{"id":2956,"date":"2018-08-28T09:00:37","date_gmt":"2018-08-28T07:00:37","guid":{"rendered":"https:\/\/websites.fraunhofer.de\/iis_audioblog?p=2956"},"modified":"2020-01-03T17:27:33","modified_gmt":"2020-01-03T15:27:33","slug":"xheaac-mpeg-d-drc-android-pie","status":"publish","type":"post","link":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/xheaac-mpeg-d-drc-android-pie","title":{"rendered":"Android Pie \u8bbe\u5907\u539f\u751f\u652f\u6301xHE-AAC\u548cMPEG-D DRC\u6280\u672f"},"content":{"rendered":"<p>\u670d\u52a1\u63d0\u4f9b\u5546\u548c\u5e94\u7528\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u8054\u7edcFraunhofer\u4ee5\u83b7\u5f97\u4e13\u4e1a\u7684xHE-AAC\u7f16\u7801\u5668\u8f6f\u4ef6\u5e76\u901a\u8fc7\u5b83\u5b9e\u73b0\u5185\u5bb9\u7684\u5206\u53d1\uff0c\u4e5f\u53ef\u901a\u8fc7Fraunhofer\u6d41\u5a92\u4f53\u8bbe\u5907\u5408\u4f5c\u4f19\u4f34: Modulation Index\u548cTelos\u5b9e\u73b0\u4e0a\u8ff0\u9700\u6c42\u3002xHE-AAC\u548cMPEG-D DRC\u7684<a href=\"https:\/\/www.iis.fraunhofer.de\/content\/dam\/iis\/de\/doc\/ame\/wp\/FraunhoferIIS_xHE-AAC_Whitepaper.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\u6280\u672f\u767d\u76ae\u4e66<\/a>\u4e2d\u6709\u7740\u66f4\u4e3a\u8be6\u5c3d\u7684\u6280\u672f\u7528\u4f8b\u548c\u7ec6\u8282\u4ecb\u7ecd\u3002\u5728\u4eca\u5e74\u7684IBC\u5c55\u4f1a\u4e0a\uff0cFraunhofer\u5c06\u901a\u8fc7Android Pie\u624b\u673a\u548cApple TV\u6d41\u5a92\u4f53\u5e94\u7528\u5c55\u793axHE-AAC \u548cMPEG-D DRC\u6280\u672f\u3002\u66f4\u591a\u5c55\u4f1a\u76f8\u5173\u4fe1\u606f\uff0c<a href=\"https:\/\/www.iis.fraunhofer.de\/en\/muv\/2018\/ibc-2018.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u6b22\u8fce\u70b9\u51fb<\/a>\u3002<\/p>\n<p>xHE-AAC\u662fMPEG AAC\u97f3\u9891\u7f16\u89e3\u7801\u5668\u7684\u6700\u65b0\u7248\u672c\uff0c\u5b83\u4f7f\u5f97AAC\u7cfb\u5217\u7f16\u89e3\u7801\u5668\u7684\u7acb\u4f53\u58f0\u4f20\u8f93\u7801\u7387\u548cDASH\/HLS\u6bd4\u7279\u7387\u9002\u7528\u8303\u56f4\u5f97\u5230\u8fdb\u4e00\u6b65\u62d3\u5c55\uff0c\u4ece\u4f4e\u81f312 kbit\/s\uff08\u7acb\u4f53\u58f0\uff09\u76f4\u81f3500 kbit \/ s\u751a\u81f3\u66f4\u9ad8\u3002xHE-AAC\u4e3a\u81ea\u9002\u5e94\u6d41\u5a92\u4f53\u91cf\u8eab\u5b9a\u5236\uff0c\u662f\u552f\u4e00\u80fd\u591f\u5b9e\u73b0\u5168\u6bd4\u7279\u7387\u8303\u56f4\u65e0\u7f1d\u5207\u6362\u7684\u7f16\u89e3\u7801\u5668\u3002\u76f8\u8f83\u4e8eHE-AAC\uff0cxHE-AAC\u964d\u4f4e\u4e8650%\u7684\u97f3\u9891\u6bd4\u7279\u7387\u9700\u6c42\uff0c\u7531\u6b64\u8282\u7701\u7684\u97f3\u9891\u5e26\u5bbd\u80fd\u591f\u7528\u4e8e\u63d0\u5347\u89c6\u9891\u8d28\u91cf\u3002<\/p>\n<p>xHE-AAC\u4e3a\u5168\u7403\u7684\u89c6\u97f3\u9891\u6d41\u5a92\u4f53\u63d0\u4f9b\u5546\u5e26\u6765\u4f18\u79c0\u4e14\u53ef\u9760\u7684\u7528\u6237\u4f53\u9a8c\u3002\u5b83\u53ef\u4ee5\u5728\u826f\u597d\u7684\u7f51\u7edc\u6761\u4ef6\u4e0b\u4e3a\u5ba2\u6237\u63d0\u4f9b\u900f\u660e\u7684\u97f3\u9891\u8d28\u91cf\uff0c\u4e5f\u53ef\u4ee5\u5728\u7f51\u7edc\u62e5\u5835\u65f6\u65e0\u7f1d\u5730\u5207\u6362\u6bd4\u7279\u7387\u4ee5\u63d0\u4f9b\u6301\u7eed\u4e0d\u95f4\u65ad\u7684\u64ad\u653e\u3002\u8fd9\u9879\u6280\u672f\u66f4\u9002\u7528\u4e8e\u53d72G\u62163G\u7f51\u7edc\u73af\u5883\u6240\u5c40\u9650\u7684\u6d41\u5a92\u4f53\u63d0\u4f9b\u5546\u3002<\/p>\n<p>\u6b64\u5916\uff0cMPEG-D\u52a8\u6001\u8303\u56f4\u63a7\u5236\u6280\u672f\u4e3axHE-AAC\u5e26\u6765\u5f3a\u5236\u6027\u54cd\u5ea6\u63a7\u5236\uff0c\u5728\u786e\u4fdd\u8fd8\u653e\u5185\u5bb9\u97f3\u91cf\u4e00\u81f4\u6027\u7684\u540c\u65f6\u4e3a\u8fd8\u653e\u8bbe\u5907\u548c\u73af\u5883\u5e26\u6765\u6700\u4f73\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<p>xHE-AAC\u548c MPEG-D\u52a8\u6001\u8303\u56f4\u63a7\u5236\u6280\u672f\u5df2\u5305\u542b\u5728VIA Licensing\u8d1f\u8d23\u7684AAC\u4e13\u5229\u6388\u6743\u8bb8\u53ef\u9879\u76ee\u5f53\u4e2d\uff0c\u5df2\u83b7\u4e13\u5229\u6388\u6743\u7684\u516c\u53f8\u65e0\u9700\u4efb\u4f55\u989d\u5916\u6210\u672c\u5373\u53ef\u4f7f\u7528\u8be5\u6280\u672f\u3002<\/p>\n<p>\u66f4\u591a\u5173\u4e8eAndroid Pie\u4e0a\u7684 xHE-AAC\u6280\u672f\uff0c<a href=\"https:\/\/source.android.com\/compatibility\/android-cdd#5_1_media_codecs\" target=\"_blank\" rel=\"noopener noreferrer\">\u6b22\u8fce\u70b9\u51fb<\/a>\u3002<\/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>\u672c\u6708\u521d\uff0cGoogle\u53d1\u5e03\u4e86Android 9 Pie\u64cd\u4f5c\u7cfb\u7edf\u53ca\u9996\u4e2a\u652f\u6301\u8be5\u7cfb\u7edf\u7684\u79fb\u52a8\u8bbe\u5907\u3002Android Pie\u5728<a href=\"https:\/\/source.android.com\/compatibility\/android-cdd#5_1_media_codecs\" target=\"_blank\" rel=\"noopener noreferrer\">\u97f3\u9891\u8fd8\u653e<\/a>\u65b9\u9762\u6709\u7740\u91cd\u5927\u521b\u65b0\u7a81\u7834: \u7531Fraunhofer IIS\u4e3b\u5bfc\u5f00\u53d1\u7684xHE-AAC\u97f3\u9891\u7f16\u89e3\u7801\u5668\u548cMPEG-D\u52a8\u6001\u8303\u56f4\u63a7\u5236\u6280\u672f(DRC)\u5df2\u539f\u751f\u5185\u7f6e\u4e8eAndroid Pie\u7cfb\u7edf\u4e4b\u4e2d\u3002xHE-AAC\u6280\u672f\u7531Fraunhofer IIS\u63d0\u4f9b\uff0c\u5e76\u5305\u542b\u5728Android\u7684<a href=\"https:\/\/android.googlesource.com\/platform\/external\/aac\/+\/master\" target=\"_blank\" rel=\"noopener noreferrer\">FDK2 AAC\u7f16\u89e3\u7801\u5e93<\/a>\u4e2d\u3002<\/p>\n","protected":false},"author":2,"featured_media":2456,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[154],"tags":[437,440],"class_list":["post-2956","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-technologies-cn","tag-mpeg-d-drc-cn","tag-xhe-aac-cn"],"_links":{"self":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts\/2956"}],"collection":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/comments?post=2956"}],"version-history":[{"count":3,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts\/2956\/revisions"}],"predecessor-version":[{"id":5219,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts\/2956\/revisions\/5219"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/media\/2456"}],"wp:attachment":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/media?parent=2956"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/categories?post=2956"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/tags?post=2956"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}