{"id":778,"date":"2026-01-25T09:50:23","date_gmt":"2026-01-25T01:50:23","guid":{"rendered":"https:\/\/ixriver.com\/?p=778"},"modified":"2026-01-25T09:50:23","modified_gmt":"2026-01-25T01:50:23","slug":"%e9%9f%b3%e9%a2%91%e9%87%87%e9%9b%86","status":"publish","type":"post","link":"https:\/\/www.v.ixriver.com\/?p=778","title":{"rendered":"\u97f3\u9891\u91c7\u96c6"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.v.ixriver.com\/?p=778\/#%E9%9F%B3%E9%A2%91%E9%87%87%E9%9B%86\" title=\"\u97f3\u9891\u91c7\u96c6\">\u97f3\u9891\u91c7\u96c6<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.v.ixriver.com\/?p=778\/#%E9%87%87%E9%9B%86%E8%AE%BE%E5%A4%87%E4%B8%8E%E6%8E%A5%E5%8F%A3\" title=\"\u91c7\u96c6\u8bbe\u5907\u4e0e\u63a5\u53e3\">\u91c7\u96c6\u8bbe\u5907\u4e0e\u63a5\u53e3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.v.ixriver.com\/?p=778\/#%E9%9F%B3%E9%A2%91%E6%A0%BC%E5%BC%8F\" title=\"\u97f3\u9891\u683c\u5f0f\">\u97f3\u9891\u683c\u5f0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.v.ixriver.com\/?p=778\/#%E9%87%87%E9%9B%86%E5%8F%82%E6%95%B0\" title=\"\u91c7\u96c6\u53c2\u6570\">\u91c7\u96c6\u53c2\u6570<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E9%9F%B3%E9%A2%91%E9%87%87%E9%9B%86\"><\/span>\u97f3\u9891\u91c7\u96c6<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"%E9%87%87%E9%9B%86%E8%AE%BE%E5%A4%87%E4%B8%8E%E6%8E%A5%E5%8F%A3\"><\/span>\u91c7\u96c6\u8bbe\u5907\u4e0e\u63a5\u53e3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u9ea6\u514b\u98ce\u7c7b\u578b<\/strong><br \/>\n&#8211; <strong>\u6a21\u62df\u9ea6\u514b\u98ce<\/strong>\uff1a\u4f20\u7edf\u9ea6\u514b\u98ce\uff0c\u9700\u8981ADC\u8f6c\u6362<br \/>\n&#8211; <strong>\u6570\u5b57\u9ea6\u514b\u98ce<\/strong>\uff1a\u76f4\u63a5\u8f93\u51fa\u6570\u5b57\u4fe1\u53f7\uff0cMEMS\u6280\u672f<br \/>\n&#8211; <strong>\u9635\u5217\u9ea6\u514b\u98ce<\/strong>\uff1a\u591a\u4e2a\u9ea6\u514b\u98ce\u7ec4\u6210\u9635\u5217\uff0c\u652f\u6301\u6ce2\u675f\u6210\u5f62\u3001\u964d\u566a<\/p>\n<p><strong>\u91c7\u96c6\u53c2\u6570<\/strong><br \/>\n&#8211; <strong>\u91c7\u6837\u7387<\/strong>\uff1a\u6bcf\u79d2\u91c7\u6837\u6b21\u6570\uff0c\u5e38\u89c1\u503c\uff1a8kHz\u300116kHz\u300144.1kHz\u300148kHz<br \/>\n&#8211; <strong>\u4f4d\u6df1<\/strong>\uff1a\u6bcf\u4e2a\u91c7\u6837\u70b9\u7684\u4f4d\u6570\uff0c\u5e38\u89c1\u503c\uff1a16bit\u300124bit\u300132bit<br \/>\n&#8211; <strong>\u58f0\u9053\u6570<\/strong>\uff1a\u5355\u58f0\u9053\uff08Mono\uff09\u3001\u7acb\u4f53\u58f0\uff08Stereo\uff09\u3001\u591a\u58f0\u9053\uff085.1\u30017.1\u7b49\uff09<\/p>\n<p><strong>\u91c7\u96c6API<\/strong><br \/>\n&#8211; <strong>Linux<\/strong>: ALSA\uff08Advanced Linux Sound Architecture\uff09<br \/>\n&#8211; <strong>macOS\/iOS<\/strong>: CoreAudio<br \/>\n&#8211; <strong>Windows<\/strong>: DirectSound\u3001WASAPI\uff08Windows Audio Session API\uff09<br \/>\n&#8211; <strong>Web<\/strong>: Web Audio API\u3001MediaDevices API<br \/>\n&#8211; <strong>Android<\/strong>: AudioRecord\u3001AudioManager<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E9%9F%B3%E9%A2%91%E6%A0%BC%E5%BC%8F\"><\/span>\u97f3\u9891\u683c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>PCM\u683c\u5f0f\uff08Pulse Code Modulation\uff09<\/strong><br \/>\n&#8211; \u672a\u538b\u7f29\u7684\u539f\u59cb\u97f3\u9891\u6570\u636e<br \/>\n&#8211; <strong>\u91c7\u6837\u7387<\/strong>\uff1a\u51b3\u5b9a\u9891\u7387\u8303\u56f4\uff08Nyquist\u5b9a\u7406\uff0c\u91c7\u6837\u7387\u9700\u22652\u500d\u6700\u9ad8\u9891\u7387\uff09<br \/>\n&#8211; <strong>\u4f4d\u6df1<\/strong>\uff1a\u51b3\u5b9a\u52a8\u6001\u8303\u56f4\u548c\u4fe1\u566a\u6bd4<br \/>\n&#8211; <strong>\u58f0\u9053<\/strong>\uff1a\u5355\u58f0\u9053\u6570\u636e\u91cf\u6700\u5c0f\uff0c\u7acb\u4f53\u58f0\u6570\u636e\u91cf\u7ffb\u500d<\/p>\n<p><strong>\u97f3\u9891\u9884\u5904\u7406<\/strong><br \/>\n&#8211; <strong>\u81ea\u52a8\u964d\u566a\uff08ANS\uff09<\/strong>\uff1a\u53bb\u9664\u80cc\u666f\u566a\u58f0\uff0c\u63d0\u9ad8\u4fe1\u566a\u6bd4<br \/>\n&#8211; <strong>\u56de\u58f0\u6d88\u9664\uff08AEC\uff09<\/strong>\uff1a\u53bb\u9664\u626c\u58f0\u5668\u64ad\u653e\u58f0\u97f3\u7684\u56de\u58f0<br \/>\n&#8211; <strong>\u81ea\u52a8\u589e\u76ca\u63a7\u5236\uff08AGC\uff09<\/strong>\uff1a\u81ea\u52a8\u8c03\u6574\u97f3\u91cf\uff0c\u4fdd\u6301\u7a33\u5b9a<br \/>\n&#8211; <strong>\u9759\u97f3\u68c0\u6d4b\uff08VAD\uff09<\/strong>\uff1a\u68c0\u6d4b\u662f\u5426\u6709\u58f0\u97f3\uff0c\u7528\u4e8e\u8282\u7701\u5e26\u5bbd<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E9%87%87%E9%9B%86%E5%8F%82%E6%95%B0\"><\/span>\u91c7\u96c6\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u91c7\u6837\u7387\u9009\u62e9<\/strong><br \/>\n&#8211; <strong>8kHz<\/strong>\uff1a\u7535\u8bdd\u8d28\u91cf\uff0c\u5e26\u5bbd\u8981\u6c42\u4f4e<br \/>\n&#8211; <strong>16kHz<\/strong>\uff1a\u8bed\u97f3\u901a\u8bdd\u5e38\u7528\uff0c\u8d28\u91cf\u4e0e\u5e26\u5bbd\u5e73\u8861<br \/>\n&#8211; <strong>44.1kHz<\/strong>\uff1aCD\u8d28\u91cf\uff0c\u97f3\u4e50\u64ad\u653e<br \/>\n&#8211; <strong>48kHz<\/strong>\uff1a\u4e13\u4e1a\u97f3\u9891\u3001\u89c6\u9891\u540c\u6b65<\/p>\n<p><strong>\u4f4d\u6df1\u9009\u62e9<\/strong><br \/>\n&#8211; <strong>16bit<\/strong>\uff1a\u5e38\u7528\uff0c\u52a8\u6001\u8303\u56f496dB\uff0c\u8db3\u591f\u5927\u591a\u6570\u573a\u666f<br \/>\n&#8211; <strong>24bit<\/strong>\uff1a\u4e13\u4e1a\u97f3\u9891\uff0c\u52a8\u6001\u8303\u56f4144dB<br \/>\n&#8211; <strong>32bit<\/strong>\uff1a\u6d6e\u70b9\u683c\u5f0f\uff0c\u7528\u4e8e\u97f3\u9891\u5904\u7406<\/p>\n<p><strong>\u58f0\u9053\u914d\u7f6e<\/strong><br \/>\n&#8211; <strong>\u5355\u58f0\u9053<\/strong>\uff1a\u8bed\u97f3\u901a\u8bdd\uff0c\u6570\u636e\u91cf\u6700\u5c0f<br \/>\n&#8211; <strong>\u7acb\u4f53\u58f0<\/strong>\uff1a\u97f3\u4e50\u3001\u89c6\u9891\uff0c\u63d0\u4f9b\u7a7a\u95f4\u611f<br \/>\n&#8211; <strong>\u591a\u58f0\u9053<\/strong>\uff1a\u73af\u7ed5\u58f0\uff0c\u6570\u636e\u91cf\u5927<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u97f3\u9891\u91c7\u96c6 \u91c7\u96c6\u8bbe\u5907\u4e0e\u63a5\u53e3 \u9ea6\u514b\u98ce\u7c7b\u578b &#8211; \u6a21\u62df\u9ea6\u514b\u98ce\uff1a\u4f20\u7edf\u9ea6\u514b\u98ce\uff0c\u9700\u8981ADC\u8f6c\u6362 &#8211;  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"blocksy_meta":[],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":""},"post_excerpt_stackable":"<p>\u76ee\u5f55 Toggle \u97f3\u9891\u91c7\u96c6\u91c7\u96c6\u8bbe\u5907\u4e0e\u63a5\u53e3\u97f3\u9891\u683c\u5f0f\u91c7\u96c6\u53c2\u6570 \u97f3\u9891\u91c7\u96c6 \u91c7\u96c6\u8bbe\u5907\u4e0e\u63a5\u53e3 \u9ea6\u514b\u98ce\u7c7b\u578b &#8211; \u6a21\u62df\u9ea6\u514b\u98ce\uff1a\u4f20\u7edf\u9ea6\u514b\u98ce\uff0c\u9700\u8981ADC\u8f6c\u6362 &#8211; \u6570\u5b57\u9ea6\u514b\u98ce\uff1a\u76f4\u63a5\u8f93\u51fa\u6570\u5b57\u4fe1\u53f7\uff0c&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/www.v.ixriver.com\/?cat=30\" rel=\"category\">\u97f3\u9891<\/a>","author_info":{"name":"admin","url":"https:\/\/www.v.ixriver.com\/?author=1"},"comments_num":"0 comments","_links":{"self":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/778"}],"collection":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=778"}],"version-history":[{"count":0,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/778\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.v.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}