{"id":12054,"date":"2025-08-04T09:00:23","date_gmt":"2025-08-04T00:00:23","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/08\/04\/12054\/"},"modified":"2025-08-04T09:00:23","modified_gmt":"2025-08-04T00:00:23","slug":"a-%ea%b4%91%ed%86%b5%ec%8b%a0-6-decibel%ec%9d%98-%ec%a0%95%ec%9d%98%ec%99%80-%ea%b3%84%ec%82%b0%eb%b2%95","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/08\/04\/12054\/","title":{"rendered":"A+ \uad11\ud1b5\uc2e0 &#8211; 6. DECIBEL\uc758 \uc815\uc758\uc640 \uacc4\uc0b0\ubc95"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image4.happycampus.com\/Production\/thumb212\/2024\/02\/05\/data29435469-0001.jpg\"><img decoding=\"async\" src=\"https:\/\/image4.happycampus.com\/Production\/thumb212\/2024\/02\/05\/data29435469-0002.jpg\"><\/p>\n<p><strong>\ubaa9\ucc28<\/strong><\/p>\n<p>1. \ub370\uc2dc\ubca8\uc774\ub780?<br \/>\n2. \uacc4\uc0b0\ubc95<\/p>\n<p><strong>\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n<p>\uf071 \ub370\uc2dc\ubca8\uc774\ub780?<\/p>\n<p>dB (decibel)\uc740 \uc804\ud654\uc758 \uc544\ubc84\uc9c0\ub77c \ubd88\ub9ac\ub294 \uc54c\ub799\uc0b0\uc11c \uadf8\ub808\uc774\uc5c4 \ubca8(Alexander Graham Bell)\uc758 \uc5c5\uc801\uc744 \uae30\ub9ac\ub294 \uc758\ubbf8\uc5d0\uc11c \uadf8\uac00 \uc124\ub9bd\ud55c Bell System \uc5d0\uc11c \u2018B\u2019 (bel) \uc774\ub780 \uc0c1\ub300 \ub2e8\uc704\ub97c \uc774\ub984\ubd99\uc778 \uac83\uc5d0\uc11c \ucd9c\ubc1c\ud55c\ub2e4. B\ub294 \uc808\ub300 \ub2e8\uc704\uac00 \uc544\ub2cc \ub450\uac1c\uc758 \ubb3c\ub9ac\ub7c9 \ucc28\uc774\ub97c \uc9c0\uc218\ud615\ud0dc \uc2a4\ucf00\uc77c\uc778 Log\ub97c \uc774\uc6a9\ud574 \uc0c1\ub300\uc801\uc73c\ub85c \ud45c\uc2dc\ud558\ub294 \uc0c1\ub300 \ub2e8\uc704\uc774\ub2e4.<\/p>\n<p>\ub370\uc2dc\ubca8(decibel, \u33c8)\uc740 \uc804\uae30\uacf5\ud559\uc774\ub098 \uc9c4\ub3d9\u00b7\uc74c\ud5a5\uacf5\ud559 \ub4f1\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \ubb34\ucc28\uc6d0\uc758 \ub2e8\uc704\uc774\ub2e4. \ub370\uc2dc\ubca8\uc740 \uad6d\uc81c\ub2e8\uc704\uacc4(SI)\uc5d0\uc11c &#8216;SI\uc640 \ud568\uaed8 \uc4f0\uc9c0\ub9cc, SI\uc5d0 \uc18d\ud558\uc9c0 \uc54a\ub294 \ub2e8\uc704&#8217;\ub85c \uaddc\uc815\ub418\uc5b4 \uc788\ub2e4.<\/p>\n<p>\ub370\uc2dc\ubca8\uc740 \uc18c\ub9ac\uc758 \uc5b4\ub5a4 \uae30\uc900 \uc804\ub825\uc5d0 \ub300\ud55c \uc804\ub825\ube44\uc758 \uc0c1\uc6a9\ub85c\uadf8 \uac12\uc744 \ubca8(bel)\ub85c, \uadf8\uac83\uc744 \ub2e4\uc2dc 10\ubd84\uc758 1\ubc30(=\ub370\uc2dc[d])\ud55c \ubcc0\ud658\uc774\ub2e4. \ubca8(bel)\uc758 10\ubd84\uc758 \uc77c\uc774\ub780 \uc758\ubbf8\uc5d0\uc11c \ub370\uc2dc\ubca8[dB]\uc774\uba70, \ubca8\uc774 \uc0c1\uc6a9\uc5d0\uc11c\ub294 \ub108\ubb34 \ud070 \uac12\uc774\uae30\uc5d0 \uadf8\ub300\ub85c \uc4f0\uae30\ub294 \ud798\ub4e4\uae30 \ub54c\ubb38\uc5d0 \ud1b5\uc0c1\uc801\uc73c\ub85c\ub294 \ub370\uc2dc\ubca8\uc744 \uc774\uc6a9\ud55c\ub2e4. \uc18c\ub9ac\uc758 \uac15\ud568(\uc74c\uc555 \ub808\ubca8, SPL)\u00b7\uc804\ub825 \ub4f1\uc758 \ube44\uad50\ub098 \uac10\uc1e0\ub7c9 \ub4f1\uc744 \uc5d0\ub108\uc9c0 \ube44\ub85c \ub098\ud0c0\ub0bc \ub54c\uc5d0\ub3c4 \uc0ac\uc6a9\ub41c\ub2e4. \uc5b4\ub5a4 \uae30\uc900\uce58 A\uc5d0 \ub300\ud558\uc5ec B\uc758 \ub370\uc2dc\ubca8 \uac12 \uc740  \uc774 \ub41c\ub2e4.<\/p>\n<p>\uc5f0\uc0b0 \uc99d\ud3ed\uae30 \ub4f1\uc758 \uc99d\ud3ed\uae30\uc758 \uc785\ub825 \ubc0f \ucd9c\ub825 \uc804\uc555\ube44(\uc774\ub4dd, gain)\ub97c \ub098\ud0c0\ub0b4\ub294 \ub2e8\uc704\ub85c\ub3c4 \uc0ac\uc6a9\ud558\uba70, \ub2e4\uc74c \ud658\uc0b0\uc2dd\uc5d0 \uc801\uc6a9\ud558\uc5ec \uad6c\ud55c\ub2e4.<br \/>\n (\ub2e8, G:\ub370\uc2dc\ubca8\ub85c \ud658\uc0b0\ud55c \uc785\ub825\/\ucd9c\ub825\ube44 x:\uc785\ub825, y:\ucd9c\ub825)<\/p>\n<p>\uc804\uc555\ube44\uc758 \uc81c\uacf1\uc774 \uc804\ub825\ube44\uc774\ubbc0\ub85c, \uc55e\uc758 \uc804\ub825\ube44\uc758 \uc815\uc758\uc2dd\uc744 \uc804\uc555\ube44\ub85c \ub2e4\uc2dc \uc4f0\uba74 \ub85c\uadf8\uc758 \uacc4\uc218\uac00 2\ubc30\uc758 20\uc774 \ub41c\ub2e4. \uc785\ub825\uacfc \ucd9c\ub825\uc758 \ucc28\uc774\ub294 0\uc5d0 \uac00\uae4c\uc6b4 \uc218\uce58\uc5d0\uc11c\ubd80\ud130 100\ub9cc \ub2e8\uc704\uc758 \ud070 \uc218\uce58\uae4c\uc9c0 \ud3ed\ub113\uc740 \ubc94\uc704\ub97c \uac00\uc9c8 \uc218 \uc788\uc73c\ubbc0\ub85c, \uc774\ub7ec\ud55c \ubc29\ubc95\uc744 \uc4f4\ub2e4.<\/p>\n<p>\ucd9c\ucc98 : <a href=\"https:\/\/www.happycampus.com\/report-doc\/29435469\/\" target=\"_blank\">\ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ubaa9\ucc28 1. \ub370\uc2dc\ubca8\uc774\ub780? 2. \uacc4\uc0b0\ubc95 \ubcf8\ubb38\ub0b4\uc6a9 \uf071 \ub370\uc2dc\ubca8\uc774\ub780? dB (decibel)\uc740 \uc804\ud654\uc758 \uc544\ubc84\uc9c0\ub77c \ubd88\ub9ac\ub294 \uc54c\ub799\uc0b0\uc11c \uadf8\ub808\uc774\uc5c4 \ubca8(Alexander Graham Bell)\uc758 \uc5c5\uc801\uc744 \uae30\ub9ac\ub294 \uc758\ubbf8\uc5d0\uc11c \uadf8\uac00 \uc124\ub9bd\ud55c Bell System \uc5d0\uc11c \u2018B\u2019 (bel) \uc774\ub780 \uc0c1\ub300 \ub2e8\uc704\ub97c \uc774\ub984\ubd99\uc778 \uac83\uc5d0\uc11c \ucd9c\ubc1c\ud55c\ub2e4. B\ub294 \uc808\ub300 \ub2e8\uc704\uac00 \uc544\ub2cc \ub450\uac1c\uc758 \ubb3c\ub9ac\ub7c9 \ucc28\uc774\ub97c \uc9c0\uc218\ud615\ud0dc \uc2a4\ucf00\uc77c\uc778 Log\ub97c \uc774\uc6a9\ud574 \uc0c1\ub300\uc801\uc73c\ub85c \ud45c\uc2dc\ud558\ub294 \uc0c1\ub300 \ub2e8\uc704\uc774\ub2e4. \ub370\uc2dc\ubca8(decibel, \u33c8)\uc740 \uc804\uae30\uacf5\ud559\uc774\ub098 \uc9c4\ub3d9\u00b7\uc74c\ud5a5\uacf5\ud559 \ub4f1\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[425,4949,17422,17412,15393],"class_list":["post-12054","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-12-","tag-a","tag-17422","tag-17412","tag-15393"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/12054","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=12054"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/12054\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=12054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=12054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=12054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}