Tag Archive: DVB

DVB Moves Forward With Next Phase Of UHDTV

At the 81st meeting of the DVB Steering Board, Commercial Requirements for the next phase of Ultra High Definition Television were approved thus allowing the technical work on the specification to progress.

UHDTV will bring higher technical quality and greater realism to television viewers. The path to UHDTV was set in the ITU in 2012 with a potential list of new features for future television (ITU-R BT.2020.) Since then, DVB has developed, and continues to develop, systems to allow appropriate features to be practically delivered to the public. A major milestone for television has now been reached with the agreement on the requirements for a ‘UHD-1 Phase 2’ delivery format.

The first system developed by DVB in 2014 was termed ’DVB UHD-1 Phase 1’. This offered content providers the possibility of delivering services with images with four times the resolution of 1080p HDTV.  This is available and is in use, but in future it will be possible to also provide services with further features to enhance the viewing experience. This is termed ‘DVB UHD-1 Phase 2’.

A key new feature will be the capability to provide images with a high dynamic range (the difference between the blackest black and the whitest white in the image), termed HDR.  Television sets of the future will allow higher peak screen brightnesses that can exploit the HDR. This is seen as a major potential gain in image quality, said to add ‘sparkle’ to the image.

Other new features may be available for UHDTV in the same timetable such as ‘Next Generation Audio’ offering a number of new options for sound.

A further potential new feature is the capability to provide images with sharper moving objects – a higher frame rate or HFR. The development of practical consumer equipment for this feature may take longer than the above features, and thus it may follow several years after them.

Technical specifications are to be included that would allow, when needed by the service operator, users already using Phase 1 to make use of Phase 2 services (backwards compatibility).

The task now remains for the DVB Technical Module to translate the Commercial Requirements into a technical specification, which once completed will be submitted to the European Telecommunications Standards Institute (ETSI) for standardization. It is expected that the specification will be finalized in 2016. This could mean that the first DVB UHD-1 Phase 2 services, that include the HDR feature, would be available from 2017 onwards.

DVB Chairman, Phil Laven, said “This is a major achievement for DVB and the television industry.  We now have a plan for the evolution of television into the age of Ultra High Definition Television.  It’s an exciting future that will bring a new quality of experience to television”.

 

www.dvb.org

 

SES, SAMSUNG AND BBC DEMONSTRATE WORLD’S FIRST DVB BROADCAST OF HDR ULTRA HD TV

SES and Samsung Electronics Co. Ltd announced today that they will be demonstrating the first DVB transmission of High Dynamic Range UHD TV at the annual SES Industry Days in Luxembourg 6th and 7th May 2015. The content will be transmitted via an SES satellite directly to a Samsung SUHDTV using the Hybrid Gamma (HDR) technology. Read the rest of this entry »

HEVC REVOLUTIONIZES UHDTV ON DVB PLATFORMS AT IBC

Following the approval in July of the specifications for the use of HEVC in the DVB environment and DVB-UHDTV Phase1, which was seen as a significant step in the road to Ultra High Definition TV services, DVB continues to make progress towards the next phase in the UHD standardization process.

At this year’s IBC, DVB’s main concentration will be to demonstrate how the coding efficiency of HEVC can be used to increase the capacity of the DVB-T2 terrestrial platform as well as for the new DVB-S2X satellite standard. Utilizing HEVC encoding, multiple UHD services will be delivered using DVB-S2X and multiple HD channels over DVB-T2.

The DVB-S2X demonstration will highlight the new standard that offers spectral efficiency of up to 50% for professional applications. S2X will be implemented with HEVC to deliver 4 UHD signals at a data rate of 100 Mbit/s. DVB-S2X provides more choices for roll-off factors as well as additional modulation and Forward Error Correction options that allow for the more efficient use of satellite transmission channels. It enables channel bonding of up to 3 satellite channels, which support higher aggregate data rates and allow for additional statistical multiplexing gain for services such as UHDTV.

In another demonstration up to 7 HEVC encoded High Definition channels will be delivered in one multiplex using DVB-T2 in a robust mode suitable for small indoor antennas and portable reception. Both fixed reception and mobile reception will be demonstrated.

www.dvb.org

via @videomageu

 

DVB-T2 first for Czech Republic

Ceske Radiokomunikace (CRa) has become the first company in Central Europe to undertake DVB-T2 tests with the new HEVC compression codec.

According to Michal Bures, who is heading up the Ultra HD trial for the Czech transmission company, they already show that it is possible to achieve savings compared to the current bitstream using MPEG-2.

This means that in future it will be possible to three TV channels in Ultra HD or 10 in HD on one DVB-T2 multiplex.

In the case of SD, it will be possible to distribute up to 40 channels, compared to the eight currently via a DVB-T MPEG-2 multiplex.

Marcel Prochazka, director of regulation and strategy at CRa, added that the migration to DVB-T2 with HEVC will enable the development of entirely new types of services for TV viewers.

Besides increasing the number of channels in higher quality, it will allow for mobile TV reception and the interconnection of TV with internet services.

It is assumed that DVB-T and DVB-T2 will operate in parallel with each other for several years, and negotiations as to when DVB-T2 can be introduced are currently being undertaken with the Czech Telecom Office (CTU).

The DVB-T2 tests are being undertaken with the support of Sony.

Source: broadbandtvnews.com

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