{"id":398,"date":"2015-10-23T14:29:13","date_gmt":"2015-10-23T14:29:13","guid":{"rendered":"http:\/\/revistahometheater.uol.com.br\/portal\/?p=398"},"modified":"2016-09-14T14:15:51","modified_gmt":"2016-09-14T14:15:51","slug":"emissoras-veem-barreiras-para-adotar-o-padrao-uhd","status":"publish","type":"post","link":"https:\/\/www.hometheater.com.br\/portal\/2015\/10\/23\/emissoras-veem-barreiras-para-adotar-o-padrao-uhd\/","title":{"rendered":"Emissoras v\u00eaem barreiras para adotar o padr\u00e3o UHD"},"content":{"rendered":"<p><a href=\"#\" target=\"_self\" class=\"buttons btn_blue left\"><span class=\"left\">Por Robert Archer*<\/span><\/a>Enquanto fabricantes e entusiastas se animam com a tecnologia Ultra-HD, e provedores como Netflix e Amazon aumentam (ainda que de forma limitada) a oferta de conte\u00fados com essa resolu\u00e7\u00e3o, o setor de televis\u00e3o tem desafios mais complicados a enfrentar.<\/p>\n<p>Com certeza, n\u00e3o apenas 4K mas tamb\u00e9m <a href=\"http:\/\/orlandobarrozo.blog.br\/?p=15793\">HDR<\/a> (<em>High Dynamic Range<\/em>) e gama de cores expandida (<a href=\"http:\/\/www.itu.int\/rec\/R-REC-BT.2020-1-201406-I\/en\">ITU-R BT.2020<\/a>) s\u00e3o prioridades; no entanto, como se sabe, a rede japonesa NHK j\u00e1 est\u00e1 demonstrando aplica\u00e7\u00f5es 8K, muito mais avan\u00e7adas.<\/p><div class=\"homet-conteudo\" style=\"text-align: center;\" id=\"homet-990151667\"><div data-cfpa=\"35734\" data-cfpw=\"35734\" id=\"homet-316671864\"><a data-no-instant=\"1\" href=\"https:\/\/www.harmanluxuryaudio.com\/\" rel=\"noopener\" class=\"a2t-link\" aria-label=\"ARCAM-SA45-BANNER-NEWSLETTER\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.hometheater.com.br\/portal\/wp-content\/uploads\/2025\/09\/ARCAM-SA45-BANNER-NEWSLETTER.gif\" alt=\"\"  class=\"no-lazyload\" width=\"300\" height=\"250\"   \/><\/a><\/div><h6><span style=\"color: #808080;\"><em>Publicidade<\/em><\/span><\/h6>\r\n<\/br><script type=\"text\/javascript\">;new advadsCfpAd( 35734 );<\/script><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"http:\/\/revistahometheater.uol.com.br\/site\/img\/upload\/167449.jpg\" alt=\"\" width=\"350\" height=\"279\" \/>Recentemente, o blog da <a href=\"https:\/\/www.smpte.org\/\">SMPTE<\/a> (<em>Society of Motion Picture and Television Engineers<\/em>) publicou declara\u00e7\u00f5es de Andy Quested, diretor de HD e UHD para a BBC de Londres, que merecem ser analisadas. Segundo ele, a comunidade de televis\u00e3o como um todo ainda ter\u00e1 de discutir muitos aspectos da tecnologia 4K antes que as transmiss\u00f5es desse tipo se tornem realidade.<\/p>\n<p>Uma de suas justificativas \u00e9 que, embora o mercado de consumo j\u00e1 esteja maduro com os TVs UHD; os fabricantes de c\u00e2meras 4K estejam aperfei\u00e7oando consideravelmente seus produtos; e os provedores de internet criando mais oportunidades na distribui\u00e7\u00e3o de conte\u00fados por IP; ainda assim, nota-se a falta de servi\u00e7os em UHD. E somente quando toda a cadeia estiver atendida \u00e9 que essa inova\u00e7\u00e3o chamada 4K poder\u00e1 ganhar corpo.<\/p>\n<p>&#8220;\u00c9 um grande risco investir hoje em 4K&#8221;, diz o executivo da BBC. &#8220;Por que algu\u00e9m colocaria tanto dinheiro na produ\u00e7\u00e3o de conte\u00fado e nas redes de distribui\u00e7\u00e3o, sendo que o benef\u00edcio percebido pelo usu\u00e1rio \u00e9 apenas um pouco melhor&#8221;? Baseado nas tend\u00eancias atuais de mercado, Quested acha que a maior \u00eanfase ser\u00e1 dada na distribui\u00e7\u00e3o via streaming, e n\u00e3o por TV, com o surgimento de receptores do tipo set-top box compat\u00edveis com os novos televisores. Com o tempo, diz ele, isso acabar\u00e1 ajudando a criar um ecosistema de TV 4K.<\/p>\n<p>De acordo com a SMPTE, o primeiro passo nessa dire\u00e7\u00e3o \u00e9 a recomenda\u00e7\u00e3o BT.2020 UHD-1 (2.160 pixels), da <a href=\"http:\/\/www.abert.org.br\/web\/index.php\/tecnicabiblioteca\/category\/uit\">ITU<\/a> (sigla em ingl\u00eas da Uni\u00e3o Internacional de Telecomunica\u00e7\u00f5es), que dita as normas nessa \u00e1rea. A segunda fase seria um plano para implanta\u00e7\u00e3o do padr\u00e3o <a href=\"http:\/\/orlandobarrozo.blog.br\/?p=14674\">Super Hi-Vision<\/a>, tamb\u00e9m chamado UHD-2 ou 8K (4.320 pixels). Mas Quested tem d\u00favidas: &#8220;Nem sabemos se algum dia haver\u00e1 transmiss\u00f5es em 8K&#8230; as emissoras japonesas e coreanas n\u00e3o t\u00eam certeza disso.&#8221;<\/p>\n<p>Ele admite que a Olimp\u00edada de 2020, em T\u00f3quio, pode ser uma exce\u00e7\u00e3o, j\u00e1 que a <a href=\"http:\/\/orlandobarrozo.blog.br\/?p=15881\">NHK planeja transmitir o evento em 8K<\/a>. &#8220;Mas esse \u00e9 apenas um evento, o que \u00e9 muito diferente de se ter uma programa\u00e7\u00e3o inteira nesse padr\u00e3o&#8221;, explica Quested. &#8220;N\u00e3o acredito que os japoneses decidam isso at\u00e9 a \u00e9poca dos Jogos. O tempo \u00e9 curto, e eles ainda ter\u00e3o que montar toda a infraestrutura. Nesse meio-tempo, as experi\u00eancias continuam.&#8221;<\/p>\n<p>Outra quest\u00e3o que as emissoras de todo o planeta ter\u00e3o que analisar refere-se ao financiamento da nova tecnologia. Se os consumidores t\u00eam condi\u00e7\u00f5es de decidir j\u00e1 sobre a compra ou n\u00e3o de um TV 4K, para os grupos de m\u00eddia o processo \u00e9 bem mais complexo. &#8220;H\u00e1 um certo esgotamento, que exigir\u00e1 decis\u00f5es envolvendo a pr\u00f3pria natureza do neg\u00f3cio&#8221;, analisa.<\/p>\n<p>Especulando sobre o futuro, Quested acha que teremos uma combina\u00e7\u00e3o de m\u00e9todos diferentes de entrega de conte\u00fado, tendo sempre como base o acesso mais amplo poss\u00edvel. &#8220;Ser\u00e1 que o consumidor ficar\u00e1 preocupado de onde est\u00e1 vindo seu conte\u00fado?&#8221;, pergunta ele. &#8220;O importante \u00e9 que a imagem seja boa, e nesse ponto temos grandes perspectivas. Mas as emissoras precisar\u00e3o conquistar a aten\u00e7\u00e3o das pessoas, seja sentadas no sof\u00e1 ou usando um aparelho port\u00e1til. E o p\u00fablico n\u00e3o aceita nada que seja complicado.&#8221;<\/p>\n<p><strong>*Artigo publicado originalmente no site CE Pro. Clique <a href=\"http:\/\/www.cepro.com\/article\/8k_uhd2_hdr_video_move_forward\/?utm_source=CEPWeekly&amp;utm_medium=email\">aqui<\/a><\/strong><strong>para ler o original na \u00edntegra.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enquanto fabricantes e entusiastas se animam com a tecnologia Ultra-HD, e provedores como Netflix e Amazon aumentam (ainda que de forma limitada) a oferta de<\/p>\n","protected":false},"author":1,"featured_media":400,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artigos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Emissoras v\u00eaem barreiras para adotar o padr\u00e3o UHD - HT &amp; Casa Digital<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hometheater.com.br\/portal\/2015\/10\/23\/emissoras-veem-barreiras-para-adotar-o-padrao-uhd\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Emissoras v\u00eaem barreiras para adotar o padr\u00e3o UHD - HT &amp; 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