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SMPTE Publishes Immersive Audio Standards for Cinema

26/09/2018

SMPTE Publishes Immersive Audio Standards for Cinema

New Standards Simplify Distribution of Immersive Audio, Ensure Smooth and Consistent Playout on Various Immersive Sound Systems

WHITE PLAINS, N.Y. - Sept. 25, 2018 - SMPTE , the organization whose standards work has supported a century of advances in entertainment technology and whose membership spans the globe, today announced the publication of new SMPTE ST 2098 standards for immersive audio. The Society has published ST 2098-1:2018, Immersive Audio Metadata; ST 2098-2:2018, Immersive Audio Bitstream Specification; and ST 2098-5:2018, D-Cinema Immersive Audio Channels and Soundfield Groups.

Immersive audio makes a significant impression on audiences, and because of the real value it adds, were seeing an increasing number of movies being mixed for the immersive environment, said Brian Vessa, founding chair of SMPTEs Technology Committee on Cinema Sound Systems (TC-25CSS) and executive director of digital audio mastering at Sony Pictures Entertainment. By supporting delivery of a standardized immersive audio bitstream within a single interoperable digital cinema package, the new SMPTE immersive audio standards simplify distribution while ensuring that cinemas can confidently play out immersive audio on their choice of compliant Immersive sound systems.

SMPTE ST 2098-1 establishes the metadata for use in creating immersive audio content for cinema. The standard defines the metadata items supported in immersive audio content and, when appropriate, the range of values, value precisions, and cardinal values. (The format of the metadata items when carried in a bitstream or file is provided in SMPTE ST 2098-2.)

SMPTE ST 2098-2 defines a coded representation (bitstream) that carries the audio essence and metadata necessary to reproduce a complete immersive audio program.

SMPTE ST 2098-5 defines names and abbreviations for immersive audio channels and soundfield groups associated with D-Cinema immersive audio presentation. This standard also provides guidance on typical locations of cinema loudspeakers used for immersive audio reproduction.

The new standards for immersive audio are available now in the SMPTE digital library hosted on the IEEE Xplore platform.

A podcast with Vessa as a guest, discussing the challenges in sound quality in the cinema is now available:

Further information about SMPTE and its standards work is available at www.smpte.org.

# # #

About SMPTE

For more than a century, the people of the Society of Motion Picture and Television Engineers, or SMPTE (pronounced simp-tee), have sorted out the details of many significant advances in media and entertainment technology, from the introduction of talkies and color television to HD and UHD (4K, 8K) TV. Since its founding in 1916, SMPTE has received an Oscar and multiple Emmy Awards for its work in advancing moving-imagery engineering across the industry. SMPTE has developed thousands of standards, recommended practices, and engineering guidelines, more than 800 of which are currently in force today. SMPTE Time Code and the ubiquitous SMPTE Color Bars are just two examples of SMPTEs notable work. Now in its second century, SMPTE is shaping the next generation of standards and providing education for the industry to ensure interoperability as the industry evolves further into IT- and IP-based workflows.

SMPTE is a global professional association of technologists and creatives who drive the quality and evolution of motion imaging. Its membership today includes more than 7,000 individuals: motion-imaging executives, creatives, technologists, researchers, and students who volunteer their time and expertise to SMPTEs standards development and educational initiatives. A partnership with the Hollywood Professional Association (HPA) connects SMPTE and its membership with the businesses and individuals who support the creation and finishing of media content. Information on joining SMPTE is available at www.smpte.org/join.

All trademarks appearing herein are the properties of their respective owners.

Link to Word Doc: www.wallstcom.com/SMPTE/180925SMPTE.docx

[Link to Photos:] www.wallstcom.com/SMPTE/SMPTE_Brian-Vessa.jpg

Caption: Brian Vessa, founding chair of SMPTEs Technology Committee on Cinema Sound Systems (TC-25CSS) and executive director of digital audio mastering at Sony Pictures Entertainment

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