{"id":130458,"date":"2024-03-25T14:52:00","date_gmt":"2024-03-25T05:52:00","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/web-audio-api%ef%bc%9a%e9%9f%b3%e5%a3%b0%e3%81%ae%e5%86%8d%e7%94%9f%e3%82%92%e5%86%8d%e9%96%8b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84\/"},"modified":"2024-04-05T22:13:07","modified_gmt":"2024-04-05T13:13:07","slug":"web-audio-api%ef%bc%9a%e9%9f%b3%e5%a3%b0%e3%81%ae%e5%86%8d%e7%94%9f%e3%82%92%e5%86%8d%e9%96%8b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/web-audio-api%ef%bc%9a%e9%9f%b3%e5%a3%b0%e3%81%ae%e5%86%8d%e7%94%9f%e3%82%92%e5%86%8d%e9%96%8b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84\/","title":{"rendered":"Web Audio API\uff1a\u97f3\u58f0\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b?"},"content":{"rendered":"

Web Audio API\u306estart()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u97f3\u3092\u518d\u958b\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

\u6700\u521d\u306bAudioContext\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210<\/p>\n

var<\/span> audioContext = new<\/span> AudioContext<\/span>();\r\n<\/code><\/pre>\n
\u6b21\u306b\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u3001AudioBufferSourceNode\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
var<\/span> audioBufferSourceNode = audioContext.createBufferSource<\/span>();\r\naudioBufferSourceNode.loop<\/span> = false<\/span>; \/\/ \u7981\u7528\u5faa\u73af\u64ad\u653e<\/span>\r\n<\/code><\/pre>\n
\u6b21\u306b\u3001fetch()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u30ed\u30fc\u30c9\u3057\u307e\u3059<\/p>\n
fetch<\/span>('audio.mp3'<\/span>)\r\n.then<\/span>(response<\/span> =><\/span> response.arrayBuffer<\/span>())\r\n.then<\/span>(arrayBuffer<\/span> =><\/span> audioContext.decodeAudioData<\/span>(arrayBuffer))\r\n.then<\/span>(audioBuffer<\/span> =><\/span> {\r\naudioBufferSourceNode.buffer<\/span> = audioBuffer;\r\naudioBufferSourceNode.connect<\/span>(audioContext.destination<\/span>);\r\n});\r\n<\/code><\/pre>\n
\u6700\u5f8c\u306b\u3001start()\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u97f3\u58f0\u3092\u518d\u751f\u3057\u307e\u3059\u3002<\/p>\n
audioBufferSourceNode.start<\/span>(0<\/span>);\r\n<\/code><\/pre>\n
\u30b5\u30a6\u30f3\u30c9\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3001start()\u30e1\u30bd\u30c3\u30c9\u3092\u3082\u3046\u4e00\u5ea6\u547c\u3073\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
audioBufferSourceNode.start<\/span>(0<\/span>);\r\n<\/code><\/pre>\n
\u3053\u306e\u65b9\u6cd5\u306b\u3088\u3063\u3066\u3001start()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u305f\u3073\u306b\u3001\u97f3\u306f\u6700\u521d\u306b\u623b\u3063\u3066\u518d\u751f\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Web Audio API\u306estart()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u97f3\u3092\u518d\u958b\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 \u6700\u521d\u306bAudioContext\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210 var audioContext = new AudioCo […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-130458","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nWeb Audio API\uff1a\u97f3\u58f0\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/web-audio-api\uff1a\u97f3\u58f0\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Web Audio API\uff1a\u97f3\u58f0\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b?\" \/>\n<meta property=\"og:description\" content=\"Web Audio API\u306estart()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u97f3\u3092\u518d\u958b\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 \u6700\u521d\u306bAudioContext\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210 var audioContext = new AudioCo […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/web-audio-api\uff1a\u97f3\u58f0\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-25T05:52:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-05T13:13:07+00:00\" \/>\n<meta name=\"author\" content=\"\u590f\u6a39, \u98a8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u590f\u6a39, \u98a8\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/web-audio-api%ef%bc%9a%e9%9f%b3%e5%a3%b0%e3%81%ae%e5%86%8d%e7%94%9f%e3%82%92%e5%86%8d%e9%96%8b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84\/\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/web-audio-api%ef%bc%9a%e9%9f%b3%e5%a3%b0%e3%81%ae%e5%86%8d%e7%94%9f%e3%82%92%e5%86%8d%e9%96%8b%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84\/\",\"name\":\"Web Audio API\uff1a\u97f3\u58f0\u306e\u518d\u751f\u3092\u518d\u958b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b? 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