u53d8\u91cf\u5374\u5141\u8bb8\u4f60\u751f\u6210\u57fa\u4e8e\u4e00\u4e2a\u9891\u7387\u7684\u9012\u589e\u503c\u3002\u8bd5\u7740\u5c06\u5b83\u7684\u503c\u572810\u5230300\u7684\u8303\u56f4\u5185\u6539\u53d8\u3002\u540c\u6837\u8bd5\u7740\u6539\u53d8\u6cdb\u97f3\uff08partial\uff09\u7684\u6570\u91cf\u3002\u8fd9\u4e2apatch\u540c\u6837\u4f7f\u7528\u4e86\u4e00\u4e2a\u5f15\u6570 i\uff0c\u5b83\u4e0e\u53d8\u91cf\u7c7b\u4f3c\u3002\u5b83\u8ba1\u6570\u6bcf\u4e2a\u548c\u58f0\/\u8c10\u6ce2\uff08harmonic\uff09\u3002\u8981\u5c06\u6bcf\u4e2a\u95ea\u52a8\uff08flashing\uff09\u8c10\u6ce2\u7684\u901f\u5ea6\u4e0e\u5176\u6570\u5b57\u76f8\u8fde\uff0c\u5c1d\u8bd5\u5c06LFNoise1 (6) \u7b2c\u4e00\u5f15\u6570\u6362\u5230(i + 1)\u3002\u7ed3\u679c\u5c06\u662f\u5feb\u901f\u95ea\u52a8\u7684\u9ad8\u5c42\u8c10\u6ce2\u4ee5\u53ca\u6162\u901f\u95ea\u70c1\u7387\u7684\u4f4e\u5c42\u8c10\u6ce2\u3002\u8fd9\u662f James \u5199\u7684\uff0c\u53ea\u662f\u4f5c\u4e3a\u4e00\u4e2a\u4f8b\u5b50\uff0c\u88ab\u65e9\u671f\u7248\u672c\u7684SC\u6536\u5f55\u3002\u8fd9\u662f\u6211\u7b2c\u4e00\u6b21\u628aSC\u4f5c\u73a9\u5177\u65f6\u5438\u5f15\u6211\u7684\u5f88\u591a\u4e2a\u4f8b\u5b50\u5176\u4e2d\u4e4b\u4e00\u3002<\/p>\n
\u7b2c\u4e8c\u4f8b\u540c\u6837\u63cf\u8ff0\u4e86\u4e00\u4e2a\u53d8\u91cf\u5982\u4f55\u88ab\u7528\u4e8e\u8fde\u63a5\u4e24\u4e2a\u53c2\u6570\uff1a\u9891\u7387\u548c\u8870\u51cf\u3002\u6bcf\u6761\u6b63\u5f26\u6ce2\u90fd\u5177\u5907\u4e00\u4e2a\u8870\u51cf\u65f6\u95f4\u7684\u5305\u7edc\uff08\u4e0b\u4e00\u7ae0\u4f1a\u8bb2\uff09\u3002\u4e00\u4e2a\u968f\u673a\u9891\u7387\u88ab\u6311\u51fa\uff0c\u7136\u540e\u90a3\u4e2a\u9891\u7387\u7684\u8870\u51cf\u88ab\u8ba1\u7b97\u4e3a\u9891\u7387\u7684\u51fd\u6570\uff0c\u6bd4\u5982\u9ad8\u97f3\u8870\u51cf\u77ed\uff0c\u4f4e\u97f3\u8870\u51cf\u957f\u3002<\/p>\n
11.7.\t \u8303\u4f8b\u6587\u4ef6\u5939\u5185\u7684\u8c10\u6ce2\u6f2b\u6e38\uff08harmonic swimming\uff09, \u53d8\u91cf\u8870\u51cf\u94c3\u97f3<\/strong><\/p>\n
\/\/ \u53d6\u6d88\u6ce8\u91ca\u90e8\u5206\u505a\u53d8\u5316\r\n(\r\n\/\/ \u8c10\u6ce2\u6f2b\u6e38 \r\nplay({\r\n     var fundamental, partials, out, offset; \r\n     fundamental = 100;\t\/\/ \u57fa\u7840\u9891\u7387\r\n     partials = 20;\t\/\/ \u6bcf\u8f68\u6cdb\u97f3\u7684\u6570\u91cf\r\n     out = 0.0;\t\/\/ start of oscil daisy chain \r\n     offset = SinOsc.kr(1\/60, 0.5pi, mul: 0.03, add: 0.01); \r\n     partials.do({ arg i; var p;\r\n          p = fundamental * (i+1);\t\/\/ \u6cdb\u97f3\u7684\u9891\u7387 \r\n          \/\/ p = exprand(20, 3000); \/\/ \u53d8\u5316 \r\n          out = FSinOsc.ar(\r\n                     p,\r\n                     0,\r\n                     max(0,\t                 \/\/ \u5c06\u8d1f\u7684\u632f\u5e45\u8f6c\u6362\u52300\r\n                            LFNoise1.kr(\r\n                                  6 + [4.0.rand2, 4.0.rand2],\t  \/\/ \u632f\u5e45\u7387\r\n                                  0.02,                      \/\/ \u632f\u5e45\u7f29\u653e\r\n                                  offset                     \/\/ \u632f\u5e45\u504f\u79fb\r\n                            )\r\n                     ),\r\n                    out\r\n           )\r\n      });\r\n      out\r\n\/\/ * EnvGen.kr(Env.perc(0, 4), Impulse.kr(1\/4)) \/\/ \u53d8\u5316\r\n})\r\n)<\/pre>\n
\/\/ \u7528\u4e00\u4e2a\u53d8\u91cf\u5c06\u8870\u51cf\u7387\u4e0e\u9891\u7387\u76f8\u8fde\u3002 (\u4f4e\u9891; \u957f\u8870\u51cf. \u9ad8\u9891; \u77ed\u8870\u51cf.)\r\n(\r\n{\r\nMix.fill(15,\r\n{\r\nvar freq; \r\nfreq = exprand(100, 3000);\r\n\tPan2.ar(\r\n\t\tSinOsc.ar(\r\n\t\t\tfreq * LFNoise1.kr(1\/6, 0.4, 1),\r\n\t\t\tmul: EnvGen.kr(\r\n\t\t\t\tEnv.perc(0, (freq**(-0.7))*100), Dust.kr(1\/5))\r\n\t\t), LFNoise1.kr(1\/8)\r\n\t)\r\n})*0.3\r\n}.play\r\n)<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u53d8\u91cf\u548c\u6ce8\u91ca \u5b9a\u4e49\u548c\u4f7f\u7528\u4f60\u81ea\u5df1\u7684\u5c5e\u4e8e\u548c\u51fd\u6570\u5728\u4ee3\u7801\u4e2d\u5f88\u5e38\u89c1\u3002\u53d8\u91cf\u5c31\u4e3a\u6b64\u76ee\u7684\u800c\u751f\u3002\u8bb0\u4f4f\u53d8\u91cf\u540d\u53ef\u4ee5\u662f\u4efb\u4f55\u4e1c\u897f\uff0c\u4f46\u5fc5\u987b\u4ee5\u5c0f\u5199\u5b57\u6bcd\uff08\u6570\u5b57\u4e0d\u884c\uff09\u5f00\u5934\u5e76\u4e14\u662f\u8fde\u7eed\u7684\u3002\u4f7f\u7528\u9690\u79d8\u7684\u540d\u5b57\u6bd4\u5982 tri\uff0cbeg\uff0cpfun\uff0cfreq \u751a\u81f3\u5355\u5b57\u6bcd\u6bd4\u5982 a\uff0cb\uff0cc \u66f4\u5438\u5f15\u4eba\u3002\u66f4\u5177\u4f53\u7684\u540d\u5b57\u867d\u7136\u5199\u8d77\u6765\u8017\u65f6\u66f4\u591a\u4f46\u957f\u8fdc\u6765\u770b\uff0c\u8fd9\u6837\u7684\u505a\u6cd5\u66f4\u597d\uff1afirstPitch, legalDurations, maximumAttack \u7b49\u7b49\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[72],"class_list":["post-1176","post","type-post","status-publish","format-standard","hentry","category-supercollider3","tag-sc"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/1176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1176"}],"version-history":[{"count":1,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/1176\/revisions"}],"predecessor-version":[{"id":1180,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/1176\/revisions\/1180"}],"wp:attachment":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}