Dalet Digital Media Systems has supplied and integrated an end-to-end workflow for CPAC's (Cable Public Affairs Channel) English and French closed captioning. The solution combines the strength of Dalet AmberFin and Dalet Galaxy to provide an advanced automated workflow that maintains genealogy and captioning data for the 24/7 operation.
Based in Ottawa, CPAC is Canada's only privately-owned, not-for-profit, bilingual television service providing a commercial-free window on Parliament, politics, and public affairs. Through its unique style of balanced, long-form coverage of the people, politics, and events shaping public policy, CPAC facilitates and fosters participation in the Canadian democratic process. CPAC is delivered by cable, satellite, and wireless distributors to more than 11 million homes in Canada and worldwide via 24/7 web streaming on the CPAC TV 2 GO mobile app and the www.cpac.ca website. The organization ingests up to 80 hours of new content daily and has made over 30,000 hours of archived content available on these digital platforms.
We urgently needed a closed captioning solution that could manage a variety of content from several different types of production workflows: news and magazine-style shows, live and studio production, and long-form programming. For each of these workflows we needed to be able to manage, and more importantly maintain caption data, especially after editing has been completed or the content is passing through another system, says Eitan Weisz, senior manager of broadcast operations, CPAC. Those are all facets that we felt Dalet could deliver for us in one package.
The solution devised by Dalet in concert with CPAC deploys Dalet AmberFin as an advanced media and processing platform for insertion and extraction of caption data, leveraging the existing Dalet Media Asset Management (MAM) deployment to manage transformation and distribution in an end-to-end media workflow with a key emphasis on maintaining captions as metadata.
During live shows or events, CPAC content is transcribed by operators using keyboard or stenography methods to generate live captions. Live feeds with captions are ingested into Harmonic and Dalet Brio video servers and written to an MXF file including a standard SMPTE ST436 data track. For preproduced content, a proxy file is sent to an external captioning house for transcribing and generation of a separate caption file.
Where the Dalet MAM detects valid ST436 data, Dalet AmberFin automatically extracts the caption information to a standard SCC caption file, associated with the relevant video file in the MAM. Also automatically generated is TTML (Timed Text Markup Language), a standardized XML structure that represents all the captioning information as time-coded metadata that can easily be catalogued, searched and modified.
The TTML pivot format is vital. Instead of keeping the information at file level, we expose it as timed metadata to the user so that they can directly view and search it as well as perform basic editing and correction of the caption information, explains Dalet Sales Director Frederic Roux. CPAC has rich automated metadata created in the Dalet system and tagged to all its content through this captioning process.
In the other production scenario at CPAC, when an SCC file is received from the captioning house, Dalet will instantly match it with the video file and then perform the same workflow: transforming the SCC file into searchable, viewable, useable data.
A common and expensive error in closed captioning workflows is the risk of losing captioning data during the production process, explains Roux. Editing can destroy the captioning information at file level and require the user to recapture or recreate the original material, which is time-consuming and costly.
Retaining caption data during the production process is integral to the Dalet end-to-end workflow. As Dalet maintains the genealogy of all produced content, the Dalet MAM automatically associates the corresponding caption metadata from the various pieces of production content to the final package created by the NLE. The final new asset then inherits the captions of the original material.
Distribution is also managed by Dalet at CPAC. For linear playout, Dalet uses the metadata caption information or the SCC file with associated video to re-embed the captions in the media file within the ST436 data track. Options exist for managing the captioning separately as a side car file. Should there not be an SCC file, Dalet will automatically regenerate it based on the timed text metadata.
For distribution to VOD, Web or mobile platforms, the text will be rendered automatically into a TTML file, the most suitable web format.
With this automated system we can prepare a video file for broadcast and for all non-linear distribution complete with captioning information in both French and English languages and in full confidence that metadata will be preserved, says Weisz.
The closed-caption system is the latest evolution of CPAC's relationship with Dalet dating back to 2009. The partnership began when CPAC began digitizing its legacy tape content and selected Dalet as a front end MAM to catalogue its new online archive. A year later, CPAC and Dalet built a full MAM workflow to manage and control the client's long-form programming all the way to air. The next step, in 2011, was to design, install and execute a newsroom computer system for all CPAC's news output based on the comprehensive set of Dalet tools for news production.
The longstanding relationship we have enjoyed with CPAC is a testimony not only to the confidence they have in our technologies and services, but also to the unique way in which Dalet can grow with a customer as its needs change and grow, says Roux. We congratulate CPAC on its successful missi
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
04/08/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
04/07/2026
April 7 2026, 19:00 (PDT) Detective Conan: Fallen Angel of the Highway Opens in...
01/06/2026
January 6 2026, 05:30 (PST) Dolby Sets the New Standard for Premium Entertainment at CES 2026
Throughout the week, Dolby brings to life the latest innovatio...
06/05/2026
Polands Miecznik-class frigates are part of the largest contract in Polish shipbuilding history. (Image Credit: PGZ Stocznia Wojenna)...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
Riedel Communications today announced the expansion of its leadership structure as part of a strategic initiative to strengthen both its operational management ...
06/05/2026
For nearly three decades, Veteran Production Sound Mixer and Five-time Emmy Award Winner Dirk Sciarrotta has helped define the sonic identity of the long-runnin...
06/05/2026
ZEISS CinCraft LensCore: Cinema Lens Looks for Compositing
Brie Clayton May 6, 2026
0 Comments
ZEISS announces the launch of CinCraft LensCore, a nove...
06/05/2026
Wisycom Solves Extreme RF Challenges Across Miles of Live Action for Gravity Med...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
Narrative Entertainment has partnered with Encompass to deliver high-quality subtitling of its Great! network content using the Altitude Intelligence AI assiste...
06/05/2026
SipRadius, widely recognized for making content processing and connectivity secure and seamless, is proud to launch a dramatic new approach to AI content creati...
06/05/2026
When the broadband and media industry gathers at ANGA COM in Cologne from May 19 to 21, Big Blue Marble will be at the forefront. The international broadcast an...
06/05/2026
Cinegy GmbH, a leading developer of software-defined television technology, is proud to exhibit at MPTS for the first time. Visitors to the stand will discover ...
06/05/2026
Val Jeanty Receives 2026 Doris Duke Artist Award Jeanty, a composer, percussionist, and turntablist, is the fourth Berklee recipient of the prestigious award ...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
06/05/2026
When live cycling races and international marathons stretch for miles across cities and countryside, there is no margin for RF failure in live broadcast. As Chi...
06/05/2026
Oberkochen/Germany, May 5, 2026
ZEISS announces the launch of CinCraft LensCore, a novel solution for creating physically based cinematic lens looks for visual...
06/05/2026
SAN JOSE, Calif. - May 6, 2026 - Harmonic (NASDAQ: HLIT) today announced its latest broadband innovations for ANGA COM 2026, highlighting its vision for a new e...
06/05/2026
Statement from Rupert Murdoch, Chairman Emeritus, Fox Corporation on Ted Turner&...
06/05/2026
Friday 8 May on RT One and RT Player
Meet the NSPCA team caring for and protecting animals in need in this six-part series
Fly on the wall, six-part series...
06/05/2026
The race to build the world's most powerful AI factories demands networking ...
06/05/2026
How changes to proteins can alter drug interactions for new precision therapies Scripps Research team maps how chemical modifications to proteins affect drug bi...
05/05/2026
Experts from the world of academia, tech, business, politics and media convened for a Thomson Talks at the Cambridge Disinformation Summit in April. It's th...
05/05/2026
Three phones were hardwired for power and transmission to the truck; camera feat...
05/05/2026
The creative studio behind campaigns for the NBA, Fanatics Sportsbook & Casino, ...
05/05/2026
Nielsen has announced results from a co-viewing pilot program covering February&...
05/05/2026
viztrick AiDi, an on-device AI solution developed by Nippon TV, delivered global...
05/05/2026
ARRI has announced Omnibar, a battery-powered, IP65-rated multi-color LED linear...
05/05/2026
Imagine Communications has announced that France T l visions is the first broadc...
05/05/2026
The Women's National Basketball Association (WNBA) and Bell Media today announced a multiyear agreement to broadcast and stream WNBA games in Canada beginni...
05/05/2026
SVG is proud to announce Warner Bros. Discovery's Techwood Studios in Atlant...
05/05/2026
With no operator required, AutoMic workflow automates talent identification on U...
05/05/2026
A crash in 2015 set the industry back, but this winter proved that drones are he...
05/05/2026
Another year, and more proof that Asia continues to shape some of the world's most exciting new sounds. This year's RADAR artists draw from deep local r...
05/05/2026
The Austin City Limits Music Fest 2026 lineup just dropped, and this year, Spoti...
05/05/2026
New drum machine book campaign incoming
Bjooks have announced that during Superbooth 2026, they will be launching a Kickstarter campaign to fund the product...
05/05/2026
Flagship all-in-one production bundle updated
The latest version of Native Instruments' flagship virtual instrument and plug-in bundle has just been ann...
05/05/2026
Rohde & Schwarz to host RF Testing Innovations Forum 2026, helping design engine...
05/05/2026
L3Harris provides communications, electronic warfare, sensors and mission systems that enable Virginia-class submarine crews to operate with confidence in conte...
05/05/2026
The company grew by 7.6% in net revenue and 16.3% in EBITDA, achieving a 33% inc...
05/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
05/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
Dalet Digital Media Systems has supplied and integrated an end-to-end workflow for CPAC's (Cable Public Affairs Channel) English and French closed captioning. The solution combines the strength of Dalet AmberFin and Dalet Galaxy to provide an advanced automated workflow that maintains genealogy and captioning data for the 24/7 operation.
