{"id":154,"date":"2021-12-08T00:19:00","date_gmt":"2023-01-06T06:27:16","guid":{"rendered":"https:\/\/www.aibangtws.com\/?p=154"},"modified":"2023-01-06T14:28:34","modified_gmt":"2023-01-06T06:28:34","slug":"55b149e631","status":"publish","type":"post","link":"https:\/\/www.aibangtws.com\/a\/154","title":{"rendered":"TWS\u8033\u673a\u901a\u8bdd\u964d\u566a\u4e2d\u7684\u6280\u672f"},"content":{"rendered":"
\n
\n

\u5173\u952e\u5b57\uff1a<\/span><\/strong>TWS\u8033\u673a<\/strong>\u00a0\u00a0<\/span><\/strong>\u6570\u5b57\u4fe1\u53f7<\/strong>\u00a0\u00a0<\/span><\/strong>ADM<\/strong><\/p>\n

\n

\u968f\u7740TWS\uff08True wireless stereo\uff09\u8033\u673a\u5e02\u573a\u7684\u4e0d\u65ad\u6210\u957f\u3002\u7528\u6237\u5bf9\u4e8e\u4ea7\u54c1\u4f53\u9a8c\u7684\u9700\u6c42\u4e5f\u4ece\u7b80\u5355\u7684\u5feb\u901f\u94fe\u63a5\uff0c\u5347\u7ea7\u5230\u66f4\u9ad8\u7684\u6807\u51c6\uff0c\u8b6c\u5982\uff0c\u622a\u81f3\u4eca\u5e74\u5e02\u9762\u4e0a\u6d8c\u73b0\u4e86\u5927\u91cf\u7684\u4ee5\u6e05\u6670\u901a\u8bdd\u4e3a\u5356\u70b9\u7684TWS\u8033\u673a\u3002<\/p>\n

\n

\u4e3a\u4e86\u80fd\u591f\u5728\u975e\u5e38\u5608\u6742\u7684\u73af\u5883\u4e2d\u8fdb\u884c\u6e05\u6670\u7684\u8bed\u97f3\u901a\u4fe1\uff0c\u662f\u5426\u80fd\u4ea7\u751f\u65b9\u6848\uff0c\u5c06\u6765\u81ea\u5185\u8033\u548c\u5916\u90e8\u9ea6\u514b\u98ce\u7684\u4fe1\u53f7\u7ed3\u5408\u8d77\u6765\uff0c\u5b9e\u73b0\u4e00\u79cd\u667a\u80fd\u7684\u3001\u9002\u5e94\u73af\u5883\u7684\u5b50\u5e26\u6df7\u9891\u5668\u6280\u672f\u3002\u4e8b\u5b9e\u4e0a\uff0c\u4e00\u4e9b\u56fd\u5185\u5916\u7684\u7b97\u6cd5\u516c\u53f8\u5747\u81f4\u529b\u4e8e\u6b64\uff0c\u5e76\u4e14\u53d6\u5f97\u4e00\u5b9a\u7684\u6210\u6548\u3002<\/p>\n

\n

\u5f53\u7136\uff0c\u5f88\u591a\u65b9\u6848\u516c\u53f8\u73b0\u5728\u6709\u4e13\u95e8\u5f3a\u8c03\u8b6c\u5982edge AI\uff08\u8fd9\u7b97\u662f\u4e00\u4e2a\uff09\u7684\u901a\u8bdd\u964d\u566a\u65b9\u6848\uff0c\u4f46\u5b9e\u9645\u4e0a\u66f4\u591a\u662f\u9488\u5bf9\u73b0\u6709\u901a\u8bdd\u964d\u566a\u65b9\u6848\u7684\u4f18\u5316\uff0c\u6240\u4ee5\u8fd9\u90e8\u5206\u6458\u9664\uff0c\u6211\u4eec\u5148\u770b\u4e00\u4e9b\u57fa\u7840\u90e8\u5206\u7684\u4ecb\u7ecd\uff0c\u4e5f\u5c31\u662f\u901a\u8bdd\u964d\u566a\u5177\u4f53\u80fd\u505a\u4ec0\u4e48\u3002<\/p>\n

\n

\u603b\u4f53\u6765\u770b\uff0c\u901a\u8bdd\u964d\u566a\u4f9d\u8d56Uplink\uff08\u4e0a\u884c\uff09\u4e0eDownlink\uff08\u4e0b\u884c\uff09\u540c\u6b65\u8fdb\u884c\u3002\u5927\u81f4\u4e3aMicrophone Array\/AEC\/NS\/EQ\/AGC\/DRC\uff0c\u5148\u540e\u7684\u903b\u8f91\u5173\u7cfb\u5982\u4e0b\uff1a<\/p>\n

\n

\"TWS\u8033\u673a\u901a\u8bdd\u964d\u566a\u4e2d\u7684\u6280\u672f\"<\/p>\n

\n

ADM\uff08Adaptive Directional Microphone Array\uff09<\/strong>\u81ea\u9002\u5e94\u5168\u6307\u5411\u578b\u9ea6\u514b\u98ce\u9635\u5217\u8fd9\u662f\u662f\u4e00\u79cd\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u6280\u672f\uff0c\u4ec5\u4f7f\u7528\u4e24\u4e2a\u5168\u5411\u9ea6\u514b\u98ce\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u65b9\u5411\u6216\u566a\u58f0\u6d88\u9664\u9ea6\u514b\u98ce\u3002ADM\u81ea\u52a8\u6539\u53d8\u5176\u65b9\u5411\u7279\u6027\uff0c\u5728\u5145\u5206\u4fdd\u6301\u4fe1\u53f7\u8d28\u91cf\u7684\u540c\u65f6\uff0c\u5728\u5404\u79cd\u73af\u5883\u4e0b\u63d0\u4f9b\u6700\u4f73\u7684\u566a\u58f0\u8870\u51cf\u3002\u8be5\u81ea\u9002\u5e94\u8fc7\u7a0b\u901f\u5ea6\u5feb\uff0c\u9891\u7387\u9009\u62e9\u6027\u5f3a\uff0c\u53ef\u4ee5\u540c\u65f6\u6d88\u9664\u591a\u4e2a\u5e72\u6270\u3002<\/p>\n

\n

ADM\u9664\u4e86\u5177\u6709\u826f\u597d\u7684\u5b9a\u5411\u7279\u6027\u5916\uff0c\u5176\u53d7\u98ce\u566a\u58f0\u7684\u5f71\u54cd\u6bd4\u4f20\u7edf\u7684\u58f0\u5b66\u5b9a\u5411\u9ea6\u514b\u98ce\u8981ADM\u6280\u672f\u5141\u8bb8\u4e24\u79cd\u7c7b\u578b\u7684\u9ea6\u514b\u98ce\u914d\u7f6e:\u201c\u7aef\u5c04\u201d\u548c\u201c\u5782\u5c04\u201d\u3002<\/p>\n

\n

\u5728\u7aef\u5c04\u914d\u7f6e\u4e2d\uff0c\u4fe1\u53f7\u6e90(\u7528\u6237\u7684\u5634)\u4f4d\u4e8e\u8f74\u7ebf\u4e0a(\u8fde\u63a5\u4e24\u4e2a\u9ea6\u514b\u98ce\u7684\u7ebf)\u3002\u5728\u5782\u5c04\u914d\u7f6e\u4e2d\uff0c\u5b83\u7684\u76ee\u6807\u662f\u6a2a\u8f74\u7684\u76f4\u7ebf\u3002<\/p>\n

\n

\u5728\u7aef\u5c04\u914d\u7f6e\u4e2d\uff0cADM\u6709\u4e24\u79cd\u64cd\u4f5c\u65b9\u5f0f;\u201cfar-talk\u201d\uff08\u8fdc\u4f20\uff09\u548c\u201cclose-talk\u201d\uff08\u8fd1\u4f20\uff09\u3002\u5728\u8fdc\u4f20\u6a21\u5f0f\u4e0b\uff0cADM\u4f5c\u4e3a\u4e00\u4e2a\u6700\u4f18\u7684\u65b9\u5411\u9ea6\u514b\u98ce\uff0c\u8870\u51cf\u6765\u81ea\u540e\u9762\u548c\u4fa7\u9762\u7684\u4fe1\u53f7\uff0c\u540c\u65f6\u4fdd\u7559\u524d\u9762\u7684\u4fe1\u53f7\u3002\u5728close-talk mode\uff0cADM\u4f5c\u4e3a\u6700\u597d\u7684\u964d\u566a\u9ea6\u514b\u98ce\uff0c\u6709\u6548\u5730\u6d88\u9664\u4e86\u8fdc\u5904\u7684\u58f0\u97f3\u3002\u76f8\u5bf9\u81ea\u7531\u7684\u58f0\u5b66\u8bbe\u8ba1\u4f7f\u5f97ADM\u6210\u4e3a\u624b\u673a\u7684\u7406\u60f3\u9009\u62e9\uff0c\u5b83\u53ef\u4ee5\u5728\u8fdc\u7aef\u626c\u58f0\u5668\u548c\u8fd1\u7aef\u626c\u58f0\u5668\u4e4b\u95f4\u8fdb\u884c\u201c\u8f6f\u201d\u5207\u6362\u3002\u4f46\u662f\u6b64\u7c7b\u8bbe\u8ba1\u5728\u8033\u673a\u4e0a\u65f6\uff0c\u7279\u522b\u662fTWS\u8033\u673a\u4e0a\uff0c\u6bd4\u8f83\u53d7\u5230\u4f7f\u7528\u8005\u4f69\u6234\u6b63\u786e\u4e0e\u5426\u7684\u9650\u5236\uff0c\u7c7b\u4f3c\u4e0eairpods\uff0c\u7b14\u8005\u89c2\u5bdf\u4e86\u5f88\u591a\u4eba\u5728\u5730\u94c1\u91cc\u6709\u201c\u5343\u5947\u767e\u602a\u201d\u7684\u6234\u6cd5\uff0c\u6709\u4e9b\u662f\u7528\u6237\u8033\u6735\u5f62\u72b6\uff0c\u6709\u4e9b\u662f\u4f69\u6234\u4e60\u60ef\uff0c\u5bfc\u81f4\u7b97\u6cd5\u5e76\u4e0d\u4e00\u5b9a\u80fd\u5728\u7406\u60f3\u7684\u60c5\u51b5\u4e0b\u5de5\u4f5c\u3002<\/p>\n

\n

Acoustic Echo Canceller (AEC)<\/strong><\/p>\n

\u5f53\u53cc\u5de5(\u540c\u65f6\u53cc\u5411)\u901a\u4fe1\u4e2d\u7684\u4e00\u90e8\u5206\u4fe1\u53f7\u8fd4\u56de\u5230\u6e90\u4fe1\u53f7\u65f6\uff0c\u5c31\u79f0\u4e3a\u201c\u56de\u58f0\u201d\u3002\u5728\u957f\u8ddd\u79bb\u6a21\u62df\u548c\u51e0\u4e4e\u6240\u6709\u7684\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u5373\u4f7f\u662f\u5f88\u5c0f\u7684\u56de\u6ce2\u4fe1\u53f7\u4e5f\u4f1a\u56e0\u4e3a\u4e25\u91cd\u7684\u5f80\u8fd4\u5ef6\u8fdf\u800c\u9020\u6210\u5e72\u6270\u3002<\/p>\n

\n

\u5728\u8bed\u97f3\u901a\u4fe1\u7ec8\u7aef\u4e2d\uff0c\u7531\u4e8e\u626c\u58f0\u5668\u548c\u9ea6\u514b\u98ce\u4e4b\u95f4\u7684\u58f0\u5b66\u8026\u5408\u800c\u4ea7\u751f\u58f0\u5b66\u56de\u58f0\u3002\u7531\u4e8e\u5728\u901a\u4fe1\u4fe1\u9053\u4e2d\u5e94\u7528\u7684\u975e\u7ebf\u6027\u5904\u7406\uff0c\u5982\u6709\u635f\u58f0\u7801\u5668\u548c\u8f6c\u7801\uff0c\u58f0\u56de\u6ce2\u5fc5\u987b\u5728\u8bbe\u5907\u5185\u90e8\u8fdb\u884c\u5c40\u90e8\u5904\u7406(\u53d6\u6d88)\u3002<\/p>\n

\n

Noise Suppressor (NS)<\/strong><\/p>\n

\u566a\u58f0\u6291\u5236\u6280\u672f\u964d\u4f4e\u4e86\u5355\u901a\u9053\u8bed\u97f3\u4fe1\u53f7\u4e2d\u7684\u5e73\u7a33\u548c\u6682\u6001\u566a\u58f0\uff0c\u63d0\u9ad8\u4e86\u4fe1\u566a\u6bd4\uff0c\u63d0\u9ad8\u4e86\u8bed\u97f3\u6e05\u6670\u5ea6\uff0c\u964d\u4f4e\u4e86\u542c\u529b\u75b2\u52b3\u3002<\/p>\n

\n

\u5f53\u7136\u6b64\u90e8\u5206\u5c31\u6709\u5f88\u591a\u5177\u4f53\u7684\u65b9\u6cd5\u4e86\uff0c\u8b6c\u5982BF \uff08Beamforming\uff09\uff0c\u6216\u8005PF\uff08Post filter\u540e\u7f6e\u6ee4\u6ce2\u5668\uff09\u7b49\u8c03\u8282\u65b9\u6cd5\u3002\u603b\u4f53\u6765\u8bf4AEC\uff0cNS \uff0cBF\uff0cPF\u7b97\u662f\u901a\u8bdd\u964d\u566a\u7684\u6838\u5fc3\u90e8\u5206\uff0c\u8bda\u7136\u6bcf\u5bb6\u7b97\u6cd5\u65b9\u6848\u5546\u7684\u4f18\u52a3\u90fd\u4e0d\u540c\u3002<\/p>\n

\n

Automatic Gain Control (AGC) and Dynamic Range Compressor (DRC)<\/strong><\/p>\n

\u5728\u5178\u578b\u7684\u8bed\u97f3\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u7531\u4e8e\u7528\u6237\u548c\u9ea6\u514b\u98ce\u4e4b\u95f4\u7684\u8ddd\u79bb\u4e0d\u540c\uff0c\u4ee5\u53ca\u7531\u4e8e\u901a\u4fe1\u4fe1\u9053\u7684\u7279\u6027\uff0c\u8bed\u97f3\u4fe1\u53f7\u7684\u7535\u5e73\u53ef\u80fd\u5728\u5f88\u5927\u7684\u8303\u56f4\u5185\u53d8\u5316\u3002<\/p>\n

\n

\u52a8\u6001\u8303\u56f4\u538b\u7f29(DRC)\u662f\u5747\u8861\u4fe1\u53f7\u7535\u5e73\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u3002\u538b\u7f29\u901a\u8fc7\u964d\u4f4e(\u538b\u7f29)\u5f3a\u8bed\u97f3\u6bb5\u800c\u5145\u5206\u4fdd\u7559\u5f31\u8bed\u97f3\u6bb5\u6765\u51cf\u5c0f\u4fe1\u53f7\u7684\u52a8\u6001\u8303\u56f4\u3002\u56e0\u6b64\uff0c\u6574\u4e2a\u4fe1\u53f7\u53ef\u4ee5\u989d\u5916\u653e\u5927\uff0c\u8fd9\u6837\u5f31\u4fe1\u53f7\u53ef\u4ee5\u66f4\u597d\u5730\u542c\u5230\u3002<\/p>\n

\n

AGC\u6280\u672f\u5728\u8bed\u97f3\u4fe1\u53f7\u8f83\u5f31\u7684\u60c5\u51b5\u4e0b\u901a\u8fc7\u6570\u5b57\u65b9\u5f0f\u589e\u52a0\u4fe1\u53f7\u589e\u76ca(\u653e\u5927)\uff0c\u800c\u5728\u8bed\u97f3\u4fe1\u53f7\u8f83\u5f3a\u7684\u60c5\u51b5\u4e0b\u5bf9\u5176\u8fdb\u884c\u538b\u7f29\u3002\u5728\u5608\u6742\u7684\u5730\u65b9\uff0c\u4eba\u4eec\u503e\u5411\u4e8e\u5927\u58f0\u8bf4\u8bdd\uff0c\u8fd9\u81ea\u52a8\u8bbe\u7f6e\u9ea6\u514b\u98ce\u901a\u9053\u589e\u76ca\u5230\u4e00\u4e2a\u5c0f\u7684\u503c\uff0c\u4ece\u800c\u51cf\u5c11\u5468\u56f4\u7684\u566a\u97f3\uff0c\u540c\u65f6\u4fdd\u6301\u5728\u6700\u4f73\u6c34\u5e73\u7684\u5174\u8da3\u7684\u58f0\u97f3\u3002\u53e6\u5916\uff0c\u5728\u4e00\u4e2a\u5b89\u9759\u7684\u73af\u5883\u4e2d\uff0c\u4eba\u4eec\u8bf4\u8bdd\u76f8\u5bf9\u5c0f\uff0c\u8fd9\u6837\u4ed6\u4eec\u7684\u58f0\u97f3\u5c31\u4f1a\u88ab\u7b97\u6cd5\u653e\u5927\uff0c\u800c\u4e0d\u4f1a\u6709\u592a\u591a\u7684\u566a\u97f3\u3002<\/p>\n

https:\/\/mp.weixin.qq.com\/s\/1joI6zq9Vh5qXMYfw3qjNQ<\/p>\n

 <\/p>\n<\/section>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"

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