BCD Audio press announcement
London, 2nd July 2015
Just when you thought you understood 0dBFS and audio levels, along comes somebody who wants to tear up the rule book!.
The arrival of the CD / AES3/EBU format in the 1980s was a pivotal point for the industry, not least because it became a standard across all areas of audio, but also because it is alive and well in the 21st century. During the lifespan of the AES3 format we have seen the available sample rates extended to 96 and 192KHz, but no other extensions in quality. The transport of compressed audio streams was not a step towards better quality, but it did enable multichannel audio to be transported in the bandwidth available from a 48KHz stereo stream, so has found a place in Broadcasting. No further innovations in sound quality have occurred, although the adoption of the AES3 24bit PCM signal into MADI and SDI embedded audio should be seen as a positive step in professional audio and broadcasting generally.
The big weakness of AES3 is the use of 24bit linear PCM rather than something with better dynamic range, given that it is now being used to connect together 32bit or better processing blocks.
Also, a definition of 0dBFS = +18dBU or similar made sense in the days of 16-20bit converters, and continues to make sense for Audio distribution of controlled signals, but is responsible for inadequate overload margin for uncontrolled signals ( from a stage box for example ) , and was increasingly ignored for CD mastering, where the rule is to create a master to 0dBFS with the result that every piece of material has the same peak level, and the listener regularly has to reach for the volume control to set up the desired listening level.
BCD Audio have invented a solution to this level problem, which is based upon a 20bit PCM signal, and a 4bit scale factor. As the total number of bits is the same as AES3, it is transportable with all existing AES3, MADI, Networking and SDI embedded audio links. The 20bit PCM section ensures distortion remains below 0.00008%, and the scale factor allows the dynamic range to be better than 32bit PCM. If adopted properly audio clipping would be consigned to history, and 0dBFS would be an aspiration , rather than a limit!
The main application is in stage box links, digital microphones, and the interconnection of audio equipment in a recording environment, where the added dynamic range and absence of digital clip would transform our industry. There are also 32bit Analogue to Digital, Digital to Analogue and sample rate converter chips coming onto the market, so there is a need to transport at least 32bit linear PCM over existing 24bit digital links.It is not intended to replace 24bit PCM in a controlled level situation, as AES3 with 24bit PCM is perfectly good in this area.
BCD Audio have created a test box that can take in standard AES3 , apply gain , and convert to scaled AES3. We have a version of our AMU that can auto-detect standard or scaled AES3, and pass the signal onto headphones, loudspeakers and a standard AES3 output for measurement. Now gain can applied to a 0dBFS peaking signal, transported with existing 24bit links, and reproduced without clip.
This setup is available for Industry professionals to borrow, and evaluate the sound quality of the architecture, and interested parties are welcome to contact Mike Law at BCD Audio to arrange a demonstration
We have also created a white paper that documents the experiments that were made in late 2014, and this may be downloaded HERE >>
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
13/11/2026
The UIM E1 Series wraps its third season this week with the Bombay Sapphire E1 Miami GP, Nov. 11-14, on Biscayne Bay at the Miami Seaplane Base on Watson Island...
13/11/2026
In-venue and creative video staffers at the professional and collegiate level ha...
13/11/2026
Singer-songwriter Benson Boone will headline entertainment for the Discover NHL Winter Classic between the Utah Mammoth and Colorado Avalanche at Rice-Eccles St...
13/11/2026
Blackmagic Design has announced the Blackmagic Ambisonic Microphone, a 7th order ambisonic microphone array that captures spatial audio for immersive video prod...
13/11/2026
SMPTE has announced that The Studio B&H and Riedel Communications will provide the video infrastructure and communications technology for the Solutions Hub at t...
13/11/2026
The Hollywood Professional Association (HPA) has announced the theme and program focus for the 2027 HPA Tech Retreat, which takes place Feb. 14-18, 2027, in La ...
13/11/2026
Football Manager 27 Touch is available on Apple Arcade starting today. The game ...
13/11/2026
MotoGP has announced a two-year media rights agreement with ESPN covering the Un...
13/11/2026
Apple Sports, the free iPhone app, has added the Ultimate Fighting Championship (UFC) to its lineup of supported sports, in time for Saturday's UFC 334. The...
13/11/2026
The NBA and Fanatics Studios, the joint venture between Fanatics and entertainme...
13/11/2026
ESPN held its annual EDGE Innovation Conference last night and offered up an ove...
13/11/2026
Regional sports network gives Ithaca College, SUNY Cortland students a platform to thrive
One of the biggest games in Division III college football will be pla...
13/11/2026
Studer-inspired 500-series PWM compressor unveiled
The HLabs range already includes a couple of Studer-inspired offerings in the form of the PRE169 and EQ16...
13/11/2026
Download Now!
To view the white paper, please enter the following details:
--
First Name* First Name
Company*
Country* Please select your countryA...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Blue Lucy, the workflow orchestration and integration platform for broadcasters, rights owners and localisation companies, today announced an integration with c...
13/11/2026
Krotos announces Black Friday offers on Studio Pro and Studio Max
Brie Clayton November 12, 2026
0 Comments
First-year annual plans start at US$195.99...
13/11/2026
Blackmagic Design Announces Blackmagic Ambisonic Microphone
Brie Clayton November 12, 2026
0 Comments
New 7th order ambisonic microphone with 108 MEMS...
13/11/2026
Meet the Berklee Student Setting Planetary Motion to Music With his compositional platform SoniKosmos, Javier Roqueni aims to make the universe the ultimate i...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , er...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , er...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Amagi, the media industry cloud company, today announced a partnership with Golden Times Media Technology (stock code 920021.BJ), a Beijing-based media and tech...
13/11/2026
CGI (TSX: GIB.A) (NYSE: GIB), one of the largest independent IT and business consulting services firms in the world, together with its Malaysian partner, Cedar ...
13/11/2026
SMPTE, the home for media professionals, technologists and engineers, today announced that The Studio B&H and Riedel Communications will provide the video infra...
13/11/2026
iWedia, a global leader in connected TV software solutions, will present its software-first approach to DRAM optimization at Android TV APAC Summit 2026 in Bang...
13/11/2026
Beginning today, November 13, Apple HomeView is available for purchase at Apple Store locations, on the Apple Store online, and in the Apple Store app in select...
13/11/2026
From pediatric research to smart hospitals, AI is helping care teams spend less time on routine tasks and more time with patients.
Health systems and startups...
12/11/2026
Industry leaders examine how Dynamic Media Facility, Media eXchange Layer, and c...
12/11/2026
The junior Tar Heel is embracing the technical and creative challenges of live production while emerging as a leader and mentor in the control room...
12/11/2026
Gracenote, Nielsen's content intelligence business, has released its fifth a...
12/11/2026
RTL Deutschland will bring the NHL to free-to-air TV in Germany starting Nov. 30...
12/11/2026
Clear-Com supported On Air 2026, a 24-hour student-led broadcast connecting 45 u...
12/11/2026
uniqFEED has opened a Remote Operations Center (ROC) in Madrid, Spain. It is already operational, delivering virtual advertising for LaLiga matches. The ROC is ...
12/11/2026
Disney, ESPN and the NBA will present Dunk the Halls, the third real-time animated NBA game using Sony's Beyond Sports data visualization technology, on Chr...
12/11/2026
Van Wagner has launched Van Wagner RELAY, a digital platform for official athlet...
12/11/2026
Deal brings together two of the industry's most established graphics brands and significantly expands Vizrt's footprint in U.S. sports and regional broa...
12/11/2026
Euro TV Production GmbH of Austria has upgraded its outside broadcast vehicle with Lawo technology. The mc 36 Classic console in service since 2019 was replaced...
12/11/2026
Tagboard has launched Spark Resize, an AI-assisted tool now in beta that takes an existing graphic and produces a new version for a different aspect ratio or sc...
BCD Audio press announcement
