Balloting on the first component of ATSC 3.0's physical layer is set to close May 6, ATSC said Friday in The Standard, its monthly online newsletter. The first ballot from ATSC’s Technology Group 3 is to elevate the “working draft” of a “system discovering and signaling” document to a “candidate standard,” the newsletter said. This “important part” of the physical layer is called the “bootstrap” or “preamble,” and it provides “robust signaling and synchronization,” it said. Balloting on the document began April 8, ATSC 3.0's framers said at the NAB Show (see 1504130030), If approved, the document would be the first part of ATSC 3.0 that’s elevated to candidate standard status “and represents a major milestone of the process,” it said. “Additional documents describing the physical layer and other layers of the system are expected in the coming months.” Balloting on each of ATSC 3.0's components typically will be a four-week process, it said. As ATSC 3.0's component parts are adopted as standards, they will be numbered after the ATSC specialist groups where they originated, it said. Since the S32 specialist group is responsible for the physical layer, the first document from S32 will be numbered “A/321,” it said.

LG, GatesAir and Zenith Labs, developers of the Futurecast system, plan a media briefing Monday at the NAB Show to trumpet the news, announced this week, that Futurecast no longer is just a physical-layer proposal for ATSC 3.0 but has been expanded "to incorporate all of the major elements of an ATSC 3.0 next-generation broadcast system." Futurecast is now "a complete system" for ATSC 3.0 that incorporates proposals for the next-gen system's applications/presentations layer and management/protocol layer, its backers said. New Futurecast attributes to be demonstrated at the GatesAir booth in the Las Vegas Convention Center's Central Hall include its "integrated emergency alerting" capability that triggers activation of the next-gen Advanced Warning and Response Network, they said. Also to be demonstrated is Futurecast's capability to "seamlessly deliver addressable content" on two LG Smart TV systems that "render the advertisement slot differently while displaying identical programmatic content," they said. "The goal is to show how broadcasters can leverage ATSC 3.0 technologies to extend their current service by efficiently distributing addressable content such as targeted ads or personalized/localized program elements to viewers utilizing an ATSC 3.0 system."

All three ATSC 3.0 audio system proponents delivered detailed system proposals on time by the Monday deadline, marking the formal beginning of the review, ATSC said Tuesday. The three proponents are Dolby Labs, DTS and the MPEG-H audio consortium of Fraunhofer, Qualcomm and Technicolor. Their systems will be tested "discretely and in their entirety" this summer "as comprehensive, end-to-end systems" for use as the audio layer for the ATSC 3.0 signal, with the goal to complete a candidate standard for ATSC 3.0's audio component this fall, ATSC said.Though DTS has yet to formally introduce its DTS:X object-based surround technology, the ATSC released the most comprehensive summary of the technology disclosed so far. "DTS:X is the next-generation object-based codec technology from DTS," said the summary submitted to and released by ATSC. "This release is the successor to DTS-HD and marks another milestone in DTS's long line of industry-leading sound innovations. DTS:X delivers the ultimate in flexibility, immersion and interactivity to listeners of all forms of entertainment. The DTS:X solution for ATSC 3.0 is an end-to-end broadcast chain that includes support for key elements including both audio channels and objects, advanced loudness and dynamics management, device and environmental playback processing, and is integrated with DTS's Headphone:X technology." DTS:X will be delivered "with the industry support and certification that has made DTS the trusted partner for industry professionals all over the world," the summary said. "Manufacturers representing nearly 90 percent of the home AV receiver and surround processor market, as well as several integrated circuit providers, have agreed to launch products supporting DTS:X in 2015. DTS is also working with a wide range of infrastructure partners to ensure broadcasters have choices when building a complete system." Much more has been disclosed about the Dolby and MPEG-H technologies, though the ATSC-released summary of Dolby's proposal offered the first confirmation that the Dolby AC-4 codec is at the heart of its ATSC 3.0 audio proposal (see 1501210023). "Rooted in generations of broadcast audio experience, Dolby AC-4 provides the content and device industries a strong foundation to collaboratively build leading-edge audio experiences that meet the needs of consumers of varied interests and abilities," Dolby's summary said.

The ATSC is “on track” to move to an ATSC 3.0 “candidate standard” later this year, said Luke Fay, a Sony Electronics software systems engineer and chairman of the ATSC’s S32 specialist group, in the March issue of The Standard. Once a candidate standard is done, “those who would implement the details will have a chance to build equipment and test the Candidate Standard in a real world environment,” Fay said in the ATSC monthly newsletter released Tuesday. “That’s where all of the poking and prodding will be done with the elements of the system. It’s a trial of new technology, and a chance to see if anything was overlooked when developing the standard.” Next in the process, ATSC 3.0 as a “proposed standard” will be balloted on, he said: Once approved, ATSC 3.0 will be done. The upcoming audio system tests for ATSC 3.0 “will be world’s first to evaluate immersive sound for a broadcast television standard,” the newsletter said. Three immersive audio formats will be tested, it said: (1) A 7.1 surround system ("7.1+4") with four height channels added in a square above the listener; (2) The 22.2-channel three-dimensional surround format pioneered by NHK as part of its Super Hi-Vision system, (3) High-Order Ambisonics (HOA), a “scene-based” format that’s independent of channels and "can be rendered and optimally mapped into whatever reproduction channels are available to the listener." ATSC will test HOA "as rendered" to 22.2 channels, the newsletter said. ATSC’s S34-2 ad hoc group on ATSC 3.0 audio has selected about 60 sound tracks for testing the three audio systems that have been proposed for ATSC 3.0, it said. The three proponents are Dolby Labs, DTS and the MPEG-H consortium of Fraunhofer, Qualcomm and Technicolor (see 1501130054). March 9 is the deadline for all three proponents to deliver detailed technical proposals to the S34-2 ad hoc group, ATSC President Mark Richer said in the newsletter. In all, about 12-14 clips have been selected for each of the five different channel formats being tested, the newsletter said. They include Suzanne Vega’s "Tom’s Diner," a rare a cappella solo, with very little reverb added, which is why it originally came into use for this purpose, pieces from the Henry Mancini orchestra rendering of "Moon River," a live version of "Whole Lotta Love" from Robert Plant, Fleetwood Mac’s "Never Going Back Again," a clip from the soundtrack from the filmed version of Chicago featuring Catherine Zeta-Jones, and an excerpt from NBC Nightly News. “The rest are from lesser known classical or jazz artists, specialized solo-instrument recordings, applause, sports commentary/game sounds (golf and hockey), ambient recordings and cinematic sound effects,” the newsletter said.

Correction: Mark Aitken of Sinclair chairs the ATSC's Specialist Group on Mobile DTV (see 1502250051); Glenn Reitmeier of NBC Universal is ATSC chairman.

The ATSC formed a new “implementation team” for advanced emergency alerting as a "key element" of the next-gen ATSC 3.0 DTV standard, the group said Thursday. “Advanced emergency alerting promises to create new significant value for viewers, consumer electronics manufacturers, broadcasters and the public safety community," ATSC President Mark Richer said. "The addition of advanced emergency alerting capability and the accompanying rich-media warning information represents a compelling ATSC 3.0 application.” The implementation team, chaired by Jay Adrick, a technology adviser to Gates Air, won't develop standards or recommended practices, but may make recommendations to ATSC and other standards development organizations "as appropriate," the group said.

CEA’s “R4.0” Video Systems standards development committee formed a new working group (R4WG18) on receivers for the next-gen ATSC 3.0 broadcast DTV standard, ATSC said Monday in its monthly newsletter. R4WG18 is co-chaired by Martin Freeman of Samsung and Peter Shintani of Sony, and its charter “is to develop standards, recommended practices and technical reports on receiver guidelines, profiles and characteristics in support of the ATSC 3.0 emission standard,” ATSC said. “A fast-track liaison process has been established between ATSC and CEA for the two-way exchange of important information between the two standards development organizations,” ATSC said. The point men on the liaison will be Paul Thomsen, a technology adviser to CEA, and Rich Chernock of Triveni Digital, who chairs the ATSC’s "TG3" technology group that’s leading the ATSC 3.0 development effort.

Though ATSC said in its Dec. 8 call for proposals (CFP) that it has no plans “to develop the ATSC 3.0 audio system out of independent components from multiple sources" (see 1412090019), that won’t preclude the possibility that ATSC will pick multiple audio codecs for the next-gen broadcast system, ATSC President Mark Richer emailed us Thursday. "ATSC may select a single audio system or multiple audio systems for ATSC 3.0." He was reacting to a statement from DTS, one of three contestants to submit ATSC 3.0 audio proposals in response to the CFP, in which it supported ATSC picking multiple audio codecs rather than deciding on a single mandatory audio standard for ATSC 3.0. At DTS, “we believe ATSC 3.0 audio should be a multi-codec choice and not a single mandatory solution,” spokesman Jordan Miller emailed us Wednesday. Though Miller didn't say so, the statement seemed an attempt to forestall ATSC choosing Dolby or another technology as a single mandatory audio codec for ATSC 3.0 as ATSC did in picking Dolby AC-3 as the mandatory audio codec for the existing DTV broadcast system. Dolby and the "MPEG-H Audio Alliance" of Fraunhofer, Qualcomm and Technicolor were the other contestants to submit proposals in response to the CFP. “Choice, innovation and competition are important to ATSC and broadcasters, and a framework for multiple audio codecs will be key to allowing broadcasters to choose the solution that best matches their needs," Miller of DTS said. "This will ensure that ATSC can remain at the forefront of technology in the face of competing systems, and ensure consumer-electronics manufacturers are not beholden to a single, mandatory technology provider.” Miller confirmed that DTS:X, “our next generation object based audio platform, is the core component of our ATSC 3.0 submission.” For Miller, it was a somewhat more sweeping claim of the role of DTS:X in the DTS ATSC 3.0 submission than he made a day earlier when he told us only that a “portion” of DTS:X would be “leveraged” in the DTS ATSC 3.0 audio proposal (see 1501210023).

Three proponents had registered by Tuesday afternoon their intent to vie for selection as the audio system for the next-gen ATSC 3.0 broadcast specification, ATSC spokesman Dave Arland emailed us. The deadline for responses to ATSC’s Dec. 8 call for proposals (CFP) was 11:59 p.m. EST Tuesday. The three proponents are Dolby Labs, DTS and, as a group, Fraunhofer, Qualcomm and Technicolor, Arland said. ATSC, through its S34-2 ad hoc group, plans a thorough but fast-track process for choosing a proponent audio system for ATSC 3.0, in keeping with ATSC’s self-imposed deadline of finishing the ATSC 3.0 standard by the end of this year, its CFP said (see 1412090019). Audio systems proposed "will be judged discretely and in their entirety, as comprehensive, end-to-end systems for emission of the ATSC signal," the CFP said. "ATSC does not intend to develop the ATSC 3.0 audio system out of independent components from multiple sources."

ATSC is looking ahead to 2015 "with eager anticipation, tempered with a healthy dose of cautious optimism," as the next-gen ATSC 3.0 broadcast system approaches the status of a "candidate standard" in the months ahead, ATSC President Mark Richer said in a President's Memo in ATSC's monthly newsletter, published Friday. "The process is the process, and there will need to be some give and take" as ATSC's "TG3" technology group works to make the candidate standard a reality, Richer said. The ATSC board "is urging TG3 participants to keep their eye on the prize and quickly resolve issues that arise or find ways to move forward on a path toward resolution" as the candidate standard is finalized, he said. "The eyes of the world are on the ATSC and our disciplined, inclusive, open approach to standards-setting. As such, it’s crucial that the new standard both moves ahead expeditiously and meets the varied needs of broadcasters, manufacturers and viewers in the United States and around the world."