{"id":15381,"date":"2025-06-22T13:09:02","date_gmt":"2025-06-22T13:09:02","guid":{"rendered":"https:\/\/sistc.com\/?p=15381"},"modified":"2025-06-22T13:12:05","modified_gmt":"2025-06-22T13:12:05","slug":"blog-mems-microphones-in-voice-activation","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/blog-mems-microphones-in-voice-activation\/","title":{"rendered":"MEMS \u9ea6\u514b\u98ce\u5728\u8bed\u97f3\u6fc0\u6d3b\u548c\u5173\u952e\u8bcd\u8bc6\u522b\u7cfb\u7edf\u4e2d\u7684\u4f5c\u7528"},"content":{"rendered":"<p>MEMS\uff08\u5fae\u673a\u7535\u7cfb\u7edf\uff09\u9ea6\u514b\u98ce\u662f\u4e00\u79cd\u5c0f\u578b\u3001\u4f4e\u529f\u8017\u7684\u97f3\u9891\u4f20\u611f\u5668\uff0c\u53ef\u53d1\u6325\u4ee5\u4e0b\u4f5c\u7528 <strong>\u5728\u58f0\u63a7\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u4f5c\u7528<\/strong>.\u4ece\u667a\u80fd\u624b\u673a\u5230\u667a\u80fd\u626c\u58f0\u5668\u548c\u53ef\u7a7f\u6234\u8bbe\u5907\uff0c\u8fd9\u4e9b\u5c0f\u5de7\u7684\u9ea6\u514b\u98ce\u80fd\u8ba9\u8bbe\u5907\u6301\u7eed\u76d1\u542c\u8bed\u97f3\u6307\u4ee4\uff0c\u540c\u65f6\u5c06\u80fd\u8017\u964d\u81f3\u6700\u4f4e\u3002<\/p><p>\u5728\u73b0\u4ee3\u8bed\u97f3\u4f18\u5148\u754c\u9762\u4e2d\uff0cMEMS \u9ea6\u514b\u98ce\u652f\u6301\u4ee5\u4e0b\u57fa\u672c\u529f\u80fd <strong>\u63a2\u97f3<\/strong>, <strong>\u5524\u9192\u8bcd\u8bc6\u522b<\/strong>\u4ee5\u53ca <strong>\u6307\u5411\u6027\u76d1\u542c<\/strong>.\u672c\u6587\u63a2\u8ba8\u4e86 MEMS \u9ea6\u514b\u98ce\u5982\u4f55\u4e0e\u97f3\u9891\u5904\u7406\u7b97\u6cd5\u548c\u673a\u5668\u5b66\u4e60\u76f8\u7ed3\u5408\uff0c\u5b9e\u73b0\u65e0\u7f1d\u3001\u667a\u80fd\u7684\u4eba\u673a\u4ea4\u4e92\u3002<\/p><p>\ud83d\udd17 \u63a2\u7d22 SISTC \u7684 MEMS \u9ea6\u514b\u98ce\uff1a<br><a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">https:\/\/sistc.com\/product-category\/mems-microphone\/<\/a><\/p><h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f MEMS \u9ea6\u514b\u98ce\uff1f<\/h2><p>MEMS \u9ea6\u514b\u98ce\u662f\u4e00\u79cd\u5229\u7528\u534a\u5bfc\u4f53\u5de5\u827a\u5236\u9020\u7684\u5fae\u578b\u58f0\u4f20\u611f\u5668\u3002\u4e0e\u4f20\u7edf\u9a7b\u6781\u4f53\u7535\u5bb9\u5f0f\u9ea6\u514b\u98ce\uff08ECM\uff09\u76f8\u6bd4\uff0cMEMS \u9ea6\u514b\u98ce\u5177\u6709\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p><ul class=\"wp-block-list\"><li>\u5c3a\u5bf8\u66f4\u5c0f\u3001\u5916\u5f62\u66f4\u4f4e<\/li>\n\n<li>\u964d\u4f4e\u529f\u8017<\/li>\n\n<li>\u5404\u5355\u5143\u95f4\u5177\u6709\u66f4\u597d\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027<\/li>\n\n<li>\u9ad8\u4fe1\u566a\u6bd4 (SNR)<\/li><\/ul><p>\u8fd9\u4e9b\u7279\u6027\u4f7f MEMS \u9ea6\u514b\u98ce\u6210\u4e3a\u4ee5\u4e0b\u9886\u57df\u7684\u7406\u60f3\u9009\u62e9 <strong>\u6c38\u8fdc\u5728\u7ebf\u7684\u8bed\u97f3\u63a5\u53e3<\/strong> \u5728\u8033\u585e\u3001\u7269\u8054\u7f51\u4f20\u611f\u5668\u6216\u53ef\u7a7f\u6234\u8bbe\u5907\u7b49\u53d7\u9650\u73af\u5883\u4e2d\u3002<\/p><h2 class=\"wp-block-heading\">\u58f0\u97f3\u63a2\u6d4b\u5524\u9192\u524d\u7684\u503e\u542c<\/h2><p>\u58f0\u97f3\u68c0\u6d4b\u662f <strong>\u7b2c\u4e00\u5c42<\/strong> \u7684\u8bed\u97f3\u6fc0\u6d3b\u7ba1\u9053\u3002\u5177\u6709\u9ad8\u4fe1\u566a\u6bd4\u548c\u7075\u654f\u5ea6\u7684 MEMS \u9ea6\u514b\u98ce\u53ef\u4f7f\u8bbe\u5907 <strong>\u5c06\u8bed\u97f3\u547d\u4ee4\u4e0e\u73af\u5883\u566a\u97f3\u533a\u5206\u5f00\u6765<\/strong>\u5373\u4f7f\u5728\u4f4e\u4fe1\u53f7\u73af\u5883\u4e2d\u4e5f\u662f\u5982\u6b64\u3002<\/p><p>\u4e00\u65e6\u68c0\u6d4b\u5230\u58f0\u97f3\uff0c\u5c31\u4f1a\u8fdb\u884c\u4fe1\u53f7\u9884\u5904\u7406\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u566a\u97f3\u6291\u5236<\/strong><\/li>\n\n<li><strong>\u81ea\u52a8\u589e\u76ca\u63a7\u5236 (AGC)<\/strong><\/li>\n\n<li><strong>\u56de\u58f0\u6d88\u9664 (AEC)<\/strong><\/li><\/ul><p>\u7136\u540e\uff0c\u50cf <strong>\u5feb\u901f\u5085\u7acb\u53f6\u53d8\u6362 (FFT)<\/strong> \u6216 <strong>\u6885\u5c14\u9891\u7387\u5012\u9891\u8c31\u7cfb\u6570\uff08MFCC\uff09<\/strong> \u7528\u4e8e\u63d0\u53d6\u5173\u952e\u97f3\u9891\u7279\u5f81\uff0c\u4ee5\u4fbf\u8fdb\u4e00\u6b65\u5206\u6790\u3002<\/p><p>\ud83d\udcd8 \u4e86\u89e3\u66f4\u591a\uff1a <a href=\"https:\/\/towardsdatascience.com\/mfcc-for-feature-extraction-7f5ccf58f7d8\">MFCC \u5982\u4f55\u5728\u8bed\u97f3\u8bc6\u522b\u4e2d\u53d1\u6325\u4f5c\u7528 - \u8fc8\u5411\u6570\u636e\u79d1\u5b66<\/a><\/p><h2 class=\"wp-block-heading\">\u5173\u952e\u8bcd\u8bc6\u522b\uff1a\u5f53\u5524\u9192\u8bcd\u89e6\u53d1\u884c\u52a8\u65f6<\/h2><p>\u68c0\u6d4b\u5230\u6709\u6548\u97f3\u9891\u540e\uff0c\u4e0b\u4e00\u6b65\u662f <strong>\u5173\u952e\u8bcd\u641c\u7d22<\/strong>\u4eba\u5de5\u667a\u80fd\u6a21\u578b\u901a\u8fc7\u5206\u6790\u4fe1\u53f7\u6765\u8bc6\u522b\u9884\u5b9a\u4e49\u7684\u89e6\u53d1\u77ed\u8bed\uff0c\u5982<\/p><ul class=\"wp-block-list\"><li>\"\u563f Siri\"<\/li>\n\n<li>\"OK \u8c37\u6b4c\"<\/li>\n\n<li>\"\u4e9a\u5386\u514b\u838e\"<\/li><\/ul><p>\u8fd9\u4e9b\u7cfb\u7edf\u4f7f\u7528 <strong>\u673a\u5668\u5b66\u4e60\u548c\u795e\u7ecf\u7f51\u7edc<\/strong> \u5728\u6570\u5343\u4e2a\u8bed\u97f3\u6837\u672c\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u8bad\u7ec3\uff0c\u4ee5\u8bc6\u522b\u547d\u4ee4\uff0c\u5c3d\u7ba1 <strong>\u53e3\u97f3\u3001\u97f3\u8c03\u548c\u80cc\u666f\u566a\u97f3<\/strong>.<\/p><p>\u9ad8 SNR MEMS \u9ea6\u514b\u98ce\u53ef\u786e\u4fdd\u8bed\u97f3\u8f93\u5165\u8db3\u591f\u7eaf\u51c0\uff0c\u8db3\u4ee5 <strong>\u51cf\u5c11\u8bef\u62a5\uff0c\u63d0\u9ad8\u51c6\u786e\u6027<\/strong>.<\/p><h2 class=\"wp-block-heading\">\u6ce2\u675f\u6210\u5f62\u548c\u591a\u9ea6\u514b\u98ce\u9635\u5217<\/h2><p>\u8bb8\u591a\u58f0\u63a7\u7cfb\u7edf\u73b0\u5728\u4f7f\u7528 <strong>\u9ea6\u514b\u98ce\u9635\u5217<\/strong>-\u591a\u4e2a MEMS \u9ea6\u514b\u98ce\u534f\u540c\u5de5\u4f5c\uff0c\u6355\u6349\u5b9a\u5411\u97f3\u9891\u3002\u8fd9\u79cd\u6280\u672f\u88ab\u79f0\u4e3a <strong>\u6ce2\u675f\u6210\u5f62<\/strong>\u8fd9\u6837\uff0c\u7cfb\u7edf\u5c31\u80fd\u5c06\u626c\u58f0\u5668\u7684\u58f0\u97f3\u4e0e\u5468\u56f4\u7684\u566a\u97f3\u6216\u7ade\u4e89\u58f0\u6e90\u9694\u79bb\u5f00\u6765\u3002<\/p><p>\u6ce2\u675f\u6210\u5f62\u5f97\u5230\u6539\u5584\uff1a<\/p><ul class=\"wp-block-list\"><li>\u8fdc\u573a\u8bed\u97f3\u6355\u6349<\/li>\n\n<li>\u5b9a\u5411\u8bed\u97f3\u805a\u7126<\/li>\n\n<li>\u73af\u5883\u566a\u58f0\u6291\u5236<\/li><\/ul><p>\ud83d\udcd8 \u6709\u5173\u66f4\u6df1\u5165\u7684\u6280\u672f\u53c2\u8003\uff0c\u8bf7\u53c2\u89c1 <a href=\"https:\/\/www.analog.com\/en\/technical-articles\/mems-microphone-arrays-and-beamforming.html\">\u6a21\u62df\u5668\u4ef6\u516c\u53f8 MEMS \u9635\u5217\u548c\u6ce2\u675f\u6210\u5f62\u6307\u5357<\/a><\/p><h2 class=\"wp-block-heading\">\u7531 MEMS \u9ea6\u514b\u98ce\u652f\u6301\u7684\u8bed\u97f3\u4f18\u5148\u5e94\u7528<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5e94\u7528<\/th><th>MEMS \u9ea6\u514b\u98ce\u7684\u4f5c\u7528<\/th><\/tr><\/thead><tbody><tr><td>\u667a\u80fd\u626c\u58f0\u5668<\/td><td>\u5524\u9192\u8bcd\u68c0\u6d4b\u3001\u8fdc\u573a\u8bc6\u522b<\/td><\/tr><tr><td>\u667a\u80fd\u624b\u673a<\/td><td>\u59cb\u7ec8\u5728\u7ebf\u7684\u8bed\u97f3\u52a9\u624b\uff0c\u56de\u58f0\u6d88\u9664<\/td><\/tr><tr><td>\u53ef\u7a7f\u6234\u8bbe\u5907\u548c\u8033\u585e<\/td><td>\u4f4e\u529f\u8017\u97f3\u9891\u62fe\u53d6\u3001\u5173\u952e\u8bcd\u6fc0\u6d3b<\/td><\/tr><tr><td>\u6c7d\u8f66\u7cfb\u7edf<\/td><td>\u52a8\u6001\u73af\u5883\u4e2d\u7684\u6297\u566a\u6307\u4ee4\u8f93\u5165<\/td><\/tr><tr><td>\u667a\u80fd\u5bb6\u5c45\u8bbe\u5907<\/td><td>\u901a\u8fc7\u51c6\u786e\u7684\u8bed\u97f3\u89e3\u6790\u8fdb\u884c\u8fde\u7eed\u8046\u542c<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u9ad8\u7ea7\u97f3\u9891\u5904\u7406\u6280\u672f<\/h2><p>\u8bed\u97f3\u6fc0\u6d3b\u7cfb\u7edf\u901a\u5e38\u96c6\u6210\u6709 MEMS \u9ea6\u514b\u98ce\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u58f0\u5b66\u56de\u58f0\u6d88\u9664\uff08AEC\uff09<\/strong><\/li>\n\n<li><strong>\u964d\u566a (NR)<\/strong><\/li>\n\n<li><strong>\u81ea\u52a8\u8bed\u97f3\u8bc6\u522b (ASR)<\/strong><\/li>\n\n<li><strong>\u81ea\u7136\u8bed\u8a00\u7406\u89e3\uff08NLU\uff09<\/strong><\/li><\/ul><p>SISTC\u7684 <strong>\u9ad8\u54c1\u8d28 MEMS \u9ea6\u514b\u98ce\u4e0e\u57fa\u4e8e\u4eba\u5de5\u667a\u80fd\u7684\u97f3\u9891\u5904\u7406\u4e4b\u95f4\u7684\u534f\u540c\u6548\u5e94<\/strong> \u4f7f\u8bbe\u5907\u80fd\u591f\u66f4\u81ea\u7136\u3001\u66f4\u53ef\u9760\u5730\u89e3\u8bfb\u4eba\u7c7b\u8bed\u97f3\u3002<\/p><h2 class=\"wp-block-heading\">\u7ed3\u8bba<\/h2><p>\u5fae\u673a\u7535\u7cfb\u7edf\uff08MEMS\uff09\u9ea6\u514b\u98ce\u662f\u5f53\u4eca <strong>\u8bed\u97f3\u65f6\u4ee3<\/strong>.\u5b83\u4eec\u4f53\u79ef\u5c0f\u5de7\u3001\u529f\u8017\u4f4e\u3001\u97f3\u9891\u6027\u80fd\u5353\u8d8a\uff0c\u662f\u4ee5\u4e0b\u8bbe\u5907\u7684\u7406\u60f3\u524d\u7aef\u8bbe\u5907 <strong>\u63a2\u97f3<\/strong> \u4e0e <strong>\u5173\u952e\u8bcd\u8bc6\u522b<\/strong> \u5728\u667a\u80fd\u8bbe\u5907\u4e2d\u3002<\/p><p>\u7ed3\u5408\u5148\u8fdb\u7684\u4fe1\u53f7\u5904\u7406\u548c\u4eba\u5de5\u667a\u80fd\u7b97\u6cd5\uff0cMEMS \u9ea6\u514b\u98ce\u53ef\u8ba9\u8bbe\u5907\u5524\u9192\u3001\u7406\u89e3\u5e76\u54cd\u5e94\u8bed\u97f3\u6307\u4ee4--\u8fd9\u5c31\u662f MEMS \u9ea6\u514b\u98ce\u3002<strong>\u4f7f\u4ea4\u4e92\u66f4\u5feb\u3001\u65e0\u9700\u52a8\u624b\u3001\u66f4\u76f4\u89c2<\/strong>.<\/p><p>\ud83d\udd17 \u6d4f\u89c8\u6765\u81ea SISTC \u7684\u9ad8\u6027\u80fd MEMS \u9ea6\u514b\u98ce\uff1a<br>\ud83d\udc49 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">https:\/\/sistc.com\/product-category\/mems-microphone\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>MEMS\uff08\u5fae\u673a\u7535\u7cfb\u7edf\uff09\u9ea6\u514b\u98ce\u662f\u4e00\u79cd\u5c0f\u578b\u3001\u4f4e\u529f\u8017\u97f3\u9891\u4f20\u611f\u5668\uff0c\u5728\u58f0\u63a7\u7cfb\u7edf\u4e2d\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4ece\u667a\u80fd\u624b\u673a\u5230\u667a\u80fd\u626c\u58f0\u5668\u548c\u53ef\u7a7f\u6234\u8bbe\u5907\uff0c\u8fd9\u4e9b\u5c0f\u5de7\u7684\u9ea6\u514b\u98ce\u90fd\u80fd\u8ba9\u8bbe\u5907 [...]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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Learn about sound detection, signal processing, and AI integration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sistc.com\/zh\/blog-mems-microphones-in-voice-activation\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Role of MEMS Microphones in Voice Activation and Keyword Recognition Systems - SILICON SOURCE\" \/>\n<meta property=\"og:description\" content=\"Discover how MEMS microphones enable voice activation and keyword recognition in smart devices. 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