{"id":6265,"date":"2021-01-11T17:05:26","date_gmt":"2021-01-11T15:05:26","guid":{"rendered":"https:\/\/websites.fraunhofer.de\/audioblog\/?p=6265"},"modified":"2021-01-12T12:00:27","modified_gmt":"2021-01-12T10:00:27","slug":"new-xheaac-webpage","status":"publish","type":"post","link":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/new-xheaac-webpage","title":{"rendered":"xHE-AAC\uc758 \ub2e4\uc591\ud55c \ud3b8\uc758 \uae30\ub2a5\uc744 \uc18c\uac1c\ud558\ub294 \ub370\ubaa8 \ud398\uc774\uc9c0 \ub7f0\uce6d"},"content":{"rendered":"<p><strong><a href=\"https:\/\/www2.iis.fraunhofer.de\/AAC\/xhe-aac-compare-tab.html\" target=\"_blank\" rel=\"noopener noreferrer\">\ud504\ub77c\uc6b4\ud638\ud37c\ub294 \uc790\uc0ac \ud648\ud398\uc774\uc9c0\uc5d0 xHE-AAC \ucf54\ub371\uc774 \uc81c\uacf5\ud558\ub294 \uac01\uc885 \ud601\uc2e0\uc801\uc778 \ud3b8\uc758 \uae30\ub2a5\uc744 \uc18c\uac1c\ud558\ub294 \ub370\ubaa8 \ud398\uc774\uc9c0\ub97c \uc120\ubcf4\uc600\uc2b5\ub2c8\ub2e4<\/a>. 4\uc138\ub300 AAC \ucf54\ub371\uc778 xHE-AAC \ucf54\ub371\uc740 \ub0ae\uc740 \ube44\ud2b8\uc728\uc5d0\uc11c\ub3c4 \ucd5c\uc0c1\uc758 \uc74c\uc9c8\uc744 \uad6c\ud604\ud558\uace0 12- 500 kb\/s \ube44\ud2b8\uc728 \ubc94\uc704\uc5d0\uc11c \ub04a\uae40 \uc5c6\ub294 \uc2a4\ud2b8\ub9ac\ubc0d\uc744 \uc9c0\uc6d0\ud558\uba70, \uae30\uc900\uc74c\ub7c9(mandatory loudness) \ubc0f \ub3d9\uc801\ubc94\uc704 \uc81c\uc5b4(dynamic range control) \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/strong><\/p>\n<p><!--more--><\/p>\n<p>\uc774\ubc88 \ub370\ubaa8 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 xHE-AAC\uc640 \uae30\uc874 HE-AAC \ucf54\ub371\uc73c\ub85c \uc778\ucf54\ub529\/\ub514\ucf54\ub529\ud55c \uc601\ud654 \ubc0f \uc74c\uc545 \uc0d8\ud50c\ub4e4\uc744 \uc9c1\uc811 \ub4e4\uc5b4\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc601\ud654 \uc0d8\ud50c \uc601\uc0c1\uc740 \ub137\ud50c\ub9ad\uc2a4 \uc601\ud654 \u2018\uba54\ub9ac\ub514\uc5b8(Meridian)\u2019\uc758 \ud55c \uc7a5\uba74\uc73c\ub85c \ub0ae\uc740 \ube44\ud2b8\uc728\uc5d0\uc11c HE-AAC \uc801\uc6a9 \uc2dc \ub290\uaef4\uc9c0\ub294 \uac70\uce5c \ub300\uc0ac(speech)\uc74c\uc774 xHE-AAC \uc801\uc6a9 \uc2dc \ud604\uc800\ud558\uac8c \uac1c\uc120\ub418\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. xHE-AAC\ub294 \uc778\ucf54\ub529 \ud488\uc9c8\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ubcc4\ub3c4\uc758 \uc74c\uc131 \ucf54\ub371\uc744 \ud3ec\ud568\ud558\uace0 \uc788\uc5b4 \uc74c\uc131\uc5d0\uc11c \ub4e4\ub9ac\ub294 \ucf54\ub529 \uc544\ud2f0\ud329\ud2b8(coding artifact)\ub97c \ud06c\uac8c \uac10\uc18c\uc2dc\ucf1c\uc90d\ub2c8\ub2e4. \uc774 \uc678\uc5d0\ub3c4 \uc601\uc0c1 \uc804\ubc18\ubd80\uc5d0 \uc11c\ub958\ub97c \ub118\uae30\ub294 \uc18c\ub9ac\ub098 \ud6c4\ubc18\ubd80\uc758 \ube57\uc18c\ub9ac\uc5d0\uc11c\ub294 xHE-AAC\uac00 \uc9c0\uc6d0\ud558\ub294 \ub113\uc740 \uc624\ub514\uc624 \ub300\uc5ed\ud3ed\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc601\uc0c1\ubfd0 \uc544\ub2c8\ub77c \uc74c\uc545\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\uc785\ub2c8\ub2e4. \ub370\ubaa8 \ud398\uc774\uc9c0\uc0c1\uc758 \uc0d8\ud50c \uc74c\uc6d0 \uc911 \u2018\ud398\uc5b4\uc6f0(Farewell)\u2019\uc758 \ud53c\uc544\ub178 \uc5f0\uc8fc \ubd80\ubd84\uc5d0\uc11c\ub294 HE-AAC\uac00 \ube44\ud2b8\ub97c \uc801\uc808\ud558\uac8c \ud560\ub2f9\ud558\uc9c0 \ubabb\ud560 \ub54c \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \uc6cc\ube14\ub9c1 \uc544\ud2f0\ud329\ud2b8(warbling artifact) \ud604\uc0c1\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \u2018\uc6cc\ud0b9(Walking)\u2019 \uc74c\uc6d0\uc5d0\uc11c\ub294 \uc2a4\ud14c\ub808\uc624 \uc774\ubbf8\uc9c0\uac00 \ud5a5\uc0c1\ub41c \uac83\uc744 \ub290\ub084 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \u2018\ub808\uc778(Rain)\u2019\uc758 \uacbd\uc6b0, HE-AAC \uc801\uc6a9 \uc2dc \uae30\ud0c0 \uc18c\ub9ac\uc758 \uc6cc\ube14\ub9c1 \ud604\uc0c1, \ubd80\uc815\ud655\ud55c \uc2a4\ud14c\ub808\uc624 \uc774\ubbf8\uc9c0, \ucf54\ub371\uc73c\ub85c \uc778\ud55c \uae30\ud0c0\uc758 \uc794\ud5a5 \ub4f1\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n<p>\ucee8\ud150\uce20 \ubc30\ud3ec\uc0ac\ub4e4\uc740 HE-AAC\ubcf4\ub2e4 \ub354 \ub0ae\uc740 \ube44\ud2b8\uc728\uc5d0\uc11c xHE-AAC\ub97c \uc0ac\uc6a9\ud558\uba70 \uc74c\uc9c8\uc744 \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uc678\uc5d0\ub3c4 xHE-AAC\ub294 \uc74c\ub7c9 \ubc0f \ub3d9\uc801\ubc94\uc704 \uc81c\uc5b4 \uae30\ub2a5\uc744 \uc790\ub791\ud569\ub2c8\ub2e4. \uc74c\ub7c9 \uc81c\uc5b4 \uae30\ub2a5\uc740 \uc77c\uc815\ud55c \uc74c\ub7c9 \uc218\uc900\uc5d0\uc11c \ucee8\ud150\uce20 \uc7ac\uc0dd\uc744 \uc9c0\uc6d0\ud558\uc5ec \uc7a6\uc740 \uc74c\ub7c9 \ubcc0\ud654\ub97c \ubc29\uc9c0\ud569\ub2c8\ub2e4. \ub3d9\uc801\ubc94\uc704 \uc81c\uc5b4 \uae30\ub2a5\uc740 \ucee8\ud150\uce20\uc758 \ub3d9\uc801\ubc94\uc704\ub97c \uc81c\uc5b4\ud558\uc5ec \uccad\ucde8\uac00 \uc5b4\ub824\uc6b4 \uc18c\uc74c \ud658\uacbd\uc5d0\uc11c\ub3c4 \uc120\uba85\ud55c \uc0ac\uc6b4\ub4dc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub370\ubaa8 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 xHE-AAC \ub3d9\uc801\ubc94\uc704 \uc81c\uc5b4 \uae30\ub2a5 \uc801\uc6a9 \uc804\uacfc \ud6c4\ub97c \ube44\uad50\ud558\ub294 \uc0d8\ud50c \uc601\uc0c1\uc744 \ucc3e\uc544\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucc28\ud3d0\uc74c(masking noise) \uc7ac\uc0dd \uc2dc, \ube44\ud589\uae30, \uc57c\uc678, \ubd90\ube44\ub294 \uc7a5\uc18c \ub4f1 \uc18c\uc74c \ud658\uacbd\uc5d0\uc11c \uc74c\uc131 \uba85\ub8cc\ub3c4\ub97c \ub192\uc5ec\uc8fc\ub294 \ub3d9\uc801\ubc94\uc704 \uc81c\uc5b4 \uae30\ub2a5\uc744 \uc9c1\uc811 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub370\ubaa8 \ud398\uc774\uc9c0\uc758 \ub610 \ub2e4\ub978 \uc0d8\ud50c \uc601\uc0c1\uc5d0\uc11c\ub294 xHE-AAC\uac00 2\ucd08 \ub2e8\uc704\ub85c 24-128 kb\/s \ubc94\uc704\uc5d0\uc11c \ube44\ud2b8\uc728\uc744 \uc804\ud658\ud558\uc5ec \ubd80\ub4dc\ub7ec\uc6b4 \uc2a4\ud2b8\ub9ac\ubc0d\uc744 \uc9c0\uc6d0\ud558\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac19\uc740 \uae30\ub2a5 \ub355\ubd84\uc5d0 \ub124\ud2b8\uc6cc\ud06c \uc0c1\ud0dc\uac00 \ubd88\uc548\uc815\ud574\ub3c4 \ub04a\uae40 \uc5c6\ub294 \uc7ac\uc0dd\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n<p>\ub370\ubaa8 \ud398\uc774\uc9c0\uc0c1\uc758 HE-AAC \uc74c\uc6d0 \uc0d8\ud50c\ub4e4\uc740 \ud504\ub77c\uc6b4\ud638\ud37c\uc758 \ud45c\uc900 HE-AAC \uc778\ucf54\ub354\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac01 \ube44\ud2b8\uc728\uc5d0\uc11c \uac00\uc7a5 \uc774\uc0c1\uc801\uc778 \ud488\uc9c8\ub85c \uc81c\uc791\ub418\uc5c8\uc73c\uba70, \ubcc4\ub3c4\ub85c \uc74c\uc9c8\uc744 \uc800\ud558\uc2dc\ud0a4\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>xHE-AAC <\/strong><strong>\uc18c\uac1c<\/strong><\/p>\n<p>xHE-AAC\ub294 \uac00\uc7a5 \ucd5c\uadfc\uc5d0 \ucd9c\uc2dc\ub41c MPEG AAC \uacc4\uc5f4 \uc624\ub514\uc624 \ucf54\ub371\uc785\ub2c8\ub2e4. \ud504\ub77c\uc6b4\ud638\ud37c\ub294 xHE-AAC \ubc0f MPEG-D DRC \ud45c\uc900 \uac1c\ubc1c\uc5d0 \uc8fc\ub3c4\uc801\uc778 \uc5ed\ud560\uc744 \ud588\uc2b5\ub2c8\ub2e4. xHE-AAC\ub294 \ucd5c\uc2e0 \uc560\ud50c, \uc548\ub4dc\ub85c\uc774\ub4dc \ubc0f \uc544\ub9c8\uc874 \uc6b4\uc601\uccb4\uc81c \ubc0f \uc81c\ud488\uc5d0 \uae30\ubcf8\uc73c\ub85c \ud0d1\uc7ac\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc804\ubb38\uac00\uc6a9 xHE-AAC \uc778\ucf54\ub354 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 <a href=\"https:\/\/www.iis.fraunhofer.de\/ko\/ff\/amm\/broadcast-streaming\/xheaac.html\" target=\"_blank\" rel=\"noopener noreferrer\">\ud504\ub77c\uc6b4\ud638\ud37c IIS\uc5d0\uc11c \uc9c1\uc811<\/a> \ub610\ub294 \uc2a4\ud2b8\ub9ac\ubc0d \uc7a5\ube44 \ud611\ub825\uc0ac\uc5d0\uc11c \uc81c\uacf5\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. xHE-AAC \ubc0f MPEG-D DRC \ud2b9\ud5c8\ub294 AAC \ud2b9\ud5c8 \ub77c\uc774\uc120\uc2f1 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ud3ec\ud568\ub418\uc5b4 \uc788\uc73c\uba70, \ucd94\uac00 \ube44\uc6a9 \uc5c6\uc774 VIA Licensing\uc5d0\uc11c \uc6b4\uc601\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>Header image: \u00a9 Gorodenkoff &#8211; stock.adobe.com \/ Fraunhofer IIS<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud504\ub77c\uc6b4\ud638\ud37c\ub294 \uc790\uc0ac \ud648\ud398\uc774\uc9c0\uc5d0 xHE-AAC \ucf54\ub371\uc774 \uc81c\uacf5\ud558\ub294 \uac01\uc885 \ud601\uc2e0\uc801\uc778 \ud3b8\uc758 \uae30\ub2a5\uc744 \uc18c\uac1c\ud558\ub294 \ub370\ubaa8 \ud398\uc774\uc9c0\ub97c \uc120\ubcf4\uc600\uc2b5\ub2c8\ub2e4. 4\uc138\ub300 AAC \ucf54\ub371\uc778 xHE-AAC \ucf54\ub371\uc740 \ub0ae\uc740 \ube44\ud2b8\uc728\uc5d0\uc11c\ub3c4 \ucd5c\uc0c1\uc758 \uc74c\uc9c8\uc744 \uad6c\ud604\ud558\uace0 12- 500 kb\/s \ube44\ud2b8\uc728 \ubc94\uc704\uc5d0\uc11c \ub04a\uae40 \uc5c6\ub294 \uc2a4\ud2b8\ub9ac\ubc0d\uc744 \uc9c0\uc6d0\ud558\uba70, \uae30\uc900\uc74c\ub7c9(mandatory loudness) \ubc0f \ub3d9\uc801\ubc94\uc704 \uc81c\uc5b4(dynamic range control) \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"author":14,"featured_media":6453,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[413],"class_list":["post-6265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-technologies-ko","tag-xhe-aac-ko"],"_links":{"self":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts\/6265"}],"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\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/comments?post=6265"}],"version-history":[{"count":4,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts\/6265\/revisions"}],"predecessor-version":[{"id":6457,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/posts\/6265\/revisions\/6457"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/media\/6453"}],"wp:attachment":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/media?parent=6265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/categories?post=6265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/ko\/wp-json\/wp\/v2\/tags?post=6265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}