
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...
27/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/08/2026
PlayBox Neo Stand 7.C29 IBC2026 - 11 14 September
Well-established global specialists in media playout, automation, and streaming solutions, PlayBox Neo ...
27/08/2026
Rise Academy, the broadcast and media skills charity dedicated to delivering practical media technology learning experiences, careers resources and work experie...
27/08/2026
Mediagenix, a global leader in smart content solutions to profitably connect the right content to the right audience, will showcase the latest evolution of its ...
27/08/2026
Screen Australia opens applications for Global Fellowships Program 27 August 2026
Applications are now open for the Screen Australia Global Fellowships progra...
26/08/2026
Applicants interested in the Media Innovation Europe 3.0 Validation Booster call can now consult a new FAQ document addressing practical questions raised during...
26/08/2026
Roku Sports Channel will stream eight matches free beginning Aug. 30 as league shifts Sunday-night games away from Victory+...
26/08/2026
Evertz and Mobile TV Group detail how on-premises infrastructure and cloud resou...
26/08/2026
The Sennheiser Group will demonstrate its broadcast audio portfolio at IBC2026 (Hall 8, Booth D50), covering wireless microphone workflows, studio monitoring, a...
26/08/2026
Appear and Transmisiones Televisivas TVTEL Limitada have announced the deploymen...
26/08/2026
Leader Electronics has announced that Danish broadcast rental company Minitech has purchased a Leader LPX500 hybrid IP/SDI waveform monitor and LT4670 sync puls...
26/08/2026
Encompass will demonstrate its Altitude media services at IBC2026 (IAMT Hub, Diamond Lounge, Hall 3, RAI Amsterdam, September 11-14).
Key products on show incl...
26/08/2026
Daktronics has partnered with Massillon Washington High School in Ohio to install a new LED video display and implement the Daktronics Camino show control platf...
26/08/2026
Clear-Com has appointed Dubai-based Venuetech LLC as its main partner for the Middle East. Venuetech distributes professional audiovisual solutions across the r...
26/08/2026
NBC Sports NOW, NBC Sports' free 24/7 streaming channel, will launch a new weekday lineup beginning Monday, August 31, including two new shows.
Not So Fast...
26/08/2026
Calrec will demonstrate updates to its ImPulseV DSP software and Argo ecosystem at IBC2026 (Stand 8.C47), including previews aligned with the EBU's Dynamic ...
26/08/2026
Imagine Communications will demonstrate AI applications across its ad tech and video infrastructure portfolios at IBC2026 (Stand 1.B73, RAI Amsterdam, September...
26/08/2026
Dalet will demonstrate updates to Dalet Flex, Dalet Pyramid, and Dalia, its agentic AI platform, at IBC2026 (Hall 7, Stand 7.A43). The company will also partici...
26/08/2026
Team-owned platform will stream every locally carried Predators game beginning t...
26/08/2026
The 12-day tournament receives the broadcaster's full onsite-studio presence...
26/08/2026
A synth with no controls?
If you're into weird and wonderful instruments, then you may already be familiar with Warsaw-based SOMA Laboratory - if you...
26/08/2026
Physical modelling orchestral instrument announced
Following their recent cryptic hints, Dreamtonics have officially revealed the latest addition to their s...
26/08/2026
Discussions at the Meitingen site on competitiveness, energy supply, and fuel cell technology
Bertram Brossardt, CEO of the Bavarian metal and electrical emplo...
26/08/2026
Rohde & Schwarz USA celebrates grand opening of new manufacturing center in Fred...
26/08/2026
For large media companies, the content archive is a gold mine. There are thousands of hours of existing, high-value assets just waiting to be tapped for highlig...
26/08/2026
Ad Supported Viewing Represents 71.5% of TV in Q2
Streaming Captures Over 48% o...
26/08/2026
Charity sector ad spend reached $278 million as 44% of Australians donated to ch...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/08/2026
MediaKind today announced that CNBC UK has selected Beam to modernize its contribution and distribution infrastructure, bringing greater flexibility, resilience...
26/08/2026
Telestream, a global leader in media workflow technologies, today announced the next evolution of Telestream UP, expanding the cloud-native platform introduced ...
26/08/2026
SMPTE, the home for media professionals, technologists and engineers, today announced its 2026 Honorees, recognizing individuals and organizations whose contrib...
26/08/2026
New solution bridges connected TV (CTV) and ecommerce to make shoppable performance advertising easier to scale for streaming platforms and broadcasters
Broadp...
26/08/2026
LA JOLLA, CA-Recent advances in robotics, automation and artificial intelligence...
26/08/2026
How WeFX Made From's' Monsters Feel Uncomfortably Real
Brie Clayton August 26, 2026
0 Comments
From eight-foot dolls and feathered birds to R...
26/08/2026
Eleanor Roosevelt High School Elevates Student Rallies with Blackmagic Design
Brie Clayton August 26, 2026
0 Comments
Student led production team uses...
26/08/2026
K-Frame and Maverik X innovations extend familiar production control into AMPP, alongside new replay, audio, commentary and communications capabilities.
At IBC...
26/08/2026
New products continue to enable any signal, anywhere for creators...
26/08/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced a new integrated newsroom experience with Agence France-Presse (A...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/08/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...