{"id":5768,"date":"2024-12-09T08:32:07","date_gmt":"2024-12-09T08:32:07","guid":{"rendered":"http:\/\/cinesori.co.kr\/?p=5768"},"modified":"2024-12-09T14:04:26","modified_gmt":"2024-12-09T14:04:26","slug":"about-microphone","status":"publish","type":"post","link":"https:\/\/cinesori.co.kr\/?p=5768","title":{"rendered":"About Microphone"},"content":{"rendered":"<div id='full_slider_1'  class='avia-fullwidth-slider main_color avia-shadow   avia-builder-el-0  el_before_av_heading  avia-builder-el-first   container_wrap sidebar_left'  ><div  class='avia-slideshow av-m4grxqaf-4f0edff2e97757f4e8288d90d7fe1acd avia-slideshow-featured av_slideshow_full avia-slide-slider av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied   avia-slideshow-1' data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:false,&quot;loop_autoplay&quot;:&quot;once&quot;,&quot;interval&quot;:5,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:false,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><ul class='avia-slideshow-inner ' style='padding-bottom: 35.833333333333%;'><li  class='avia-slideshow-slide av-m4grxqaf-4f0edff2e97757f4e8288d90d7fe1acd__0  av-single-slide slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-5769 avia-img-lazy-loading-not-5769\"  src=\"https:\/\/cinesori.co.kr\/wp-content\/uploads\/2024\/12\/vintage-microphone-used-in-recording-studio-og-1200x430.jpg\" width=\"1200\" height=\"430\" title='vintage-microphone-used-in-recording-studio-og' alt=''  itemprop=\"thumbnailUrl\"   \/><\/div><\/li><\/ul><\/div><\/div><div id='after_full_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_left'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small units'><div class='post-entry post-entry-type-page post-entry-5768'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m4grzcc3-43506da8d09aeaa3fe68f9f615fc101e\">\n#top .av-special-heading.av-m4grzcc3-43506da8d09aeaa3fe68f9f615fc101e{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-m4grzcc3-43506da8d09aeaa3fe68f9f615fc101e .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-m4grzcc3-43506da8d09aeaa3fe68f9f615fc101e .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-m4grzcc3-43506da8d09aeaa3fe68f9f615fc101e av-special-heading-h2 blockquote modern-quote modern-centered  avia-builder-el-1  el_after_av_slideshow_full  el_before_av_hr  avia-builder-el-first '><h2 class='av-special-heading-tag '  itemprop=\"headline\"  >\ub9c8\uc774\ud06c\ub85c\ud3f0\uc5d0 \ub300\ud55c \ubaa8\ub4e0\uac83  PT-1<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<div  class='hr av-m4h3qlml-dc4280b595656cbbd6a88ea8b7de261a hr-short  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-center'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-m4gv0tuw-434b54f057dc6b7983b73952072d417c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>\ub9c8\uc774\ud06c\ub85c\ud3f0 \uae30\ucd08 \uc774\ub860<\/h3>\n<p>\ub9c8\uc774\ud06c\ub85c\ud3f0\uc740 \uba54\uce74\ub2c8\uce7c(Mechanical) \uc5d0\ub108\uc9c0\uc778 Acoustic \uc0ac\uc6b4\ub4dc\uc6e8\uc774\ube0c\ub97c \uc77c\ub809\ud2b8\ub9ac\uce7c(Electrical) \uc5d0\ub108\uc9c0\uc778 \uc624\ub514\uc624 \uc2dc\uadf8\ub0a0\ub85c \uc804\ud658 \uc2dc\ud0a4\ub294\uc77c\uc744 \ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\ub9c8\uc774\ud06c\ub294 \ud558\ub098\uc758 Elctro acoustic trnsducer\ub85c\uc11c \ubd88\ub9ac\uc6b0\uae30\ub3c4 \ud558\ub294\ub370 Transducer \ub780 \uc5b4\ub5a0\ud55c \ud558\ub098\uc758 \ud615\ud0dc\ub97c \ucde8\ud558\ub294 \uc5d0\ub108\uc9c0\ub97c \ub2e4\ub978 \ud615\ud0dc\uc758 \uc5d0\ub108\uc9c0\ub85c \uc804\ud658\uc744 \uc2dc\ud0a4\ub294 \uc7a5\uce58\uc5d0 \uc8fc\uc5b4\uc9c0\ub294 \uc774\ub984\uc774\ub2e4.<\/p>\n<p>Acoustic Mode of Operation<br \/>\n\uc74c\uc6d0 \uc73c\ub85c\ubd80\ud130\uc758 \uc5b4\ucfe0\uc2a4\ud2f1 \uc0ac\uc6b4\ub4dc\uc6e8\uc774\ube0c\ub294 \ub2e4\uc74c\uc758 \ub450\uac00\uc9c0\uc911\uc758 \ud55c\uac00\uc9c0\ub85c \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc5d0 \uc601\ud5a5\uc744 \uac00\ud558\uac8c\ub41c\ub2e4.<\/p>\n<p>1. Pressure Operation<br \/>\n2. Velocity Operation<\/p>\n<p><strong>Pressure operation<\/strong><\/p>\n<p>\ud504\ub808\uc154 \ubc29\uc2dd\uc5d0 \uc758\ud558\uc5ec \uc791\uc6a9\ud558\ub294 \ub9c8\uc774\ud06c\ub85c\ud3f0 \ub2e4\uc774\uc544\ud504\ub7a8\uc740 \uacf5\uae30\ub0b4\uc758 \uc0ac\uc6b4\ub4dc \uc6e8\uc774\ube0c\uc758 \uc555\ub825\uc758 \ubcc0\ud654\uc5d0\ub530\ub77c \uadf8 \uc791\uc6a9\uc744 \uc77c\uc73c\ud0a8\ub2e4.<\/p>\n<p>\uc774\ub4e4 \ubc29\uc2dd\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc758 \uad6c\uc870\ub294 \uadf8\ub4e4\uc758 \ud558\uc6b0\uc9d5\uc774 \ud544\ud788 \uacf5\uae30\ub97c<br \/>\n\ucc28\ub2e8\uc2dc\ud0ac\uc218 \uc788\ub294\uac83\uc73c\ub85c\ud55c\ub2e4.\u00a0 \u00a0\uadf8 \uac83\uc740 \ud558\ub098\uc758 \uc587\uace0 \uac00\ubcbc\uc6b4 \ub2e4\uc774\uc544\ud504\ub7a8\uc774 \uadf8\ub4e4 \ud558\uc6b0\uc9d5\uc758 \ub0b4\ubd80\uc758 \uacf5\uae30\uc640 \uc678\ubd80\ub85c\ubd80\ud130\uc758 \uacf5\uae30\ub97c \ucc28\ub2e8 \ubd84\ub9ac\uc2dc\ud0a4\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\ud558\uc6b0\uc9d5\uc5d0\ub294 \uc544\uc8fc \uc791\uc740 vent \ud640\uc774 \uc790\ub9ac\ub97c \ud558\uace0\uc788\ub294\ub370 \uc774\ub4e4\uc758 \ubaa9\uc801\uc740 \ub2e8\uc9c0 \ud558\uc6b0\uc9d5 \ub0b4\ubd80\uc758 \uacf5\uae30\uc555\uacfc \uadf8 \uc678\ubd80\uc758 \uacf5\uae30\uc555\uc744 \ub3d9\uc77c\ud558\uac8c \ud558\uae30 \uc704\ud55c \uac83\uc774\uba70 \ub2e4\uc774\uc544\ud504\ub7a8\uc758 \ud558\uc6b0\uc9d5\ub0b4\uc758 \uacf5\uae30\ub97c \ucc28\ub2e8 \ud558\ub294\ub370\uc5d0\ub294 \uadf8 \uc5b4\ub5a0\ud55c \ubb38\uc81c\uc801 \uc601\ud5a5\uc744 \uc8fc\uc9c0\uc54a\ub294\ub2e4.\u00a0 \uadf8\ub9ac\uace0 \uc774\ub4e4\uc740 \ub2e8\uc9c0 \uacf5\uae30\uac00 \uc591\ubc29\ud5a5\uc73c\ub85c \uc11c\uc11c\ud788 \ud750\ub974\ub294 \uac83 \ub9cc\uc744 \ud5c8\uc6a9\ud558\uba70 \uadf8\ub4e4 \uc791\uc740 \uad6c\uba4d\uc740 \uc624\ub514\uc624 \uc8fc\ud30c\uc218\uc0c1\uc758 \uacf5\uae30\uac00 \uc804\ud574\uc9c0\uac70\ub098 \ube60\uc838\ub098\uac00\ub3c4\ub85d \ud558\uae30\uc5d0\ub294 \ub108\ubb34 \uc791\uc740 \ud06c\uae30\uc784\uc73c\ub85c \ubb38\uc81c\uac00 \ub418\uc9c0\uc54a\ub294\ub2e4.<\/p>\n<p>\ub610\ud55c \ud558\uc6b0\uc9d5\uc774 \uc644\uc804\ud558\uac8c \ubc00\ubd09\uc774 \ub418\uac8c\ub418\uba74 \uc624\ub514\uc624 \uc8fc\ud30c\uc218\ub4e4\uc5d0 \ub300\ud55c \ud504\ub808\uc154 \ucea1\uc290 \uc0c1\ud0dc\ub97c \ub0b4\ubcf4\uc774\uac8c\ub41c\ub2e4. \uadf8\ub9ac\uace0 \ud504\ub808\uc154 \ucf11\uc290\uc774 \uc0ac\uc6b4\ub4dc \uc6e8\uc774\ube0c \uc5d0\ub108\uc9c0 \ud750\ub984\uc758 \uacbd\ub85c\uc0c1\uc5d0 \uc704\uce58\ud558\uac8c\ub418\uba74 \ub2e4\uc774\uc544\ud504\ub7a8\uc758 \uc6c0\uc9c1\uc784\uc774 \uc77c\uc5b4\ub098\uac8c\ub41c\ub2e4.<\/p>\n<p>\ucea1\uc290 \ubc16\uc758 \uc555\ub825\uc774 \ud558\uc6b0\uc9d5 \ub0b4\uc758 \uc555\ub825\uc5d0 \ube44\ud558\uc5ec \ud06c\uac8c \ub098\ud0c0\ub0a0 \uacbd\uc6b0\uc5d0\ub294 (compression) \uadf8\ub4e4 \ub2e4\uc774\uc544\ud504\ub7a8\uc774 \uc548\ucabd\uc744 \ud5a5\ud558\uc5ec \uc6c0\uc9c1\uc774\uac8c\ub41c\ub2e4.\u00a0 \uadf8\ub7ec\ub098 \uadf8\ub4e4 \ucea1\uc290\ubc16\uc758 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154\uac00 \ub0ae\uc544\uc9c0\uace0 (rarefaction) \ud558\uc6b0\uc9d5\ub0b4\uc758 \uc555\ub825\uc774 \uadf8\ubcf4\ub2e4 \ud06c\uac8c \ub098\ud0c0\ub0a0 \ub54c\uc5d0\ub294 \uadf8\ub4e4 \ub2e4\uc774\uc544\ud504\ub7a8\uc774 \ubc14\uae65\ubc29\ud5a5\uc744 \ud5a5\ud558\uc5ec \uc6c0\uc9c1\uc774\uac8c\ub41c\ub2e4.<\/p>\n<p><strong>Velocity operation<\/strong><\/p>\n<p>\ubca8\ub85c\uc2dc\ud2f0 \ubc29\uc2dd\uc5d0\uc758\ud55c \uc791\uc6a9\uc740 \uadf8\ub4e4 \ub2e4\uc774\uc544\ud504\ub7a8\uc5d0 \uc804\ud574\uc9c0\ub294 \uc0ac\uc6b4\ub4dc \uc6e8\uc774\ube0c\uc758 \uc5e0\ud504\ub9ac\ud29c\ub4dc (amplitude) \uc640 \uc8fc\ud30c\uc218\uc5d0 \uc758\ud558\uc5ec \uadf8\ub4e4 \uc791\uc6a9\uc774 \uacb0\uc815\ub41c\ub2e4.\u00a0 \ud558\ub098\uc758 \uc587\uace0 \uac00\ubcbc\uc6b4 \uba54\ud0c8 \ud638\uc77c \ub9bd\ubcf8\uc774 \uace0\uc815\uccb4\uc5d0 \uc758\ud558\uc5ec \uadf8\ub4e4\uc758 \uc591\ub05d\uc774 \uace0\uc815\ub418\uc5b4 \uc788\ub294 \uacbd\uc6b0 \uc774\ub4e4\uc740 \uc55e\uc120 \ud504\ub808\uc154 \ubc29\uc2dd\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc774 \uadf8\ub4e4\uc5d0 \uc804\ud574\uc9c0\ub294 \uc555\ub825\uc758 \ubcc0\ud654\uc5d0\uc758\ud55c \uc6c0\uc9c1\uc784\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uc791\uc6a9\ub420\uc218 \uc5c6\uac8c\ub41c\ub2e4.<\/p>\n<p>\uc608\ub97c\ub4e4\uc790\uba74 \ud504\ub808\uc154 \ucea1\uc290\uc758 \uc791\uc740 \ubca4\ud2b8\ud640\uc744 \ubb34\uc2dc\ud558\uac8c\ub418\uba74\u00a0\ub2e4\uc774\uc544\ud504\ub7a8\uc740 \uc548\ucabd\uc73c\ub85c\uc758 \uc6c0\uc9c1\uc784 \uc0c1\ud0dc\ub97c \uacc4\uc18d\ud558\uc5ec \uc720\uc9c0\ud558\uac8c\ub418\uba70 \uc774\ub7ec\ud55c \ud604\uc0c1\uc740 \ub0b4\ubd80\uc5d0 \uc874\uc7ac\ud558\ub294 \uc555\ub825\ubcf4\ub2e4 \ud558\uc6b0\uc9d5 \uc678\ubd80\uc758 \uc555\ub825\uc774 \ub354\ud06c\uac8c \ub098\ud0c0\ub098\ub294\ud55c \uacc4\uc18d \uc720\uc9c0\ub418\uac8c\ub41c\ub2e4.<\/p>\n<p>\uadf8\ub7ec\ubbc0\ub85c \ubca8\ub85c\uc2dc\ud2f0 \ubc29\uc2dd\uc5d0\uc758\ud55c \ub9bd\ubcf8\uc740 \uadf8\uc5b4\ub5a0\ud55c \uacf5\uae30\uc758 \ubcfc\ub968\uc744 \uc9c0\ub2c8\uc9c0 \uc54a\uc73c\uba70 \ub2e4\uc74c\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \ub2e4\uc774\uc544\ud504\ub7a8\uc774\u00a0 \uc6c0\uc9c1\uc784\uc744 \ub0b4\ubcf4\uc774\uac8c\ub41c\ub2e4.<\/p>\n<p>\uc7a0\uc2dc \uacf5\uae30 \ubd84\uc790\ub4e4\uc5d0\ub300\ud55c \uc774\ub860\uc744 \uc0dd\uac01\ud574\ubcf4\uba74 \uacf5\uae30 \ubd84\uc790\ub4e4\uc774 \uc0ac\uc6b4\ub4dc \uc5d0\ub108\uc9c0\uc758 \uc9c4\ud589 \uacbd\ub85c\uc0c1\uc5d0 \uc704\uce58\ud560 \uacbd\uc6b0 \uadf8\ub4e4 \uc5d0\ub108\uc9c0\ub97c \ub2e4\ub978 \uc704\uce58\uc778 \ub4a4\ub85c \ub610\ub294 \uc55e\uc73c\ub85c \uc774\ub3d9\uc744 \uc2dc\ud0a4\uac8c\ub41c\ub2e4. \uc989 \uacf5\uae30 \ubd84\uc790\ub294 \ub192\uc740 \uc555\ub825\uc744 \ub0b4\ubcf4\uc774\ub294 \ucef4\ud504\ub808\uc158 \uc9c0\uc5ed\uc73c\ub85c\ubd80\ud130 \ub0ae\uc740 \uc555\ub825\uc744 \ub0b4\ubcf4\uc774\ub294 \uacf3\uc73c\ub85c \uc774\ub3d9\ud558\ub294 \uac83\uc774\ub2e4.\u00a0 \ub192\uc740 \uc555\ub825\uc744 \ub0b4\ubcf4\uc774\ub294 \uc9c0\uc5ed\uacfc \ub0ae\uc740 \uc555\ub825\uc744 \ub0b4\ubcf4\uc774\ub294 \uc9c0\uc5ed\uc758 \uc555\ub825 \ucc28\uc774\ub97c \uc6b0\ub9ac\ub294 \ud504\ub808\uc154\uadf8\ub77c\ub514\uc5d4\ud2b8 (pressure gradient) \ub77c\uace0\ud55c\ub2e4.<\/p>\n<p>\uc0ac\uc6b4\ub4dc \uc6e8\uc774\ube0c\uc758 \ucef4\ud504\ub808\uc158 (compression)\uc774 \ubca8\ub85c\uc2dc\ud2f0 \ubc29\uc2dd\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc5d0 \uc815\uba74\uc73c\ub85c \uc804\ud574\uc9c0\uba74 \ub2e4\uc774\uc544\ud504\ub7a8\uc740 \ub4a4\ub85c \uc6c0\uc9c1\uc774\uac8c\ub418\uace0<br \/>\n\uc606\uc73c\ub85c\ubd80\ud130 \uc804\ud574\uc9c8\uacbd\uc6b0\uc5d0\ub294 \uadf8\ub4e4\uc774 \uc544\ubb34\ub7f0 \uc6c0\uc9c1\uc784\uc744 \ub0b4\ubcf4\uc774\uc9c0 \uc54a\uc73c\uba70 \ub4a4\uc5d0\uc11c \uc804\ud574\uc9c8 \uacbd\uc6b0\uc5d0\ub294 \uadf8\ub4e4 \ub2e4\uc774\uc544\ud504\ub7a8\uc774 \uc55e\uc73c\ub85c \uc6c0\uc9c1\uc774\uac8c\ub41c\ub2e4.<\/p>\n<p>\uadf8\ub7ec\ub098 \ud504\ub808\uc154\ubc29\uc2dd \ub2e4\uc774\uc544\ud504\ub7a8\uc758 \uacbd\uc6b0\uc5d0\ub294 \uc5b4\ub290\ubc29\ud5a5\uc73c\ub85c \uc804\ud574\uc9c0\ub294\uac00\uc5d0 \uc0c1\uad00\uc5c6\uc774 \ub2e4\uc774\uc544\ud504\ub7a8\uc740 \ucea1\uc290\ud558\uc6b0\uc9d5\uc758 \uc548\ucabd\uc73c\ub85c\ub9cc \uc6c0\uc9c1\uc774\uac8c\ub41c\ub2e4.\u00a0 \uadf8\ub7ec\ubbc0\ub85c \ud504\ub808\uc154 \ubc29\uc2dd \uc791\uc6a9\uc740 \uc0ac\uc6b4\ub4dc \uc6e8\uc774\ube0c\uc758 \uc8fc\ud30c\uc218\uc640 \uadf8 \uc5e0\ud504\ub9ac\ud29c\ub4dc\uc5d0 \uc758\ud574\uc11c\ub9cc \uadf8 \uc6c0\uc9c1\uc784\uc774 \uacb0\uc815 \ub41c\ub2e4.\u00a0 \uc774\ub4e4\uc758 \uc6c0\uc9c1\uc784 \uc791\uc6a9\uc744 \uc77c\uc73c\ud0a4\ub294 \uac83\uc740 particle \ubca8\ub85c\uc2dc\ud2f0\ub85c\uc11c \uc774\uac83\uc740 \ub9bd\ubcf8\uc744 \ub458\ub7ec\uc2f8\ub294 \uacf5\uae30\ub0b4\uc758 \uc0ac\uc6b4\ub4dc \uc5d0\ub108\uc9c0 \ubd84\uc790\uc694\uc18c\uc758 \ud750\ub984\uc5d0 \ub300\ud55c \uac83\uc774\uba70 \uc18c\ub9ac\uc758 \uc2a4\ud53c\ub4dc\uc5d0 \ub300\ud55c \ubca8\ub85c\uc2dc\ud2f0\uc640\ub294 \ub2e4\ub978 \uac83\uc774\ub2e4.<\/p>\n<p><strong>Directional Property<\/strong><\/p>\n<p>\ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc5d0 \uc804\ud574\uc9c0\ub294 \ucef4\ud504\ub808\uc158 \uc601\ud5a5\uc740 \uadf8\ub2e4\uc774\uc544\ud504\ub7a8\uc744 \uc548\ucabd\uc73c\ub85c \uc6c0\uc9c1\uc774\uac8c\ud558\uba70 \ub808\uc5b4\ud329\uc158\uc758 \uc601\ud5a5\uc740 \ub2e4\uc774\uc544\ud504\ub7a8\uc744 \ubc16\uc744 \ud5a5\ud558\uc5ec \uc6c0\uc9c1\uc774\ub3c4\ub85d\ud55c\ub2e4. \uadf8\ub7ec\ubbc0\ub85c \ud504\ub808\uc154 \ubc29\uc2dd\uc73c\ub85c \uc791\ub3d9\ub418\ub294 \ub9c8\uc774\ud06c\ub294 \ubaa8\ub4e0 \ubc29\ud5a5\uc73c\ub85c\ubd80\ud130 \ub3d9\uc77c\ud55c \ubc18\uc751\uc744 \ub0b4\ubcf4\uc774\uac8c\ub418\ub294\ub370 \uc774\ub7ec\ud55c \ubc18\uc751 \ud615\ud0dc\ub97c \uc6b0\ub9ac\ub294 Omni &#8211; directional (\ubb34\uc9c0\ud5a5\uc131) \uc774\ub77c\uace0\ud55c\ub2e4.\u00a0 \ud504\ub808\uc154 \ubc29\uc2dd \uc791\ub3d9 \ub9c8\uc774\ud06c\ub4e4\uc740 \ud2b9\ud788 \uc800\uc8fc\ud30c\uc218\uc5d0 \ub300\ud558\uc5ec \ubb34\uc9c0\ud5a5\uc131 \ud2b9\uc131\uc744 \ub0b4\ubcf4\uc778\ub2e4.<\/p>\n<p>\uadf8\ub7ec\ub098 \uc774\uc640\ub294 \ub2ec\ub9ac \ub9bd\ubcf8\uc758 \uacbd\uc6b0\uc5d0\ub294 \uadf8\ub4e4\uc758 \uc791\uc6a9\uc774 \uc804\uba74\uacfc \ud6c4\uba74\uc5d0\ub9cc \uc601\ud5a5\uc744 \ubc1b\uace0 \uc591\ucabd \uce21\uba74\uc73c\ub85c\ubd80\ud130\ub294 \uadf8\uc5b4\ub5a0\ud55c \ubc18\uc751\uc744 \ub0b4\ubcf4\uc774\uc9c0 \uc54a\ub294\ub2e4\ub294 \uac83\uc744 \uc704\uc5d0\uc11c \uc774\uc57c\uae30 \ud558\uc600\ub2e4. \uc774\uc640\uac19\uc774\u00a0 \uc591 \uc0ac\uc774\ub4dc\ucabd \ub450\ubc29\ud5a5 \uc73c\ub85c\ubd80\ud130 \uc804\ud574\uc9c0\ub294 \uc601\ud5a5\uc5d0\ub9cc\u00a0 \uadf8 \uc791\uc6a9\uc744 \uc77c\uc73c\ud0a4\ub294 \ud615\ud0dc\ub97c \uc6b0\ub9ac\ub294 B i -directional \ub610\ub294 Figure of eight (\uc30d\uc9c0\ud5a5\uc131)\uc774\ub77c\uace0\ud55c\ub2e4.<\/p>\n<p>\uc774\uc640 \uac19\uc740 \uc30d\uc9c0\ud5a5\uc131 \ud2b9\uc131\uc740 \ubca8\ub85c\uc2dc\ud2f0 \ubc29\uc2dd\uc5d0 \uc758\ud558\uc5ec \ubc18\uc751\uc744 \ub0b4\ubcf4\uc774\ub294 \ub9c8\uc774\ud06c\uc758 \uace0\uc720 \ud2b9\uc131\uc774\ub41c\ub2e4.<\/p>\n<p>\uc6b0\ub9ac\ub294<br \/>\n\uc774\ub7ec\ud55c \ubb34\uc9c0\ud5a5\uc131\uacfc \uc30d\uc9c0\ud5a5\uc131 \ud2b9\uc131\uc744 \uae30\ubcf8\uc73c\ub85c\ud558\uc5ec \uadf8 \ubc18\uc751\ub2a5\ub825\uc744 \uc99d\uac00 \ub610\ub294 \uac10\uc18c \uc2dc\ud0b4\uc73c\ub85c\uc11c \uc5ec\ub7ec\uac1c\uc758 \ub2e4\uc591\ud55c \ud328\ud134 (Cardioid, Super cardioid, Hyper cardioid\ub4f1&#8230;)\uc744 \ub9cc\ub4e4\uc5b4 \ub0b4\uace0\uc788\ub2e4.<\/p>\n<p>\ub9c8\uc774\ud06c\uc758 \ubc29\ud5a5\uc131 \ud2b9\uc131\uacfc \uadf8 \ud328\ud134\uc744 \uc6d0\ud615\uc758 \ucc28\ud2b8\uc0c1\uc5d0 \ub098\ud0c0\ub0b4\uc5b4 \ubcf4\ub2e4<br \/>\n\uc27d\uac8c \uadf8\uc5d0\ub300\ud55c \uc774\ud574\ub97c \ub3d5\uace0\uc790 \ud558\ub294 \uac83\uc744 \ud3f4\ub77c \ub9ac\uc2a4\ud3f0\uc2a4 \ucc28\ud2b8 (polar response chart) \ub610\ub294 \uac04\ub2e8\ud788 \ud3f4\ub77c \ud328\ud134 (ploar pettern)\uc774\ub77c\uace0 \ud55c\ub2e4.<\/p>\n<p><strong>Omni &#8211; directional<\/strong><\/p>\n<p>\ubaa8\ub4e0 \ubc29\ud5a5\uc73c\ub85c\ubd80\ud130 \uc804\ud574\uc9c0\ub294 \uc0ac\uc6b4\ub4dc\uc5d0\ub300\ud55c \ubc18\uc751\uc744 \ub0b4\ubcf4\uc774\ub294\uac83\uc744 \ubb34\uc9c0\ud5a5\uc131 \uc774\ub77c\uace0 \ud55c\ub2e4.<\/p>\n<p>\uadf8\ub7ec\ub098 \uc774\ub4e4\uc758 \uc644\uc804\ud55c \ubb34\uc9c0\ud5a5\uc131 \uc791\uc6a9\uc740 \uac00\uc7a5 \uc774\uc0c1\uc801\uc778 \uacbd\uc6b0\uc5d0 \ub098\ud0c0\ub098\ub294\uac83\uc774\uba70 \uc2e4\uc81c\ub85c\ub294 \uc774\ub4e4\uc758 \ubc18\uc751\uc774 \ud56d\uc0c1 \uadf8\uc640\uac19\uc740 \uc644\uc804\ud55c \ubb34\uc9c0\ud5a5\uc131 \ud615\ud0dc\ub85c \ub098\ud0c0\ub098\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4.<\/p>\n<p>\ubb34\uc9c0\ud5a5\uc131 \ub9c8\uc774\ud06c\uac00 \uc0c1\ub300\ud558\ub294 \uc8fc\ud30c\uc218\uac00 \uace0 \uc8fc\ud30c\uc218\ub85c \ub420\uc218\ub85d \ubb34\uc9c0\ud5a5\uc131 \ub9c8\uc774\ud06c\ub294\u00a0 \ud2b9\uc815 \ubc29\ud5a5\uc5d0\ub300\ud55c \uadf8 \ubc18\uc751 \ub2a5\ub825\uc774 \ub354 \uac15\ud558\uac8c \ub098\ud0c0\ub098\uac8c\ub41c\ub2e4.\u00a0 \uc774\ub7ec\ud55c \uacb0\uacfc\uac00 \ub098\ud0c0\ub098\ub294 \uc774\uc720\ub294\u00a0 \uadf8\ub4e4 \uace0\uc8fc\ud30c\uc218 \uc6e8\uc774\ube0c \uae38\uc774\uc5d0\ub300\ud55c \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uacfc \uadf8\ub4e4 \uce90\ube44\ub137\uc758 \ud06c\uae30\uc758 \uc0c1\uad00 \uad00\uacc4\uc5d0\u00a0 \uc758\ud55c \uac83\uc774\ub2e4.<\/p>\n<p><strong>B i &#8211; directional<\/strong><br \/>\n\uc30d\uc9c0\ud5a5\uc131 \ud328\ud134\uc740 \ub2e4\uc774\uc544\ud504\ub7a8\uc758 \uc804\uba74\uacfc \ud6c4\uba74 \uc73c\ub85c\ubd80\ud130 \uc804\ud574\uc9c0\ub294 \uc18c\ub9ac\uc5d0\ub9cc \uadf8 \ubc18\uc751\uc744 \ub0b4\ubcf4\uc774\ub294 \uac83\uc73c\ub85c \u00a0figure of eight \uc774\ub77c\uace0\ub3c4 \ubd88\ub9ac\uc6b0\uba70 \uc774\ub7ec\ud55c \ud328\ud134\uc740 \ub9bd\ubcf8 \ub9c8\uc774\ud06c\uc758 \uc804\ud615\uc801\uc778 \ud2b9\uc9d5\uc774 \ub41c\ub2e4.<\/p>\n<p><strong>Uni &#8211; directional \ub610\ub294 Cardioid\u00a0<\/strong><br \/>\n\uc9c0\ud5a5\uc131 \ubc18\uc751\uc740 \uadf8\ub4e4\uc758 \ubc18\uc751\uc774 \ud55c \ubc29\ud5a5\uc5d0\uc11c\ub9cc \ub098\ud0c0\ub098\ub294 \uac83\uc73c\ub85c\u00a0 \ud2b9\ud788 \ub9c8\uc774\ud06c\uc758\u00a0 \uc804\uba74\uc73c\ub85c\ubd80\ud130 \uc804\ud574\uc9c0\ub294 \uc0ac\uc6b4\ub4dc\uc5d0 \ub300\ud558\uc5ec \ud2b9\ud788 \uac15\ud55c \ubc18\uc751\uc744 \ub0b4\ubcf4\uc774\ub294 \uac83\uc774\ub2e4. \uc774\ub4e4\uc758 \ud328\ud134 \ubaa8\uc591\uc774 \uc0ac\ub78c\uc758 \uc2ec\uc7a5 \ubaa8\uc591\uacfc\ub3c4 \ube44\uc2b7\ud558\ub2e4 \ud558\uc5ec \uc774\ub4e4\uc744 \uce74\ub514\uc624\uc774\ub4dc Cardioid\ub77c\uace0 \ubd80\ub974\uae30\ub3c4\ud55c\ub2e4<\/p>\n<p><strong>Super &#8211; cardioid<\/strong><br \/>\n\uc774\uac83\uc740 \uce74\ub514\uc624\uc774\ub4dc \ud328\ud134\uc5d0 \ub9c8\uc774\ud06c \ub4b7\ud3b8\uc73c\ub85c\ubd80\ud130 \uc804\ud574\uc9c0\ub294 \uc57d\uac04\uc758 \uc2dc\uadf8\ub0a0 \ubc18\uc751\uc744 \ubcf4\uc774\ub294 \ud2b9\uc131\uc744 \uac00\ub9ac\ud0a8\ub2e4.<\/p>\n<p>\uc774\uc640\uac19\uc774 \ub9c8\uc774\ud06c\uac00 \ub2e4\uc591\ud55c \ud328\ud134\uc744 \ub0b4\ubcf4\uc774\ub3c4\ub85d \ud558\ub294\uac83\uc740\u00a0 \ub9c8\uc774\ud06c \ud328\ud134\uc758 \uae30\ubcf8\uc774 \ub418\ub294 \ubb34\uc9c0\ud5a5\uc131 \ud328\ud134\uacfc \uc30d\uc9c0\ud5a5\uc131 \ud328\ud134\uc744 \uc870\ud569\uc2dc\uceac \ub9cc\ub4e4\uc5b4 \ub0b4\uace0\uc788\ub2e4.<\/p>\n<p>\ubb34\uc9c0\ud5a5\uc131 \ud328\ud134\ud2b9\uc131\uc5d0 \uc5b4\ub5a0\ud55c \ube44\uc728\ub85c \uc30d\uc9c0\ud5a5\uc131 \ud328\ud134\uc744 \ub354\ud558\ub290\ub0d0\uc5d0<br \/>\n\ub530\ub77c\u00a0 \uc218\ud37c\uce74\ub514\uc624\uc774\ub4dc, \ud558\uc774\ud37c \uce74\ub514\uc624\uc774\ub4dc \ub4f1\uc758 \uc5ec\ub7ec \uac00\uc9c0 \uce74\ub514\uc624\uc774\ub4dc \ud328\ud134\uc744 \uc5bb\uc744\uc218\uc788\uac8c\ub41c\ub2e4.<\/p>\n<h3>Microphone Sensitivity<\/h3>\n<p>\ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \uc13c\uc2dc\ud2f0\ube44\ud2f0 (\uac10\ub3c4) \ub780 \uadf8\ub4e4 \ub2e4\uc774\uc544\ud504\ub7a8\uc0c1\uc5d0 \uc8fc\uc5b4\uc9c4 \uc5b4\ub5a0\ud55c \uc0ac\uc6b4\ub4dc \uc555\ub825\uc73c\ub85c\ubd80\ud130 \ubc1c\uc0dd\ub418\ub294 \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0\ub97c \uce21\uc815\ud55c \uac12\uc744 \uac00\ub9ac\ud0a8\ub2e4.<\/p>\n<p>\uc608\ub97c\ub4e4\uc790\uba74, \ub450 \uac1c\uc758 \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc5d0 \ub3d9\uc77c\ud55c \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154\ub808\ubca8\uc774 \uc8fc\uc5b4\uc9c8 \uacbd\uc6b0 \uadf8\ub4e4 \ub9c8\uc774\ud06c\ub85c\ud3f0\uc911 \ubcf4\ub2e4 \ub192\uc740 \ubcfc\ud14c\uc774\uc9c0\ub97c \ub0b4\ubcf4\uc774\ub294 \uac83\uc774\ubcf4\ub2e4\u00a0 \ub192\uc740 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub97c \uc9c0\ub2c8\ub294 \ub9c8\uc774\ud06c\uac00 \ub41c\ub2e4.<\/p>\n<p>\ubcf4\ub2e4 \ub192\uc740 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub294 (\uac10\ub3c4 ) \uc0ac\uc6b4\ub4dc\uc5d0 \ub300\ud55c \ub9c8\uc774\ud06c \ubc18\uc751\uc758 \uc608\ubbfc\ud55c \uc815\ub3c4\ub97c \uc774\uc57c\uae30 \ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n<p><strong>EIA (Electronic Industry Association) Sensitivity<\/strong><br \/>\nEIA \uc758 \uc2a4\ud398\uc2dc\ud53c\ucf00\uc774\uc158\uc740 1mW (0dB) \uc640 threshold of hearing \uc778 0dB SPL, 1kHz= 0.0002 dyne per sq,cm \uc5d0 \ub300\ud55c \uac83\uc744 \uac00\ub9ac\ud0a8\ub2e4.<br \/>\n\uc0ac\uc6b4\ub4dc \ud504\ub808\uc154 \ub808\ubca8\uc5d0 \ub300\ud55c \ud30c\uc6cc \ub9e4\uce6d\uc0c1\uc758 \ub9c8\uc774\ud06c\ub85c \ubd80\ud130 \ucd9c\ub825 \ud30c\uc6cc (dBm)\ub97c \uc5bb\uae30 \uc704\ud574\uc11c\ub294 \uadf8\ub4e4 \ud2b9\uc815 \ub9c8\uc774\ud06c\uc5d0 \uac04\ub2e8\ud788 \uc774\ub4e4 EIA\uac12\uc744 \ub354\ud558\uba74 \ub418\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\uc774\ub97c \uc608\ub97c\ub4e4\uc790\uba74, -150dB EIA\uc758 \ub0ae\uc740 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub97c \uc9c0\ub2c8\ub294 \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \uacbd\uc6b0 \uadf8\ub4e4\uc758 80SPL \uc0c1\uc5d0\uc11c\uc758 \ucd9c\ub825\ud30c\uc6cc\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ub41c\ub2e4.<\/p>\n<p>EIA\uc758 \ub9ac\ud37c\ub7f0\uc2a4 \ub808\ubca8\uc740 0dBm, 0dB SPL\uc784\uc73c\ub85c \uadf8 \ub9c8\uc774\ud06c\uac00 80dB SPL\uc0c1\uc5d0\uc11c \ub0b4\ubcf4\uc774\ub294 \ucd9c\ub825 \ud30c\uc6cc\ub294 -150 + 80 = -70dBm \uc774 \ub41c\ub2e4.<\/p>\n<p><strong>Millivolt Per Pascal (mV\/Pa) \ub610\ub294 Open circuit voltage<\/strong><br \/>\n\uc774\ub4e4 \uc13c\uc2dc\ud2f0\ube44\ud2f0 \uc2a4\ud398\uc2dc\ud53c\ucf00\uc774\uc158\uc740 \uc8fc\ub85c \uc720\ub7fd\ucabd\uc758 \uc81c\uc870 \ud68c\uc0ac\ub4e4\uc778 Sennheiser \ub610\ub294 AKG \uc640 \uac19\uc740 \ub9c8\uc774\ud06c \uc81c\uc870 \ud68c\uc0ac\ub4e4\uc774 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\ub9c8\uc774\ud06c\uc758 \uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0\ub294 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154 \ub808\ubca8\uc5d0 \ube44\ub840\ud558\uac8c \ub098\ud0c0\ub098\uba70 \uc885\uc885 \uadf8\ub4e4 \ub9c8\uc774\ud06c \uc790\uccb4\ubcf4\ub2e4\ub294 \ubcf4\ub2e4 \ub192\uc740 \uc784\ud398\ub2e8\uc2a4\uc5d0 \ub300\ud55c\u00a0 \ub9c8\uc774\ud06c\uc758 \uc791\ub3d9\uc5d0 \uc801\ud569\ud55c \uac83\uc73c\ub85c \ub9c8\uc774\ud06c\uc758 \uac10\ub3c4\uc640 \uc8fc\ud30c\uc218 \ubc18\uc751\uc744 \uad00\ucc30\ud558\ub294\ub370 \uc0ac\uc6a9\ud558\uace0\uc788\ub2e4.<\/p>\n<p>\uc774\ub4e4 \uc2a4\ud329\uc740 \uc8fc\uc5b4\uc9c4 SPL\uc5d0\ub300\ud55c \uc989\uac01\uc801\uc778 \ubcfc\ud14c\uc774\uc9c0 \ub808\ubca8\uc5d0\ub300\ud55c \ubc18\uc751\uc774 \uc5b4\ub5a0\ud55c\uac00\uc5d0 \ub300\ud55c \uc544\uc774\ub514\uc5b4\ub97c \uc804\ud574\uc8fc\uace0 \uc788\ub2e4. \uc774 \uc2a4\ud329\uc740 \ub2e4\ub978 \ub808\ubca8\ub85c \uc804\ud658\ub418\uc5b4 \uadf8 \uac12\uc744 \uc77d\ub294 \uac83 \ub610\ud55c \uac00\ub2a5\ud55c\ub370 \uadf8\uac83\uc740 \uadf8\ub4e4\uac04\uc758 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154 \ub808\ubca8\uc744 \ud655\uc778\ud574\ubcf4\ub294 \uac83\uc73c\ub85c \uc774\ub8e8\uc5b4 \uc9c4\ub2e4.<\/p>\n<p>dB = 20log (pressure1\/pressure2)<br \/>\n1 Pa\uc740 10dyne\/sq, cm\uc784\uc73c\ub85c \uc774\uac83\uc740 1dyne\/sq cm \ud504\ub808\uc154\uc758 10\ubc30\uc640 \ub3d9\uc77c\ud558\ub2e4. \uadf8\ub9ac\uace0 \uc774\ub294 \ub610\ud55c 1 Pa\uc740 \uadf8\ub4e4 1dyne\/ sq, cm\ubcf4\ub2e4 20dB \ub192\uc740 \uac83\uc774\ub2e4.<\/p>\n<h3>CIRCUIT MATCHING<\/h3>\n<p>\ub9c8\uc774\ud06c\ub85c\ud3f0\uc774 \uadf8\ub4e4 \ub2e4\uc74c \ub2e8\uacc4\uc758 \uc11c\ud0a4\ud2b8\uc778 \ub9c8\uc774\ud06c \uc570\ud504\ub85c \uc5f0\uacb0 \ub418\ub294\ub370\uc5d0\ub294 \ub2e4\uc74c \ub450\uac00\uc9c0 \uae30\ubcf8\uc801\uc778 \uc11c\ud0a4\ud2b8 \uad6c\uc131\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\uc73c\uba70 \uadf8\ub4e4\uc740 Voltage matched \uc640 Power matched \uc758 \uacbd\uc6b0\uc774\ub2e4.<\/p>\n<p><strong>Voltage matching<\/strong><br \/>\n\uc774 \uc870\uac74\uc740 \uc5e0\ud504\uc758 \uc785\ub825 \uc784\ud398\ub2e8\uc2a4\uac00 \ub9c8\uc774\ud06c\ub85c\ud3f0 \uc18c\uc2a4 \uc784\ud398\ub2e8\uc2a4\uc758 \uba87 \uacf1\uc808\uc774 \ub418\ub294 \uc0c1\ud0dc\ub85c \ub9c8\uc774\ud06c\ub85c\ud3f0\uc774 \uc791\ub3d9\ub418\ub3c4\ub85d \ud558\ub294 \uacbd\uc6b0\uc774\ub2e4. \uc774\ub7ec\ud55c \ubcfc\ud14c\uc774\uc9c0 \ub9e4\uce6d\uc740 \u00a0\ub9c8\uc774\ud06c\uc758 \uc8fc\ud30c\uc218 \ud2b9\uc131\uc744 \uc720\uc9c0\ud558\ub3c4\ub85d \ud558\ub294\ub370 \uc8fc \ubaa9\uc801\uc774\uc788\ub2e4.<\/p>\n<p><strong>Power m atching<\/strong><br \/>\n\uc774 \uc870\uac74\uc758 \uacbd\uc6b0\ub294 \ub9c8\uc774\ud06c\ub85c\ud3f0 \uc5e0\ud504\uc758 \uc785\ub825 \uc784\ud398\ub2e8\uc2a4\uac00 \ub9c8\uc774\ud06c\ub85c\ud3f0 \uc18c\uc2a4 \uc784\ud398\ub2e8\uc2a4\uc640 \ube44\uc2b7\ud558\uac8c \ub098\ud0c0\ub098\ub294 \uacbd\uc6b0\uc774\ub2e4.<br \/>\n\uc774 \uacbd\uc6b0\ub294 \ubcf4\ub2e4 \ub9ce\uc740 \ucee4\ub80c\ud2b8\uac00 \ub9c8\uc774\ud06c\ub85c\ud3f0 \uc73c\ub85c\ubd80\ud130 \uc5e0\ud504\uc758 \uc785\ub825 \uc11c\ud0a4\ud2b8\uc5d0 \uc758\ud558\uc5ec \uc5bb\uc5b4\uc9c0\uac8c\ub41c\ub2e4.<br \/>\n\ub85c\ub4dc \uc784\ud398\ub2e8\uc2a4\ub85c \uc5f0\uacb0\ub418\ub294 \ub9c8\uc774\ud06c \ub85c\ubd80\ud130\uc758 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0\ub294 \ub2e4\uc74c\uc5d0 \uc758\uc874\ud558\uac8c\ub418\ub294\ub370 \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc5d0 \uc804\ud574\uc9c0\ub294 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154 \ub808\ubca8\uacfc \ub9c8\uc774\ud06c\uc0c1\uc758 no -load voltage \uc758 \ubc1c\uc0dd \ub610\ub294 \uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0 \uadf8\ub9ac\uace0 \uad00\ub828\ub41c \ub85c\ub4dc \uc784\ud398\ub2e8\uc2a4 \uac12\uacfc \ub9c8\uc774\ud06c\ub85c\ud3f0 \uc18c\uc2a4 \ub610\ub294 \ub0b4\ubd80 \uc784\ud398\ub2e8\uc2a4 \uc774\ub2e4.<\/p>\n<h3>Output Level \/ \ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ucd9c\ub825 \ub808\ubca8<\/h3>\n<p>\ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ucd9c\ub825 \ub808\ubca8\uc740 \ubcfc\ud14c\uc774\uc9c0\ub85c \ub610\ub294 dBm\uc73c\ub85c \ub098\ud0c0\ub0b8\ub2e4.<\/p>\n<p><strong>High impedance microphones \ub192\uc740 \uc784\ud398\ub2e8\uc2a4 \uac12\uc744 \ub0b4\ubcf4\uc774\ub294 \ub9c8\uc774\ud06c\ub85c\ud3f0 ( 1K Ohm \uc774\uc0c1\uc758 \uac12\uc744\ub0b4\ubcf4\uc774\ub294 \uac83)<\/strong><\/p>\n<p>\ud558\uc774 \uc784\ud398\ub2e8\uc2a4 \ub9c8\uc774\ud06c\uc758 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub294 \uc8fc\ub85c \uadf8\ub4e4\uc774 \uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0 \ub610\ub294 \ub178- \ub85c\ub4dc \ubcfc\ud14c\uc774\uc9c0 \uac12\uacfc \ub3d9\uc77c\ud558\uac8c \ub098\ud0c0\ub098\ub294 \uac83\uc744 \uac00\ub9ac\ud0a8\ub2e4.<\/p>\n<p>\uc774\ub4e4 \uce21\uc815\uc744 \uc704\ud558\uc5ec \uc0ac\uc6a9\ub418\ub294 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154\ub294 1microbar =<br \/>\n74dB SPL (1 dyne\/sq. cm)\uac00 \ub41c\ub2e4.<br \/>\n\uc544\uc8fc \uc77c\ubd80\uc758 \uacbd\uc6b0\uc5d0 \ud55c\ud558\uc5ec \uadf8\ub4e4\uc758 \uc571\uc194\ub8e8\ud2b8<br \/>\n\ubcfc\ud14c\uc774\uc9c0\uac00 \ubcfc\ud2b8\ub85c \ub610\ub294 \ubc00\ub9ac \ubcfc\ud2b8\ub85c \ub098\ud0c0\ub0b4\ub294 \uacbd\uc6b0\ub3c4 \uc788\uc73c\ub098 \ub9ac\ud37c\ub7f0\uc2a4 \ub808\ubca8\ub85c\ub85c\ub294 \ub370\uc2dc\ubca8\uacfc 1\ubcfc\ud2b8\uac00 \uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n<p>1volt = 0 dBV (\uc5ec\uae30\uc5d0\uc11c V\uac00 \uac00\ub9ac\ud0a4\ub294 \uac83\uc740 \ub9ac\ud37c\ub7f0\uc2a4<br \/>\n\ubcfc\ud14c\uc774\uc9c0\uac00 1V\uc784\uc744 \uc758\ubbf8\ud558\ub294 \uac83\uc774\ub2e4).<\/p>\n<p>\uc608\ub97c\ub4e4\uc790\uba74 \ud558\ub098\uc758 \ud558\uc774 \uc784\ud398\ub2e8\uc2a4 \ub9c8\uc774\ud06c\uc758 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub97c \ub2e4\uc74c\uacfc\uac19\uc774 \ub098\ud0c0\ub0b4\ub0bc\uc218\uc788\ub2e4.<\/p>\n<p><strong>-60 dBV for 1 dyne\/sq.cm = -60dBV for 74dB SPL<\/strong><\/p>\n<p>\uc704\uc758 \uc218\uc2dd\uc774 \ub098\ud0c0\ub0b4\ub294 \uac83\uc740 \ub9c8\uc774\ud06c\uc758 \ub2e4\uc774\uc544\ud504\ub7a8\uc0c1\uc5d0 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154\ub808\ubca8\uc774 1dyne\/sq.cm\ub85c \ub098\ud0c0\ub0a0\u00a0 \uacbd\uc6b0 \uadf8\ub4e4\uc758 \uc624\ud508\uc11c\ud0a4\ud2b8 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0\uac00 -60dBV\uac00 \ub420\uac83\uc774\ub77c\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\uc774\ub4e4\uc758 \uc2e4\uc81c \uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uad6c\ud560\uc218\uc788\ub2e4.\u00a0 \ubcfc\ud14c\uc774\uc9c0\ub294 \ub2e4\uc74c\uc758 \uacf5\uc2dd dB = 20 log (V1\/V2)\uc744 \uc774\uc6a9\ud558\uc5ec \uad6c\ud558\uac8c \ub428\uc73c\ub85c \uc774\uac83\uc744 \uc789\uc694\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc774\ub41c\ub2e4.<\/p>\n<p>-60dBV = 20 log (\uc624\ud508 \uc11c\ud0a4\ud2b8 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0 \/ \ub9ac\ud37c\ub7f0\uc2a4 \ubcfc\ud14c\uc774\uc9c0)<br \/>\n-60 = 20 log (\uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0 \/ 1volt)<br \/>\nlog (\uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0 \/ 1V), = -60 \/ 20, = -3<br \/>\n\uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0 \/ 1V = 0.001<\/p>\n<p>\uc624\ud508\uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0\ub294 0.001 \ub610\ub294 1\ubc00\ub9ac \ubcfc\ud2b8\ub85c \ub41c\ub2e4.<\/p>\n<p>\uc704\uc758 \uacb0\uacfc \uac12\uc744 \ud1b5\ud574 \uc6b0\ub9ac\uac00 \uc815\uc758 \ud560\uc218\uc788\ub294 \uac83\uc740 \uc774 \ub9c8\uc774\ud06c\ub85c\ubd80\ud130 1\ubbf8\ud130 \ub5a8\uc5b4\uc9c4\uacf3\uc5d0\uc11c \ub9c8\uc774\ud06c\uc5d0 \uc9c1\uc811\uc801\uc73c\ub85c \uc774\uc57c\uae30\ud558\ub294 \uc0ac\ub78c\uc5d0 \ub300\ud574 \ub9c8\uc774\ud06c\uac00 \ub0b4\ubcf4\uc774\ub294 \ucd9c\ub825\uc740 -60dBV \ub610\ub294 1 \ubc00\ub9ac\ubcfc\ud2b8 \ub77c\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\ub9c8\uc774\ud06c\uc758 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0\uc758 \ubcc0\ud654\ub294 \uadf8\ub4e4 \ub2e4\uc774\uc544\ud504\ub7a8\uc0c1\uc758 \uc0ac\uc6b4\ub4dc<br \/>\n\ud504\ub808\uc154\ub808\ubca8\uacfc \ube44\ub840\ud558\uac8c \ub098\ud0c0\ub09c\ub2e4. \uadf8\ub7fc\uc73c\ub85c\u00a0 SPL\uc774 \ub450\ubc30\ub85c(+6dB) \uc99d\uac00\ud558\uac8c\ub418\uba74 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0\ub610\ud55c \uadf8 \ub450\ubc30\uc778 +6dB\uc758 \uc99d\uac00\ub97c \ub0b4\ubcf4\uc774\uac8c\ub41c\ub2e4.\u00a0 \uadf8\ub7ec\ub098 \uc5ec\uae30\uc5d0\uc11c \uba85\uc2ec\ud560 \uac83\uc740 \uc6b0\ub9ac\ub294 \ud604\uc7ac \uc774\ub4e4\uc758 \uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0\uc5d0 \uad00\ud558\uc5ec \uc774\uc57c\uae30 \ud558\uace0\uc788\ub2e4\ub294 \uac83\uc774\ub2e4. \ub9cc\uc77c \ub9c8\uc774\ud06c\uac00 \uadf8\ub4e4\uc758 \ub0b4\ubd80\uc801 \uc790\uccb4 \uc784\ud398\ub2e8\uc2a4\uc640 \ub3d9\uc77c\ud55c\uac12\uc758 \uc784\ud398\ub2e8\uc2a4\ub97c \uc9c0\ub2c8\ub294\uac83\uacfc \uc5f0\uacb0\uc774 \ub418\ub294 \uacbd\uc6b0 \uadf8\ub4e4\uc758 \ucd9c\ub825 \ubcfc\ud14c\uc774\uc9c0\ub294 \uadf8\ub4e4 \uc624\ud508 \uc11c\ud0a4\ud2b8 \ubcfc\ud14c\uc774\uc9c0\uc758 \uc808\ubc18 \uac12\uc73c\ub85c \ub5a8\uc5b4\uc9c0\uac8c\ub41c\ub2e4.<\/p>\n<p><strong>Low Impedance Microphone (1k Ohm \uc774\ud558\uc758 \uc784\ud398\ub2e8\uc2a4\ub97c \ub0b4\ubcf4\uc774\ub294 \ub9c8\uc774\ud06c\ub85c\ud3f0) <\/strong><\/p>\n<p>\ub0ae\uc740 \uc784\ud398\ub2e8\uc2a4 \ub9c8\uc774\ud06c\uc758 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub294 \ub9c8\uc774\ud06c\uc758 \ud30c\uc6cc \ub9e4\uce6d \uc870\uac74\uc5d0 \uc758\ud55c \uac83\uc774\ub2e4. \uc774\ub7ec\ud55c \uc870\uac74\ud558\uc5d0\uc11c \ub85c\ub4dc \uc784\ud398\ub2e8\uc2a4\ub294 \ub9c8\uc774\ud06c\uc758 \ub0b4\ubd80 \uc790\uccb4 \uc784\ud398\ub2e8\uc2a4\uc640 \uac19\uac8c \ub098\ud0c0\ub09c\ub2e4.\u00a0 \uc774\uc870\uac74\uc740 \uadf8\ub4e4 \ub85c\ub4dc<br \/>\n(\uc5e0\ud504\uc758 \uc785\ub825) \ub0b4\uc5d0 \ucd5c\ub300\uc758 \ud30c\uc6cc\uc758 \uc18c\ubaa8\uac00 \uc77c\uc5b4\ub098\ub3c4\ub85d \ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\uc784\ud398\ub2e8\uc2a4\uac00 \ub0ae\uc740 \ub9c8\uc774\ud06c\uc758 \ucd9c\ub825 \ub808\ubca8\uc740 1mW\ub85c \ub418\uba70\u00a0 0 dBm\uacfc \uac19\ub2e4.\u00a0 \ud30c\uc6cc \ub9e4\uce6d\uc5d0\uc11c\uc758 \ub9c8\uc774\ud06c\uc758 \ucd9c\ub825 \ud30c\uc6cc\ub294 dBm\uc744 \uc0ac\uc6a9\ud574 \uadf8 \uac12\uc744\u00a0 \ub098\ud0c0\ub0b4\ub3c4\ub85d \ud558\uace0 \uc788\ub2e4.\u00a0 \uc2a4\ud329\uc0ac\uc758\u00a0 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154 \ub808\ubca8\uc740 10dyne per sq.cm, = 10 microbar, = 1Pa, = 94dB SPL \uc640 \uac19\uc774 \ub41c\ub2e4.<\/p>\n<p>\uc784\ud398\ub2e8\uc2a4 \ub808\ubca8\uc774 \ub0ae\uc740 \ub9c8\uc774\ud06c\uc758 \uc13c\uc2dc\ud2f0\ube44\ud2f0\uc5d0 \ub300\ud55c \uc2a4\ud329\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \ub41c\ub2e4.<\/p>\n<p>Audio Technica\uc0ac\uc758 \ubaa8\ub378 ATM21 \ub9c8\uc774\ud06c\ub294 600\uc634\uc758 \uc784\ud398\ub2e8\uc2a4\ub97c \uc9c0\ub2c8\uace0 \uc788\uc73c\uba70 \uc13c\uc2dc\ud2f0\ube44\ud2f0\ub294 -60dBm ( 0 dB = 1mW\/Pa)\ub85c \uc2a4\ud329\uc5d0 \ud45c\uc2dc\ub418\uace0\uc788\ub2e4.<\/p>\n<p>\uc774 \uc2a4\ud399\uc73c\ub85c\ubd80\ud130 \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc758 \uc0ac\ud56d\uc744 \uc774\ud574\ud560\uc218 \uc788\uac8c \ub41c\ub2e4.<br \/>\n\uc774 \ub9c8\uc774\ud06c\uc758 \ub9ac\ud37c\ub7f0\uc2a4 \ub808\ubca8\uc740 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc1541pascal(=10dyne\/sq.m)\uc77c\ub54c 1mW\uc758 \ucd9c\ub825\uc784\uc744 \ub098\ud0c0\ub0b4\uba70 \uc774\uac83\uc740\u00a0 94dB SPL \uc774 \ub41c\ub2e4.<\/p>\n<p>\ub610\ub2e4\ub978 \uc0ac\ud56d\uc740 \uc774\ub4e4\uc758 \ub0b4\ubd80 \uc790\uccb4 \uc784\ud398\ub2e8\uc2a4\uac00 600\uc634 \uc774\ub77c\ub294 \uac83\uc774\ub2e4.\u00a0 \ud30c\uc6cc \ub9e4\uce6d\uc758 \uacbd\uc6b0 \ub9c8\uc774\ud06c\uc758 \uc0ac\uc6b4\ub4dc \ud504\ub808\uc154 \ub808\ubca8\uc774 10dyne\/sq.cm \uc774\ub77c\ud560 \ub54c \ub9c8\uc774\ud06c\uc5d0 \ub300\ud55c \uc13c\uc2dc\ud2f0\ube44\ud2f0 \uc2a4\ud398\uc2dc\ud53c\ucf00\uc774\uc158\uc774 \uc6b0\ub9ac\uc5d0\uac8c \uc774\uc57c\uae30 \ud558\ub294 \uac83\uc740 \uac83\uc740 \ub9c8\uc774\ud06c\uc758 \ub85c\ub4dc\ub0b4\uc5d0 -60dBm \uc758 \uc2dc\uadf8\ub0a0 \ud30c\uc6cc\uac00 \ub098\ud0c0\ub098\uac8c \ub420\uac83\uc774\ub77c\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\ub9c8\uc774\ud06c\ub85c\ud3f0\uc758 \ubaa8\ub4e0\uac83 PART-2<\/p>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5768","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/5768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5768"}],"version-history":[{"count":7,"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/5768\/revisions"}],"predecessor-version":[{"id":5779,"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/5768\/revisions\/5779"}],"wp:attachment":[{"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cinesori.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}