#LIFEWITHOUTSMPTE - #SMPTE #Video Related #Standards
SMPTE has created video standards for many years, initially for North America and other countries adopting like standards. In the 1980s, following close cooperation with SMPTE on development of the first international digital standards, the European Broadcast Union (EBU) decided to continue the close cooperation, and to rely on SMPTE to publish standards for all areas of the world. SMPTE has progressed in both analog and digital formats, and many of its standards have been used as the basis for ITU Recommendations. In the mid 2000’s Japan’s National Broadcaster, NHK, asked SMPTE to standardize the basic parameters of a family of Ultra-High Definition Television (UHDTV) formats, to provide a consistent basis for those doing development work in the field.
Timed Text is accelerating the transition of broadcast content to the Internet and makes it more easily accessible to tens of millions of people in the U.S. with disabilities. SMPTE Timed Text is also the basis for subtitles and captions in the Digital Entertainment Content Ecosystem’s UltraViolet™ format for commercial movie and television content and is used by several video services and Internet video players.
Electro-Optical Transfer Function (EOTF) and High Dynamic Range (HDR) that viewers will see a wider range from the brightest whites to the darkest blacks providing a substantial enhancement to HD or UHDTV pictures. SMPTE standards cover the electro-optical transfer function and associated metadata. Studies are underway to determine requirements for the complete HDR and UHDTV ecosystems.
Serial Digital Interface (SDI and HD-SDI), a well-established standard in the broadcasting industry, is a family of digital video interfaces used for broadcast-grade video. High-Definition SDI (HD-SDI) is used to transfer uncompressed high-definition video. These standards are used for transmission of uncompressed, unencrypted digital video signals (optionally including embedded audio and time code) within television facilities. SMPTE was awarded an Emmy® statuette for HD-SDI in 2013. HD-SDI is a 1.5 Gb/s interface; already SMPTE has published a 3 Gb/s version, and the committees a close to completing work on the 6 Gb/s and 12 Gb/s versions needed for UHDTV and other advanced imaging applications.
Interoperable Master Format (IMF) Did you know that there are often more than 35,000 possible versions of a film based on every possible version, including cinematic exhibition, home viewing, broadcast, cable, in flight, multiple languages, varying aspect ratios, and Internet distribution? IMF is a solution that solves the issue of multiple versions and is now being deployed using SMPTE standards documents. The concept is that, rather than storing a vast number of versions, all the individual assets (such as the various possible video elements, the different audio and subtitle tracks, etc.) are stored individually, and represent the inventory required to produce any required version. For each version, an extensible markup language (XML) composition playlist (CPL) specifies how the appropriate segments of each asset should be assembled to create the required program version. Automated systems can invoke the CPL to assemble any version on demand. A new version may be created at any time by writing a new CPL.
Material eXchange Format (MXF) is a very flexible file transfer format defined by a number of SMPTE Standards. It permits interoperability of content among various applications used in the television production chain, and enhances operational efficiency and creative freedom. It has become the universal solution in file-based television operations, and has also been adopted as the foundation for D-Cinema distribution.
SMPTE Transport of High Bit Rate Media Signals over IP Networks creates a standardized framework for the transport of video over Internet Protocols (IP) networks. This framework is vital for future-proofing content creation and distribution infrastructures as the media and entertainment industries undergo massive transitions to the IP-based enterprises that facilitate multipoint transmission, a critical enabler in monetizing content and advertising in new ways across multiple screens, such as computers, smart phones, and tablets.
Compression Systems - SMPTE has standardized five VC standards: VC-1 to VC-5 to provide well-reviewed documentation and enhanced interoperability. The latest of these is the VC-5 standard family that provides documentation and reference software for the video compression used in GoPro systems and workflows. SMPTE also has a new project to document the Apple ProRes codec.
Coding of Tactile Essence - Want to feel the roar of the engine while watching a car race? Tactile essence will make this possible! Tactile/ haptic or motion enabled broadcasts and transmissions can be described as the end to end use of technology to capture, insert and/or encode into the broadcast or transmission, transmit, decode and conversion of the tactile or haptic “feeling” and “impact” of a live event and so that a remote viewer can receive and experience not only audio and video but the haptic or tactile “feeling” and “impact” of that event, regardless of the transmission means whether cable, satellite, over-the-air, or Verizon FiOS®.