{"id":42607,"date":"2023-10-01T14:05:02","date_gmt":"2023-10-01T06:05:02","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=42607"},"modified":"2023-10-01T14:05:02","modified_gmt":"2023-10-01T06:05:02","slug":"dhzyhsgs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/42607.html","title":{"rendered":"db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f"},"content":{"rendered":"

  db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u662f\u7528\u6765\u8ba1\u7b97\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u7684\u4e00\u79cd\u6570\u5b66\u65b9\u6cd5\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u548c\u63a7\u5236\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ece\u800c\u66f4\u597d\u5730\u63a7\u5236\u6211\u4eec\u7684\u4fe1\u53f7\u7cfb\u7edf\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecddb\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\uff0c\u4ee5\u53ca\u5b83\u5982\u4f55\u5e2e\u52a9\u6211\u4eec\u63a7\u5236\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u3002<\/p>\n

\u4ec0\u4e48\u662fdb\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\uff1f<\/h2>\n

  db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u662f\u4e00\u79cd\u6570\u5b66\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8ba1\u7b97\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u5b83\u7684\u5168\u79f0\u662f\u201cDecibel-Gain Conversion Formula\u201d\uff0c\u4e5f\u5c31\u662f\u201c\u5206\u8d1d\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u201d\u3002\u5b83\u7684\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

  Gain (dB) = 10 x log (Gain)<\/p>\n

  \u5176\u4e2d\uff0cGain (dB)\u8868\u793a\u589e\u76ca\u7684\u5206\u8d1d\u503c\uff0c\u800cGain\u8868\u793a\u589e\u76ca\u7684\u5b9e\u9645\u503c\u3002<\/p>\n

\u5206\u8d1d\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb<\/h2>\n

  \u5206\u8d1d\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u63a7\u5236\u6211\u4eec\u7684\u4fe1\u53f7\u7cfb\u7edf\u3002\u5206\u8d1d\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\uff1a\u5206\u8d1d\u662f\u4e00\u79cd\u8861\u91cf\u4fe1\u53f7\u529f\u7387\u7684\u5355\u4f4d\uff0c\u800c\u589e\u76ca\u662f\u4e00\u79cd\u8861\u91cf\u4fe1\u53f7\u7684\u589e\u5f3a\u7a0b\u5ea6\u3002\u901a\u8fc7db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba1\u7b97\u51fa\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ece\u800c\u66f4\u597d\u5730\u63a7\u5236\u6211\u4eec\u7684\u4fe1\u53f7\u7cfb\u7edf\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\uff1f<\/h2>\n

  \u4f7f\u7528db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u8f93\u5165\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u7684\u5b9e\u9645\u503c\uff0c\u7136\u540e\u4f7f\u7528\u516c\u5f0f\u8ba1\u7b97\u51fa\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u5373\u53ef\u3002\u5177\u4f53\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

  1.\u8f93\u5165\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u7684\u5b9e\u9645\u503c<\/h3>\n

  \u9996\u5148\uff0c\u9700\u8981\u8f93\u5165\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u7684\u5b9e\u9645\u503c\u3002\u8fd9\u4e9b\u503c\u53ef\u4ee5\u4ece\u5b9e\u9a8c\u4e2d\u6d4b\u91cf\u5f97\u5230\uff0c\u4e5f\u53ef\u4ee5\u4ece\u7406\u8bba\u8ba1\u7b97\u5f97\u5230\u3002<\/p>\n

  2.\u4f7f\u7528db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u8ba1\u7b97\u51fa\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb<\/h3>\n

  \u7136\u540e\uff0c\u4f7f\u7528db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u8ba1\u7b97\u51fa\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u8fd9\u4e2a\u516c\u5f0f\u7684\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n

  Gain (dB) = 10 x log (Gain)<\/p>\n

  3.\u6839\u636e\u8ba1\u7b97\u7ed3\u679c\u63a7\u5236\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca<\/h3>\n

  \u6700\u540e\uff0c\u6839\u636e\u8ba1\u7b97\u7ed3\u679c\u63a7\u5236\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8ba1\u7b97\u7ed3\u679c\u663e\u793a\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u4e0d\u6b63\u5e38\uff0c\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u4fe1\u53f7\u529f\u7387\u6216\u589e\u76ca\u6765\u8c03\u6574\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ece\u800c\u6539\u5584\u4fe1\u53f7\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u662f\u4e00\u79cd\u6570\u5b66\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8ba1\u7b97\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ece\u800c\u66f4\u597d\u5730\u63a7\u5236\u6211\u4eec\u7684\u4fe1\u53f7\u7cfb\u7edf\u3002<\/strong>\u4f7f\u7528db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u8f93\u5165\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u7684\u5b9e\u9645\u503c\uff0c\u7136\u540e\u4f7f\u7528\u516c\u5f0f\u8ba1\u7b97\u51fa\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\u5373\u53ef\u3002\u6700\u540e\uff0c\u6839\u636e\u8ba1\u7b97\u7ed3\u679c\u63a7\u5236\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\uff0c\u4ece\u800c\u6539\u5584\u4fe1\u53f7\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

db\u548c\u589e\u76ca\u6362\u7b97\u516c\u5f0f\u662f\u7528\u6765\u8ba1\u7b97\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u7684\u4e00\u79cd\u6570\u5b66\u65b9\u6cd5\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u548c\u63a7\u5236\u4fe1\u53f7\u529f\u7387\u548c\u589e\u76ca\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ece\u800c\u66f4\u597d\u5730\u63a7\u5236\u6211\u4eec\u7684\u4fe1\u53f7\u7cfb\u7edf\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecddb\u548c\u589e\u76ca\u6362\u7b97<\/p>\n","protected":false},"author":1,"featured_media":4132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","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":"","footnotes":""},"categories":[36],"tags":[305],"class_list":["post-42607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-dzjs"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/42607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=42607"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/42607\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/4132"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=42607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=42607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=42607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}