
Sony breaks the technological limits with the first theater broadcast at 4K National Theatre Live, una iniciativa del Teatro Nacional de Londres para emitir actuaciones en directo en pantallas de cine, ha realizado la primera representaci n teatral mundial en tecnolog a 4K, con la obra Caballo de batalla', en colaboraci n con Sony, Creative Broadcast Solutions, NEP Visions y Links Broadcast.
Por primera vez en el mundo, la galardonada producci n teatral Workhorse, basada en la novela de Michael Morpurgo, realizada por National Theatre Live, se ha retransmitido en directo en ultra alta resoluci n 4K a las pantallas del cine a nivel internacional.
The broadcasting of the work in 4K resolution of Sony, realizada el pasado 27 de febrero desde este teatro de Londres, a las pantallas de cine de todo el mundo se realiz con un proyector de la multinacional nipona, cuya grabaci n tambi n estar disponible en formato 4K DCP para que las salas puedan repetir pases en fechas posteriores.
En este proyecto han colaborado con Sony, que ha utilizado c maras CineAlta F55 Super con objetivos Fujinon Cabrio para captar la representaci n, las empresas Creative Broadcast Solutions (CBS), productor t cnico de NT Live junto con NEP Visions, que ha proporcionado la infraestructura t cnica para trasladar el contenido 4K desde la c mara a v a sat lite, as como para grabar y emitir una versi n HD simult nea.
Como ha se alado David Bush, responsable de marketing de Sony Europe, en el ADN de la compa a tenemos la voluntad de llevar a n m s lejos las barreras tecnol gicas. Ser capaz de demostrar, con la ayuda de los partners, el primer flujo de trabajo mundial desde el escenario a las pantallas, en directo y en 4K, de un proyecto tan aclamado como Caballo de batalla' representa un verdadero hito en el desarrollo de la tecnolog a 4K .
Collaborative production
La realizaci n de este proyecto ha contado con la experiencia y el trabajo intenso de los equipos de todas las empresas que han participado en el mismo. Para ello, las c maras utilizadas enviaban contenido 4K a adaptadores de fibra Sony BPU4000, que generan se ales 4K y de alta definici n simult neamente. Posteriormente, la informaci n se env a a un mezclador de visi n compatible con 4K para crear una mezcla en directo a partir de las seis se ales de c mara, a adiendo gr ficos y subt tulos (s lo para la versi n HD).
Los materiales del programa complementarios pregrabados se han importado a un servidor multimedia de Sony para la reproducci n. La mezcla en directo se pasa al proveedor de servicios v a sat lite Links Broadcast. El contenido de la mezcla se ha grabado en una Sony MasterDeck, tanto para el archivado como para la creaci n de un archivo maestro 4K DCP, que se enviar a los cines de todo el mundo.
NEP Visions tambi n ha grabado ISO 4K en dos MasterDecks de Sony adicionales para su uso posterior. Adem s de la presentaci n 4K, esta compa a ha proporcionado contenido HD simult neo en directo para su distribuci n a trav s de Links Broadcast a m s de mil salas de cine de todo el mundo, seg n el programa de emisiones existente de NT Live.
Por su parte, Links Broadcast ha proporcionado las instalaciones para la conexi n ascendente y descendente v a sat lite para garantizar la emisi n de la se al 4K de la obra Caballo de batalla' desde este teatro de Londres, concretamente en el cine Curzon en Chelsea.
El enlace ascendente 4K de Links Broadcast se presta junto con los enlaces ascendentes HD de Links y permite la codificaci n del contenido 4K entrante. Mediante cuatro codificadores EN-100 ADTEC s ncronos, la se al entrante se aglutina en una sola v a de transporte a trav s de un multiplexor DTA3050 Adtec. De esta forma puede transmitirse la representaci n utilizando una antena de 1,5 m como veh culo ascendente 4K de Links Broadcast.
La se al 4K asciende hasta el sat lite SES Astra 3B, con 36 Mhz de capacidad, con el fin de lograr la m xima tasa de datos de v deo posible en la v a de transporte 4K modulada. La se al entrante desciende hasta la sala de cine Curzon en Chelsea a trav s de una antena de recepci n de 1,8 m. de Links Broadcast y llega a los descodificadores del receptor RD70 Adtec y, por ltimo, se dirige hacia la sala de cine 4K de Sony para su proyecci n.
Para Brian Clark, director de proyectos t cnicos y comerciales de NEP Visions, ha sido un placer participar en el revolucionario espect culo que supone Caballo de batalla', un proyecto de enorme prestigio del National Theatre que se retransmite en directo en resoluci n 4K. Este proyecto forma parte de nuestro esfuerzo para seguir innovando en las reas de desarrollo de tecnolog a, apoyar a nuestros partners de producci n y permanecer a la vanguardia de la televisi n .
En esta l nea, Rob Wickings, director ejecutivo de Links Broadcast, ha subrayado que ha sido el desarrollo de tecnolog a de producci n televisiva m s atractivo del momento, y en particular de las transmisiones en directo v a sat lite .
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