Own a Linear Acoustic product and wondering if you are compliant with the updated regulation? The simple answer: You are!
For a more in-depth explanation of the new regulations and product-specific details, please click on the Continue Reading link below.
The ATSC has recently updated and delivered to the FCC an updated version of its A/85 Recommended Practice - aka Techniques for Establishing and Maintaining Audio Loudness for Digital Television - which includes an update of the referenced ITU (International Telecommunications Union) recommendation for algorithms to measure audio program loudness and true-peak audio level.
Since the CALM (Commercial Advertisement Loudness Mitigation) legislation is based upon A/85, whenever A/85 is updated, CALM follows automatically.
This has left television broadcasters wondering what influence the new recommendations will have on them and whether or not their current processing and metering equipment is capable (or can be updated to become capable) of complying.
It is important to understand that these changes affect loudness metering and measurement, NOT loudness processing.
It is also helpful to understand that the difference between the original ITU-R BS.1770-1 and -2 involves the refinement of gated measurements and the inclusion of a technique called relative gating. Relative gating means that gating will occur at low audio levels which change relative to the average audio levels. You will sometimes hear -1 referred to as fixed gating and -2 as relative gating accordingly.
ITU-R BS.1770-3 introduced a change that removes a filtering option that was present in the -2 standard. Linear Acoustic products have never employed this optional filter, and so this change (with one exception - please see the detailed information on the LQ-1000 Loudness Quality Monitor below) does not impact our customers.
We strongly recommend that all television broadcasters become familiar with A/85:2013 which is available for download directly from the ATSC website via this link: http://www.atsc.org/cms/standards/A_85-2013.pdf
Specific Linear Acoustic product information is provided below.
AERO Series Processors Since the new recommendations pertain to loudness measurement and not to loudness processing per se, any past or current Linear Acoustic processor is capable of delivering compliant audio if properly installed and configured. This includes all OCTiMAX , AEROMAX , AERO.one , AERO.air , AERO.lite , AERO.100 , AERO.2000 , and AERO.1000 products and will apply to future products as well.
While the processors themselves can all provide compliant audio, some have built-in ITU-R BS.1770 utility meters. These meters are not intended to be a substitute for a dedicated LKFS meter capable of monitoring demodulated audio or generating loudness logs. Rather, they are provided to make matching the final output level of the processor to the dialnorm quick and easy, which, when done properly, results in compliant audio.
The meters included in AERO.100, AERO.1000, and AERO.2000 are ITU-R BS.1770-3 compliant.
The optional meter in AERO.lite and the utility meter on the Final Stage adjustment screen of AERO.air products are short term (10-second) integrated meters and produce results that match BS.1770-2/3 meters within required tolerance, but do not contain Peak or True Peak meters and thus are not affected.
LQ-1000 Loudness Quality Monitor The LQ-1000 Loudness Quality Monitor is (or can be easily made to be) fully ITU-R BS.1770-3 compliant.
LQ-1000 products with serial numbers below 34-1000 must up updated to software version 1.10.12 in order to be -3 compliant. This is a free update for registered users of our website. If you need the software and are not yet a registered user, please click on the Register button at the top of the home page.
Units with serial numbers of 34-1000 and higher are already compliant and need no additional updates.
LQ-1 Loudness Meter All LQ-1 units are fully ITU-R BS.1770-3 compliant. No additional updates are needed.
For the reasons explained in detail earlier, selecting an ITU.R BS-1770-2 measurement in the LQ-1 will result in a measurement that is also -3 compliant. Since Dolby Dialogue Intelligence is recognized as an acceptable means of measurement in the latest version of ATSC A/85, it too is inherently CALM-compliant should you choose to employ it.
LAMBDA and LAMBDA-II Digital Audio and Metadata Monitor The LAMBDA and LAMBDA-II are short term (10-second) integrated meters and produce results that match BS.1770-2/3 meters within required tolerance, but do not contain Peak or True Peak meters and thus are not affected.
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
07/10/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...
06/09/2026
June 9 2026, 23:00 (PDT) Dolby and MagentaTV Bring Fans Closer to the FIFA Worl...
20/08/2026
Multiview available via SaaS for streaming platforms and operators through broadpeak.io, with live demonstrations at IBC2026
Broadpeak , a leader in streaming ...
20/08/2026
Techex, a leading provider of live broadcast infrastructure solutions, has appointed Stuart Almond as Chief Revenue Officer, further strengthening its executive...
20/08/2026
Avid today announced that MediaCity Studios has upgraded its production infrastructure with an enhanced end-to-end Avid production ecosystem, including the dep...
20/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
20/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
20/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
20/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
20/08/2026
IPC Expands Brazilian Presence with New Channel Partner CCATech
Industry veterans Carlos Abrah o and Bruno Lopes strengthen local support and expand IPCs prese...
20/08/2026
Zixi Enters Mauritius Market Through Strategic Deployment with MTC Jockey Club
Worlds Oldest Horse Racing Club in the Southern Hemisphere Selects Zixis Softwar...
20/08/2026
LA JOLLA, CA-Scripps Research assistant professor Tiantian Liu has received a five-year NIAID DP2 award from the National Institute of Allergy and Infectious Di...
20/08/2026
Audiences reveal appetite for multicultural Australia on-screen 20 August 2026
Dr Georgie McClean, Dr Rebecca Huntley (L-R)
By Dr Georgie McClean and Dr Rebec...
20/08/2026
How Mavis Studio Is Expanding Live Production Teaching at Sussex
Brie Clayton August 19, 2026
0 Comments
Hero image displays a student about to mix be...
20/08/2026
Vertical Unscripted Series Legal Queens Captured with Blackmagic Design
Brie Clayton August 19, 2026
0 Comments
Reality TV veteran Eric Gardner create...
20/08/2026
It's a new way into the cloud.
GeForce NOW welcomes Firefox support to the cloud, opening up another way to jump into high-performance PC gaming straight ...
19/08/2026
As the cost of IP nears price parity with traditional SDI, Reynolds argues that ...
19/08/2026
A private 5G bubble was chosen instead of traditional broadcast RF for the race ...
19/08/2026
(L-R) Rafael Manuel and Isabel Sicat attend the Filipi ana premiere during the 2026 Sundance Film Festival at The Ray Theatre on January 23, 2026, in Park Cit...
19/08/2026
Studio owners invited to have their say on rates cuts
The Music Producers Guild (MPG) are inviting UK-based studios to take part in an in-depth survey that ...
19/08/2026
Vintage-inspired desktop interface revealed
Harrison's latest hardware offering sees them head into the world of audio interfaces, delivering a 10-in/12...
19/08/2026
Granular effect remains locked to scale and tempo
Described as your dream granular effect , Minimal Audio's latest creation is capable of turning any s...
19/08/2026
First polyphonic SWAM instrument incoming
Audio Modeling's latest physical-modelling orchestral instrument is just around the corner, and is now availab...
19/08/2026
World Cup Games Generate 84 Billion Minutes Across FOX, Fox Sports 1 and NBCU...
19/08/2026
July brought typical peak-holiday drops in viewership, driven primarily by viewers stepping away from screens and a visible decline in reach across both traditi...
19/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
19/08/2026
Henry joins BCE as the company accelerates its commercial strategy and expands its international presence across the media, broadcast and technology markets. He...
19/08/2026
iWedia, a leading provider of software solutions for connected TV devices, today announced a major milestone in Android platform optimization with the successfu...
19/08/2026
NTP Technology announces that ST 2110-30 audio-over-IP connectivity with AES67 and RAVENNA capabilities is now available for the brand's world-class audio i...
19/08/2026
Net Insight has been selected to provide its Nimbra platform by the service provider Big Blue Marble, formerly ORS Group, as the core media transport solution f...
19/08/2026
LiveU has supported Coventry City FC and several other top-flight UK football clubs through one of their most demanding live production challenges of the year, ...
19/08/2026
Nature Seekers Documentary Shot with Blackmagic URSA Cine 12K LF
Brie Clayton August 18, 2026
0 Comments
Filming endangered turtles required camera...
19/08/2026
Neyrinck Brings D-Control Consoles Back to Life on Apple Silicon with D-Control ...
19/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
19/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
19/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
19/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
19/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
19/08/2026
Riedel Communications today announced that Edith Cowan University (ECU) in Perth, Australia, implemented a comprehensive communications infrastructure that brin...
19/08/2026
QuickLink, a leading provider of award-winning video production and remote guest contribution solutions, will spotlight a major leap forward in remote guest con...
19/08/2026
Integrated platform melds media asset management, playout automation and newsroom workflows
EMAM, PlayBox Neo and SNEWS have officially launched Nuvex, a conne...
19/08/2026
Screen Australia releases the Private Investment Toolkit to strengthen screen in...
19/08/2026
Do Aussies truly value local content? Unpacking Screen Currency 2026 with Deirdr...
19/08/2026
There's an early Christmas gift for Bookish fans, as UKTV confirms the re-commission of the hit U&alibi drama, created by and starring Mark Gatiss. Viewers ...
19/08/2026
Wednesday 19 August 2026
Sky gives sports fans the chance to watch multiple liv...
19/08/2026
On Saturday September 5 Katie Taylor will step into the ring for the fight of her life against Flora Pili in front of 80,000 fans in Croke Park. A legendary fig...
18/08/2026
SportStream 2026, a free three-day virtual event, will take place September 15-17. One registration provides access to all three days of live programming and on...
18/08/2026
BeckTV will introduce BeckFlow to the European market at IBC2026, demonstrated on the Providius stand (10.F53).
BeckFlow is a web-based schematic documentation...
Own a Linear Acoustic product and wondering if you are compliant with the updated regulation? The simple answer: You are!
