{"id":551,"date":"2009-10-21T17:22:08","date_gmt":"2009-10-21T09:22:08","guid":{"rendered":"http:\/\/test999.eblhost.com\/blog\/?p=551"},"modified":"2010-02-11T10:42:34","modified_gmt":"2010-02-11T02:42:34","slug":"minim%ef%bc%9a%e5%bf%ab%e9%80%9f%e5%85%a5%e9%97%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/learn.travelchinawith.me\/?p=551","title":{"rendered":"Minim\uff1a\u5feb\u901f\u5165\u95e8\u6307\u5357"},"content":{"rendered":"<p>\u6b32\u5f00\u59cb\u4f7f\u7528Minim\uff0c\u9996\u5148\u4f60\u5f97\u5efa\u7acb\u4e00\u4e2aMinim\u5bf9\u8c61\uff0c\u8fd9\u6837\u4f60\u4fbf\u80fd\u8f7d\u5165\u97f3\u9891\u6587\u4ef6\u6216\u8005\u5efa\u7acb\u58f0\u97f3\u8f93\u5165\u4e0e\u8f93\u51fa\u3002\u800c\u540e\uff0c\u5728\u4f60\u9000\u51fa\u7a0b\u5e8f\u524d\uff0c\u4f60\u5fc5\u987b\u5173\u95ed\u4f60\u4eceMinim\u83b7\u5f97\u7684\u6240\u6709I\/O\u7c7b\u7136\u540e\u5173\u95ed\u4f60\u7684Minim\u8303\u672c\u3002\u97f3\u9891\u8f93\u5165\/\u8f93\u51fa\u7c7b\u5305\u62ecAudioPlayer, AudioSample, AudioSnippet, AudioInput, \u548c AudioOutput\u3002\u8fbe\u5230\u8fd9\u4e2a\u76ee\u7684\u7684\u4e00\u4e2a\u5f88\u597d\u7684\u65b9\u5f0f\u5c31\u662f\u5728\u4f60\u5173\u95ed\u6240\u6709\u97f3\u9891\u7c7b\u7684\u4f4d\u7f6e\u5b9a\u4e49\u4e00\u4e2a\u505c\u6b62\uff08stop\uff09\u65b9\u6cd5\uff08method\uff09\u3002\u4ee5\u4e0b\u662f\u4ee5\u4e0a\u51e0\u70b9\u7684\u4e00\u4e2a\u8303\u4f8b\uff08\u90e8\u5206\uff09\uff1a<\/p>\n<pre class=\"brush:processing\">Minim minim;\r\nAudioPlayer player;\r\nAudioInput input;\r\n\r\nvoid setup()\r\n{\r\n  size(100, 100);\r\n\r\n  minim = new Minim(this);\r\n  player = minim.loadFile(\"song.mp3\");\r\n  input = minim.getLineIn();\r\n}\r\n\r\nvoid draw()\r\n{\r\n  \/\/ \u505a\u4f60\u60f3\u505a\u7684\r\n}\r\n\r\nvoid stop()\r\n{\r\n  \/\/ \u4f60\u4eceMinim.loadFile()\u83b7\u5f97\u7684\u97f3\u9891\u64ad\u653e\u5668\r\n  player.close();\r\n  \/\/ \u4f60\u4eceMinim.getLineIn()\u83b7\u5f97\u7684\u97f3\u9891\u8f93\u5165\r\n  input.close();\r\n  minim.stop();\r\n\r\n  \/\/ \u8fd9\u4e9b\u79f0\u4f5c\u505c\u6b62\u65b9\u6cd5\uff08stop method\uff09 \r\n  \/\/ you are overriding by defining your own\r\n  \/\/ \u5b83\u5fc5\u987b\u88ab\u547c\u53eb\u7528\u4ee5\u5b8c\u6210\u4f60\u7684\u7a0b\u5e38\u89c4\u7684\u6e05\u7406\u5de5\u4f5c \r\n  super.stop();\r\n}<\/pre>\n<p>Ess\u53caSonia\u7684\u7528\u6237\u5e94\u5f53\u5bf9\u8fd9\u4e9b\u534f\u5b9a\u975e\u5e38\u719f\u6089\u3002\u505a\u6240\u6709\u8fd9\u4e9b\u662f\u56e0\u4e3a\u5168\u90e8\u97f3\u9891\u8f93\u5165\/\u8f93\u51fa\u90fd\u5728\u72ec\u7acb\u7684\u7ebf\u8def\u5de5\u4f5c\uff0c\u5e76\u4e14\u4ed6\u4eec\u5fc5\u987b\u88ab\u5141\u8bb8\u4ee5\u5e38\u89c4\u7684\u65b9\u5f0f\u7ed3\u675f\u3002\u4f60\u540c\u6837\u53ef\u4ee5\u5728\u6267\u884c\u4f60\u7a0b\u5e8f\u7684\u65f6\u5019\u5173\u95ed\u4e00\u4e2a\u97f3\u9891\u7c7b\u4ee5\u91ca\u653e\u5b83\u7684\u8d44\u6e90\u3002<\/p>\n<p><!--more--><\/p>\n<p><strong>\u64ad\u653e\u4e00\u4e2a\u97f3\u9891\u6587\u4ef6<\/strong><\/p>\n<p>\u5199Minim\u4e00\u4e2a\u6700\u4e3b\u8981\u7684\u52a8\u529b\u6765\u6e90\u4e8e\u6ca1\u6709\u54ea\u4e2aProcessing\u7684\u5e93\u53ef\u4ee5\u652f\u6301\u97f3\u9891\u6587\u4ef6\u7acb\u4f53\u58f0\u56de\u653e\u3002\u800c\u5728Minim\u91cc\u8fb9\uff0c\u64ad\u653e\u4e00\u4e2a\u97f3\u9891\u6587\u4ef6\u5c06\u4e0d\u662f\u4e00\u822c\u7684\u7b80\u5355\u3002\u4ec5\u9700\u5c06\u4f60\u7684\u97f3\u9891\u6587\u4ef6\u653e\u5230sketch\u6587\u4ef6\u5939\u7684data\u6587\u4ef6\u5939\u5185\uff0c\u7136\u540e\u8fd0\u884c\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre class=\"brush:processing\">import ddf.minim.*;\r\n\r\nMinim minim;\r\nAudioPlayer song;\r\n\r\nvoid setup()\r\n{\r\n  size(100, 100);\r\n\r\n  minim = new Minim(this);\r\n\r\n  \/\/ \u8fd9\u5c06\u8f7d\u5165data\u6587\u4ef6\u5939\u5185\u7684\u6587\u4ef6mysong.wav\r\n  song = minim.loadFile(\"mysong.wav\");\r\n  song.play();\r\n}\r\n\r\nvoid draw()\r\n{\r\n  background(0);\r\n}\r\n\r\nvoid stop()\r\n{\r\n  song.close();\r\n  minim.stop();\r\n\r\n  super.stop();<\/pre>\n<p>Minim\u53ef\u4ee5\u64ad\u653e\u4e00\u5207\u5178\u578b\u7684\u672a\u538b\u7f29\u7684\u97f3\u9891\u6863\uff0c\u5982WAV, AIFF, \u548cAU\u3002\u901a\u8fc7<a href=\"http:\/\/www.javazoom.net\/mp3spi\/about.html\" target=\"_blank\">Javazoom\u7684MP3SPI<\/a>\u7684\u652f\u6301\uff0c\u5b83\u4e5f\u5177\u5907\u4e86MP3\u6587\u4ef6\u7684\u64ad\u653e\u529f\u80fd\u3002<\/p>\n<p><strong>\u627e\u56deMeta\u6570\u636e<\/strong><\/p>\n<p>Meta\u6570\u636e\u662f\u4e00\u4e2a\u6587\u4ef6\u7684\u4fe1\u606f\uff0c\u4e0e\u6587\u4ef6\u7684\u5b9e\u9645\u5185\u5bb9\u4e0d\u540c\u3002\u4f60\u53ef\u4ee5\u5728\u5c06\u6587\u4ef6\u8f7d\u5165AudioPlayer\u4e4b\u540e\u83b7\u53d6\u4e00\u4e2a\u6587\u4ef6\u7684meta\u6570\u636e\u3002\u4f60\u8fd9\u4e48\u505a\u6700\u5927\u7684\u539f\u56e0\u53ef\u80fd\u662f\u83b7\u5f97\u6587\u4ef6\u7684ID3\u6807\u7b7e\u4fe1\u606f\u3002\u4ee5\u4e0b\u4ee3\u7801\u80fd\u66ff\u4f60\u505a\u5230\u8fd9\u70b9\uff1a<\/p>\n<pre class=\"brush:processing\">import ddf.minim.*;\r\n\r\nMinim minim;\r\nAudioPlayer groove;\r\nAudioMetaData meta;\r\n\r\nvoid setup()\r\n{\r\n  size(512, 256, P3D);\r\n\r\n  minim = new Minim(this);\r\n  \/\/ groove.mp3\u5e94\u4f4d\u4e8edata\u6587\u4ef6\u5939\u4e0b\r\n  groove = minim.loadFile(\"groove.mp3\");\r\n  meta = groove.getMetaData();\r\n\r\n  \/\/ serif.vlw\u5e94\u4f4d\u4e8edata\u6587\u4ef6\u5939\u4e0b\uff0cvlw\u662fp5\u5b57\u4f53\u6587\u4ef6\u5e76\u7531p5\u672c\u8eab\u521b\u5efa\r\n  textMode(SCREEN);\r\n}\r\n\r\nint ys = 15;\r\nint yi = 15;\r\n\r\nvoid draw()\r\n{\r\n  background(0);\r\n  int y = ys;\r\n  text(\"File Name: \" + meta.fileName(), 5, y);\r\n  text(\"Length (in milliseconds): \" + meta.length(), 5, y+=yi);\r\n  text(\"Title: \" + meta.title(), 5, y+=yi);\r\n  text(\"Author: \" + meta.author(), 5, y+=yi);\r\n  text(\"Album: \" + meta.album(), 5, y+=yi);\r\n  text(\"Date: \" + meta.date(), 5, y+=yi);\r\n  text(\"Comment: \" + meta.comment(), 5, y+=yi);\r\n  text(\"Track: \" + meta.track(), 5, y+=yi);\r\n  text(\"Genre: \" + meta.genre(), 5, y+=yi);\r\n  text(\"Copyright: \" + meta.copyright(), 5, y+=yi);\r\n  text(\"Disc: \" + meta.disc(), 5, y+=yi);\r\n  text(\"Composer: \" + meta.composer(), 5, y+=yi);\r\n  text(\"Orchestra: \" + meta.orchestra(), 5, y+=yi);\r\n  text(\"Publisher: \" + meta.publisher(), 5, y+=yi);\r\n  text(\"Encoded: \" + meta.encoded(), 5, y+=yi);\r\n}\r\n\r\nvoid stop()\r\n{\r\n  \/\/ \u65e5\u5b8c\u4e4b\u540e\uff0c\u6c38\u8fdc\u8bb0\u5f97\u5173\u95edMinim\u7684\u97f3\u9891\u7c7b\r\n  groove.close();\r\n  \/\/ \u6c38\u8fdc\u8bb0\u5f97\u5728\u9000\u51fa\u524d\u5173\u95edMinim\r\n  minim.stop();\r\n\r\n  super.stop();\r\n}<\/pre>\n<p><strong>\u7ed8\u5236\u4e00\u4e2a\u6ce2\u5f62<\/strong><\/p>\n<p>\u5f53\u7136\u4f60\u4f1a\u60f3\u8981\u5c06\u4f60\u6b63\u5728\u64ad\u653e\u7684\u58f0\u97f3\u7ed8\u5236\u51fa\u6765\u3002Minim\u4e2d\u6240\u6709\u64cd\u63a7\u97f3\u9891\u6570\u636e\u8f93\u5165\u8f93\u51fa\u7684\u7c7b\uff08\u9664\u4e86AudioSnippet\uff09\u90fd\u6765\u6e90\u4e8e\u4e00\u4e2a\u88ab\u79f0\u4e3aAudioSource\u7684\u7c7b\u3002\u8fd9\u4e2a\u7c7b\u5b9a\u4e49\u4e86\u4e09\u4e2aAudioBuffer\u6210\u5458\uff0c\u4ed6\u4eec\u5c06\u7ee7\u627f\u6269\u5c55AudioSource\u7684\u7c7b\u4eec\u3002\u56e0\u6b64\u4f60\u53ef\u4ee5\u901a\u8fc7AudioPlayer\u5bf9\u8c61\u8fdb\u5165\u7f13\u51b2\u5668\uff08buffer\uff09\u3002\u7f13\u51b2\u5668\u88ab\u547d\u540d\u4e3a\u5de6\u3001\u53f3\u548c\u6df7\u5408\u3002\u5b83\u4eec\u5206\u522b\u5305\u542b\u5de6\u901a\u9053\u3001\u53f3\u901a\u9053\u548c\u5de6\u53f3\u6df7\u5408\u901a\u9053\u3002\u5373\u4f7f\u4f60\u64ad\u653e\u7684\u97f3\u9891\u6587\u4ef6\u662f\u5355\u58f0\u9053\u7684\uff0c\u4e09\u4e2a\u7f13\u51b2\u5668\u4ecd\u7136\u53ef\u7528\u5e76\u4f1a\u8fd4\u56de\u503c\u3002\u5f53\u4f60\u5728\u64ad\u653e\u4e00\u4e2a\u5355\u58f0\u9053\u97f3\u9891\u6587\u4ef6\u7684\u65f6\u5019\uff0c\u4f60\u4f1a\u53d1\u73b0\u4e09\u4e2a\u7f13\u51b2\u5668\u5185\u90fd\u5305\u542b\u540c\u6837\u7684\u4fe1\u606f\u3002ok\uff0c\u8ba9\u6211\u4eec\u6765\u753b\u4e00\u4e2a\u6ce2\u5f62\u5427\uff0c\u6211\u4eec\u53ef\u4ee5\u5982\u6b64\u91cd\u5b9a\u4e49draw\u51fd\u6570\uff1a<\/p>\n<pre class=\"brush:processing\">void draw()\r\n{\r\n  background(0);\r\n  stroke(255);\r\n  \/\/ \u6211\u4eec\u901a\u8fc7\u5c06\u76f8\u90bb\u7684\u503c\u8fde\u6210\u4e00\u6761\u7ebf\u6765\u7ed8\u5236\u6ce2\u5f62\r\n  \/\/ \u6211\u4eec\u5c06\u6bcf\u4e00\u4e2a\u503c\u4e58\u4ee550 \r\n  \/\/ \u56e0\u4e3a\u7f13\u51b2\u5668\u91cc\u7684\u503c\u5df2\u7ecf\u8fc7\u6807\u51c6\u5316\r\n  \/\/ \u8fd9\u610f\u5473\u7740\u4ed6\u4eec\u7684\u503c\u662f\u4ece-1\u52301\u3002 \r\n  \/\/ \u5982\u679c\u6211\u4eec\u4e0d\u5c06\u4ed6\u4eec\u6269\u5927\r\n  \/\/ \u6211\u4eec\u7684\u6ce2\u5f62\u770b\u4e0a\u53bb\u5c06\u4f1a\u66f4\u50cf\u662f\u4e00\u6761\u76f4\u7ebf\u3002\r\n  for(int i = 0; i &lt; song.bufferSize() - 1; i++)\r\n  {\r\n    line(i, 50 + song.left.get(i)*50, i+1, 50 + song.left.get(i+1)*50);\r\n    line(i, 150 + song.right.get(i)*50, i+1, 150 + song.right.get(i+1)*50);\r\n  }\r\n}<\/pre>\n<p>\u8fd9\u6bb5\u7ed8\u5236\u4ee3\u7801\u5c06\u6301\u7eed\u8d77\u6548\uff0c\u65e0\u8bbasong\u7c7b\u7684\u8f93\u5165\u3001\u8f93\u51fa\u662f\u4ec0\u4e48\u7c7b\u578b\uff0c\u56e0\u4e3a\u4ed6\u4eec\u90fd\u6269\u5145\u4e86AudioSource\uff0c\u800cAudioSource\u63d0\u4f9b\u4e86\u7f13\u51b2\u5668\u3002\u6211\u4eec\u73b0\u5728\u78b0\u5230\u4e24\u4e2a\u95ee\u9898\uff0c\u8fd0\u884c\u7a97\u53e3\u4e3a100*100\uff0c\u592a\u5c0f\uff0c\u7136\u540e\u6211\u4eec\u8fd8\u4e0d\u77e5\u9053\u7f13\u51b2\u5668\u7684\u957f\u5ea6\uff08\u6bd4\u5982\u8bf4\uff0csong.bufferSize() \u8fd4\u56de\u4ec0\u4e48\u503c\uff09\u3002\u7b2c\u4e00\u4e2a\u95ee\u9898\u5f88\u5bb9\u6613\u89e3\u51b3\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u7a97\u53e3\u5c3a\u5bf8\u4e3a512*200\u3002\u81f3\u4e8e\u7b2c\u4e8c\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u547c\u53ebloadFile\u7684\u65f6\u5019\u5305\u542b\u6211\u4eec\u60f3\u8981\u7684\u7f13\u51b2\u5668\u7684\u957f\u5ea6\u3002\u56e0\u6b64\uff0c\u5728setup\u91cc\u5e94\u8be5\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre class=\"brush:processing\">void setup()\r\n{\r\n  size(512, 200);\r\n\r\n  minim = new Minim(this);\r\n\r\n  \/\/ \u6307\u5b9a512\u4e3a\u91c7\u6837\u7f13\u51b2\u5668sample buffers\uff09\u7684\u957f\u5ea6\r\n  \/\/ \u9ed8\u8ba4\u7f13\u51b2\u5668\u5927\u5c0f\u662f1024\r\n  song = minim.loadFile(\"mysong.wav\", 512);\r\n  song.play();\r\n}<\/pre>\n<p>\u8fd9\u4fdd\u8bc1\u4e86\u5728\u8367\u5e55\u5b9e\u65f6\u8f93\u51fa\u7f13\u51b2\u5668\u91cc\u7684\u503c\u7684\u65f6\u5019\u8ba9\u4ed6\u4eec\u4fdd\u6301\u7edf\u4e00\u3002\u5982\u679c\u4f60\u4e0d\u6307\u5b9a\u7f13\u51b2\u5668\u957f\u5ea6\uff0c\u52191024\u4e3a\u5176\u9ed8\u8ba4\u503c\u3002<\/p>\n<p><strong>\u7ed8\u5236\u4e00\u4e2a\u9891\u8c31<\/strong><\/p>\n<p>\u53e6\u5916\uff0c\u4f60\u53ef\u80fd\u8fd8\u60f3\u8981\u5728\u64ad\u653e\u4f60\u7684\u6b4c\u66f2\u7684\u65f6\u5019\u5206\u6790\u5b83\u4eec\u5e76\u501f\u6b64\u7ed8\u5236\u5176\u9891\u8c31\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2aFFT\u5bf9\u8c61\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u5982\u679c\u6211\u4eec\u5728\u6211\u4eec\u7684\u7a0b\u5e8f\u5185\u5305\u542b\u4e00\u4e2aFFT\u5bf9\u8c61\u5e76\u5728\u6ce2\u5f62\u80cc\u540e\u7a0d\u5fae\u6de1\u5316\u7684\u7ed8\u5236\u9891\u8c31\uff0c\u6211\u4eec\u7684\u7a0b\u5e8f\u770b\u8d77\u6765\u5c06\u50cf\u8fd9\u4e2a\u6837\u5b50\uff1a<\/p>\n<pre class=\"brush:processing\">import ddf.minim.*;\r\nimport ddf.minim.analysis.*;\r\n\r\nMinim minim;\r\nAudioPlayer song;\r\nFFT fft;\r\n\r\nvoid setup()\r\n{\r\n  size(512, 200);\r\n\r\n  \/\/ \u603b\u662f\u9996\u5148\u5f00\u542fMinim!\r\n  minim = new Minim(this);\r\n\/\/ \u6307\u5b9a512\u4e3a\u91c7\u6837\u7f13\u51b2\u5668sample buffers\uff09\u7684\u957f\u5ea6\r\n  \/\/ \u9ed8\u8ba4\u7f13\u51b2\u5668\u5927\u5c0f\u662f1024\r\nsong = minim.loadFile(\"mysong.wav\", 512);\r\nsong.play();\r\n\/\/ \u4e00\u4e2aFFT\u9700\u8981\u77e5\u9053\u5b83\u8981\u5206\u6790\u7684\u7f13\u51b2\u5668\u7684\u957f\u5ea6\r\n\/\/ \u540c\u65f6\u9700\u8981\u77e5\u9053\u5b83\u6b63\u5728\u5206\u6790\u7684\u97f3\u9891\u6587\u4ef6\u7684\u91c7\u6837\u7387\r\nfft = new FFT(song.bufferSize(), song.sampleRate());\r\n}\r\n\r\nvoid draw()\r\n{\r\nbackground(0);\r\n\/\/ \u9996\u5148\u5728song\u7684\u7f13\u51b2\u5668\u4e4b\u4e00\u524d\u7f6e\u4e00\u4e2afft\r\n\/\/ \u6211\u6b63\u4f7f\u7528\u7684\u662fmix\u7f13\u51b2\u5668\r\n\/\/ \u5f53\u7136\uff0c\u4f60\u53ef\u4ee5\u9009\u62e9\u4efb\u4f55\u4f60\u559c\u6b22\u7684\r\n fft.forward(song.mix);\r\n\r\nstroke(255, 0, 0, 128);\r\n\/\/ \u7528\u4e00\u7cfb\u5217\u5782\u76f4\u7ebf\u7ed8\u5236\u9891\u8c31\r\n\/\/ \u6211\u5c06getBand\u7684\u503c\u4e58\u4ee54 \r\n\/\/ \u8fd9\u6837\uff0c\u6211\u4eec\u5c06\u80fd\u66f4\u597d\u7684\u89c2\u6d4b\u9891\u8c31\r\nfor(int i = 0; i &lt; fft.specSize(); i++)\r\n{\r\nline(i, height, i, height - fft.getBand(i)*4);\r\n}\r\n\r\nstroke(255);\r\n\/\/ \u6211\u4eec\u901a\u8fc7\u5c06\u76f8\u90bb\u7684\u503c\u8fde\u6210\u4e00\u6761\u7ebf\u6765\u7ed8\u5236\u6ce2\u5f62\r\n  \/\/ \u6211\u4eec\u5c06\u6bcf\u4e00\u4e2a\u503c\u4e58\u4ee550 \r\n  \/\/ \u56e0\u4e3a\u7f13\u51b2\u5668\u91cc\u7684\u503c\u5df2\u7ecf\u8fc7\u6807\u51c6\u5316\r\n  \/\/ \u8fd9\u610f\u5473\u7740\u4ed6\u4eec\u7684\u503c\u662f\u4ece-1\u52301\u3002 \r\n  \/\/ \u5982\u679c\u6211\u4eec\u4e0d\u5c06\u4ed6\u4eec\u6269\u5927\r\n  \/\/ \u6211\u4eec\u7684\u6ce2\u5f62\u770b\u4e0a\u53bb\u5c06\u4f1a\u66f4\u50cf\u662f\u4e00\u6761\u76f4\u7ebf\u3002\r\nfor(int i = 0; i &lt; song.left.size() - 1; i++)\r\n{\r\nline(i, 50 + song.left.get(i)*50, i+1, 50 + song.left.get(i+1)*50);\r\nline(i, 150 + song.right.get(i)*50, i+1, 150 + song.right.get(i+1)*50);\r\n}\r\n}\r\n\r\nvoid stop()\r\n{\r\nsong.close();\r\nminim.stop();\r\n\r\nsuper.stop();\r\n}<\/pre>\n<p><strong>\u5408\u6210\u58f0\u97f3<\/strong><\/p>\n<p>\u6700\u540e\uff0c\u662f\u5173\u4e8eMinim\u5185\u53ef\u7528\u7684\u632f\u8361\u5668\u548c\u6ee4\u6ce2\u5668\u7c7b\u7684\u7b80\u4ecb\u3002\u5728\u5408\u6210\u58f0\u97f3\u4e4b\u524d\uff0c\u4f60\u9700\u8981\u95eeMinim\u8981\u4e00\u4e2aAudioOutput\uff1a<\/p>\n<pre class=\"brush:processing\">AudioOutput out = minim.getLineOut();<\/pre>\n<p>\u65e0\u5f15\u6570\u547c\u53ebgetLineOut\u5c06\u8fd4\u56de\u4e00\u4e2a\u7f13\u51b2\u5668\u5927\u5c0f\u4e3a1024\u3001\u6df1\u5ea616bit\u3001\u91c7\u6837\u738744100 Hz\u7684\u7acb\u4f53\u58f0\u7ebf\u6027\u8f93\u51fa\u3002\u4e24\u4ef6\u4e8b\u4f60\u53ef\u80fd\u4f1a\u8003\u8651\u5230\uff1a\u5982\u679c\u4f60\u9700\u8981\u5355\u58f0\u9053\u7ebf\u6027\u8f93\u51fa\u6216\u4e0d\u540c\u7684\u7f13\u51b2\u5668\u5927\u5c0f\uff0c\u4f60\u53ef\u4ee5\u8fd9\u6837\u547c\u53ebgetLineOut\uff1a<\/p>\n<pre class=\"brush:processing\">AudioOutput out = minim.getLineOut(Minim.MONO);<\/pre>\n<p>\u6216\u8005<\/p>\n<pre class=\"brush:processing\">AudioOutput out = minim.getLineOut(Minim.STEREO, 512);<\/pre>\n<p>\u8fd9\u91cc512\u662f\u4f60\u6240\u5e0c\u671b\u7684\u7f13\u51b2\u5668\u957f\u5ea6\u3002\u4e00\u65e6\u4f60\u6709\u4e86\u4e00\u4e2a\u97f3\u9891\u8f93\u51fa\uff08AudioOutput\uff09\uff0c\u4f60\u4fbf\u53ef\u4ee5\u5c06\u97f3\u9891\u4fe1\u53f7\uff08AudioSignals\uff09\u548c\u97f3\u9891\u6548\u679c\uff08AudioEffects\uff09\u9644\u52a0\u5176\u4e0a\u3002Minim\u4e3a\u4f60\u914d\u5907\u4e86\u4e3a\u6570\u4e0d\u591a\u7684\u51e0\u4e2a\u4f9b\u4f60\u4f7f\u7528\u3002ok\uff0c\u73b0\u5728\u6211\u4eec\u5c31\u5728\u97f3\u9891\u8f93\u51fa\u4e0a\u52a0\u4e00\u4e2a\u65b9\u6ce2\uff08SquareWave\uff09\u548c\u4f4e\u901a\u6ee4\u6ce2\u5668\uff08LowPassSP\uff09\u8bd5\u8bd5\uff1a<\/p>\n<pre class=\"brush:processing\">import ddf.minim.*;\r\nimport ddf.minim.signals.*;\r\nimport ddf.minim.effects.*;\r\n\r\nMinim minim;\r\nAudioOutput out;\r\nSquareWave square;\r\nLowPassSP   lowpass;\r\n\r\nvoid setup()\r\n{\r\n  size(512, 200);\r\n\r\n  minim = new Minim(this);\r\n\r\n  \/\/ \u83b7\u53d6\u4e00\u4e2a\u7f13\u51b2\u5668\u4e3a512\u7684\u7acb\u4f53\u58f0\u7ebf\u6027\u8f93\u51fa\r\n  out = minim.getLineOut(Minim.STEREO, 512);\r\n\r\n  \/\/ \u521b\u5efa\u4e00\u4e2a\u9891\u7387\u4e3a440 Hz\u7684\u65b9\u6ce2, \r\n  \/\/ \u632f\u5e45\u4e3a1\uff0c\u91c7\u6837\u7387\u4e3a44100 Hz\r\n  square = new SquareWave(440, 1, 44100);\r\n\r\n  \/\/ \u521b\u5efa\u4e00\u4e2a\u622a\u53d6\u9891\u7387\u4e3a200 Hz\u7684\u4f4e\u901a\u6ee4\u6ce2\u5668 \r\n  \/\/ \u91c7\u6837\u7387\u4e3a44100 Hz\r\n  lowpass = new LowPassSP(200, 44100);\r\n\r\n  \/\/ \u73b0\u5728\u6211\u4eec\u4fbf\u53ef\u5c06\u65b9\u6ce2\u548c\u6ee4\u6ce2\u5668\u642d\u8f7d\u5230\u6211\u4eec\u7684\u8f93\u51fa\u4e0a\r\n  out.addSignal(square);\r\n  out.addEffect(lowpass);\r\n}\r\n\r\nvoid draw()\r\n{\r\n  \/\/ \u4f60\u53ef\u80fd\u60f3\u8981\u5728\u8fd9\u91cc\u7ed8\u5236\u6ce2\u5f62\u6216\u505a\u5176\u4ed6\u4f60\u60f3\u5e72\u7684\u4e8b\r\n}\r\n\r\n\/\/ \u8fd9\u513f\u6211\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9759\u97f3\u7684\u65b9\u5f0f\r\n\/\/ \u56e0\u4e3a\uff0c\u8ba9\u6211\u4eec\u9762\u5bf9\u5b83\u5427\uff0c\u8fd9\u5e76\u975e\u4e00\u4e2a\u4ee4\u4eba\u6109\u60a6\u7684\u58f0\u97f3\r\nvoid keyPressed()\r\n{\r\n  if ( key == 'm' )\r\n  {\r\n    if ( out.isMuted() )\r\n    {\r\n      out.unmute();\r\n    }\r\n    else\r\n    {\r\n      out.mute();\r\n    }\r\n  }\r\n}\r\n\r\nvoid stop()\r\n{\r\n  out.close();\r\n  minim.stop();\r\n\r\n  super.stop();\r\n}<\/pre>\n<p>\u8fd9\u4fbf\u662f\u5feb\u901f\u4e0a\u624b\u6307\u5357\uff0c\u8fd9\u91cc\u5e76\u6ca1\u6709\u5217\u51fa\u6240\u6709Minim\u7684\u529f\u80fd\uff08\u5f53\u7136\u4ee5\u540e\u4f1a\uff09\u3002\u4f60\u53ef\u4ee5\u81ea\u884c\u9605\u8bfb<a href=\"http:\/\/code.compartmental.net\/minim\/javadoc\" target=\"_blank\">javadoc<\/a>\u6765\u4e86\u89e3\u6240\u6709\u7684API\u3002<br \/>\n\u53e6\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6d4f\u89c8<a href=\"http:\/\/code.compartmental.net\/minim\/examples\" target=\"_blank\">\u5728\u7ebf\u8303\u4f8b<\/a>\u6765\u4ece\u4e0d\u540c\u65b9\u9762\u4e86\u89e3Minim\u7684\u5168\u90e8\u529f\u80fd\u3002\u540c\u65f6\uff0c\u6240\u6709\u7684\u5728\u7ebf\u8303\u4f8b\u90fd\u5305\u542b\u5728\u5b8c\u6574\u7248\u672c\u7684Minim\u5e93\u5185\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7processing\u754c\u9762\u7684File &gt; Examples &gt; minim\u627e\u5230\u5e76\u6f14\u793a\u5b83\u4eec\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6b32\u5f00\u59cb\u4f7f\u7528Minim\uff0c\u9996\u5148\u4f60\u5f97\u5efa\u7acb\u4e00\u4e2aMinim\u5bf9\u8c61\uff0c\u8fd9\u6837\u4f60\u4fbf\u80fd\u8f7d\u5165\u97f3\u9891\u6587\u4ef6\u6216\u8005\u5efa\u7acb\u58f0\u97f3\u8f93\u5165\u4e0e\u8f93\u51fa\u3002\u800c\u540e\uff0c\u5728\u4f60\u9000\u51fa\u7a0b\u5e8f\u524d\uff0c\u4f60\u5fc5\u987b\u5173\u95ed\u4f60\u4eceMinim\u83b7\u5f97\u7684\u6240\u6709I\/O\u7c7b\u7136\u540e\u5173\u95ed\u4f60\u7684Minim\u8303\u672c\u3002\u97f3\u9891\u8f93\u5165\/\u8f93\u51fa\u7c7b\u5305\u62ecAudioPlayer, AudioSample, AudioSnippet, AudioInput, \u548c AudioOutput\u3002\u8fbe\u5230\u8fd9\u4e2a\u76ee\u7684\u7684\u4e00\u4e2a\u5f88\u597d\u7684\u65b9\u5f0f\u5c31\u662f\u5728\u4f60\u5173\u95ed\u6240\u6709\u97f3\u9891\u7c7b\u7684\u4f4d\u7f6e\u5b9a\u4e49\u4e00\u4e2a\u505c\u6b62\uff08stop\uff09\u65b9\u6cd5\uff08method\uff09\u3002\u4ee5\u4e0b\u662f\u4ee5\u4e0a\u51e0\u70b9\u7684\u4e00\u4e2a\u8303\u4f8b\uff08\u90e8\u5206\uff09\uff1a Minim minim; AudioPlayer player; AudioInput input; void setup() { size(100, 100); minim = new Minim(this); player = minim.loadFile(&#8220;song.mp3&#8221;); input = minim.getLineIn(); } void draw() { \/\/ \u505a\u4f60\u60f3\u505a\u7684 } void stop() { \/\/ \u4f60\u4eceMinim.loadFile()\u83b7\u5f97\u7684\u97f3\u9891\u64ad\u653e\u5668 player.close(); \/\/ \u4f60\u4eceMinim.getLineIn()\u83b7\u5f97\u7684\u97f3\u9891\u8f93\u5165 input.close(); minim.stop(); \/\/ \u8fd9\u4e9b\u79f0\u4f5c\u505c\u6b62\u65b9\u6cd5\uff08stop method\uff09 \/\/ you are overriding by defining your own [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[61],"class_list":["post-551","post","type-post","status-publish","format-standard","hentry","category-minim","tag-minim"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/551","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=551"}],"version-history":[{"count":14,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/551\/revisions"}],"predecessor-version":[{"id":970,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/551\/revisions\/970"}],"wp:attachment":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}