{"id":15119,"date":"2025-05-19T12:43:23","date_gmt":"2025-05-19T12:43:23","guid":{"rendered":"https:\/\/sistc.com\/?p=15119"},"modified":"2025-05-19T12:43:25","modified_gmt":"2025-05-19T12:43:25","slug":"revolutionizing-voiceprint-recognition-with-mems-mic-technology","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/revolutionizing-voiceprint-recognition-with-mems-mic-technology\/","title":{"rendered":"\u5229\u7528 MEMS MIC \u6280\u672f\u5b9e\u73b0\u58f0\u7eb9\u8bc6\u522b\u9769\u547d"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><em>\u56fe\u73b0\u4ee3\u8bed\u97f3\u8bbe\u5907\uff08\u8033\u585e\u3001\u52a9\u624b\u3001\u667a\u80fd\u5bb6\u5c45\u7cfb\u7edf\uff09\u5229\u7528\u5148\u8fdb\u7684 MEMS MIC \u9635\u5217\u5b9e\u73b0\u865a\u62df\u52a9\u624b\u3001\u964d\u566a\u548c\u4e8b\u4ef6\u68c0\u6d4b\u7b49\u529f\u80fd\u3002<\/em> MEMS \u9ea6\u514b\u98ce\u5df2\u6210\u4e3a\u58f0\u7eb9\uff08\u626c\u58f0\u5668\uff09\u8bc6\u522b\u7cfb\u7edf\u7684\u5173\u952e\u524d\u7aef\uff0c\u53ef\u63d0\u4f9b\u751f\u7269\u8bc6\u522b\u7b97\u6cd5\u6240\u9700\u7684\u9ad8\u8d28\u91cf\u97f3\u9891\u91c7\u96c6<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><a href=\"https:\/\/www.digikey.com\/en\/articles\/an-introduction-to-beamforming-with-mems-microphones#:~:text=Microphones%20and%20Directionality\" target=\"_blank\" rel=\"noreferrer noopener\"><sub>digikey.com<\/sub><\/a><sub><a href=\"https:\/\/www.eetimes.eu\/the-growing-importance-of-innovative-mems-microphones\/#:~:text=,video%2Faudio%20conferencing%20and%20medical%20tracking\" target=\"_blank\" rel=\"noreferrer noopener\">eetimes.eu<\/a>.<\/sub> <\/mark>\u7531\u4e8e\u91c7\u7528\u4e86\u6676\u5706\u7ea7\u534a\u5bfc\u4f53\u5236\u9020\u5de5\u827a\uff0c\u8fd9\u4e9b\u7845\u9ea6\u514b\u98ce\u7ed3\u6784\u6781\u5176\u7d27\u51d1\uff0c\u529f\u8017\u6781\u4f4e\uff0c\u4f46\u7075\u654f\u5ea6\u548c\u4fe1\u566a\u6bd4\u5374\u975e\u5e38\u9ad8\u3002\u901a\u8fc7\u5728\u82af\u7247\u4e0a\u5c06\u58f0\u97f3\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\uff0cMEMS MIC \u6d88\u9664\u4e86\u6a21\u62df\u5e72\u6270\uff0c\u5b9e\u73b0\u4e86\u7d27\u5bc6\u540c\u6b65\u7684\u591a\u9ea6\u514b\u98ce\u9635\u5217\u3002MEMS MIC \u8bbe\u8ba1\u4e2d\u7684\u8fd9\u4e9b\u521b\u65b0\u5171\u540c\u76f4\u63a5\u8f6c\u5316\u4e3a\u66f4\u7cbe\u786e\u7684\u58f0\u7eb9\u91c7\u96c6\u548c\u8bc6\u522b--\u8fd9\u5bf9\u4e8e\u6d88\u8d39\u548c\u6c7d\u8f66\u5e94\u7528\u4e2d\u57fa\u4e8e\u8bed\u97f3\u7684\u5b89\u5168\u8ba4\u8bc1\u548c\u514d\u63d0\u63a7\u5236\u81f3\u5173\u91cd\u8981\u3002<\/p><\/blockquote><figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"900\" height=\"593\" src=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/27923495-8926-4de4-9407-8aa99be32f74.png\" alt=\"\" class=\"wp-image-15120\" style=\"width:477px;height:auto\" srcset=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/27923495-8926-4de4-9407-8aa99be32f74.png 900w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/27923495-8926-4de4-9407-8aa99be32f74-300x198.png 300w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/27923495-8926-4de4-9407-8aa99be32f74-768x506.png 768w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/27923495-8926-4de4-9407-8aa99be32f74-18x12.png 18w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/27923495-8926-4de4-9407-8aa99be32f74-600x395.png 600w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure><h2 class=\"wp-block-heading\">\u7528\u4e8e\u8bed\u97f3\u751f\u7269\u8bc6\u522b\u7684\u9ad8\u6027\u80fd MEMS \u9ea6\u514b\u98ce<\/h2><p>\u58f0\u7eb9\u8bc6\u522b\uff08\u4e5f\u79f0\u626c\u58f0\u5668\u8bc6\u522b\uff09\u662f\u4e00\u79cd\u751f\u7269\u8bc6\u522b\u65b9\u6cd5\uff0c\u5b83\u5229\u7528\u4e00\u4e2a\u4eba\u72ec\u7279\u7684\u58f0\u97f3\u7279\u5f81\uff08\u5982\u97f3\u9ad8\u3001\u97f3\u8c03\u548c\u97f3\u8272\uff09\u6765\u9a8c\u8bc1\u8eab\u4efd\u3002\u8981\u5b9e\u73b0\u53ef\u9760\u7684\u58f0\u7eb9\u5339\u914d\uff0c\u8f93\u5165\u97f3\u9891\u5fc5\u987b\u4fdd\u7559\u8bf4\u8bdd\u8005\u58f0\u97f3\u7684\u5fae\u5999\u9891\u7387\u548c\u65f6\u95f4\u7ec6\u8282\uff0c\u5e76\u5c3d\u91cf\u51cf\u5c11\u9644\u52a0\u566a\u58f0\u6216\u5931\u771f\u3002\u9ad8\u6027\u80fd MEMS MIC \u53ef\u4ee5\u6ee1\u8db3\u8fd9\u4e9b\u8981\u6c42\uff1a\u5176\u6781\u4f4e\u7684\u81ea\u566a\u58f0\u548c\u5bbd\u52a8\u6001\u8303\u56f4\u53ef\u4ee5\u8ba9\u8bed\u97f3\u5728\u4fe1\u53f7\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\u3002\u4f8b\u5982\uff0c\u6700\u5148\u8fdb\u7684 MEMS \u9ea6\u514b\u98ce\u8bbe\u8ba1\u53ef\u5b9e\u73b0 65-70 dB(A) \u6216\u66f4\u9ad8\u7684\u4fe1\u566a\u6bd4\uff0c\u8fd9\u610f\u5473\u7740\u9ea6\u514b\u98ce\u7684\u672c\u5e95\u566a\u58f0\uff08\u901a\u5e38\u4f4e\u4e8e 25 dB SPL\uff09\u8fdc\u8fdc\u4f4e\u4e8e\u5178\u578b\u7684\u8bed\u97f3\u7535\u5e73\u3002\u5b9e\u9645\u4e0a\uff0c\u8fd9\u610f\u5473\u7740\u9ea6\u514b\u98ce \"\u4e0d\u518d\u662f\u97f3\u9891\u94fe\u4e2d\u7684\u9650\u5236\u56e0\u7d20\"\u3001 <strong>\u63d0\u9ad8\u8bed\u97f3\u8bc6\u522b\u7b97\u6cd5\u7684\u6027\u80fd<\/strong> \u6b64\u5916\uff0c6-20 \u00b5s \u7684\u5feb\u901f\u6a21\u6570\u8f6c\u6362\u548c\u5404\u5355\u5143\u4e4b\u95f4\u5339\u914d\u7684\u9891\u7387\u54cd\u5e94\u7b49\u529f\u80fd\u786e\u4fdd\u5373\u4f7f\u662f\u8fdc\u573a\u6216\u8033\u8bed\u8bed\u97f3\u4e5f\u80fd\u88ab\u5fe0\u5b9e\u6355\u6349\u3002\u8fd9\u4e9b\u8fdb\u6b65\u4f7f\u58f0\u7eb9\u7cfb\u7edf\u5373\u4f7f\u5728\u73af\u5883\u566a\u58f0\u6216\u626c\u58f0\u5668\u8f83\u8fdc\u7684\u60c5\u51b5\u4e0b\u4e5f\u80fd\u53ef\u9760\u5730\u5de5\u4f5c<a href=\"https:\/\/www.digikey.com\/en\/articles\/how-mems-microphones-aid-sound-detection#:~:text=Voice,the%20sensitivity%20tolerance%20becomes%20critical\" target=\"_blank\" rel=\"noreferrer noopener\">digikey.<\/a><\/p><h2 class=\"wp-block-heading\">\u8d85\u9ad8\u4fe1\u566a\u6bd4\u548c\u7075\u654f\u5ea6<\/h2><ul class=\"wp-block-list\"><li><strong>\u6781\u4f4e\u566a\u58f0\uff08\u9ad8\u4fe1\u566a\u6bd4\uff09\uff1a<\/strong> \u73b0\u4ee3 MEMS \u9ea6\u514b\u98ce\u7684\u4fe1\u566a\u6bd4\u8fbe\u5230\u540c\u7c7b\u6700\u4f73\u6c34\u5e73\u3002\u4f7f\u7528\u53cc\u80cc\u677f\u632f\u819c\u7684\u8bbe\u8ba1\uff08\u7075\u611f\u6765\u81ea\u5f55\u97f3\u68da\u7535\u5bb9\u5f0f\u8bdd\u7b52\uff09\u5373\u4f7f\u5728 128 dB SPL \u65f6\uff0c\u52a8\u6001\u8303\u56f4\u4e5f\u80fd\u8fbe\u5230 ~105 dB\uff0c\u5931\u771f &lt;1%<a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Infineon%27s%20Dual%20Backplate%20MEMS%20technology,microphone%20%28array\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Features%20%E2%80%A2%20Dynamic%20range%20of,%C2%B1%202%C2%B0%20%401kHz\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>.\u5b9e\u9645\u4e0a\uff0c\u9ad8\u7aef MEMS MIC\uff08\u5982\u82f1\u98de\u51cc IM69D130\uff09\u7684\u7b49\u6548\u672c\u5e95\u566a\u58f0\u7ea6\u4e3a 25 dB SPL\uff08A \u52a0\u6743\uff09\uff0c\u4fe1\u566a\u6bd4\u7ea6\u4e3a 69 dB\uff08A\uff09\u3002<a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=With%20its%20low%20equivalent%20noise,performance%20of%20voice%20recognition%20algorithms\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>.\u8fd9\u79cd\u4f4e\u566a\u58f0\u672c\u5e95\u610f\u5473\u7740\u58f0\u7eb9\u8bc6\u522b\u7cfb\u7edf\u53ef\u4ee5\u63d0\u53d6\u5fae\u5c0f\u7684\u58f0\u97f3\u7279\u5f81\uff0c\u800c\u4e0d\u4f1a\u4ea7\u751f\u63a9\u853d\u3002\u5373\u4f7f\u5728\u4e2d\u5ea6\u566a\u97f3\u6216\u8ddd\u79bb\u8f83\u8fdc\u7684\u60c5\u51b5\u4e0b\uff0c\u8bed\u97f3\u4fe1\u53f7\u4e5f\u80fd\u4fdd\u6301\u5728\u9ea6\u514b\u98ce\u566a\u97f3\u4e4b\u4e0a\uff0c\u4ece\u800c\u63d0\u9ad8\u5339\u914d\u7684\u51c6\u786e\u6027\u3002<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>\u5bbd\u52a8\u6001\u8303\u56f4<\/strong> \u7531\u4e8e\u91c7\u7528\u4e86\u521b\u65b0\u7684 MEMS \u4f20\u611f\u5668\u548c ASIC \u8bbe\u8ba1\uff0c\u8fd9\u4e9b\u8bdd\u7b52\u65e2\u80fd\u5904\u7406\u975e\u5e38\u67d4\u548c\u7684\u58f0\u97f3\uff0c\u4e5f\u80fd\u5904\u7406\u975e\u5e38\u54cd\u4eae\u7684\u58f0\u97f3\u3002\u4f8b\u5982\uff0c105 dB \u7684\u52a8\u6001\u8303\u56f4\u53ef\u4ee5\u6355\u6349\u4f4e\u58f0\u548c\u5927\u58f0\u7684\u58f0\u97f3\uff0c\u800c\u4e0d\u4f1a\u51fa\u73b0\u524a\u6ce2\u3002\u58f0\u97f3\u8fc7\u8f7d\u70b9\u901a\u5e38\u8d85\u8fc7 120-130 dB SPL<a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Features%20%E2%80%A2%20Dynamic%20range%20of,%C2%B1%202%C2%B0%20%401kHz\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>\u8fd9\u6837\u5c31\u80fd\u786e\u4fdd\u5608\u6742\u7684\u566a\u97f3\uff08\u8b66\u7b1b\u58f0\u3001\u91cd\u578b\u673a\u68b0\u58f0\uff09\u4e0d\u4f1a\u626d\u66f2\u4fe1\u53f7\u3002\u8fd9\u4e00\u5bbd\u5e7f\u7684\u8303\u56f4\u4fdd\u7559\u4e86\u5168\u90e8\u58f0\u7eb9\u7279\u5f81--\u4ece\u4f4e\u80fd\u91cf\u5589\u97f3\u5230\u9ad8\u9891\u549d\u58f0--\u751f\u7269\u8bc6\u522b\u7b97\u6cd5\u5229\u7528\u8fd9\u4e9b\u7279\u5f81\u6765\u533a\u5206\u8bf4\u8bdd\u8005\u3002<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>\u4e25\u683c\u7684\u7075\u654f\u5ea6\u5339\u914d<\/strong> \u7cbe\u5bc6\u534a\u5bfc\u4f53\u5236\u9020\u4ea7\u751f\u7684 MEMS \u9ea6\u514b\u98ce\u5177\u6709\u975e\u5e38\u4e25\u683c\u7684\u7075\u654f\u5ea6\u548c\u76f8\u4f4d\u516c\u5dee\uff08\u7ea6\u4e3a \u00b10.5-1.0 dB\uff09\u3002<a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=%E2%80%A2%20Sensitivity%20,frequency%20roll%20o%C8%84%20at%2028Hz\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>.\u5728\u591a\u9ea6\u514b\u98ce\u6ce2\u675f\u6210\u5f62\u9635\u5217\u4e2d\uff0c\u8fd9\u79cd\u5747\u5300\u6027\u81f3\u5173\u91cd\u8981\uff1a\u5b83\u80fd\u786e\u4fdd\u6240\u6709\u901a\u9053\u90fd\u80fd\u5e73\u7b49\u5730 \"\u542c\u5230 \"\u626c\u58f0\u5668\uff0c\u4ece\u800c\u7b80\u5316\u4fe1\u53f7\u6821\u51c6\u3002\u5728\u5904\u7406\u6765\u81ea\u9635\u5217\u7684\u58f0\u7eb9\u4fe1\u53f7\u65f6\uff0c\u5404\u9ea6\u514b\u98ce\u5339\u914d\u7684\u7075\u654f\u5ea6\u548c\u5e73\u5766\u7684\u9891\u7387\u54cd\u5e94\u610f\u5473\u7740\u9635\u5217\u8f93\u51fa\u66f4\u51c6\u786e\u3001\u66f4\u53ef\u9884\u6d4b\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u8bc6\u522b\u6027\u80fd\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">\u8282\u80fd\u8bbe\u8ba1<\/h2><ul class=\"wp-block-list\"><li><strong>\u8d85\u4f4e\u7535\u6d41\uff1a<\/strong> \u8bb8\u591a\u6570\u5b57 MEMS \u9ea6\u514b\u98ce\u90fd\u91c7\u7528\u4e86\u529f\u8017\u4f18\u5316\u6a21\u5f0f\uff0c\u4ee5\u652f\u6301\u59cb\u7ec8\u5728\u7ebf\u76d1\u542c\u3002\u4f8b\u5982\uff0c\u4e00\u4e9b\u8bbe\u5907\u5728\u4e3b\u52a8\u76d1\u542c\u6a21\u5f0f\u4e0b\u7684\u529f\u8017\u4ec5\u4e3a\u51e0\u767e\u5fae\u5b89\u6216\u66f4\u4f4e\uff0c\u5f85\u673a\u6a21\u5f0f\u4e0b\u7684\u529f\u8017\u53ef\u964d\u81f3\u4e2a\u4f4d\u6570\u5fae\u5b89\u3002\u5b9e\u9645\u4e0a\uff0c\u8bed\u97f3\u89e6\u53d1\u7cfb\u7edf\u53ef\u4f7f MEMS MIC \u59cb\u7ec8\u4fdd\u6301\u4f9b\u7535\u72b6\u6001\uff08\u8046\u542c\u5524\u9192\u8bcd\uff09\uff0c\u800c\u4e0d\u4f1a\u660e\u663e\u8017\u5c3d\u667a\u80fd\u624b\u673a\u6216\u7269\u8054\u7f51\u7535\u6c60\u7684\u7535\u91cf\u3002<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>\u5feb\u901f\u5524\u9192<\/strong> \u7531\u4e8e\u8bed\u97f3\u9a8c\u8bc1\u9700\u8981\u6355\u6349\u6574\u4e2a\u53e3\u4ee4\u6216\u77ed\u8bed\uff0c\u56e0\u6b64\u542f\u52a8\u65f6\u95f4\u975e\u5e38\u91cd\u8981\u3002\u5148\u8fdb\u7684 MEMS MIC \u5728\u63a5\u6536\u5230\u65f6\u949f\u6216\u7535\u6e90\u89e6\u53d1\u540e\u7ea6 20-50 \u00b5s \u5185\u5373\u53ef\u5524\u9192\uff0c\u786e\u4fdd\u4e0d\u4f1a\u9519\u8fc7\u4efb\u4f55\u8bed\u97f3\u7247\u6bb5\u3002\u8fd9\u610f\u5473\u7740\u58f0\u7eb9\u8bc6\u522b\u7cfb\u7edf\u53ef\u4ee5\u4fdd\u6301\u6df1\u5ea6\u7761\u7720\u72b6\u6001\uff08\u8282\u7701\u7535\u80fd\uff09\uff0c\u5e76\u5728\u8bed\u97f3\u5f00\u59cb\u65f6\u7acb\u5373\u505a\u51fa\u54cd\u5e94\u3002\u603b\u4e4b\uff0c\u5fae\u5b89\u7ea7\u5f85\u673a\u548c\u5feb\u901f\u5524\u9192\u7684\u7ec4\u5408\u4f7f MEMS MIC \u6210\u4e3a\u7535\u6c60\u4f9b\u7535\u7684\u5b89\u5168\u8bbe\u5907\u548c\u6301\u7eed\u7b49\u5f85\u8bed\u97f3\u8f93\u5165\u7684\u53ef\u7a7f\u6234\u8bbe\u5907\u7684\u7406\u60f3\u9009\u62e9\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">MEMS MIC \u89e3\u51b3\u65b9\u6848\u7684\u96c6\u6210\u4f18\u52bf<\/h2><ul class=\"wp-block-list\"><li><strong>\u5168\u6570\u5b57\u4fe1\u53f7\u8def\u5f84<\/strong> \u4e00\u9879\u5173\u952e\u521b\u65b0\u662f\u5c06 ADC \u548c\u6570\u5b57\u6ee4\u6ce2\u5668\u96c6\u6210\u5728\u540c\u4e00\u82af\u7247\u4e0a\u3002\u6570\u5b57 MEMS \u9ea6\u514b\u98ce\u76f4\u63a5\u8f93\u51fa PDM \u6216 I\u00b2S \u97f3\u9891\uff0c\u6d88\u9664\u4e86\u5608\u6742\u7684\u6a21\u62df\u8def\u5f84\u3002\u901a\u8fc7\u5c06\u6a21\u6570\u8f6c\u6362\u79fb\u81f3\u9ea6\u514b\u98ce\u5185\u90e8\uff0c\u8bbe\u5907\u53ef\u5411\u4e3b\u673a\u5904\u7406\u5668\u63d0\u4f9b\u5e72\u51c0\u7684\u6570\u5b57\u63a5\u53e3\uff0c\u4ece\u800c\u5927\u5927\u51cf\u5c11\u4e86 EMI \u548c\u5c04\u9891\u5bf9\u4fe1\u53f7\u7684\u5e72\u6270--\u4f8b\u5982\uff0c\u9ea6\u514b\u98ce\u5230 ADC \u7684\u5bfc\u7ebf\u65e0\u9700\u5728 Wi-Fi \u6216\u84dd\u7259\u5929\u7ebf\u9644\u8fd1\u4f20\u8f93\u6a21\u62df\u7535\u5e73\u3002\u5b9e\u9645\u4e0a\uff0c\u8fd9\u610f\u5473\u7740\u8bbe\u5907\u53ef\u4ee5\u5c06 MEMS MIC \u653e\u5728\u4efb\u4f55\u5730\u65b9\uff08Wi-Fi \u9644\u8fd1\u3001\u957f\u7535\u7f06\u4e0a\u7b49\uff09\uff0c\u800c\u4e0d\u4f1a\u964d\u4f4e\u97f3\u9891\u8d28\u91cf\u3002\u5b83\u8fd8\u7b80\u5316\u4e86\u7535\u8def\u677f\u8bbe\u8ba1\uff1a\u65e0\u9700\u5355\u72ec\u7684 ADC \u6216\u4f4e\u566a\u58f0\u653e\u5927\u5668\uff0c\u8282\u7701\u4e86\u7a7a\u95f4\u548c\u6210\u672c\uff0c\u540c\u65f6\u63d0\u9ad8\u4e86\u53ef\u9760\u6027\u3002<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>\u5916\u5f62\u5c0f\u5de7\uff1a<\/strong> MEMS MIC \u5c06\u58f0\u5b66\u4f20\u611f\u5668\u548c\u7535\u5b50\u5143\u4ef6\u5c01\u88c5\u5728\u51e0\u7acb\u65b9\u6beb\u7c73\u7684\u7a7a\u95f4\u5185\uff08\u5178\u578b\u5c01\u88c5\u4e3a 4\u00d73\u00d71.2 \u6beb\u7c73\uff09\u3002\u8fd9\u79cd\u5fae\u5c0f\u7684\u5c3a\u5bf8\u5141\u8bb8\u5728\u5c0f\u578b\u5370\u5237\u7535\u8def\u677f\u4e0a\u5b89\u88c5\u591a\u4e2a\u9ea6\u514b\u98ce\uff0c\u4ee5\u5b9e\u73b0\u6ce2\u675f\u6210\u5f62\u548c\u566a\u58f0\u6d88\u9664\u3002\u5bf9\u4e8e\u58f0\u7eb9\u8bc6\u522b\u7cfb\u7edf\uff0c\u53ef\u5c06\u591a\u4e2a MEMS \u9ea6\u514b\u98ce\u6392\u5217\u5728\u4e00\u8d77\uff0c\u5bf9\u51c6\u626c\u58f0\u5668\u7684\u65b9\u5411\u6216\u964d\u4f4e\u73af\u5883\u566a\u58f0\u3002\u5c3d\u7ba1\u5c3a\u5bf8\u8f83\u5c0f\uff0c\u4f46\u8fd9\u4e9b\u9ea6\u514b\u98ce\u901a\u5e38\u5305\u62ec\u5185\u7f6e\u673a\u68b0\u6ee4\u6ce2\u5668\uff08\u7aef\u53e3\uff09\u548c\u575a\u56fa\u7684\u5c01\u88c5\u3002\u8bb8\u591a MEMS \u5c01\u88c5\u7b26\u5408\u8f83\u9ad8\u7684 IP \u9632\u62a4\u7b49\u7ea7\uff08\u5982 IP57\uff09\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u53ef\u4ee5\u9632\u5c18\u3001\u9632\u6f6e\uff0c\u751a\u81f3\u9632\u6c34\u3002\u5728\u5de5\u4e1a\u6216\u6237\u5916\u5b89\u9632\u5e94\u7528\u4e2d\uff0c\u9ea6\u514b\u98ce\u5fc5\u987b\u5728\u6076\u52a3\u7684\u6761\u4ef6\u4e0b\u751f\u5b58\uff0c\u8fd9\u79cd\u575a\u56fa\u8010\u7528\u7684\u7279\u6027\u975e\u5e38\u6709\u4ef7\u503c\u3002<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>\u5916\u5f62\u5c0f\u5de7\uff0c\u5b89\u88c5\u7075\u6d3b\uff1a<\/strong> MEMS \u9ea6\u514b\u98ce\u5916\u5f62\u7ea4\u8584\uff08\u9ad8\u5ea6\u901a\u5e38\u5c0f\u4e8e 1.5 \u6beb\u7c73\uff09\uff0c\u6613\u4e8e\u96c6\u6210\u5230\u667a\u80fd\u624b\u673a\u3001\u53ef\u7a7f\u6234\u8bbe\u5907\u3001\u5b89\u5168\u6444\u50cf\u5934\u548c\u6c7d\u8f66\u9876\u68da\u5185\u3002\u5de5\u7a0b\u5e08\u53ef\u4ee5\u5c06\u591a\u4e2a MEMS \u9ea6\u514b\u98ce\u9690\u85cf\u5728\u683c\u6805\u540e\u6216\u9762\u677f\u5185\uff0c\u800c\u65e0\u9700\u7b28\u91cd\u7684\u5916\u58f3\uff0c\u540c\u65f6\u8fd8\u80fd\u4fdd\u6301\u7a33\u5b9a\u7684\u5168\u5411\u62fe\u97f3\u3002\u7531\u4e8e MEMS \u5fae\u6ce2\u4ecb\u8d28\u662f\u5728\u6d01\u51c0\u5ba4\u5de5\u827a\u4e2d\u5236\u9020\u7684\uff0c\u56e0\u6b64\u8fd8\u5177\u6709\u51fa\u8272\u7684\u90e8\u4ef6\u95f4\u4e00\u81f4\u6027\u3002\u5bf9\u4e8e\u591a\u9ea6\u514b\u98ce\u7cfb\u7edf\u6765\u8bf4\uff0c\u8fd9\u53ef\u4ee5\u4ea7\u751f\u975e\u5e38\u5747\u5300\u7684\u6027\u80fd\uff1a\u9ea6\u514b\u98ce\u4e4b\u95f4\u7684\u76f8\u4f4d\u5dee\u63a7\u5236\u5728\u51e0\u5ea6\u4e4b\u5185\u3002\u7b80\u800c\u8a00\u4e4b\uff0cMEMS MIC \u4e3a\u8bbe\u8ba1\u4eba\u5458\u63d0\u4f9b\u4e86\u5bc6\u96c6\u3001\u5747\u5300\u7684\u4f20\u611f\u9635\u5217\uff0c\u800c\u4f20\u7edf\u4f20\u58f0\u5668\u5219\u65e0\u6cd5\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">\u5173\u952e\u7ee9\u6548\u6307\u6807<\/h2><p>\u6700\u65b0\u7684 MEMS MIC \u4ea7\u54c1\u5728\u58f0\u7eb9\u5370\u5236\u7cfb\u7edf\u7684\u6bcf\u4e00\u4e2a\u5173\u952e\u6307\u6807\u4e0a\u90fd\u8bbe\u7acb\u4e86\u65b0\u7684\u57fa\u51c6\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u4fe1\u566a\u6bd4\uff08SNR\uff09\uff1a<\/strong> \u5178\u578b\u7684\u9ad8\u7aef MEMS MIC \u7684\u4fe1\u566a\u6bd4\u503c\u7ea6\u4e3a <strong>65-75 dB(A)<\/strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><sub><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=With%20its%20low%20equivalent%20noise,performance%20of%20voice%20recognition%20algorithms\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a><a href=\"https:\/\/www.eetimes.eu\/the-growing-importance-of-innovative-mems-microphones\/#:~:text=,video%2Faudio%20conferencing%20and%20medical%20tracking\" target=\"_blank\" rel=\"noreferrer noopener\">eetimes.eu<\/a>.<\/sub><\/mark> \u8fd9\u662f\u8bed\u97f3\u7535\u5e73\u4e0e\u672c\u5e95\u566a\u58f0\u7684\u6bd4\u503c\uff0c\u8d8a\u9ad8\u8d8a\u597d\u3002\u5982\u6b64\u9ad8\u7684\u4fe1\u566a\u6bd4\u53ef\u786e\u4fdd\u5373\u4f7f\u5728\u8fdc\u573a\u62fe\u53d6\u6216\u8f7b\u5fae\u566a\u58f0\u7684\u60c5\u51b5\u4e0b\uff0c\u6355\u6349\u5230\u7684\u58f0\u7eb9\u4e5f\u80fd\u4fdd\u6301\u5176\u7ec6\u8282\u3002<\/li>\n\n<li><strong>\u654f\u611f\u6027\uff1a<\/strong> \u8fd9\u4e9b\u8bbe\u5907\u7684\u7075\u654f\u5ea6\u901a\u5e38\u5728 <strong>-26 \u81f3 -36 dBFS\uff08\u76f8\u5bf9\u4e8e 94 dB SPL\u30011 kHz \u97f3\u8c03\uff09<\/strong>.\u867d\u7136\u7edd\u5bf9\u7075\u654f\u5ea6\u56e0\u8bbe\u8ba1\u800c\u5f02\uff0c\u4f46\u5236\u9020\u5546\u4f1a\u5bf9\u6bcf\u4e2a\u4f20\u58f0\u5668\u8fdb\u884c\u6821\u51c6\uff0c\u4f7f\u5176\u7075\u654f\u5ea6\u516c\u5dee\u975e\u5e38\u5c0f\uff08\u901a\u5e38\u4e3a \u00b11 dB\uff09\u3002<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><sub><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=%E2%80%A2%20Sensitivity%20,frequency%20roll%20o%C8%84%20at%2028Hz\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>.<\/sub><\/mark> \u4e25\u683c\u7684\u5bb9\u5dee\u610f\u5473\u7740\u901a\u9053\u4e0e\u901a\u9053\u4e4b\u95f4\u7684\u589e\u76ca\u5dee\u5f02\u8f83\u5c0f\uff0c\u8fd9\u5728\u7ec4\u5408\u591a\u4e2a\u8bdd\u7b52\u8fdb\u884c\u9635\u5217\u5904\u7406\u65f6\u81f3\u5173\u91cd\u8981\u3002<\/li>\n\n<li><strong>\u52a8\u6001\u8303\u56f4<\/strong> \u7531\u4e8e\u91c7\u7528\u4e86\u53cc\u80cc\u677f\u8bbe\u8ba1\u548c\u9ad8\u5206\u8fa8\u7387 ADC\uff0cMEMS MIC \u7684\u52a8\u6001\u8303\u56f4\u53ef\u8fbe <strong>100-110 \u5206\u8d1d\u6216\u66f4\u9ad8<\/strong><sub><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Infineon%27s%20Dual%20Backplate%20MEMS%20technology,microphone%20%28array\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Features%20%E2%80%A2%20Dynamic%20range%20of,%C2%B1%202%C2%B0%20%401kHz\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>.<\/mark><\/sub> \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4ece\u5b89\u9759\u7684\u8033\u8bed\u58f0\u5230\u5608\u6742\u7684\u73af\u5883\u58f0\u90fd\u4e0d\u4f1a\u5931\u771f\u3002\u9ad8\u52a8\u6001\u8303\u56f4\u5728\u5b89\u9632\u573a\u666f\uff08\u5982\u5904\u7406\u591c\u603b\u4f1a\u95e8\u53e3\u7684\u8bed\u97f3\u547d\u4ee4\uff09\u4e2d\u975e\u5e38\u91cd\u8981\uff0c\u53ef\u9632\u6b62\u524a\u6ce2\u3002<\/li>\n\n<li><strong>\u8017\u7535\u91cf\uff1a<\/strong> \u6700\u5148\u8fdb\u7684 MEMS \u5fae\u673a\u7535\u96c6\u6210\u7535\u8def\u5de5\u4f5c\u5728 <strong>\u4e9a\u6beb\u5b89\u7535\u6d41<\/strong> \u5904\u4e8e\u6fc0\u6d3b\u72b6\u6001\uff0c\u800c <strong>\u5fae\u5b89\u7ea7<\/strong> \u5f85\u673a\u65f6\u7684\u7535\u6d41\u3002\u4f8b\u5982\uff0c\u5728 \"\u59cb\u7ec8\u76d1\u542c \"\u7684\u4f7f\u7528\u60c5\u51b5\u4e0b\uff0c\u5b83\u4eec\u5728 1.8V \u7535\u538b\u4e0b\u7684\u7535\u6d41\u53ef\u80fd\u53ea\u6709 200-500 \u00b5A\uff0c\u95f2\u7f6e\u65f6\u5219\u964d\u81f3 5 \u00b5A \u4ee5\u4e0b\u3002<sub><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=noise%20%E2%80%A2%20Power%20optimized%20modes,operating%20time%20of%20battery%20powered\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a>.<\/mark><\/sub> \u8fd9\u79cd\u8d85\u4f4e\u529f\u8017\u5141\u8bb8\u6301\u7eed\u7684\u8bed\u97f3\u76d1\u63a7\uff08\u7528\u4e8e\u5524\u9192\u8bcd\u6216\u9a8c\u8bc1\u63d0\u793a\uff09\uff0c\u5bf9\u7535\u6c60\u5bff\u547d\u7684\u5f71\u54cd\u6781\u5c0f\u3002\u8bb8\u591a\u4ea7\u54c1\u8fd8\u652f\u6301\u9ad8\u7ea7\u529f\u8017\u6a21\u5f0f\uff08\u7761\u7720\u3001\u65f6\u949f\u95e8\u63a7\uff09\uff0c\u4ee5\u5b9e\u73b0\u7cbe\u7ec6\u7684\u529f\u8017\/\u6027\u80fd\u6743\u8861\u3002<\/li>\n\n<li><strong>\u5c01\u88c5\u548c\u9635\u5217\u5339\u914d\uff1a<\/strong> \u5c01\u88c5\u5c3a\u5bf8\u901a\u5e38\u4e3a 3\u00d74 \u6beb\u7c73\u6216\u66f4\u5c0f\u3002\u6700\u91cd\u8981\u7684\u662f\uff0c\u6676\u5706\u7ea7\u5236\u9020\u53ef\u5b9e\u73b0\u4e25\u683c\u7684\u58f0\u5b66\u5339\u914d\u3002\u89c4\u683c\u901a\u5e38\u8981\u6c42\u7075\u654f\u5ea6\u5339\u914d\u5728 \u00b11 dB \u4ee5\u5185\uff0c\u76f8\u4f4d\u5339\u914d\u5728 \u00b12\u00b0 \u4ee5\u5185\u3002<sub><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=%E2%80%A2%20Sensitivity%20,frequency%20roll%20o%C8%84%20at%2028Hz\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">mouser.com<\/mark><\/a>. <\/sub>\u8fd9\u4e9b\u4e25\u683c\u7684\u89c4\u683c\u53ef\u5b9e\u73b0\u6709\u6548\u7684\u6ce2\u675f\u6210\u5f62\u548c\u58f0\u6e90\u5b9a\u4f4d\uff0c\u4ece\u800c\u6539\u5584\u5728\u5608\u6742\u6216\u6df7\u54cd\u73af\u5883\u4e2d\u7684\u58f0\u7eb9\u6355\u6349\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">\u5e94\u7528\u573a\u666f\u548c\u7cfb\u7edf\u96c6\u6210<\/h2><p>\u5de5\u7a0b\u5e08\u4eec\u6b63\u5728\u5c06\u8fd9\u4e9b\u521b\u65b0\u7684 MEMS MIC \u90e8\u7f72\u5230\u4e00\u7cfb\u5217\u652f\u6301\u8bed\u97f3\u8bc6\u522b\u7684\u4ea7\u54c1\u548c\u7cfb\u7edf\u4e2d\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u6d88\u8d39\u8bbe\u5907\u4e0e\u667a\u80fd\u5bb6\u5c45\uff1a<\/strong> \u667a\u80fd\u624b\u673a\u548c\u8bed\u97f3\u52a9\u624b\u8d8a\u6765\u8d8a\u591a\u5730\u4f7f\u7528\u8bed\u97f3\u751f\u7269\u8bc6\u522b\u6280\u672f\u8fdb\u884c\u7528\u6237\u767b\u5f55\u548c\u4e2a\u6027\u5316\u8bbe\u7f6e\u3002MEMS \u9ea6\u514b\u98ce\u53ef\u5b9e\u73b0\u624b\u673a\u548c\u5e73\u677f\u7535\u8111\u7684\u5b89\u5168 \"\u8bed\u97f3\u89e3\u9501\"\uff0c\u4ee5\u53ca\u58f0\u7eb9\u8bc6\u522b\u667a\u80fd\u9501\u548c\u4e2a\u4eba\u52a9\u7406\u3002\u4f8b\u5982\uff0c\u667a\u80fd\u626c\u58f0\u5668\u53ef\u4ee5\u8bc6\u522b\u623f\u4e3b\u7684\u58f0\u7eb9\uff0c\u4ece\u800c\u89e3\u9501\u97f3\u4e50\u63a7\u5236\u6216\u667a\u80fd\u5bb6\u5c45\u8bbe\u7f6e\u3002\u73b0\u4ee3\u5bb6\u5ead\u81ea\u52a8\u5316\u96c6\u7ebf\u5668\u96c6\u6210\u4e86\u591a\u4e2a MEMS MIC\uff0c\u7528\u4e8e\u8fdc\u573a\u8bed\u97f3\u6355\u6349\u548c\u53ef\u9760\u7684\u626c\u58f0\u5668\u8bc6\u522b\u3002\u5728\u53ef\u7a7f\u6234\u8bbe\u5907\u65b9\u9762\uff0c\u771f\u6b63\u7684\u65e0\u7ebf\u8033\u585e\u4f7f\u7528 MEMS \u9635\u5217\u5bf9\u7528\u6237\u7684\u5634\u5df4\u8fdb\u884c\u6ce2\u675f\u6210\u5f62\uff0c\u8fc7\u6ee4\u73af\u5883\u566a\u58f0\uff0c\u5373\u4f7f\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e5f\u80fd\u8fdb\u884c\u8bed\u97f3\u9a8c\u8bc1\u3002 <a href=\"https:\/\/usesmileid.com\/glossary\/voiceprint-recognition-speaker-recognition#:~:text=Voiceprint%20recognition%20finds%20application%20in,various%20scenarios\" target=\"_blank\" rel=\"noreferrer noopener\"><sub><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">usesmileid.com<\/mark><\/sub><\/a><\/li>\n\n<li><strong>\u5b89\u5168\u4e0e\u8bbf\u95ee\u63a7\u5236\uff1a<\/strong> \u58f0\u7eb9\u8bc6\u522b\u662f\u95e8\u7981\u63a7\u5236\u7684\u7b2c\u4e8c\u4e2a\u65b9\u4fbf\u56e0\u7d20\u3002\u9ad8\u8d28\u91cf\u7684 MEMS \u9ea6\u514b\u98ce\u53ef\u5728\u5b89\u5168\u8bbe\u65bd\u3001\u91d1\u878d\u670d\u52a1\u6216\u79fb\u52a8\u94f6\u884c\u7b49\u573a\u6240\u4f7f\u7528\u751f\u7269\u8bc6\u522b \"\u58f0\u7eb9\u94a5\u5319\"\u3002\u4f8b\u5982\uff0c\u57fa\u4e8e\u624b\u673a\u7684\u94f6\u884c\u5e94\u7528\u7a0b\u5e8f\u901a\u5e38\u4f7f\u7528\u58f0\u7eb9\u751f\u7269\u8bc6\u522b\u6280\u672f\u9a8c\u8bc1\u6765\u7535\u8005\u7684\u8eab\u4efd\u3002\u5b89\u88c5\u5728\u5efa\u7b51\u7269\u5165\u53e3\u7cfb\u7edf\u4e2d\u7684\u5148\u8fdb MEMS \u9ea6\u514b\u98ce\u9635\u5217\u53ef\u4ee5\u5728\u95e8\u53e3\u9a8c\u8bc1\u4e00\u4e2a\u4eba\u7684\u58f0\u7eb9\u3002\u5728\u6240\u6709\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u9ea6\u514b\u98ce\u7684\u4f4e\u566a\u58f0\u548c\u7a33\u5b9a\u6027\u90fd\u80fd\u786e\u4fdd\u58f0\u7eb9\u6a21\u677f\u4e0e\u5b9e\u65f6\u8bed\u97f3\u6355\u6349\u957f\u671f\u51c6\u786e\u5339\u914d\u3002<a href=\"https:\/\/usesmileid.com\/glossary\/voiceprint-recognition-speaker-recognition#:~:text=Voiceprint%20recognition%20finds%20application%20in,various%20scenarios\" target=\"_blank\" rel=\"noreferrer noopener\"><sub><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">usesmileid.com<\/mark><\/sub><\/a>.<\/li>\n\n<li><strong>\u6c7d\u8f66\u7cfb\u7edf\uff1a<\/strong> \u4e0b\u4e00\u4ee3\u6c7d\u8f66\u6b63\u5728\u96c6\u6210\u626c\u58f0\u5668\u8bc6\u522b\u529f\u80fd\uff0c\u4ee5\u5b9e\u73b0\u9a7e\u9a76\u5458\u4e2a\u6027\u5316\u548c\u5b89\u5168\u6027\u3002\u901a\u8fc7\u8bc6\u522b\u8c01\u5728\u8bf4\u8bdd\uff08\u9a7e\u9a76\u5458\u8fd8\u662f\u4e58\u5ba2\uff09\uff0c\u6c7d\u8f66\u53ef\u4ee5\u6839\u636e\u8be5\u4eba\u7684\u559c\u597d\u81ea\u52a8\u8c03\u6574\u5ea7\u6905\u3001\u540e\u89c6\u955c\u548c\u4fe1\u606f\u5a31\u4e50\u7cfb\u7edf\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u58f0\u7eb9\u53ef\u4ee5\u4f5c\u4e3a\u5b89\u5168\u5bc6\u94a5\uff1a <strong>\u53ea\u6709\u6388\u6743\u9a7e\u9a76\u5458\u7684\u58f0\u97f3\u624d\u80fd\u53d1\u51fa\u654f\u611f\u6307\u4ee4<\/strong> (\u4f8b\u5982\uff1a\u542f\u52a8\u53d1\u52a8\u673a\u3001\u89e3\u9501\u4e2a\u4eba\u6570\u636e\uff09<a href=\"https:\/\/www.validsoft.com\/blog\/voice-biometrics-and-the-connected-car\/#:~:text=With%20such%20power%20at%20our,voice%20command%20to%20the%20car\" target=\"_blank\" rel=\"noreferrer noopener\">validsoft.com<\/a>\u5728\u5608\u6742\u7684\u8f66\u53a2\u73af\u5883\u4e2d\uff0cMEMS MIC \u9635\u5217\uff08\u901a\u5e38\u5728\u8f66\u53a2\u5468\u56f4\u5b89\u88c5 4-6 \u4e2a\u9ea6\u514b\u98ce\uff09\u7684\u9ad8\u4fe1\u566a\u6bd4\u548c\u6ce2\u675f\u6210\u5f62\u80fd\u529b\u53ef\u4f7f\u7cfb\u7edf\u5c06\u9a7e\u9a76\u5458\u7684\u58f0\u97f3\u4e0e\u8def\u9762\u566a\u97f3\u9694\u79bb\u5f00\u6765\uff0c\u4ece\u800c\u5b9e\u73b0\u53ef\u9760\u7684\u9a8c\u8bc1\u3002<sub><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><a href=\"https:\/\/www.validsoft.com\/blog\/voice-biometrics-and-the-connected-car\/#:~:text=With%20such%20power%20at%20our,voice%20command%20to%20the%20car\" target=\"_blank\" rel=\"noreferrer noopener\">validsoft.com<\/a><a href=\"https:\/\/www.digikey.com\/en\/articles\/an-introduction-to-beamforming-with-mems-microphones#:~:text=A%20beamforming%20array%20containing%20multiple,microphone%20array\" target=\"_blank\" rel=\"noreferrer noopener\">digikey.com<\/a>.<\/mark><\/sub><\/li>\n\n<li><strong>\u5de5\u4e1a\u4e0e\u7269\u8054\u7f51\uff1a<\/strong> \u5de5\u5382\u3001\u533b\u9662\u548c\u91ce\u5916\u4f5c\u4e1a\u4f7f\u7528\u58f0\u7eb9\u6280\u672f\u5bf9\u5de5\u4eba\u8fdb\u884c\u514d\u63d0\u8ba4\u8bc1\u3002\u4f8b\u5982\uff0c\u7ef4\u4fee\u5de5\u4eba\u53ef\u4ee5\u901a\u8fc7\u8bf4\u8bdd\u83b7\u5f97\u8bbe\u5907\u8bbf\u95ee\u6743\u9650\u3002\u575a\u56fa\u8010\u7528\u7684\u624b\u673a\u6216\u8033\u673a\u4e2d\u7684 MEMS \u9ea6\u514b\u98ce\u53ef\u62b5\u5fa1\u7070\u5c18\u548c\u6e7f\u6c14\uff08IP \u9632\u62a4\u7b49\u7ea7\uff09\uff0c\u540c\u65f6\u91c7\u96c6\u58f0\u7eb9\u751f\u7269\u8bc6\u522b\u3002MEMS \u9ea6\u514b\u98ce\u4f20\u611f\u5668\u8282\u70b9\u8fd8\u53ef\u652f\u6301\u58f0\u63a7\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u5728\u6267\u884c\u64cd\u4f5c\u524d\u5bf9\u7528\u6237\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">\u603b\u7ed3\uff1a\u5f15\u9886\u58f0\u7eb9\u751f\u7269\u8bc6\u522b\u6280\u672f\u7684 MEMS MIC \u521b\u65b0<\/h2><p>\u968f\u7740\u6bcf\u4e00\u4ee3\u4eba\u7684\u6210\u957f\uff0c\u6211\u4eec <a href=\"https:\/\/sistc.com\/zh\/product\/digital-mems-microphone\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">MEMS MIC<\/mark><\/a> \u6280\u672f\u63a8\u52a8\u4e86\u8bed\u97f3\u8bc6\u522b\u97f3\u9891\u4f20\u611f\u5668\u6027\u80fd\u7684\u53d1\u5c55\u3002\u901a\u8fc7\u5c06 <strong>\u8d85\u4f4e\u566a\u97f3<\/strong>, <strong>\u9ad8\u7075\u654f\u5ea6<\/strong>\u4ee5\u53ca <strong>\u96c6\u6210\u6570\u5b57\u5904\u7406<\/strong> \u5728\u5fae\u5c0f\u3001\u575a\u56fa\u7684\u5c01\u88c5\u4e2d\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u6bd4\u4ee5\u5f80\u4efb\u4f55\u65f6\u5019\u90fd\u66f4\u52a0\u51c6\u786e\u3001\u53ef\u9760\u548c\u7701\u7535\u7684\u58f0\u7eb9\u8bc6\u522b\u7cfb\u7edf\u3002\u8fd9\u4e9b\u521b\u65b0\u4f7f\u6211\u4eec\u7ad9\u5728\u4e86\u58f0\u7eb9\u751f\u7269\u8bc6\u522b\u786c\u4ef6\u7684\u6700\u524d\u6cbf\uff1a\u6784\u5efa\u5b89\u5168\u95e8\u7981\u7cfb\u7edf\u3001\u667a\u80fd\u5bb6\u5c45\u8bbe\u5907\u548c\u8054\u7f51\u6c7d\u8f66\u7684\u5de5\u7a0b\u5e08\u4eec\u6b63\u5728\u9009\u62e9\u6211\u4eec\u7684 MEMS MIC\uff0c\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u6c34\u5e73\u7684\u58f0\u7eb9\u8bc6\u522b\u51c6\u786e\u6027\u3002<\/p><p>\u968f\u7740\u8bed\u97f3\u9a8c\u8bc1\u5728\u6d88\u8d39\u7c7b\u548c\u4f01\u4e1a\u4ea7\u54c1\u4e2d\u7684\u4e0d\u65ad\u666e\u53ca\uff0c\u6355\u83b7\u58f0\u97f3\u7684\u8d28\u91cf\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002\u6211\u4eec\u5728 MEMS \u9ea6\u514b\u98ce\u8bbe\u8ba1\u65b9\u9762\u7684\u4e0d\u65ad\u8fdb\u6b65--\u4ece\u65b0\u9896\u7684\u632f\u819c\u7ed3\u6784\u5230\u5148\u8fdb\u7684 ASIC \u67b6\u6784--\u786e\u4fdd\u4e86\u58f0\u7eb9\u7b97\u6cd5\u80fd\u591f\u83b7\u5f97\u6700\u4f73\u7684\u97f3\u9891\u8f93\u5165\u3002\u6211\u4eec\u9f13\u52b1\u7cfb\u7edf\u8bbe\u8ba1\u4eba\u5458\u63a2\u7d22\u6211\u4eec\u7684\u6280\u672f\u8d44\u6e90\u548c\u4ea7\u54c1\u7cfb\u5217\uff0c\u4e86\u89e3\u5982\u4f55\u5c06\u8fd9\u4e9b MEMS MIC \u7a81\u7834\u6027\u6280\u672f\u96c6\u6210\u5230\u4e0b\u4e00\u4ee3\u8bed\u97f3\u7cfb\u7edf\u4e2d\u3002\u6709\u5173\u6027\u80fd\u548c\u5e94\u7528\u793a\u4f8b\u7684\u66f4\u591a\u8be6\u60c5\uff0c\u8bf7\u67e5\u9605\u6211\u4eec\u7684\u767d\u76ae\u4e66\u548c\u6570\u636e\u8868\uff0c\u6216\u8054\u7cfb\u6211\u4eec\u7684\u5de5\u7a0b\u56e2\u961f\u3002<\/p><p><strong>\u8d44\u6599\u6765\u6e90<\/strong> \u884c\u4e1a\u51fa\u7248\u7269\u8bb0\u8f7d\u4e86\u6700\u5148\u8fdb\u7684 MEMS \u9ea6\u514b\u98ce\u8bbe\u8ba1\u53ca\u5176\u5bf9\u8bed\u97f3\u63a5\u53e3\u548c\u751f\u7269\u8bc6\u522b\u6280\u672f\u7684\u5f71\u54cd<sub><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\"><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=With%20its%20low%20equivalent%20noise,performance%20of%20voice%20recognition%20algorithms\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a><a href=\"https:\/\/www.analog.com\/media\/en\/technical-documentation\/technical-articles\/analog-and-digital-mems-microphone-design-considerations-ms-2472.pdf#:~:text=Digital%20microphones%20move%20the%20analog,By%20making%20these\" target=\"_blank\" rel=\"noreferrer noopener\">analog.com<\/a><a href=\"https:\/\/usesmileid.com\/glossary\/voiceprint-recognition-speaker-recognition#:~:text=Voiceprint%20recognition%2C%20also%20known%20as,These%20characteristics%20can%20include\" target=\"_blank\" rel=\"noreferrer noopener\">usesmileid.com<\/a><a href=\"https:\/\/www.digikey.com\/en\/articles\/an-introduction-to-beamforming-with-mems-microphones#:~:text=Microphones%20and%20Directionality\" target=\"_blank\" rel=\"noreferrer noopener\">digikey.com<\/a>.<\/mark><\/sub> \u72ec\u7acb\u8bc4\u5ba1\u5f3a\u8c03\u4e86 MEMS MIC \u7684\u89c4\u683c\uff08\u5982\u4fe1\u566a\u6bd4\u9ad8\u8fbe 75 dB\uff0c\u52a8\u6001\u8303\u56f4 ~105 dB\uff09\u548c\u9635\u5217\u529f\u80fd<sub><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Infineon%27s%20Dual%20Backplate%20MEMS%20technology,microphone%20%28array\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a><a href=\"https:\/\/www.mouser.com\/datasheet\/2\/196\/Infineon-IM69D130-DS-v01_00-EN-1274301.pdf?srsltid=AfmBOopbvDfHiCG4g6nEFOaA01WmvP0zaeyN8uvjgTqrp3maWjzOgF3X#:~:text=Features%20%E2%80%A2%20Dynamic%20range%20of,%C2%B1%202%C2%B0%20%401kHz\" target=\"_blank\" rel=\"noreferrer noopener\">mouser.com<\/a><a href=\"https:\/\/www.digikey.com\/en\/articles\/an-introduction-to-beamforming-with-mems-microphones#:~:text=A%20beamforming%20array%20containing%20multiple,microphone%20array\" target=\"_blank\" rel=\"noreferrer noopener\">digikey.com<\/a>.<\/sub> \u8fd9\u4e9b\u53c2\u8003\u6587\u732e\u5f3a\u8c03\u4e86\u4e3a\u4ec0\u4e48\u9ad8\u6027\u80fd MEMS \u9ea6\u514b\u98ce\u5bf9\u5f53\u4eca\u667a\u80fd\u8bbe\u5907\u548c\u8f66\u8f86\u7684\u51c6\u786e\u58f0\u7eb9\u8bc6\u522b\u81f3\u5173\u91cd\u8981\u3002<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u56fe\u73b0\u4ee3\u8bed\u97f3\u8bbe\u5907\uff08\u8033\u585e\u3001\u52a9\u624b\u3001\u667a\u80fd\u5bb6\u5c45\u7cfb\u7edf\uff09\u5229\u7528\u5148\u8fdb\u7684 MEMS \u9ea6\u514b\u98ce\u9635\u5217\u5b9e\u73b0\u865a\u62df\u52a9\u624b\u3001\u964d\u566a\u548c\u4e8b\u4ef6\u68c0\u6d4b\u7b49\u529f\u80fd\u3002MEMS \u9ea6\u514b\u98ce\u5df2\u6210\u4e3a[...]<\/p>","protected":false},"author":2,"featured_media":15120,"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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