More than 48 million Americans have hearing loss and rely on closed captions to comprehend TV shows. Others whose native language is not English rely on closed captioning for improved comprehension and fluency.
Telestream Vantage transcoder automates the conversion process from TV captions to SMPTE-complaint Internet captions via watch folders.
To accommodate these groups and others, the U.S. Congress recently passed a new closed captioning law. The new law and FCC rules require broadcasters to caption Internet-distributed video files if the content was broadcast on TV with captions. A March 30, 2014, deadline by the FCC mandates that clips on the Internet must be captioned within 45 days of the programming's television airing.
Repurposing television closed captioning files for the web offers the benefits of obeying the law and reaching a wider audience, but it also presents technical challenges. These challenges can be met more easily when those who must convert TV videos to the Internet have information about the best options.
File Conversion Challenges
Most captioning files for television are created using authoring software designed to work with TV signals in broadcast control rooms, not with Internet protocol (IP) video. As a result, TV caption files may be archived in text file formats that cannot be used with most Internet video players.
Closed caption files for the Internet, on the other hand, can include a variety of different file formats. For example, many developers use timed text markup language, or TTML XML (formerly known as DFXP), for Flash video players. However, Flash video players potentially can support a variety of caption file formats. YouTube's Flash video player supports TTML, for example, but also supports SRT, SCC and WebVTT.
Some Internet caption files are very simple and support only basic features such as timing and line breaks. Other more advanced Internet caption files, such as QuickTime closed caption track WebVTT and SMPTE Timed Text 2052, offer extensive captioning options, including positioning and text animation.
Because of the differences in formats, and also in the content itself, conversion from web to TV can be complicated. In many cases, TV audio or video content may have to be corrected in the following ways prior to Internet deployment:
Segment breaks of five to ten seconds to accommodate commercials may have to be removed.
A video may require separating into parts or combining parts into one video.
Certain music and sounds prohibited by copyright laws from Internet distribution may need to be removed or replaced.
Internet distributors may require original unedited 23.98 fps video without commercials, rather than TV broadcast files at 29.97 fps. As a result, the TV closed caption file created for 29.97 fps will not match the 23.98 fps video timing.
In each case, modifying or deleting elements could desynchronize or delete the captioning data.
Telestream Vantage transcoder automates the conversion process from TV captions to SMPTE-complaint Internet captions via watch folders.
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
06/09/2026
June 9 2026, 23:00 (PDT) Dolby and MagentaTV Bring Fans Closer to the FIFA Worl...
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...
15/06/2026
Detach from Direct-Attached: How Remote Editing with EVO Keeps Creative Teams Mo...
14/06/2026
Library captures 1960s R&B/pop drum sound
Following on from their recent wave of plug-in effects, Iconic Instruments have just launched an all-new virtual d...
14/06/2026
HBO Comedy Rooster Shot with URSA Cine 17K 65
Brie Clayton June 14, 2026
0 Comments
Large format brings viewers intimately close to characters.
Black...
13/06/2026
Latest expansion pack includes 252 presets
Devious Machines have recently introduced another expansion for their powerful multi-effects plug-in, Infiltrator...
13/06/2026
Create custom DAW/plug-in controllers using prompts
MetaGrid have recently introduced an all-new AI Builder function to their touchscreen-based control surf...
13/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
13/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
YES Network and The Gotham Sports App will air seven Athletes Unlimited Softball...
12/06/2026
The United Football League will host its FAST Innovation Suite at the 2026 United Bowl presented by Credit One Bank on Saturday, June 13 at 3:00 p.m. ET at Audi...
12/06/2026
PTZOptics and LayerJot will present live demonstrations at InfoComm 2026 showing how natural-language AI prompting, robotic camera control, and on-device comput...
12/06/2026
MultiDyne Video and Fiber Optic Systems will exhibit at InfoComm 2026, featuring...
12/06/2026
Ateme has announced that Eurovision Services is using Ateme's software-based frame-rate conversion technology for international live event workflows. The de...
12/06/2026
Bitmovin and Simplestream have announced a partnership with Xperi to simplify the launch of OTT streaming services on TiVo OS smart TVs and devices. The collabo...
12/06/2026
Net Insight has announced that a multinational technology company is deploying a...
12/06/2026
MLB Players Inc., the business arm of the MLB Players Association, has announced a partnership with Athletes First to develop and sell brand partnerships across...
12/06/2026
Guntermann and Drunck (G&D) and VuWall have announced the CommandKeyboard-Advanc...
12/06/2026
Comcast Smart Solutions announces a new smart technology deployment with Major L...
12/06/2026
Elevation Worship completed the initial leg of its Elevation Nights 2026 tour ...
12/06/2026
AJA Video Systems has announced KONA IP25 support for Colorfront Transkoder and ...
12/06/2026
Audinate Group Limited (ASX: AD8) will exhibit at InfoComm 2026 (Booth C7321, Ce...
12/06/2026
Pac-12 Commissioner Teresa Gould has announced the appointment of Scott Adametz as Chief Technology Officer. The Pac-12 describes the hire as the first CTO appo...
12/06/2026
Grass Valley has announced AMPP Edge Live, a production system combining Grass Valley hardware, NVIDIA Blackwell GPU acceleration, and AMPP OS in a single platf...
12/06/2026
At one time a trailblazer with the launch of the Longhorn Network, the Universit...
12/06/2026
Ratings Roundup is a rundown of recent rating news and is derived from press rel...
12/06/2026
Chyron has announced PAINT 10.4, an update to its illustrated replay and sports ...
12/06/2026
SVP, Production, Mark Gross: With the new schedule, with not having every Sunday night, it has given us an opportunity to take a step back and reimagine what o...
12/06/2026
For Televisa Technical Engineering Manager Roberto N nez Ibarra and the small team of 12 technicians and two production personnel at the IBC things are already ...
12/06/2026
Simple Steps to Better Acoustics - Taming The Small Room
Most of us mix in spare rooms and small spaces, where the acoustics fight us at every turn. At Gear...
12/06/2026
Latest addition expands vintage-inspired effects palette
Meris' Ottobit pedal range draws its inspiration from vintage gaming consoles, and the latest a...
12/06/2026
Soundbox-based chamber strings series expanded
Sonora Cinematic have just announced the launch of the second instalment in their Soundbox-based chamber stri...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
AJA Announces KONA IP25 Integration with Colorfront Software
Brie Clayton June 12, 2026
0 Comments
Collaboration enables uncompressed SMPTE ST 2110 I/O ...
12/06/2026
URSA Cine 12K LF Used to Create Visuals for STUTS' K-Arena Concert
Brie Clayton June 12, 2026
0 Comments
Organic visuals projected on a giant scre...
12/06/2026
MTI FILM Acquires Mango New Edit, Expanding its Global Post-Production Services ...
12/06/2026
AI Point Tracking Speeds Up Complex VFX Tracks in Mocha Pro
Jessie Electa Petrov June 12, 2026
0 Comments
The 2026.5 release adds automatic point trac...
12/06/2026
Bitmovin, a provider of video streaming solutions, has partnered with Simplestream, a provider of OTT and broadcast solutions, and technology provider Xperi, to...
12/06/2026
Leostream Corporation, creator of the world-leading Leostream Remote Desktop Access Platform, today announced Jigsaw24, a leading B2B IT solutions provider wit...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/06/2026
How Aussie indie games and screen are levelling up with IP 11 June 2026
Ari Harrison, Pro Jank Footy
Head of Games Joey Egger and Ari Harrison of Umbrella sha...
12/06/2026
AgentPerf from Artificial Analysis, the industry's first agentic AI benchmark, gives developers, enterprises and infrastructure providers a clear way to com...
More than 48 million Americans have hearing loss and rely on closed captions to comprehend TV shows. Others whose native language is not English rely on closed captioning for improved comprehension and fluency. 
