7680 X 4320 Bientôt enfin de la vraie HD , mais pour qui ?

[video33]

Eutelsat Communications is the holding company of Eutelsat S.A., the leading satellite operator in Europe and one of the top 3 global providers of Fixed Satellite Services (FSS).

WORLD-FIRST DEMO OF NEXT-GENERATION HDTV IN SUPER HI-VISION DELIVERED BY EUTELSAT AT IBC 2008
Eutelsat is providing a satellite link via ATLANTIC BIRD™ 3 for a demo of next-generation HDTV in Super Hi-Vision at IBC 2008 in Amsterdam from September 12 to 16.

The 7680 x 4320 pixel Ultra-HDTV system developed by Japan’s national broadcaster NHK has been seen before, but for the first time in the world a satellite is providing content internationally into a live demonstration.

With 60 progressive frames a second, the picture resolution of Super Hi-Vision is 16 times current HD signals which already represent a significant step forward in the audio and video experience for television viewers. The audio of Super Hi-Vision is 22.2 channels: nine channels at ceiling height, ten at the centre height of the screen, three front channels and low frequency effect channels at the front.

Current research into Super Hi-Vision is enabling its primary partners NHK, RAI, BBC and the EBU to assess this new technology as well as future applications which in the first phase could include public viewing or theatre screenings, followed by broadcasting. The IBC set-up is a theatre containing a 6.95 metre diagonal projection screen and full audio system with demonstrations running for the duration of IBC. The significance of these demonstrations is that it is bringing live pictures and pre-recorded content from remote locations into the demonstration theatre in Amsterdam. With a native digital signal of 24Gbps a major part of the challenge has been in developing compression schemes that will allow super Hi-Vision to be transported.

As well as being shown in the NHK theatre, the demonstration is displayed on Eutelsat's stand (Hall 1, Stand D.59) downconverted for viewing over a professional 56" 4k LCD screen.

Part of the content comes from a server at RAI’s research headquarters in Turin. Using 16 encoders in parallel, the content is compressed in MPEG-4/H.264 to around 140 Mpbs and delivered over two full satellite DVB-S2 transponders via Eutelsat’s ATLANTIC BIRD™ 3 satellite. The demonstration has confirmed that the satellite is a mature and ready technology for a challenging new–generation transmission.

[cyberdom]

Merci pour l'info video33. Ca sera encore plus net que net .

[FEEDELE]

Je suis fier d'être Français et de pouvoir lire ma langue...bon i have a little compris ...but tout de même

[POLO9999]

http://www.pcinpact.com/actu/news_multi/46022.htm

Voila un article en Français traitant de la chose (avec 2 images illustré)

Déja ca va être chaud pour la reception en voyant l'image (il faudra 2 tuners pour pouvoir recevoir un premier signal de 140Mbps ! (2x70 Mbps émis en DVB-S2).

Le second test via Internet a été émis avec du 640 Mbps ! (Bref... on atteint des lignes complètement hors normes en ce moment).

Mais pour l'instant cela reste du MPEG-2 et non du 4 donc il pourrai avoir une bande passante moins grande.