{"id":8769,"date":"2019-07-07T19:54:39","date_gmt":"2019-07-07T11:54:39","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8769"},"modified":"2020-11-20T14:42:14","modified_gmt":"2020-11-20T06:42:14","slug":"html-audio-api-guide","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2019\/07\/html-audio-api-guide\/","title":{"rendered":"HTML audio\u57fa\u7840API\u5b8c\u5168\u4f7f\u7528\u6307\u5357"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8769\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=8769<\/a><br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u5168\u6587\u8f6c\u8f7d\u5c31\u4e0d\u5fc5\u4e86\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u3002<br \/>\n<script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/201907-audio.jpg';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201907\/audio-cover.jpg\" width=\"484\" height=\"300\" class=\"alignright thumb clip size-medium\" alt=\"audio API\u5927\u5168\" \/><\/p>\n<p>\u672c\u6587\u4ecb\u7ecdHTML5 <code>&lt;audio&gt;<\/code>\u97f3\u9891\u5143\u7d20\u7684\u5c5e\u6027\uff0c\u65b9\u6cd5\uff0c\u4ee5\u53ca\u4e8b\u4ef6\u76f8\u5173\u7684API\u7684\u57fa\u672c\u4f7f\u7528\u3002<\/p>\n<p>\u672c\u6587\u5185\u5bb9\u5bf9\u4e8eHTML5 <code>&lt;video&gt;<\/code>\u89c6\u9891\u5143\u7d20\u540c\u6837\u53d7\u7528\u3002<\/p>\n<p>\u5185\u5bb9\u6709\u4e9b\u591a\uff0c\u5b8c\u6574\u9605\u8bfb\u9700\u8981\u70b9\u65f6\u95f4\uff0c\u4f46\u5f88\u5b9e\u7528\uff0c\u53ef\u4ee5\u5148\u9a6c\u540e\u770b\u3002<\/p>\n<h3>\u4e00\u3001audio\u4f7f\u7528\u57fa\u672c\u6848\u4f8b<\/h3>\n<pre>&lt;audio controls&gt;\r\n  &lt;source src=\"audiofile.mp3\" type=\"audio\/mpeg\"&gt;\r\n  &lt;source src=\"audiofile.ogg\" type=\"audio\/ogg\"&gt;\r\n  <span style=\"color:green;\">&lt;!-- \u5982\u679c\u6d4f\u89c8\u5668\u4e0d\u652f\u6301\uff0c\u5219\u4f1a\u5448\u73b0\u4e0b\u9762\u5185\u5bb9 --&gt;<\/span>\r\n  &lt;p&gt;\u4f60\u7684\u6d4f\u89c8\u5668\u4e0d\u652f\u6301HTML5\u97f3\u9891\uff0c\u4f60\u53ef\u4ee5&lt;a href=\"audiofile.mp3\"&gt;\u4e0b\u8f7d&lt;\/a&gt;\u8fd9\u4e2a\u97f3\u9891\u6587\u4ef6\u3002&lt;\/p&gt;\r\n&lt;\/audio&gt;<\/pre>\n<p>\u4e0a\u9762\u505a\u6cd5\u662f\u65e9\u4e9b\u5e74HTML5 <code>&lt;audio&gt;<\/code>\u5e38\u7528\u4ee3\u7801\uff0c\u56e0\u4e3a\u90a3\u65f6\u5019IE8\u8fd8\u662f\u5927\u5934\uff0c\u5404\u5927\u6d4f\u89c8\u5668\u5bf9\u5404\u7c7b\u97f3\u9891\u683c\u5f0f\u652f\u6301\u60c5\u51b5\u53c2\u5dee\u4e0d\u9f50\uff0c\u56e0\u6b64\uff0c\u624d\u501f\u52a9<code>&lt;source&gt;<\/code>\u5143\u7d20\u540c\u65f6\u5f15\u7528\u591a\u4e2a\u4e0d\u540c\u683c\u5f0f\u7684\u97f3\u9891\u6587\u4ef6\uff0c\u901a\u8fc7<code>type<\/code>\u5c5e\u6027\u6307\u5b9a<code>mime type<\/code>\u907f\u514d\u91cd\u590d\u52a0\u8f7d\u60c5\u51b5\u51fa\u73b0\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u4eca\u5df2\u7ecf\u4e0d\u9700\u8981\u8fd9\u4e48\u9ebb\u70e6\u4e86\u3002\u6211\u4eec\u76f4\u63a5\u4e0b\u9762\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<pre>&lt;audio src=\"audiofile.mp3\" controls&gt;&lt;\/audio&gt;<\/pre>\n<p>\u97f3\u9891\u6587\u4ef6\u5e38\u89c1\u4e0b\u97623\u79cd\u683c\u5f0f\uff0c.ogg, .wav\u548c.mp3\uff0c\u5176\u4e2d\uff0c.ogg Safari\u6d4f\u89c8\u5668\u4e0d\u652f\u6301\uff08\u76ee\u524d\u7248\u672c13\uff09\uff0cIE\u5230Edge16\u90fd\u4e0d\u652f\u6301\uff1b.wav\u5219\u662fIE-IE11\u4e0d\u652f\u6301\uff1b\u4f46\u662f.mp3 IE9+\u90fd\u652f\u6301\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5982\u679c\u4e0d\u60f3\u9ebb\u70e6\uff0c\u76f4\u63a5\u4e00\u4e2aMP3\u683c\u5f0f\u5c31\u597d\u4e86\uff0c\u7531\u4e8e\u5c31\u4e00\u79cd\u6587\u4ef6\u683c\u5f0f\uff0c\u56e0\u6b64type\u5c5e\u6027\u4e5f\u53ef\u4ee5\u4e0d\u7528\u8bbe\u7f6e\u3002<\/p>\n<p><span class=\"s\">\/\/zxx: \u4e5f\u53ef\u4ee5\u4f7f\u7528MP4\u89c6\u9891\u6587\u4ef6\uff0c\u56e0\u4e3aMP4\u89c6\u9891\u4e5f\u5305\u542bACC\u7f16\u7801\u97f3\u9891\uff0c\u4e0d\u8fc7\u5c31\u662f\u4f53\u79ef\u5927\u4e86\u5f88\u591a\uff0c\u4e0d\u5efa\u8bae\u8fd9\u4e48\u4f7f\u7528\u3002<\/span><\/p>\n<p><code>&lt;audio&gt;<\/code>\u5143\u7d20IE9\u6d4f\u89c8\u5668\u5c31\u5f00\u59cb\u652f\u6301\uff0c\u73b0\u572800\u540e\u90fd\u5feb20\u5c81\u4e86\uff0c\u4e5f\u4e0d\u9700\u8981\u4e3a\u4f4e\u7248\u672c\u6d4f\u89c8\u5668\u505a\u964d\u7ea7\u9002\u914d\u4e86\u3002\u56e0\u6b64\uff0c\u7b80\u7b80\u5355\u5355\u4e00\u4e2a<code>&lt;audio&gt;<\/code>\u5143\u7d20\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<h3>\u4e8c\u3001Audio HTML\u5c5e\u6027<\/h3>\n<p>\u4e0b\u9762\u770b\u4e0b<code>&lt;audio&gt;<\/code>\u5143\u7d20\u5c5e\u6027\u76f8\u5173\u7684\u4e00\u4e9b\u7ec6\u8282\u3002<\/p>\n<h4>autoplay<\/h4>\n<pre>&lt;audio src=\"audiofile.mp3\" <span style=\"color:#cd0000;\">autoplay<\/span>&gt;&lt;\/audio&gt;<\/pre>\n<p><code>autoplay<\/code>\u662f\u4e2a\u5e03\u5c14\u5c5e\u6027\u503c\uff0c\u8868\u793a\u58f0\u97f3\u662f\u5426\u81ea\u52a8\u64ad\u653e\uff0c\u9ed8\u8ba4\u4e0d\u81ea\u52a8\u64ad\u653e\u3002\u7136\u800c\uff0c\u968f\u7740\u6d4f\u89c8\u5668\u7684\u53d1\u5c55\uff0c\u8fd9\u4e2a\u5c5e\u6027\u53d8\u5f97\u9650\u5236\u8d8a\u6765\u8d8a\u591a\u3002\u9996\u5148\u5728\u79fb\u52a8\u7aef\uff0c<code>autoplay<\/code>\u81ea\u52a8\u64ad\u653e\u5df2\u7ecf\u88ab\u7981\u6b62\u4e86\uff0cPC\u7aef\u4e5f\u5df2\u7ecf\u7981\u6b62\uff0c18\u5e74\u7684\u65f6\u5019\uff0cChrome\u8fd9\u4e48\u505a\u4e86\uff0c\u7136\u540e\u88ab\u5f88\u591a\u5f00\u53d1\u8005\u6297\u8bae\uff0c\u540e\u6765\u53c8\u6062\u590dautoplay\uff08\u7ed9\u5927\u5bb6\u7f13\u51b2\u65f6\u95f4\uff09\uff0c\u73b0\u5728\u5df2\u7ecfChrome\u53c8\u4e0d\u652f\u6301\u81ea\u52a8\u64ad\u653e\u4e86\u3002<\/p>\n<p>\u539f\u56e0\u662f\u7f51\u9875\u5728\u6ca1\u6709\u8b66\u544a\u7684\u60c5\u51b5\u4e0b\u81ea\u53d1\u5730\u53d1\u51fa\u58f0\u97f3\uff0c\u53ef\u80fd\u4f1a\u8ba9\u7528\u6237\u4e0d\u6109\u5feb\uff0c\u4f53\u9a8c\u4e0d\u592a\u597d\u3002\u56e0\u6b64\uff0c\u6d4f\u89c8\u5668\u901a\u5e38\u53ea\u5141\u8bb8\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\u6210\u529f\u5730\u8fdb\u884c\u81ea\u52a8\u64ad\u653e\u3002<\/p>\n<p>\u5173\u4e8e\u66f4\u6df1\u5165\u7684autoplay\u7b56\u7565\u53ef\u4ee5\u53c2\u89c1MDN\u4e0a\u7684<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/Media\/Autoplay_guide\" rel=\"noopener nofollow\" target=\"_blank\">\u8fd9\u7bc7\u6587\u6863<\/a>\u3002<\/p>\n<p>\u4e0d\u8fc7\u6839\u636e\u6211\u81ea\u5df1\u7684\u4e00\u4e9b\u5b9e\u8df5\uff0c\u8d44\u6e90\u9759\u97f3\u6216\u8005\u89c6\u9891\u6ca1\u6709\u58f0\u97f3\u60c5\u51b5\u4e0b\uff0cautoplay\u5076\u5c14\u4e5f\u662f\u4f1a\u6267\u884c\u7684\uff0c\u4e0d\u8fc7\u90fd\u662f\u5076\u73b0\uff0c\u89e6\u53d1\u81ea\u52a8\u64ad\u653e\u539f\u56e0\u4e0d\u8be6\u3002<\/p>\n<h4>loop<\/h4>\n<pre>&lt;audio src=\"audiofile.mp3\" <span style=\"color:#cd0000;\">loop<\/span>&gt;&lt;\/audio&gt;<\/pre>\n<p><code>loop<\/code>\u662f\u4e2a\u5e03\u5c14\u5c5e\u6027\u503c\uff0c\u8868\u793a\u58f0\u97f3\u662f\u5426\u5faa\u73af\u64ad\u653e\uff0c\u9ed8\u8ba4\u4e0d\u5faa\u73af\u64ad\u653e\u3002<code>loop<\/code>\u5c5e\u6027\u9002\u5408\u7528\u5728\u53ef\u4ee5\u4e0d\u65ad\u5faa\u73af\u7684bgm\u80cc\u666f\u97f3\u4e50\u4e0a\u3002<code>loop<\/code>\u5c5e\u6027\u5728\u5404\u4e2a\u5e73\u53f0\uff0c\u5404\u4e2a\u6d4f\u89c8\u5668\u4e0b\u7684\u8868\u73b0\u826f\u597d\uff0c\u5927\u5bb6\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528\u3002<\/p>\n<p>JS\u8bbe\u7f6e\u97f3\u9891\u5faa\u73af\u64ad\u653e\u53ef\u4ee5\uff1a<\/p>\n<pre>document.querySelector('audio').loop = true;<\/pre>\n<h4>muted<\/h4>\n<p>\u793a\u610f\uff1a<\/p>\n<pre>&lt;audio src=\"audiofile.mp3\" <span style=\"color:#cd0000;\">muted<\/span>&gt;&lt;\/audio&gt;<\/pre>\n<p><code>muted<\/code>\u4e5f\u662f\u4e2a\u5e03\u5c14\u5c5e\u6027\u503c\uff0c\u8868\u793a\u97f3\u9891\u662f\u5426\u9759\u97f3\uff0c\u9ed8\u8ba4\u4e0d\u9759\u97f3\u64ad\u653e\u3002<code>muted<\/code>\u5c5e\u6027\u5728\u5404\u4e2a\u5e73\u53f0\uff0c\u5404\u4e2a\u6d4f\u89c8\u5668\u4e0b\u7684\u8868\u73b0\u826f\u597d\uff0c\u5927\u5bb6\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528\u3002<\/p>\n<p>JS\u8bbe\u7f6e\u97f3\u9891\u9759\u97f3\u53ef\u4ee5\uff1a<\/p>\n<pre>document.querySelector('audio').muted = true;<\/pre>\n<h4>preload<\/h4>\n<p>\u793a\u610f\uff1a<\/p>\n<pre>&lt;audio src=\"audiofile.mp3\" <span style=\"color:#cd0000;\">preload=\"auto\"<\/span>&gt;&lt;\/audio&gt;<\/pre>\n<p><code>preload<\/code>\u53ef\u4ee5\u6307\u5b9a\u97f3\u9891\u7684\u9884\u52a0\u8f7d\u7b56\u7565\uff0c\u4e5f\u5c31\u662f\u5728\u64ad\u653e\u4e4b\u524d\u9700\u8981\u63d0\u524d\u52a0\u8f7d\u597d\u97f3\u9891\u7684\u54ea\u4e9b\u8d44\u6e90\u3002\u652f\u6301\u4e0b\u97623\u4e2a\u5c5e\u6027\u503c\uff1a<\/p>\n<ol>\n<li><code>none<\/code>\uff1a\u8868\u793a\u5728\u70b9\u51fb\u64ad\u653e\u6309\u94ae\u4e4b\u524d\u4e0d\u52a0\u8f7d\u4efb\u4f55\u4fe1\u606f\u3002<\/li>\n<li><code>metadata<\/code>: \u4e0b\u8f7d\u97f3\u9891\u7684meta\u4fe1\u606f\uff0c\u5c31\u662f\u89c6\u9891\u957f\u5ea6\uff0c\u7c7b\u578b\uff0c\u8fd8\u6709\u4f5c\u8005\uff08\u5982\u679c\u6709\uff09\u7b49\u4fe1\u606f\u3002\/li>\n<li><code>auto<\/code>: \u4f1a\u5c1d\u8bd5\u4e0b\u8f7d\u6574\u4e2a\u97f3\u9891\uff0c\u5982\u4eca5G\u90fd\u5feb\u6765\u4e86\uff0c\u6d41\u91cf\u5df2\u7ecf\u4e0d\u503c\u94b1\u4e86\uff0c\u56e0\u6b64\uff0c\u6211\u4e2a\u4eba\u662f\u66f4\u63a8\u8350\u4f7f\u7528<code>auto<\/code>\u7684\uff0c\u4f53\u9a8c\u66f4\u597d\u4e00\u70b9\u3002\u7136\u540e\uff0c\u901a\u5e38\u6d4f\u89c8\u5668\u81ea\u5df1\u4e5f\u4f1a\u4f18\u5316\u52a0\u8f7d\u7b56\u7565\uff0c\u4e0d\u4f1a\u6240\u6709\u97f3\u9891\u6587\u4ef6\u90fd\u52a0\u8f7d\u4e0b\u6765\uff0c\u53ea\u662f\u4f1a\u52a0\u8f7d\u4e00\u90e8\u5206\uff0c\u4fdd\u8bc1\u70b9\u51fb\u64ad\u653e\u6309\u94ae\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u7acb\u5373\u64ad\u653e\u3002<\/li>\n<\/ol>\n<p><code>preload<\/code>\u5c5e\u6027\u5728iOS Safari\u6d4f\u89c8\u5668\u4e0b\u662f\u88ab\u7981\u6b62\u7684\uff08\u684c\u9762\u7aef\u65e0\u6b64\u95ee\u9898\uff09\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u5bf9\u97f3\u9891\u64ad\u653e\u65f6\u95f4\u5b9e\u9645\u8981\u6c42\u6bd4\u8f83\u9ad8\u7684\u573a\u5408\uff0c\u4f1a\u7ed9\u6211\u4eec\u5f00\u53d1\u5e26\u6765\u56f0\u96be\u3002\u901a\u5e38\u89e3\u51b3\u65b9\u6cd5\u662f\uff0c\u7b2c\u4e00\u6b21\u89e6\u6478\u7684\u65f6\u5019\uff0c\u97f3\u9891\u9759\u97f3\uff0c\u540c\u65f6\u89e6\u53d1\u97f3\u9891<code>play()<\/code>\u7136\u540e\u5f88\u5feb\u518d<code>pause()<\/code>\uff0c\u6b64\u65f6\uff0c\u53ef\u4ee5\u6709\u7c7b\u4f3c<code>preload<\/code>\u7684\u9884\u52a0\u8f7d\u884c\u4e3a\u3002<\/p>\n<p>\u4e0d\u8fc7\uff0cSafari\u4ee5\u540e\u53ef\u80fd\u4f1a\u6539\u53d8<code>preload<\/code>\u5728\u79fb\u52a8\u7aef\u7684\u52a0\u8f7d\u7b56\u7565\uff0c\u56e0\u4e3a\u8d8a\u5f80\u540e\u6d41\u91cf\u8d8a\u4e0d\u503c\u94b1\uff0c\u8fd9\u79cd\u81ea\u4ee5\u4e3a\u662f\u7684\u4f18\u5316\u53cd\u800c\u4f1a\u6210\u4e3a\u4e00\u79cd\u684e\u688f\u3002<\/p>\n<h4>controls<\/h4>\n<p>\u793a\u610f\uff1a<\/p>\n<pre>&lt;audio src=\"audiofile.mp3\" <span style=\"color:#cd0000;\">controls<\/span>&gt;&lt;\/audio&gt;<\/pre>\n<p><code>controls<\/code>\u662f\u4e2a\u5e03\u5c14\u5c5e\u6027\u503c\uff0c\u8868\u793a\u58f0\u97f3\u662f\u5426\u663e\u793a\u97f3\u9891\u64ad\u653e\u6682\u505c\u7b49\u63a7\u5236\u5668\uff0c\u9ed8\u8ba4\u662f\u4e0d\u663e\u793a\u7684\u3002<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e<code>controls<\/code>\u5c5e\u6027\uff0c\u6574\u4e2a\u97f3\u9891\u6587\u4ef6\u64ad\u653e\u9762\u677f\u90fd\u662f\u5b8c\u5168\u9690\u85cf\u7684\uff1b\u5982\u679c\u6709\u8bbe\u7f6e\uff0c\u5219UI\u53ef\u80fd\u7c7b\u4f3c\u4e0b\u9762\u8fd9\u5f20\u56fe\uff08Chrome PC\uff0c\u8bbe\u7f6e\u4e86\u9759\u97f3\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201907\/2019-07-07_001215.png\" width=\"306\" height=\"74\" alt=\"\u8bbe\u7f6e\u9759\u97f3\u7684\u97f3\u9891\u64ad\u653e\u5668\u754c\u9762\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4e0d\u540c\u6d4f\u89c8\u5668\uff0c\u4ee5\u53ca\u4e0d\u540c\u7248\u672c\u6d4f\u89c8\u5668\uff0c\u5176UI\u90fd\u4e0d\u4e00\u6837\u3002\u5982\u679c\u662f\u5f00\u53d1to\u7528\u6237\u4fa7\u4ea7\u54c1\uff0c\u9700\u8981\u81ea\u5b9a\u4e49\u97f3\u9891\u64ad\u653e\u5668\u7684UI\uff0c\u8ba9\u5404\u4e2a\u6d4f\u89c8\u5668\u4e0b\u957f\u76f8\u4e00\u81f4\uff0c\u5927\u5bb6\u53ef\u4ee5\u53bbgithub\u4e0a\u627e\u627e\u5f00\u6e90\u7684\u9879\u76ee\u3002<\/p>\n<h4>src<\/h4>\n<p>\u793a\u610f\uff1a<\/p>\n<pre>&lt;audio <span style=\"color:#cd0000;\">src<\/span>=\"audiofile.mp3\"&gt;&lt;\/audio&gt;<\/pre>\n<p><code>src<\/code>\u5c5e\u6027\u8868\u793a\u97f3\u9891\u7684\u6587\u4ef6\u5730\u5740\u3002\u53ef\u4ee5\u7528\u5728<code>&lt;audio&gt;<\/code>\u5143\u7d20\u4e0a\uff0c\u4e5f\u53ef\u4ee5\u7528\u5728<code>&lt;source&gt;<\/code>\u5143\u7d20\u4e0a\u3002<code>&lt;audio&gt;<\/code>\u5143\u7d20\u4e0a\u53ea\u80fd\u4e00\u4e2a\u97f3\u9891\u5730\u5740\uff0c\u4f7f\u7528<code>&lt;source&gt;<\/code>\u53ef\u4ee5\u5e76\u5217\u591a\u4e2a\u4e0d\u540c\u683c\u5f0f\u7684\u97f3\u9891\u6587\u4ef6\u3002<\/p>\n<h4>type<\/h4>\n<pre>&lt;audio src=\"audiofile.mp3\" <span style=\"color:#cd0000;\">type=\"audio\/mpeg\"<\/span>&gt;&lt;\/audio&gt;<\/pre>\n<p><code>type<\/code>\u5c5e\u6027\u7528\u6765\u6307\u5b9a\u97f3\u9891\u6587\u4ef6\u7684mime type\u7c7b\u578b\u3002\u867d\u7136\u4e0d\u52a0type\u7c7b\u578b\uff0c\u6d4f\u89c8\u5668\u4e5f\u80fd\u6b63\u786e\u64ad\u653e\u97f3\u9891\u6587\u4ef6\uff0c\u4f46\u901a\u5e38\u5efa\u8bae\u52a0\u4e0a<code>type<\/code>\u5c5e\u6027\u3002\u5f53\u7136\uff0c\u5982\u679csrc\u97f3\u9891\u683c\u5f0f\u4e0d\u56fa\u5b9a\uff0c\u5219<code>type<\/code>\u5c5e\u6027\u53cd\u800c\u63a8\u8350\u4e0d\u52a0\uff0c\u9519\u8bef\u7684<code>type<\/code>\u4e0d\u5982\u6ca1\u6709<code>type<\/code>\u3002<\/p>\n<h3>\u4e09\u3001\u5728JS\u4e2d\u8c03\u7528\u7684audio\u5c5e\u6027<\/h3>\n<p><code>&lt;audio&gt;<\/code>\u5143\u7d20\u8fd8\u6709\u4e00\u4e9b\u5c5e\u6027\u53ea\u80fd\u901a\u8fc7JavaScript\u8bbe\u7f6e\uff0c\u5047\u8bbe\u6709HTML\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;audio id=\"myAudio\" src=\"audiofile.mp3\"&gt;&lt;\/audio&gt;<\/pre>\n<p>\u5219\uff1a<\/p>\n<h4>currentTime<\/h4>\n<p><code>currentTime<\/code>\u662f\u4e00\u4e2a\u53ef\u8bfb\u517c\u53ef\u5199\u7684\u5c5e\u6027\uff0c\u7528\u6765\u8bbe\u7f6e\u6216\u83b7\u53d6\u5f53\u524d\u5df2\u7ecf\u64ad\u653e\u7684\u65f6\u957f\uff0c\u5355\u4f4d\u662f\u79d2\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><span style=\"color:green;\">\/\/ \u83b7\u53d6\u97f3\u9891\u5df2\u7ecf\u64ad\u653e\u65f6\u957f<\/span>\r\nvar playedTime = myAudio.currentTime;<\/pre>\n<p>\u5982\u679c\u97f3\u9891\u5c1a\u672a\u5f00\u59cb\u64ad\u653e\uff0c\u5219<code>playedTime<\/code>\u7684\u8fd4\u56de\u503c\u662f<code>0<\/code>\u3002<\/p>\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6ecurrentTime\u5c5e\u6027\u503c\uff0c\u8ba9\u6211\u4eec\u7684\u97f3\u9891\u5b9a\u4f4d\u5230\u6211\u4eec\u5e0c\u671b\u7684\u65f6\u95f4\u70b9\u8fdb\u884c\u64ad\u653e\uff0c\u4f8b\u5982\uff0c\u4ece5\u79d2\u90a3\u91cc\u5f00\u59cb\u64ad\u653e\uff0c\u5219\uff1a<\/p>\n<pre><span style=\"color:green;\">\/\/ \u8df3\u52305\u79d2\u90a3\u91cc<\/span>\r\nmyAudio.currentTime = 5;<\/pre>\n<h4>volume<\/h4>\n<p><code>volume<\/code>\u4e5f\u662f\u4e00\u4e2a\u53ef\u8bfb\u517c\u53ef\u5199\u7684\u5c5e\u6027\uff0c\u7528\u6765\u8bbe\u7f6e\u6216\u83b7\u53d6\u97f3\u9891\u7684\u97f3\u91cf\u5927\u5c0f\uff0c\u8303\u56f4\u662f0-1\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u8bbe\u7f6e\u97f3\u91cf50%\uff0c\u5219\uff1a<\/p>\n<pre><span style=\"color:green;\">\/\/ \u8bbe\u7f6e\u97f3\u91cf50%<\/span>\r\nmyAudio.volume = 0.5;<\/pre>\n<p>\u5982\u679c\u97f3\u9891\u6587\u4ef6\u8bbe\u7f6e\u4e86<code>muted<\/code>\u4e3a<code>true<\/code>\uff0c\u5219<code>myAudio.volume<\/code>\u7684\u8fd4\u56de\u503c\u662f<code>0<\/code>\u3002<\/p>\n<h4>playbackRate<\/h4>\n<p><code>playbackRate<\/code>\u662f\u4e00\u4e2a\u53ef\u8bfb\u517c\u53ef\u5199\u7684\u5c5e\u6027\uff0c\u7528\u6765\u8bbe\u7f6e\u6216\u83b7\u53d6\u5f53\u524d\u5a92\u4f53\u6587\u4ef6\u7684\u64ad\u653e\u901f\u7387\uff0c\u503c\u4e3a\u6570\u503c\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><span style=\"color:green;\">\/\/ \u83b7\u53d6\u97f3\u9891\u64ad\u653e\u901f\u7387<\/span>\r\nvar audioSpeed = audio.playbackRate;\r\n<span style=\"color:green;\">\/\/ \u8bbe\u7f6e\u97f3\u9891\u8bbe\u7f6e\u64ad\u653e\u901f\u7387\u4e3a\u6b63\u5e38\u901f\u5ea6\u76841.5\u500d<\/span>\r\naudio.playbackRate = 1.5;<\/pre>\n<p><strong>\u901f\u7387\u8303\u56f4<\/strong><\/p>\n<p>\u6839\u636e<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/HTMLMediaElement\/playbackRate\" rel=\"noopener nofollow\" target=\"_blank\">\u6587\u6863<\/a>\u663e\u793a\uff0cGecko\u5185\u6838\u6d4f\u89c8\u5668\u901f\u7387\u8303\u56f4\u662f0.25\u52305.0\uff0c\u8d85\u51fa\u8fd9\u4e2a\u8303\u56f4\u5c31\u9759\u97f3\u3002<\/p>\n<p>\u5bf9\u4e8eChrome\u6d4f\u89c8\u5668\uff0c\u6211\u81ea\u5df1\u5b9e\u5730\u6d4b\u8bd5\u4e86\u4e0b\uff0c\u901f\u7387\u4e0a\u9650\u5c45\u7136\u53ef\u4ee5\u5230<code>16<\/code>\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201907\/2019-07-07_185005.png\" width=\"506\" height=\"218\" alt=\"\u64ad\u653e\u901f\u7387\u8303\u56f4\u6d4b\u8bd5\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u7136\u540e\uff0c\u6b64\u5c5e\u6027\u517c\u5bb9\u6027\u4e0d\u9519\uff0cIE9+\u90fd\u652f\u6301\u3002<\/p>\n<h4>paused<\/h4>\n<p><code>paused<\/code>\u662f\u4e00\u4e2a\u53ea\u8bfb\u5c5e\u6027\uff0c\u8868\u793a\u5f53\u524d\u97f3\u9891\u662f\u5426\u5904\u4e8e\u6682\u505c\u72b6\u6001\u3002<\/p>\n<pre><span style=\"color:green;\">\/\/ true\u6216false<\/span>\r\nconsole.log(myAudio.paused);<\/pre>\n<p>\u672a\u64ad\u653e\u6216\u8005\u64ad\u653e\u6682\u505c\u90fd\u4f1a\u8fd4\u56de<code>true<\/code>\u3002<\/p>\n<h3>\u56db\u3001\u64ad\u653e\u4e0e\u6682\u505c\u7b49JS\u65b9\u6cd5<\/h3>\n<h4>play()<\/h4>\n<p>\u97f3\u9891\u64ad\u653e\u793a\u610f\uff0c\u6ca1\u6709\u989d\u5916\u53c2\u6570\uff1a<\/p>\n<pre>myAudio.play();<\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u76ee\u524d\u5728\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e0b\uff0c\u65e0\u8bba\u662f\u684c\u9762\u7aef\u8fd8\u662f\u79fb\u52a8\u7aef\uff0c\u6267\u884c<code>myAudio.play()<\/code>\u4e0d\u603b\u662f\u6709\u6548\u679c\u7684\u3002<\/p>\n<p>\u76ee\u524d\u7b56\u7565\u662f\uff0cweb\u7f51\u9875\u9700\u8981\u81f3\u5c11\u53c8\u4e00\u6b21\u53ef\u4fe1\u4efb\u7684\u7528\u6237\u884c\u4e3a\u540e\uff0c\u624d\u80fd<code>myAudio.play()<\/code>\u64ad\u653e\u624d\u53ef\u4ee5\u6267\u884c\uff0c\u5426\u5219\u4f1a\u62a5\u9519\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201907\/2019-07-07_164031.png\" width=\"272\" height=\"66\" alt=\"\u62a5\u9519\u573a\u666f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u53ef\u4fe1\u4efb\u7684\u7528\u6237\u884c\u4e3a\u5305\u62ec<code>touchstart<\/code>\u89e6\u6478\u6216\u8005<code>click<\/code>\u70b9\u51fb\u3002<\/p>\n<p><strong>\u66f4\u65b0\u4e8e2020-11-20<\/strong><\/p>\n<p>Chrome\u6d4f\u89c8\u566850\u4e4b\u540e\u7684\u7248\u672c\uff0c <code>&lt;video&gt;<\/code>\u6216\u8005<code>&lt;audio&gt;<\/code>\u6267\u884c<code>play()<\/code>\u65b9\u6cd5\u540e\u8fd4\u56de\u7684\u662f\u4e00\u4e2aPromise\u3002<\/p>\n<p><code>play()<\/code>\u65b9\u6cd5\u662f\u4e00\u4e2a\u5f02\u6b65\u8fc7\u7a0b\uff0c\u5982\u679c\u5148<code>play()<\/code>\u65b9\u6cd5\u7136\u540e\u7acb\u5373\u6267\u884c<code>pause()<\/code>\u65b9\u6cd5\u4f1a\u62a5\u9519\uff1a<\/p>\n<blockquote><p>Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause().<\/p><\/blockquote>\n<p>\u5373\u4f7f\u52a0\u4e00\u4e2a\u5b9a\u65f6\u5668\uff08\u65f6\u95f4\u5982\u679c\u4e0d\u662f\u5f88\u8db3\u591f\uff09\uff0c\u4e5f\u4f1a\u62a5\u8fd9\u4e2a\u9519\u8bef\uff0c\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u8bed\u6cd5\uff1a<\/p>\n<pre>&lt;script&gt;\r\n  <span style=\"color:green;\">\/\/ \u64ad\u653e\u5f00\u59cb\uff0c\u53ef\u80fd\u4f1a\u663e\u793aloading<\/span>\r\n  var playPromise = audio.play();\r\n \r\n  if (playPromise !== undefined) {\r\n    playPromise.then(_ =&gt; {\r\n      <span style=\"color:green;\">\/\/ \u8fd9\u91cc\u5c31\u5df2\u7ecf\u5f00\u59cb\u64ad\u653e\u4e86\r\n      \/\/ \u64ad\u653eUI\u4f1a\u51fa\u73b0\uff08\u5982\u679c\u63a7\u4ef6\u663e\u793a\u7684\u8bdd\uff09\r\n      \/\/ \u6b64\u65f6\u53ef\u4ee5\u5b89\u5168\u7684\u6682\u505c\u97f3\u89c6\u9891\u4e86<\/span>\r\n      audio.pause();\r\n    }).catch(error =&gt; {\r\n      <span style=\"color:green;\">\/\/ \u65e0\u6cd5\u81ea\u52a8\u64ad\u653e\r\n      \/\/ \u663e\u793a\u6682\u505c\u7684UI<\/span>\r\n    });\r\n  }\r\n&lt;\/script&gt;<\/pre>\n<h4>pause()<\/h4>\n<p>\u97f3\u9891\u6682\u505c\u793a\u610f\uff0c\u6ca1\u6709\u989d\u5916\u53c2\u6570\uff1a<\/p>\n<pre>myAudio.pause();<\/pre>\n<p>\u97f3\u9891\u5143\u7d20\u662f\u6ca1\u6709<code>stop()<\/code>\u65b9\u6cd5\u7684\uff0c\u5982\u679c\u4f60\u60f3\u8981\u5b9e\u73b0\u97f3\u9891\u7684<code>stop()<\/code>\u6548\u679c\uff0c\u53ef\u4ee5\u5148\u8bbe\u7f6e<code>currentTime<\/code>\u5c5e\u6027\u503c\u4e3a0\uff0c\u7136\u540e\u5728\u6267\u884c<code>pause()<\/code>\u65b9\u6cd5\u3002<\/p>\n<h4>canPlayType()<\/h4>\n<p><code>canPlayType()<\/code>\u53ef\u4ee5\u7528\u6765\u68c0\u6d4b\u6d4f\u89c8\u5668\u662f\u5426\u652f\u6301\u67d0\u79cd\u7c7b\u578b\u7684\u97f3\u9891\u6587\u4ef6\uff0c\u652f\u6301\u4e00\u4e2amime type\u503c\u4f5c\u4e3a\u53c2\u6570\u3002\u4f7f\u7528\u793a\u610f\uff1a<\/p>\n<pre>if (myAudio.canPlayType('audio\/mpeg')) {\r\n  <span style=\"color:green;\">\/\/ \u5982\u679c\u652f\u6301mp3\r\n  \/\/ \u8fd9\u91cc\u641e\u4e8b\u60c5<\/span>\r\n}<\/pre>\n<p><code>canPlayType()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u4e0b\u9762\u4e09\u4e2a\u503c\u4e2d\u7684\u67d0\u4e00\u4e2a\uff1a<\/p>\n<ol>\n<li><code>probably<\/code><\/li>\n<li><code>maybe<\/code><\/li>\n<li><code>\"\"<\/code>\uff08\u7a7a\u5b57\u7b26\u4e32\uff09<\/li>\n<\/ol>\n<p>\u5b9e\u9645\u5f00\u53d1\u7684\u65f6\u5019\uff0c\u53ea\u8981\u4e0d\u662f\u7a7a\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u90fd\u53ef\u4ee5\u8ba4\u4e3a\u662f\u652f\u6301\u7684\uff0c\u56e0\u6b64\uff0c\u76f4\u63a5\u4f7f\u7528<code>if<\/code>\u5f31\u5339\u914d\u8fd4\u56de\u503c\u5373\u53ef\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>var myAudio = document.createElement('audio');\r\n\r\nif (myAudio.canPlayType('audio\/mpeg')) {\r\n  myAudio.setAttribute('src','audiofile.mp3');\r\n}\r\n\r\nif (myAudio.canPlayType('audio\/ogg')) {\r\n  myAudio.setAttribute('src','audiofile.ogg');\r\n}<\/pre>\n<h4>load()<\/h4>\n<p>\u89e6\u53d1\u97f3\u9891\u6587\u4ef6\u7684\u52a0\u8f7d\u3002\u5982\u679c\u6d4f\u89c8\u5668\u4e0d\u652f\u6301<code>preload<\/code>\u5c5e\u6027\uff0c\u5219\u6b64\u65b9\u6cd5\u4e5f\u4e0d\u4f1a\u6709\u6548\u679c\u3002<\/p>\n<p>\u6b64\u65b9\u6cd5\u6ca1\u6709\u989d\u5916\u53c2\u6570\uff1a<\/p>\n<pre>myAudio.load();<\/pre>\n<h3>\u4e94\u3001\u97f3\u9891\u5a92\u4f53\u52a0\u8f7d\u4e8b\u4ef6<\/h3>\n<p>\u4e0b\u9762\u8bb2\u8bb2\u5173\u4e8e\u97f3\u9891\u52a0\u8f7d\u53ca\u76f8\u5173\u5904\u7406\uff0c\u6839\u636e\u6211\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u5b9e\u8df5\uff0c\u8fd9\u7c7b\u52a0\u8f7d\u4e8b\u4ef6\u5728\u79fb\u52a8\u7aef\uff0c\u5c24\u5176iOS Safari\u5e76\u4e0d\u603b\u80fd\u89e6\u53d1\uff0c\u56e0\u4e3apreload\u4ee5\u53caautoplay\u7b49\u5c5e\u6027\u7684\u9650\u5236\u3002<\/p>\n<h4>loadstart<\/h4>\n<p><code>loadstart\u4e8b\u4ef6<\/code>\u7b80\u5355\u5730\u544a\u8bc9\u6211\u4eec\u52a0\u8f7d\u8fc7\u7a0b\u5df2\u7ecf\u5f00\u59cb\uff0c\u6d4f\u89c8\u5668\u6b63\u5728\u8fde\u63a5\u5230\u5a92\u4f53\u3002<\/p>\n<pre>myAudio.addEventListener(\"loadstart\", function() {\r\n  <span style=\"color:green;\">\/\/ \u6293\u53d6\u6587\u4ef6<\/span>\r\n});<\/pre>\n<h4>durationchange<\/h4>\n<p>\u5982\u679c\u4f60\u60f3\u5c3d\u5feb\u77e5\u9053\u97f3\u9891\u6587\u4ef6\u7684\u64ad\u653e\u65f6\u957f\uff0c\u5219<code>durationchange<\/code>\u4e8b\u4ef6\u975e\u5e38\u7ba1\u7528\uff0c\u56e0\u4e3a\u97f3\u9891\u6587\u4ef6\u9ed8\u8ba4duration\u521d\u59cb\u503c\u662f<code>NaN<\/code>\uff0c\u5f53\u51c6\u786e\u65f6\u957f\u8fd4\u56de\u65f6\u5019\uff0c\u4f1a\u89e6\u53d1<code>durationchange<\/code>\uff0c\u6b64\u65f6\u6211\u4eec\u5c31\u53ef\u4ee5\u5feb\u901f\u663e\u793a\u97f3\u9891\u64ad\u653e\u65f6\u95f4\u4e86\u3002<\/p>\n<p>\u901a\u5e38\u5b9e\u9645\u5f00\u53d1\uff0c\u6211\u4eec\u4f1a\u4f7f\u752800:00\u5360\u4f4d\uff0c<code>durationchange<\/code>\u4e8b\u4ef6\u89e6\u53d1\u540e\u5728\u66ff\u6362\u4e3a\u51c6\u786e\u7684\u603b\u64ad\u653e\u65f6\u95f4\u3002<\/p>\n<pre>myAudio.addEventListener(\"durationchange\", function() {\r\n  <span style=\"color:green;\">\/\/ \u53ef\u4ee5\u663e\u793a\u64ad\u653e\u65f6\u957f\u4e86\u54df<\/span>\r\n});<\/pre>\n<h4>loadedmetadata<\/h4>\n<p>\u5f53\u7b2c\u4e00\u4e2a\u97f3\u9891\u6587\u4ef6\u5b57\u8282\u6570\u636e\u5230\u8fbe\u65f6\uff0c\u4f1a\u89e6\u53d1<code>loadeddata<\/code>\u4e8b\u4ef6\u3002\u867d\u7136\u64ad\u653e\u5934\u5df2\u7ecf\u5c31\u4f4d\uff0c\u4f46\u8fd8\u6ca1\u6709\u51c6\u5907\u597d\u64ad\u653e\u3002<\/p>\n<pre>myAudio.addEventListener(\"loadeddata\", function() {\r\n  <span style=\"color:green;\">\/\/ \u53ef\u4ee5\u663e\u793a\u64ad\u653e\u5934<\/span>\r\n});<\/pre>\n<h4>progress<\/h4>\n<p><code>progress<\/code>\u4e8b\u4ef6\u5728\u5a92\u4f53\u6587\u4ef6\u4ecd\u7136\u5728\u4e0b\u8f7d\u4e2d\u7684\u65f6\u5019\u89e6\u53d1\uff0c\u901a\u5e38\u5404\u79cdloading\u6548\u679c\u7684\u663e\u793a\u5c31\u662f\u5728\u8fd9\u4e2a\u4e8b\u4ef6\u4e2d\u3002<\/p>\n<pre>myAudio.addEventListener(\"progress\", function() {\r\n  <span style=\"color:green;\">\/\/ \u4f60\u53ef\u4ee5\u8ba9\u7528\u6237\u77e5\u9053\u5a92\u4f53\u6587\u4ef6\u6b63\u5728\u4e0b\u8f7d<\/span>\r\n});<\/pre>\n<h4>canplay<\/h4>\n<p>\u5f53\u5a92\u4f53\u6587\u4ef6\u53ef\u4ee5\u64ad\u653e\u7684\u65f6\u5019\u4f1a\u89e6\u53d1<code>canplay<\/code>\u4e8b\u4ef6\u3002<\/p>\n<p>\u6211\u4eec\u5728\u81ea\u5b9a\u4e49\u97f3\u9891\u64ad\u653e\u5668\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u9ed8\u8ba4\u628a\u4e00\u4e9b\u6309\u94aedisabled\u7981\u7528\uff0c\u7b49\u53ef\u4ee5\u64ad\u653e\u7684\u65f6\u5019\u518d\u6062\u590d\u4e3aenabled\uff0c\u6b64\u65f6\u5c31\u53ef\u4ee5\u4f7f\u7528<code>canplay<\/code>\u4e8b\u4ef6\u3002<\/p>\n<pre>myAudio.addEventListener(\"canplay\", function() {\r\n  <span style=\"color:green;\">\/\/ \u97f3\u9891\u53ef\u4ee5\u64ad\u653e\u4e86<\/span>\r\n});<\/pre>\n<h4>canplaythrough<\/h4>\n<p><code>canplaythrough<\/code>\u4e8b\u4ef6\u5728\u97f3\u9891\u6587\u4ef6\u53ef\u4ee5\u4ece\u5934\u64ad\u653e\u5230\u5c3e\u65f6\u5019\u89e6\u53d1\u3002\u8fd9\u79cd\u60c5\u51b5\u5305\u62ec\u97f3\u9891\u6587\u4ef6\u5df2\u7ecf\u4ece\u5934\u5230\u5c3e\u52a0\u8f7d\u5b8c\u6bd5\u4e86\uff0c\u6216\u8005\u6d4f\u89c8\u5668\u8ba4\u4e3a\u4e00\u5b9a\u53ef\u4ee5\u6309\u65f6\u4e0b\u8f7d\uff0c\u4e0d\u4f1a\u53d1\u751f\u7f13\u51b2\u505c\u6b62\u3002<\/p>\n<pre>myAudio.addEventListener(\"canplaythrough\", function() {\r\n  <span style=\"color:green;\">\/\/ \u97f3\u9891\u53ef\u4ee5\u4e0d\u53d1\u751f\u7f13\u51b2\u4ece\u5934\u64ad\u653e\u5230\u7ed3\u675f<\/span>\r\n});<\/pre>\n<h4>\u97f3\u9891\u4e8b\u4ef6\u89e6\u53d1\u7684\u987a\u5e8f<\/h4>\n<p>\u5a92\u4f53\u4e8b\u4ef6\u52a0\u8f7d\u987a\u5e8f\u5982\u4e0b\uff1a<\/p>\n<p><code>loadstart<\/code> \u2192 <code>durationchange<\/code> \u2192 <code>loadedmetadata<\/code> \u2192 <code>loadeddata<\/code> \u2192 <code>progress<\/code> \u2192 <code>canplay<\/code> \u2192 <code>canplaythrough<\/code><\/p>\n<h4>\u52a0\u8f7d\u4e2d\u65ad\u4e8b\u4ef6<\/h4>\n<p>\u8fd8\u6709\u4e00\u4e9b\u4e8b\u4ef6\u5b9e\u5728\u5a92\u4f53\u52a0\u8f7d\u8fc7\u7a0b\u51fa\u73b0\u67d0\u79cd\u4e2d\u65ad\u65f6\u5c06\u89e6\u53d1\u3002<\/p>\n<dl>\n<dt><strong>suspend<\/strong><\/dt>\n<dd>\u5373\u4f7f\u6587\u4ef6\u5c1a\u672a\u5b8c\u5168\u4e0b\u8f7d\uff0c\u4e5f\u4e0d\u518d\u62c9\u53d6\u5a92\u4f53\u6570\u636e\u3002<\/dd>\n<dt><strong>abort<\/strong><\/dt>\n<dd>\u4e0d\u662f\u56e0\u4e3a\u51fa\u9519\u800c\u5bfc\u81f4\u7684\u5a92\u4f53\u6570\u636e\u4e0b\u8f7d\u4e2d\u6b62\u3002<\/dd>\n<dt><strong>error<\/strong><\/dt>\n<dd>\u5a92\u4f53\u4e0b\u8f7d\u8fc7\u7a0b\u4e2d\u9519\u8bef\u3002\u4f8b\u5982\u7a81\u7136\u65e0\u7f51\u7edc\u4e86\u3002\u6216\u8005\u6587\u4ef6\u5730\u5740\u4e0d\u5bf9\u3002<\/dd>\n<dt><strong>emptied<\/strong><\/dt>\n<dd>\u5a92\u4f53\u7f13\u51b2\u533a\u5df2\u88ab\u6e05\u7a7a\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u9519\u8bef\u6216\u8c03\u7528\u4e86<code>load()<\/code>\u65b9\u6cd5\u91cd\u65b0\u52a0\u8f7d\u3002<\/dd>\n<dt><strong>stalled<\/strong><\/dt>\n<dd>\u5a92\u4f53\u6570\u636e\u610f\u5916\u5730\u4e0d\u518d\u53ef\u7528\u3002<\/dd>\n<\/dl>\n<h3>\u516d\u3001\u97f3\u9891\u5a92\u4f53\u64ad\u653e\u4e8b\u4ef6<\/h3>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u4e00\u4e9b\u4e0e\u5a92\u4f53\u6587\u4ef6\u64ad\u653e\u72b6\u6001\u76f8\u5173\u7684\u4e00\u4e9b\u4e8b\u4ef6\u3002<\/p>\n<h4>timeupdate<\/h4>\n<p>\u6bcf\u6b21<code>currentTime<\/code>\u5c5e\u6027\u503c\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\u4f1a\u89e6\u53d1<code>timeupdate<\/code>\u4e8b\u4ef6\u3002<\/p>\n<p>\u5b9e\u9645\u5f00\u53d1\u7684\u65f6\u5019\uff0c\u8fd9\u4e2a\u4e8b\u4ef6\u6bcf250\u6beb\u79d2\u51fa\u53d1\u4e00\u6b21\u3002\u8fd9\u4e2a\u4e8b\u4ef6\u53ef\u7528\u6765\u5b9e\u65f6\u663e\u793a\u64ad\u653e\u8fdb\u5ea6\u3002<\/p>\n<pre>myAudio.addEventListener(\"timeupdate\", function() {\r\n  <span style=\"color:green;\">\/\/ \u66f4\u65b0\u4e0e\u64ad\u653e\u8fdb\u5ea6\u76f8\u5173\u7684\u5185\u5bb9<\/span>\r\n});<\/pre>\n<h4>playing<\/h4>\n<p>\u97f3\u9891\u6587\u4ef6\u5728\u7f3a\u5c11\u5a92\u4f53\u4fe1\u606f\uff08\u5982\u65f6\u957f\u7b49\uff09\u7684\u65f6\u5019\uff0c\u64ad\u653e\u4f1a\u88ab\u8feb\u505c\u6b62\uff0c\u5982\u679c\u4e4b\u540e\u5728\u542f\u52a8\u64ad\u653e\uff0c\u4f1a\u89e6\u53d1<code>playing<\/code>\u4e8b\u4ef6\u3002<\/p>\n<h4>waiting<\/h4>\n<p>\u97f3\u9891\u6587\u4ef6\u56e0\u4e3a\u7f3a\u5c11\u5a92\u4f53\u4fe1\u606f\uff08\u5982\u65f6\u957f\u7b49\uff09\u5bfc\u81f4\u64ad\u653e\u505c\u6b62\u65f6\u4f1a\u89e6\u53d1<code>waiting<\/code>\u4e8b\u4ef6\u3002<\/p>\n<h4>play<\/h4>\n<p><code>play<\/code>\u4e8b\u4ef6\u5728<code>play()<\/code>\u65b9\u6cd5\u751f\u6548\uff0c\u6216\u8005autoplay\u5bfc\u81f4\u64ad\u653e\u5f00\u59cb\u65f6\u5019\u89e6\u53d1\uff0c\u6b64\u4e8b\u4ef6\u89e6\u53d1\u7684\u64ad\u653e\u72b6\u6001\u4e00\u5b9a\u662f\u4e00\u4e2a\u4ece\u6682\u505c\u5230\u64ad\u653e\u3002<\/p>\n<h4>pause<\/h4>\n<p><code>pause<\/code>\u4e8b\u4ef6\u5728<code>pause()<\/code>\u65b9\u6cd5\u6267\u884c\u5e76\u751f\u6548\u540e\u89e6\u53d1\uff0c\u6b64\u4e8b\u4ef6\u89e6\u53d1\u9700\u8981\u4e00\u4e2a\u4ece\u64ad\u653e\u5230\u6682\u505c\u7684\u72b6\u6001\u53d8\u5316\u3002<\/p>\n<h4>ended<\/h4>\n<p>\u5f53\u6574\u4e2a\u97f3\u9891\u6587\u4ef6\u64ad\u653e\u5b8c\u6bd5\u7684\u65f6\u5019\u89e6\u53d1<code>ended<\/code>\u4e8b\u4ef6\u3002<\/p>\n<pre>myAudio.addEventListener(\"ended\", function() {\r\n  <span style=\"color:green;\">\/\/ \u5f53\u97f3\u8f68\u64ad\u653e\u5b8c\u6bd5\u65f6\u5019\u505a\u4f60\u60f3\u505a\u7684\u4e8b\u60c5<\/span>\r\n});<\/pre>\n<h4>volumechange<\/h4>\n<p>\u97f3\u91cf\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\u4f1a\u89e6\u53d1<code>volumechange<\/code>\u4e8b\u4ef6\uff0c\u5305\u62ec\u9759\u97f3\u884c\u4e3a\u3002<\/p>\n<h4>ratechange<\/h4>\n<p>\u64ad\u653e\u901f\u7387\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\u4f1a\u89e6\u53d1<code>ratechange<\/code>\u4e8b\u4ef6\u3002<\/p>\n<h3>\u4e03\u3001\u7f13\u51b2\u76f8\u5173\u7684\u5c5e\u6027\u548c\u65b9\u6cd5<\/h3>\n<p>\u5a92\u4f53\u6587\u4ef6\u7684\u64ad\u653e\u8fdb\u5ea6\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code>currentTime<\/code>\u548c<code>duration<\/code>\u5c5e\u6027\u83b7\u53d6\uff0c\u4f46\u662f\u6709\u65f6\u5019\uff0c\u6211\u4eec\u5e0c\u671b\u77e5\u9053\u7f13\u51b2\u52a0\u8f7d\u7684\u8fdb\u5ea6\uff0c\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u51e0\u4e2a\u548c\u7f13\u51b2\u76f8\u5173\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<h4>buffered<\/h4>\n<p>\u6b64\u5c5e\u6027\u8ba9\u6211\u4eec\u77e5\u9053\u97f3\u9891\u7684\u54ea\u4e9b\u90e8\u5206\u5df2\u88ab\u7f13\u51b2\uff08\u63d0\u524d\u4e0b\u8f7d\uff09\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u79f0\u4e3aTimeRanges\u7684\u5bf9\u8c61\u3002<\/p>\n<pre>myBufferedTimeRanges = myAudio.buffered;<\/pre>\n<h4>seekable<\/h4>\n<p><code>seekable<\/code>\u5c5e\u6027\u901a\u77e5\u60a8\u662f\u5426\u53ef\u4ee5\u76f4\u63a5\u8df3\u5230\u5a92\u4f53\u7684\u8be5\u90e8\u5206\uff0c\u800c\u4e0d\u9700\u8981\u8fdb\u4e00\u6b65\u7f13\u51b2\u3002<\/p>\n<pre>mySeekableTimeRanges = myAudio.seekable;<\/pre>\n<p><strong>Buffering\u76f8\u5173\u4e8b\u4ef6<\/strong><\/p>\n<dl>\n<dt><strong>seeking<\/strong><\/dt>\n<dd>\u5f53\u5a92\u4f53\u8d44\u6e90\u6b63\u5728\u8bf7\u6c42\u662f\u4f1a\u89e6\u53d1<code>seeking<\/code>\u4e8b\u4ef6\u3002<\/dd>\n<dt><strong>seeked<\/strong><\/dt>\n<dd>\u5f53<code>seeking<\/code>\u5c5e\u6027\u53d8\u6210<code>false<\/code>\u65f6\u5019\u4f1a\u89e6\u53d1<code>seeked<\/code>\u4e8b\u4ef6\u3002<\/dd>\n<\/dl>\n<p>\u6709\u5173\u7f13\u51b2\u4ee5\u53caTimeRanges\u66f4\u6df1\u5165\u5177\u4f53\u7684\u77e5\u8bc6\uff0c\u53ef\u4ee5\u53c2\u89c1\u8fd9\u7bc7<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/Guide\/Audio_and_video_delivery\/buffering_seeking_time_ranges\" rel=\"noopener nofollow\" target=\"_blank\">MDN\u6587\u6863<\/a>\u3002<\/p>\n<h3>\u516b\u3001\u7ed3\u8bed\u4e0e\u53c2\u8003\u6587\u6863<\/h3>\n<p>\u672c\u6587\u5c55\u793a\u7684\u8fd9\u4e9b<code>&lt;audio&gt;<\/code>\u97f3\u9891\u5143\u7d20\u76f8\u5173\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u4ee5\u53ca\u5404\u79cd\u56de\u8c03\u4e8b\u4ef6\uff0c\u5bf9\u4e8e<code>&lt;video&gt;<\/code>\u89c6\u9891\u5143\u7d20\u540c\u6837\u53d7\u7528\uff0c\u57fa\u672c\u4e0a\u90fd\u662f\u4e00\u6a21\u4e00\u6837\u7684\uff0c\u5f88\u591a\u81ea\u52a8\u64ad\u653e\u4ee5\u53ca\u5a92\u4f53\u81ea\u52a8\u52a0\u8f7d\u7b56\u7565\u4e5f\u662f\u4e00\u81f4\u7684\u3002<\/p>\n<p>\u672c\u6587\u5c55\u793a\u7684\u8fd9\u4e9bAPI\u5e76\u4e0d\u662f\u5168\u90e8\uff0c\u5982\u679c\u53d1\u73b0\u6709\u9057\u6f0f\uff0c\u6b22\u8fce\u5927\u5bb6\u8865\u5145\u3002<\/p>\n<h4>\u53c2\u8003\u6587\u6863<\/h4>\n<ul>\n<li><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/Guide\/Audio_and_video_delivery\/Cross-browser_audio_basics\" rel=\"noopener nofollow\" target=\"_blank\">Cross-browser audio basics<\/a><\/li>\n<\/ul>\n<p>\u611f\u8c22\u9605\u8bfb\uff0c\u6b22\u8fce\u4ea4\u6d41\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f618.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u5206\u4eab\uff0c\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5982\u679c\u5185\u5bb9\u4f60\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u4ee5\u52a0\u5165\u6536\u85cf\u5939\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u800c\u4e14\u8fd8\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u9519\u8bef\uff0c\u9605\u8bfb\u4f53\u9a8c\u4e5f\u66f4\u597d\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8769\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=8769<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201907\/audio-cover.jpg\" width=\"161\" height=\"100\" class=\"alignright size-medium\" alt=\"Audio\u57fa\u7840API\u5927\u5168\" loading=\"lazy\" \/><\/p>\n<p>\u97f3\u89c6\u9891\u64ad\u653e\u6682\u505c\u63a7\u5236\uff0c\u64ad\u653e\u65f6\u957f\u83b7\u53d6\uff0c\u64ad\u653e\u901f\u7387\uff0c\u4ee5\u53ca\u68c0\u6d4b\u4ec0\u4e48\u65f6\u5019\u64ad\u653e\u7ed3\u675f\uff0c\u5f53\u524d\u5a92\u4f53\u8d44\u6e90\u662f\u5426\u5904\u4e8e\u6682\u505c\u72b6\u6001\u7b49\uff0c\u90fd\u5728\u672c\u6587\u6709\u6240\u4ecb\u7ecd\uff0c\u672c\u6587\u5c31\u662faudio\/video\u5143\u7d20\u5404\u7c7b\u57fa\u7840API\u5b8c\u5168\u4ecb\u7ecd\uff0c\u603b\u80fd\u627e\u5230\u4f60\u9700\u8981\u7684\u4e1c\u897f\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284,7],"tags":[215,489,1445,1448,1450,1452,9,52,1446,1447,1279,1430,1449,340,1451],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/8769"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=8769"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/8769\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=8769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=8769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=8769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}