{"id":2673,"date":"2023-05-16T15:29:33","date_gmt":"2023-05-16T07:29:33","guid":{"rendered":"https:\/\/7gugu.com\/?p=2673"},"modified":"2024-08-18T11:44:50","modified_gmt":"2024-08-18T03:44:50","slug":"webaudio%e4%bd%bf%e7%94%a8%e5%b0%8f%e7%bb%93%f0%9f%a7%ad","status":"publish","type":"post","link":"https:\/\/7gugu.com\/index.php\/2023\/05\/16\/webaudio%e4%bd%bf%e7%94%a8%e5%b0%8f%e7%bb%93%f0%9f%a7%ad\/","title":{"rendered":"WebAudio\u4f7f\u7528\u5c0f\u7ed3\ud83e\udded"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u80cc\u666f<\/h2>\n\n\n\n

\u6700\u8fd1\u5728\u8d1f\u8d23\u6e38\u620f\u9879\u76ee\u7684\u5f00\u53d1\uff0c\u4e0d\u514d\u9700\u8981\u63a5\u89e6\u5230\u97f3\u9891\u76f8\u5173\u80fd\u529b\u7684\u5f00\u53d1\u3002\u5728\u79fb\u52a8\u7aef\u5b9e\u8df5\u540e\u624d\u4e86\u89e3\u5230\uff0ciOS\u4e0b\u7684AudioDOM\u5e76\u6ca1\u6709\u88ab\u5b8c\u5168\u5b9e\u73b0\uff0c\u6bd4\u5982iOS\u4e0b\u5c31\u65e0\u6cd5\u76f4\u63a5\u901a\u8fc7JS\u63a7\u5236AudioDOM\u7684\u97f3\u91cf\u5927\u5c0f\uff0c\u53ea\u80fd\u63a7\u5236\u5176\u662f\u5426\u88ab\u9759\u97f3\uff0c\u53e6\u5916\u9759\u97f3\u62e8\u6746\u7684\u4f18\u5148\u7ea7\u6bd4\u97f3\u91cf\u952e\u7684\u4f18\u5148\u7ea7\u8981\u9ad8\u3002\u5982\u679c\u7528\u6237\u901a\u8fc7\u62e8\u6746\u6253\u5f00\u4e86\u9759\u97f3\u6a21\u5f0f\uff0cAudioDOM\u9ed8\u8ba4\u662f\u6ca1\u529e\u6cd5\u63a7\u5236\u97f3\u91cf\u7684\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u5c1d\u8bd5\u89e3\u51b3\u95ee\u9898<\/h2>\n\n\n\n

\u7531\u4e8e\u9700\u8981\u5b9e\u73b0\u901a\u7528\u80fd\u529b\u4e2d\u89c4\u5212\u7684\u97f3\u9891\u7684\u54cd\u5ea6\u63a7\u5236\uff0c\u641c\u7d22\u4e00\u5708\u540e\u53d1\u73b0\u53ef\u4ee5\u5f15\u5165WebAudio\u6765\u89e3\u51b3\u95ee\u9898\u3002\uff08https:\/\/stackoverflow.com\/questions\/27296391\/is-there-any-possibility-to-control-html5-audio-volume-on-ios<\/a>\uff09<\/p>\n\n\n\n

\u6539\u9020\u524d\u97f3\u9891\u67b6\u6784<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u521d\u59cb\u5316\u9636\u6bb5\u7684\u65f6\u5019\uff0c\u901a\u7528\u7ec4\u4ef6\u4f1a\u68c0\u67e5DOM\u6811\u662f\u5426\u5b58\u5728AudioDOM\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u5c31\u4f1a\u5c1d\u8bd5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684AudioDOM\u5e76\u6302\u8f7d\u5230DOM\u6811\u4e0a\u3002\u72b6\u6001\u64cd\u4f5c\u4e5f\u662f\u76f4\u63a5\u5bf9DOM\u6811\u4e0a\u7684AudioDOM\u64cd\u4f5c\u3002<\/p>\n\n\n\n

\u6539\u9020\u540e\u97f3\u9891\u67b6\u6784<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

WebAudio\u652f\u6301\u591a\u79cd\u65b9\u5f0f\u521b\u5efa\u97f3\u9891\u8f93\u5165\uff0c\u5373\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7AudioBuffer\u83b7\u5f97\u97f3\u9891\u8f93\u5165\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7createMediaElementSource\u4ece\u5df2\u6709\u7684AudioDOM\u4e0a\u521b\u5efa\u97f3\u9891\u8f93\u5165\u3002\u6b64\u5904\u6211\u4f7f\u7528\u7684\u662f\u540e\u8005\uff0c\u901a\u8fc7\u5728AudioDOM\u4e0e\u626c\u58f0\u5668\u4e4b\u95f4\u521b\u5efa\u4e86\u4e00\u4e2a\u201c\u4ee3\u7406\u5c42\u201d\uff0c\u5c06\u97f3\u9891\u8f93\u51fa\u901a\u8fc7GainNode(\u589e\u76ca\u5668\u8282\u70b9)\u5904\u7406\u4e86\u4e00\u4e0b\u3002\u901a\u8fc7GainNode\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u97f3\u9891\u7684\u54cd\u5ea6\uff0c\u95f4\u63a5\u7684\u5b9e\u73b0\u4e86iOS\u7684\u97f3\u91cf\u63a7\u5236\u3002<\/p>\n\n\n\n

\u9519\u8bef\u4e0a\u62a5<\/h2>\n\n\n\n

\u4e0d\u5e78\u7684\u662f\uff0c\u6d4b\u8bd5\u7684Testcase\u8fd8\u4e0d\u591f\u5b8c\u5584\uff0c\u4e1a\u52a1\u88ab\u53d1\u5e03\u540e\uff0c\u9519\u8bef\u91cf\u6fc0\u589e\uff0c\u544a\u8b66\u62c9\u6ee1\ud83d\ude02\u3002<\/p>\n\n\n\n

\u7ecf\u8fc7\u68b3\u7406\u540e\u4e3b\u8981\u662f\u4ee5\u4e0b\u4e09\u79cd\u95ee\u9898\uff1a<\/p>\n\n\n\n

    \n
  1. Failed to construct ‘AudioContext’: The number of hardware contexts provided (6) is greater than or equal to the maximum bound (6).<\/li>\n\n\n\n
  2. The provided value is non-finite<\/li>\n\n\n\n
  3. undefined is not a constructor (evaluating ‘new(window.AudioContext||window.webkitAudioContext)’)<\/li>\n<\/ol>\n\n\n\n

    1.AudioContext\u53ea\u80fd\u521b\u5efa6\u4e2a\u5b9e\u4f8b<\/h3>\n\n\n\n

    Webview\u7248\u672c\u5c0f\u4e8e66\u4e2d\u53ea\u80fd\u521b\u5efa\u5c0f\u4e8e\u7b49\u4e8e6\u4e2a\u7684AudioContext\uff0c\u4f1a\u5bfc\u81f4\u9875\u9762\u65e0\u6cd5\u7ee7\u7eed\u64ad\u653e\u97f3\u9891\u3002\uff08https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Web_Audio_API\uff09<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    \u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n\n\n\n

    1. \u589e\u52a0\u5168\u5c40AudioContext\u6c60\uff0c\u901a\u8fc7\u4e00\u4e2a\u5b9e\u4f8b\u6765\u7ba1\u7406\u6700\u5927\u97f3\u9891\u5bf9\u8c61\u6570\u91cf\u3002<\/p>\n\n\n\n

    2. \u4e0d\u4f7f\u7528\u7684AudioContext\u9700\u8981\u88ab\u53ca\u65f6\u91ca\u653e\uff0c\u907f\u514d\u5360\u7528\u97f3\u9891\u5bf9\u8c61\u8d44\u6e90\u3002<\/p>\n\n\n\n

    2.\u97f3\u9891\u8282\u70b9\u63d0\u4f9b\u7684\u4e0d\u662f\u6709\u9650\u503c<\/h3>\n\n\n\n

    \u5728\u67d0\u4e9b\u73af\u5883\u4e2d\uff0cJS\u7684\u9664\u8fd0\u7b97\u8ba1\u7b97\u51fa\u6765\u7684\u503c\u4e0d\u662f\u4e00\u4e2a\u6709\u9650\u503c\uff0c\u76f4\u63a5\u8d4b\u503c\u7ed9WebAudio\u7684\u8282\u70b9\u4f1a\u62a5\u8be5\u9519\u8bef\u3002<\/p>\n\n\n\n

    \u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n\n\n\n

    \u8d4b\u503c\u524d\u901a\u8fc7isFinite\u51fd\u6570\u68c0\u67e5\u662f\u5426\u662f\u6709\u9650\u503c\uff0c\u5982\u679c\u4e0d\u662f\u5219\u4f7f\u7528\u4e00\u4e2a\u56fa\u5b9a\u7684\u503c\u4f5c\u4e3a\u515c\u5e95\u5373\u53ef\u3002<\/p>\n\n\n\n

    3.window.AudioContext\u4e0d\u5b58\u5728<\/h3>\n\n\n\n

    \u6309\u9053\u7406\u6765\u8bf4AudioContext\u5728\u6267\u884cJS\u4ee3\u7801\u4e4b\u524d\u5c31\u5e94\u8be5\u88ab\u6302\u8f7d\u5230window\u4e0a\u4e86\u3002\u4f46\u9057\u61be\u7684\u662f\uff0ciOS15\u4e4b\u540e\u7684WKWebview\u4f1a\u7ecf\u5e38\u51fa\u73b0\uff0c\u6267\u884cJS\u4ee3\u7801\u7684\u65f6\u5019AudioContext\u4ecd\u7136\u672a\u88ab\u6302\u8f7d\u5230window\u4e0a\uff0c\u5bfc\u81f4\u6267\u884c\u6784\u9020\u51fd\u6570\u7684\u65f6\u5019\u62a5\u9519\u3002<\/p>\n\n\n\n

    \u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n\n\n\n

    \u6355\u83b7\u9519\u8bef\u5e76\u4e14\u5b9a\u65f6\u91cd\u8bd5\uff0c\u4e00\u822c\u7b2c\u4e00\u6b21\u5931\u8d25\u76842-3\u79d2\u540e\u5c31\u80fd\u521b\u5efa\u6210\u529f\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u80cc\u666f \u6700\u8fd1\u5728\u8d1f\u8d23\u6e38\u620f\u9879\u76ee\u7684\u5f00\u53d1\uff0c\u4e0d\u514d\u9700\u8981\u63a5\u89e6\u5230\u97f3\u9891\u76f8\u5173\u80fd\u529b\u7684\u5f00\u53d1\u3002\u5728\u79fb\u52a8\u7aef\u5b9e\u8df5\u540e\u624d\u4e86\u89e3\u5230\uff0ciOS\u4e0b\u7684Audio … \u7ee7\u7eed\u9605\u8bfb\u201cWebAudio\u4f7f\u7528\u5c0f\u7ed3\ud83e\udded\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2673","post","type-post","status-publish","format-standard","hentry","category-codetype"],"_links":{"self":[{"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/posts\/2673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/comments?post=2673"}],"version-history":[{"count":1,"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/posts\/2673\/revisions"}],"predecessor-version":[{"id":4336,"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/posts\/2673\/revisions\/4336"}],"wp:attachment":[{"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/media?parent=2673"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/categories?post=2673"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/7gugu.com\/index.php\/wp-json\/wp\/v2\/tags?post=2673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}