{"id":2980,"date":"2017-09-27T08:00:27","date_gmt":"2017-09-27T06:00:27","guid":{"rendered":"https:\/\/websites.fraunhofer.de\/iis_audioblog?p=2980"},"modified":"2019-04-17T15:02:17","modified_gmt":"2019-04-17T13:02:17","slug":"pt-expo-2017","status":"publish","type":"post","link":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/pt-expo-2017","title":{"rendered":"Fraunhofer IIS\u521b\u65b0\u6280\u672f\u5f15\u9886\u624b\u673a\u8bed\u97f3\u901a\u8bdd\u548c\u79fb\u52a8\u5a31\u4e50\u97f3\u9891\u65b0\u98ce\u5411"},"content":{"rendered":"<p>Fraunhofer IIS\u57282017\u5e74\u4e2d\u56fd\u56fd\u9645\u4fe1\u606f\u901a\u4fe1\u5c55\u89c8\u4f1a\uff08PT\/EXPO\uff09\u4e0a\u5c55\u793a\u4e86\u4e00\u7cfb\u5217\u9876\u5c16\u79fb\u52a8\u97f3\u9891\u6280\u672f\uff0c\u5176\u4e2d\u5305\u62ec\uff1a\u4e3a\u624b\u673a\u7528\u6237\u5e26\u6765\u5168\u9ad8\u6e05\u8bed\u97f3\u901a\u8bdd\u8d28\u91cf\u7684\u589e\u5f3a\u578b\u8bed\u97f3\u7f16\u89e3\u7801\u5668<a href=\"https:\/\/www.iis.fraunhofer.de\/zh\/ff\/amm\/prod\/kommunikation\/komm\/evs.html\" target=\"_blank\" rel=\"noopener noreferrer\">EVS<\/a>\u6280\u672f\uff0c\u9996\u6b21\u5728\u4e2d\u56fd\u4eae\u76f8\u5e76\u4e3a\u6570\u5b57\u5e7f\u64ad\u548c\u79fb\u52a8\u6d41\u5a92\u4f53\u5e94\u7528\u5e26\u6765\u5353\u8d8a\u97f3\u9891\u89e3\u51b3\u65b9\u6848\u7684<a href=\"https:\/\/www.iis.fraunhofer.de\/zh\/ff\/amm\/prod\/digirundfunk\/digirundf\/xheaac.html\" target=\"_blank\" rel=\"noopener noreferrer\">xHE-AAC<\/a>\u6280\u672f\uff0c\u4e3a\u79fb\u52a8VR\u8bbe\u5907\u5e26\u6765\u6700\u4f73\u6c89\u6d78\u5f0f\u58f0\u97f3\u4f53\u9a8c\u7684<a href=\"https:\/\/www.iis.fraunhofer.de\/zh\/ff\/amm\/prod\/audiocodec\/audiocodecs\/cingo.html\" target=\"_blank\" rel=\"noopener noreferrer\">Fraunhofer Cingo<\/a>\u6280\u672f\u548c\u97f3\u9891\u540e\u671f\u5236\u4f5c\u63d2\u4ef6Cingo Composer\uff0c\u4ee5\u53ca\u6210\u529f\u5728\u5e7f\u64ad\u7535\u89c6\u9886\u57df\u5546\u7528\u5e76\u81f4\u529b\u4e8e\u4e3a\u624b\u673a\u79fb\u52a8\u97f3\u9891\u6253\u9020\u771f\u6b63\u6c89\u6d78\u5f0f\u97f3\u9891\u6548\u679c\u7684<a href=\"https:\/\/www.iis.fraunhofer.de\/zh\/ff\/amm\/prod\/digirundfunk\/digirundf\/tvaudio.html\" target=\"_blank\" rel=\"noopener noreferrer\">MPEG-H<\/a>\u97f3\u9891\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u5f53\u524d\uff0c\u4ee55G\u3001\u5927\u6570\u636e\u3001\u4e91\u8ba1\u7b97\u3001\u79fb\u52a8\u4e92\u8054\u7f51\u3001\u865a\u62df\u73b0\u5b9e\u4e3a\u4ee3\u8868\u7684\u65b0\u4e00\u4ee3\u4fe1\u606f\u901a\u4fe1\u6280\u672f\u4e0e\u4f20\u7edf\u4ea7\u4e1a\u7684\u6e17\u900f\u878d\u5408\u4e0d\u65ad\u6df1\u5316\uff0c\u65b0\u4e00\u8f6e\u79d1\u6280\u9769\u547d\u548c\u4ea7\u4e1a\u53d8\u9769\u5b55\u80b2\u5174\u8d77\u3002\u5728\u672c\u5c4aPT\/EXPO\u671f\u95f4\u5c55\u793a\u7684Fraunhofer IIS\u521b\u65b0\u6280\u672f\u80fd\u591f\u4e3a\u8bf8\u5982\u79fb\u52a8\u8fd0\u8425\u5546\u3001\u6d41\u5a92\u4f53\u670d\u52a1\u63d0\u4f9b\u5546\u3001\u624b\u673a\u7ec8\u7aef\u5236\u9020\u5382\u5546\u4ee5\u53ca\u79fb\u52a8\u5a31\u4e50\u5185\u5bb9\u521b\u4f5c\u56e2\u961f\u7b49\u901a\u4fe1\u4ea7\u4e1a\u94fe\u4e2d\u7684\u5404\u4e2a\u670d\u52a1\u63d0\u4f9b\u8005\u5e26\u6765\u6210\u672c\u6548\u76ca\u7684\u540c\u65f6\uff0c\u4e3a\u7528\u6237\u5e26\u6765\u524d\u6240\u672a\u6709\u7684\u5353\u8d8a\u79fb\u52a8\u97f3\u9891\u4f53\u9a8c\u3002<\/p>\n<p><strong>\u56fd\u5185\u5916\u8fd0\u8425\u5546\u7eb7\u7eb7\u770b\u51c6<\/strong><strong>EVS<\/strong><strong>\u6280\u672f\uff0c\u5176\u4e13\u5229\u7ec4\u5408\u6388\u6743\u8bb8\u53ef\u9996\u6b21\u53d1\u5e03<\/strong><\/p>\n<p>\u589e\u5f3a\u578b\u8bed\u97f3\u670d\u52a1 (EVS)\u662f\u4e0b\u4e00\u4ee33GPP VoLTE\u7f16\u89e3\u7801\u5668\uff0c\u5373AMR-WB\u7684\u5347\u7ea7\u7248\u3002EVS\u4e5f\u662f\u8d85\u5bbd\u9891VoLTE\/VoWiFi\u670d\u52a1\u4e2d\u552f\u4e00\u6307\u5b9a\u7684\u7f16\u89e3\u7801\u5668\uff0c\u5b83\u80fd\u591f\u4e3a\u7528\u6237\u5e26\u6765\u5168\u9ad8\u6e05\u8bed\u97f3\u901a\u8bdd\u8d28\u91cf\uff0c\u5e76\u80fd\u5ab2\u7f8e\u5f53\u4eca\u6570\u5b57\u5a92\u4f53\u670d\u52a1\u7684\u901a\u8bdd\u4fdd\u771f\u5ea6\uff0c\u914d\u5408EVS\u5148\u8fdb\u7684\u9c81\u68d2\u6027\u548c\u6297\u4e22\u5305\u529f\u80fd\uff0c\u697c\u5b87\u5ba4\u5185\u4fe1\u53f7\u8986\u76d6\u5f97\u5230\u4e86\u663e\u8457\u63d0\u5347\u3002\u7f8e\u56fdT-Mobile\uff0c\u65e5\u672cNTT DoCoMo\uff0c\u5fb7\u56fdVodafone Germany\uff0c\u5fb7\u56fdDeutsche Telekom\u5148\u540e\u4e3a\u5176\u7528\u6237\u5e26\u6765\u5177\u6709EVS\u6280\u672f\u7684VoLTE\u670d\u52a1\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u4f5c\u4e3a\u5168\u7403\u6700\u5927\u7684\u8fd0\u8425\u5546\uff0c\u4e2d\u56fd\u79fb\u52a8\u5df2\u5b8c\u6210\u4e86\u9488\u5bf9EVS\u6280\u672f\u7684\u4e00\u8f6e\u5b9e\u9a8c\u5ba4\u548c\u5916\u573a\u8bd5\u70b9\u6d4b\u8bd5\uff0c\u800c\u4e2d\u56fd\u79fb\u52a8\u7814\u7a76\u9662\u4e5f\u5df2\u5b8c\u6210\u6d4b\u8bd5\u89c4\u8303\u4f01\u6807\u5236\u5b9a\u5de5\u4f5c\uff0c\u5e76\u5728\u5176\u5b98\u65b9\u5fae\u4fe1\u4e0a\u53d1\u5e03\u4e86\u6d4b\u8bd5\u7ed3\u679c\uff0c\u8be6\u60c5\u53c2\u89c1 (https:\/\/mp.weixin.qq.com\/s?__biz=MjM5MTYxNDY2OQ==&amp;mid=2651822022&amp;idx=2&amp;sn=1f33758830fd5517f1e0df3d2179f6b1&amp;chksm=bd49e4648a3e6d728d352b8bb3b163158550c0d32acc8dcd4bb5122ab0a4812784732dc24ba3&amp;mpshare=1&amp;scene=1&amp;srcid=0921d0hVTPagmksDnAdvyG1R&amp;pass_tic)\u3002<\/p>\n<p>\u4e3a\u4e86\u4fc3\u8fdbEVS\u6280\u672f\u5728\u672a\u6765\u7684\u5546\u7528\u548c\u90e8\u7f72\uff0cMPEG LA(\u8bb8\u53ef\u8bc1\u7ba1\u7406)\u90e8\u95e8\u8fd1\u671f\u53d1\u5e03\u4e86EVS\u4e13\u5229\u7ec4\u5408\u6388\u6743\u8bb8\u53ef\uff0c\u5e76\u63d0\u4f9b\u4e86\u8be5\u9879\u901a\u4fe1\u6807\u51c6\u4e13\u5229\u7684\u9ad8\u6548\u8bbf\u95ee\u9014\u5f84\u3002\u8be5\u4e13\u5229\u7ec4\u5408\u6388\u6743\u8bb8\u53ef\u5c06\u6709\u52a9\u4e8eEVS\u6280\u672f\u5728\u5e02\u573a\u4e0a\u7684\u8fc5\u901f\u666e\u53ca\u3002\u66f4\u591a\u4fe1\u606f\uff0c\u6b22\u8fce\u8bbf\u95ee\uff1a<a href=\"http:\/\/www.mpegla.com\/Lists\/MPEG%20LA%20News%20List\/Attachments\/105\/EVSPrsRls2017-06-28.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.mpegla.com\/Lists\/MPEG%20LA%20News%20List\/Attachments\/105\/EVSPrsRls2017-06-28.pdf<\/a><\/p>\n<p>Fraunhofer IIS\u4e2d\u56fd\u533a\u4e1a\u52a1\u4ee3\u8868Toni Fiedler\u5148\u751f\u8868\u793a\uff1a\u201dEVS\u6280\u672f\u753112\u5bb6\u4f01\u4e1a\u5408\u4f5c\u7814\u53d1\uff0c\u5176\u4e2d\u5c31\u5305\u542b\u4e86\u91cd\u8981\u7684\u4e2d\u56fd\u4f01\u4e1a\u3002\u6211\u8ba4\u4e3a\u8fd9\u662f\u4e2d\u56fd\u6280\u672f\u8d70\u5411\u4e16\u754c\u821e\u53f0\u7684\u4e00\u4e2a\u5178\u578b\u6848\u4f8b\uff0c\u800c\u8fd9\u4e5f\u4e3aEVS\u8d70\u5165\u4e2d\u56fd\u5e02\u573a\u5960\u5b9a\u4e86\u575a\u5b9e\u7684\u57fa\u7840\u3002\u201c<\/p>\n<p><strong>\u9002\u7528\u4e8e\u6570\u5b57\u5e7f\u64ad\u548c\u4f4e\u6bd4\u7279\u7387\u97f3\u89c6\u9891\u6d41\u5a92\u4f53\u5e94\u7528\u7684<\/strong><strong>xHE-AAC<\/strong><strong>\u6280\u672f\u9996\u6b21\u4eae\u76f8\u4e2d\u56fd<\/strong><\/p>\n<p>xHE-AAC (\u62d3\u5c55\u578bHE-AAC)\u6280\u672f\u80fd\u591f\u8f7b\u677e\u6ee1\u8db3\u6570\u5b57\u5e7f\u64ad\u548c\u79fb\u52a8\u97f3\u89c6\u9891\u6d41\u5a92\u4f53\u5e94\u7528\u7684\u9700\u6c42\uff0c\u5373\u5728\u6781\u4f4e\u7684\u6bd4\u7279\u7387\u4e0b\uff08\u5355\u58f0\u9053\u4f4e\u81f36 kbit\/s\uff0c\u7acb\u4f53\u58f0\u4f4e\u81f312kbit\/s\uff09\u4f20\u8f93\u5404\u5f0f\u5404\u6837\u7684\u9ad8\u54c1\u8d28\u97f3\u9891\u5185\u5bb9\u3002\u56e0\u6b64\uff0c\u5728\u7f51\u7edc\u53d1\u751f\u62e5\u5835\u65f6\uff0cxHE-AAC\u6d41\u5a92\u4f53\u64ad\u653e\u5668\u80fd\u591f\u6309\u9700\u5207\u6362\u81f3\u6781\u4f4e\u7684\u6bd4\u7279\u7387\u6d41\uff0c\u5e76\u5b9e\u73b0\u8fde\u7eed\u4e0d\u95f4\u65ad\u7684\u8fd8\u653e\u6548\u679c\u3002\u5f53\u7f51\u7edc\u73af\u5883\u53d8\u597d\u65f6\uff0cxHE-AAC\u5ba2\u6237\u7aef\u80fd\u591f\u83b7\u53d6\u4e00\u4e2a\u66f4\u9ad8\u7684\u6bd4\u7279\u7387\u7248\u672c\uff0c\u5e76\u80fd\u5728\u6574\u4e2a\u6bd4\u7279\u7387\u8303\u56f4\u5185\u5b9e\u73b0\u65e0\u7f1d\u5207\u6362\u3002\u901a\u8fc7\u9ad8\u6548\u7684\u7f16\u7801\u6548\u7387\u800c\u8282\u7701\u51fa\u7684\u97f3\u9891\u5e26\u5bbd\u80fd\u591f\u4f7f\u89c6\u9891\u8d28\u91cf\u5f97\u5230\u8fdb\u4e00\u6b65\u63d0\u5347\u3002<\/p>\n<p>\u76ee\u524d\uff0c\u8be5\u9879\u6280\u672f\u5df2\u6210\u529f\u4e3a\u8bf8\u5982\u5370\u5ea6\u3001\u5370\u5ea6\u5c3c\u897f\u4e9a\u4ee5\u53ca\u975e\u6d32\u56fd\u5bb6\u7684\u6570\u5341\u4ebf2G\u7528\u6237\u5e26\u6765\u4e86\u7a33\u5b9a\u53ef\u9760\u4e14\u4e0d\u95f4\u65ad\u7684\u97f3\u9891\u6d41\u5a92\u4f53\u670d\u52a1\u3002\u51ed\u501f\u8be5\u9879\u6280\u672f\uff0c\u6d41\u5a92\u4f53\u670d\u52a1\u63d0\u4f9b\u5546\u80fd\u591f\u663e\u8457\u964d\u4f4eCDN\u5f00\u9500\u5e76\u5e26\u6765\u66f4\u4e3a\u7b80\u6613\u7684\u7f16\u7801\u5a92\u8d44\u7ba1\u7406\u65b9\u5f0f\uff0c\u800c\u7528\u6237\u4e5f\u80fd\u591f\u5728\u4eab\u53d7\u9ad8\u54c1\u8d28\u6d41\u5a92\u4f53\u670d\u52a1\u7684\u540c\u65f6\u8282\u7701\u6708\u5ea6\u6d41\u91cf\u3002<\/p>\n<p>Fraunhofer IIS\u4e2d\u56fd\u533a\u4e1a\u52a1\u4ee3\u8868Toni Fiedler\u5148\u751f\u603b\u7ed3\u9053\uff1a\u201c\u5728\u672c\u5c4aPT\/EXPO\u671f\u95f4\uff0c\u6211\u4eec\u5c55\u793a\u4e86Fraunhofer IIS\u5728\u901a\u4fe1\u9886\u57df\u6240\u6709\u7684\u6700\u65b0\u7814\u7a76\u6210\u679c\u4ee5\u53ca\u4e0b\u4e00\u4ee3\u5e7f\u64ad\u7535\u89c6\u97f3\u9891\u6807\u51c6\u3002\u8003\u8651\u5230\u5e02\u573a\u5bf9\u4e8e\u878d\u5408\u6280\u672f\u7684\u9700\u6c42\uff0c\u6211\u4eec\u4e3a\u7528\u6237\u5e26\u6765\u80fd\u591f\u8de8\u901a\u4fe1\u3001\u5e7f\u64ad\u7535\u89c6\u548cOTT\u5e73\u53f0\u90e8\u7f72\u7684\u97f3\u9891\u6280\u672f\u3002\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fraunhofer IIS\u57282017\u5e74\u4e2d\u56fd\u56fd\u9645\u4fe1\u606f\u901a\u4fe1\u5c55\u89c8\u4f1a\uff08PT\/EXPO\uff09\u4e0a\u5c55\u793a\u4e86\u4e00\u7cfb\u5217\u9876\u5c16\u79fb\u52a8\u97f3\u9891\u6280\u672f [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2982,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[153],"tags":[316,337,353,440],"class_list":["post-2980","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-events-tradeshows-cn","tag-cingo-cn","tag-evs-cn","tag-mpeg-h-cn","tag-xhe-aac-cn"],"_links":{"self":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts\/2980"}],"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=2980"}],"version-history":[{"count":3,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts\/2980\/revisions"}],"predecessor-version":[{"id":4331,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/posts\/2980\/revisions\/4331"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/media\/2982"}],"wp:attachment":[{"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/media?parent=2980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/categories?post=2980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioblog.iis.fraunhofer.com\/cn\/wp-json\/wp\/v2\/tags?post=2980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}