{"id":2851,"date":"2018-08-30T10:30:58","date_gmt":"2018-08-30T08:30:58","guid":{"rendered":"https:\/\/websites.fraunhofer.de\/iis_audioblog?p=2851"},"modified":"2020-01-03T17:27:47","modified_gmt":"2020-01-03T15:27:47","slug":"xheaac-mpeg-d-drc-android-pie","status":"publish","type":"post","link":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/xheaac-mpeg-d-drc-android-pie","title":{"rendered":"Android Pie \uae30\uae30\uc758 \ud544\uc218 \uc694\uc18c\uc778 xHE-AAC \uc640 MPEG-D DRC"},"content":{"rendered":"<p>xHE-AAC\ub97c \uc774\uc6a9\ud558\uc5ec \ucf58\ud150\uce20\ub97c \ubc30\ud3ec\ud558\uace0\uc790 \ud558\ub294 \uc11c\ube44\uc2a4 \uacf5\uae09\uc790 \ubc0f \uc571 \uac1c\ubc1c\uc790\ub294 \ud504\ub77c\uc6b4\ud638\ud37c\uc5d0 \uc5f0\ub77d\ud558\uc5ec \uc804\ubb38 xHE-AAC \uc778\ucf54\ud130 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc5d1\uc138\uc2a4 \ud558\uac70\ub098 Modulation Index \ubc0f Telos\uc640 \uac19\uc740 \uc2a4\ud2b8\ub9ac\ubc0d \uc7a5\ube44 \ud30c\ud2b8\ub108\uc640 \ud611\uc5c5\ud560 \uc218 \uc788\ub2e4. <a href=\"https:\/\/www.iis.fraunhofer.de\/content\/dam\/iis\/de\/doc\/ame\/wp\/FraunhoferIIS_xHE-AAC_Whitepaper.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">xHE-AAC <\/a><a href=\"https:\/\/www.iis.fraunhofer.de\/content\/dam\/iis\/de\/doc\/ame\/wp\/FraunhoferIIS_xHE-AAC_Whitepaper.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\ubc0f MPEG-D DRC\uc5d0 \ub300\ud55c \uc8fc\uc694 \uc0ac\ub840, \uc7a5\uc810 \ubc0f \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc138\ubd80 \uc0ac\ud56d\uc744 \uc124\uba85\ud558\ub294 \uae30\uc220 \ubc31\uc11c\ub294 \uc774\uacf3\uc5d0\uc11c \ud655\uc778\ud560<\/a> <a href=\"https:\/\/www.iis.fraunhofer.de\/content\/dam\/iis\/de\/doc\/ame\/wp\/FraunhoferIIS_xHE-AAC_Whitepaper.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\uc218<\/a><a href=\"https:\/\/www.iis.fraunhofer.de\/content\/dam\/iis\/de\/doc\/ame\/wp\/FraunhoferIIS_xHE-AAC_Whitepaper.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"> \uc788\ub2e4<\/a>. \ud504\ub77c\uc6b4\ud638\ud37c\ub294 \uc554\uc2a4\ud14c\ub974\ub2f4 IBC\uc5d0\uc11c xHE-AAC \ubc0f MPEG-D DRC\ub97c \uae30\ubcf8\uc801\uc73c\ub85c \uc548\ub4dc\ub85c\uc774\ub4dc \ud30c\uc774 \ud734\ub300\ud3f0 \ubc0f \uc560\ud50c TV \uc2a4\ud2b8\ub9ac\ubc0d \uc571\uc744 \uc774\uc6a9\ud558\uc5ec \uc2dc\uc5f0\ud560 \uc608\uc815\uc774\ub2e4. <a href=\"https:\/\/www.iis.fraunhofer.de\/en\/muv\/2018\/ibc-2018.html\" target=\"_blank\" rel=\"noopener noreferrer\">\ub354 \uc790\uc138\ud55c \uc815\ubcf4\ub294 \uc774\uacf3\uc5d0\uc11c \ud655\uc778 \uac00\ub2a5\ud558\ub2e4<\/a>.<\/p>\n<p>xHE-AAC\ub294 MPEG AAC \ucf54\ub371 \uc81c\ud488\uad70\uc758 \ucd5c\uc2e0 \ubc84\uc804\uc774\uba70, DASH\/HLS\ube44\ud2b8\uc728 \ubc94\uc704\ub97c \ud3ec\ud568\ud558\uc5ec \ucf54\ub371\uc758 \uc0ac\uc6a9 \uac00\ub2a5 \uc2a4\ud14c\ub808\uc624 \ube44\ud2b8\uc728 \ubc94\uc704\ub97c 12 kbit\/s (\uc2a4\ud14c\ub808\uc624)\uc5d0\uc11c 500 kbit\/s \ub610\ub294 \uadf8 \uc774\uc0c1\uc73c\ub85c \ud655\uc7a5\ud55c\ub2e4. \uadfc\ubcf8\uc801\uc73c\ub85c \uc801\uc751\ud615 \uc2a4\ud2b8\ub9ac\ubc0d\uc744 \uc704\ud574 \uc124\uacc4\ub41c xHE-AAC\ub294 \ubaa8\ub4e0 \ube44\ud2b8\uc728 \ubc94\uc704 \ubc0f \ud488\uc9c8 \ub2e8\uacc4\uc5d0\uc11c \ubd80\ub4dc\ub7fd\uac8c \uc804\ud658\uc774 \uac00\ub2a5\ud55c \uc720\uc77c\ud55c \ucf54\ub371\uc774\uba70, \uc774\uc804\uc758 HE-AAC\uc5d0 \ube44\ud558\uc5ec \ud544\uc694 \uc624\ub514\uc624 \ube44\ud2b8\uc728\uc744 50%\uae4c\uc9c0 \uac10\uc18c\uc2dc\ud0a8\ub2e4. \uc774\ub97c \ud1b5\ud558\uc5ec \uc808\uc57d\ub41c \uc624\ub514\uc624 \ub300\uc5ed\ud3ed\uc740 \ube44\ub514\uc624 \ud654\uc9c8 \ud5a5\uc0c1\uc5d0 \uc0ac\uc6a9\ub420 \uc218 \uc788\ub2e4.<\/p>\n<p>xHE-AAC\uc758 \uace0\uae09\uae30\ub2a5\uc744 \uc774\uc6a9\ud560 \uc2dc \uc804 \uc138\uacc4\uc758 \ube44\ub514\uc624 \ubc0f \uc624\ub514\uc624 \uc2a4\ud2b8\ub9ac\ubc0d \uc11c\ube44\uc2a4 \uacf5\uae09\uc790\ub4e4\uc740 \uc18c\ube44\uc790\ub4e4\uc774 \ub354\uc6b1 \ub354 \uc548\uc815\uc801\uc774\uace0 \ud5a5\uc0c1\ub41c \uacbd\ud5d8\uc744 \ud560 \uc218 \uc788\ub294 \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\uac8c \ub41c\ub2e4. \ucf54\ub371\uc740 \uc548\uc815\ub41c \ub124\ud2b8\uc6cc\ud06c \uc5f0\uacb0\uc744 \ud1b5\ud558\uc5ec \uace0\uac1d\uc5d0\uac8c \ud22c\uba85\ud55c \ud488\uc9c8\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\uc73c\uba70, \ub610\ud55c \uc774\ub3d9\uc911\u00a0 \ud63c\uc7a1\ud55c \ub124\ud2b8\uc6cc\ud06c\uc758 \ube44\ud2b8\uc728\ub85c\ub3c4 \uc6d0\ud65c\ud55c \uc804\ud658\uc774 \uac00\ub2a5\ud558\ub2e4. \uc774\ub294 \uc2e0\ud765 \uc2dc\uc7a5\uacfc \uac19\uc774 \uc5ec\uc804\ud788 \uc18c\ube44\uc790\uac00 2G \ub610\ub294 3G \uc5f0\uacb0\uc5d0 \uc758\uc874\ud558\ub294 \uacf3\uc758 \uc2a4\ud2b8\ub9ac\ubc0d \uc11c\ube44\uc2a4 \uacf5\uae09\uc790\ub4e4\uc5d0\uac8c \uad49\uc7a5\ud788 \uc911\uc694\ud55c \uc694\uc18c\uc774\ub2e4.<\/p>\n<p>\ub610\ud55c MPEG-D DRC \u2013\uc74c\ub7c9 \ubc0f \ub3d9\uc801 \ubc94\uc704 \ucee8\ud2b8\ub864 (Loudness and Dynamic Range Control)- \uc740 xHE-AAC\uc5d0 \ud544\uc218 \uc74c\ub7c9 \ucee8\ud2b8\ub864\uc744 \uc81c\uacf5\ud558\uc5ec \uc77c\uc815\ud55c \ubcfc\ub968\uc73c\ub85c \ucf58\ud150\uce20\ub97c \uc7ac\uc0dd\ud558\uba70, \ubaa8\ub4e0 \ud50c\ub7ab\ud3fc \ubc0f \ud658\uacbd\uc5d0\uc11c\uc758 \uccad\ucde8\uac00 \uac00\ub2a5\ud558\ub3c4\ub85d \ub3d9\uc801 \ubc94\uc704 \ucee8\ud2b8\ub864 \ud504\ub85c\uc138\uc2f1\uc744 \uc81c\uacf5\ud558\uc5ec \ucd5c\uc0c1\uc758 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc5d0 \uae30\uc5ec\ud55c\ub2e4.<\/p>\n<p>xHE-AAC \ubc0f MPEG-D DRC\ub294 \ucd94\uac00\ube44\uc6a9 \uc5c6\uc774 AAC \ud2b9\ud5c8 \ub77c\uc774\uc13c\uc2a4 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ud3ec\ud568\ub41c\ub2e4.<\/p>\n<p>\uc548\ub4dc\ub85c\uc774\ub4dc \ud30c\uc774\uc758 xHE-AAC\uc5d0 \ub300\ud55c \ub354 \uc790\uc138\ud55c \uc815\ubcf4\ub294<a href=\"https:\/\/source.android.com\/compatibility\/android-cdd#5_1_media_codecs\" target=\"_blank\" rel=\"noopener noreferrer\">\uc774\uacf3<\/a>\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624.<\/p>\n<p>Header image: The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc774\ub2ec \ucd08, \uad6c\uae00\uc740 \ub2f9\uc0ac \ubaa8\ubc14\uc77c \uc6b4\uc601\uccb4\uc81c\uc758 \ucd5c\uc2e0 \ubc84\uc804\uc744 \ud3ec\ud568\ud55c \ucd5c\ucd08\uc758 \uae30\uae30 \ubc0f 9\ubc88\uc9f8 \uc548\ub4dc\ub85c\uc774\ub4dc\uc778 \u201ePie\u201c(\ud30c\uc774)\uc758 \uc77c\ubc18 \uac00\uc6a9\uc131\uc744 \ubc1c\ud45c\ud588\ub2e4. \ud504\ub77c\uc6b4\ud638\ud37c IIS\uac00 \uc8fc\ub3c4\uc801\uc73c\ub85c \uac1c\ubc1c\ud55c \ud655\uc7a5 \uace0\ud6a8\uc728 AAC (xHE-AAC) \uc624\ub514\uc624 \ucf54\ub371 \ubc0f MPEG-D DRC \uc74c\ub7c9 \ubc0f \ub3d9\uc801 \ubc94\uc704 \uba54\ud0c0\ub370\uc774\ud130\ub294 \uc6b4\uc601\uccb4\uc81c\uc758 \ud544\uc218 \uc694\uc18c\uc774\uba70, \uc774\ub97c \ud1b5\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \ud30c\uc774\uc758 <a href=\"https:\/\/source.android.com\/compatibility\/android-cdd#5_1_media_codecs\" target=\"_blank\" rel=\"noopener noreferrer\">\uc624\ub514\uc624 \uc7ac\uc0dd \uad00\ub828<\/a> \ubb38\uc790\uc5f4\uc774 \ud06c\uac8c \uc5c5\uadf8\ub808\uc774\ub4dc\ub418\uc5c8\ub2e4. \uc548\ub4dc\ub85c\uc774\ub4dc \ud30c\uc774\uc5d0\uc11c \uae30\ubcf8\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 xHE-AAC \uad6c\ud604\uc740 \ud504\ub77c\uc6b4\ud638\ud37c IIS\uac00 \uc81c\uacf5\ud558\uba70 <a href=\"https:\/\/android.googlesource.com\/platform\/external\/aac\/+\/master\" target=\"_blank\" rel=\"noopener noreferrer\">\uc548\ub4dc\ub85c\uc774\ub4dc\uc6a9 FDK2 AAC \ucf54\ub371 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 \uc77c\ubd80\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4<\/a>.<\/p>\n","protected":false},"author":2,"featured_media":2278,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[420,413],"class_list":["post-2851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-technologies-ko","tag-mpeg-d-drc-ko","tag-xhe-aac-ko"],"_links":{"self":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts\/2851"}],"collection":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/comments?post=2851"}],"version-history":[{"count":3,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts\/2851\/revisions"}],"predecessor-version":[{"id":5220,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts\/2851\/revisions\/5220"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/media\/2278"}],"wp:attachment":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/media?parent=2851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/categories?post=2851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/tags?post=2851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}