Digital Nirvana Unveils Caption Quality Check

Caption Quality Check provides a flexible, automated, and customized workflow that enables customers to submit and receive content in file formats that best suit their business needs, and to output the highest-quality content in a variety of formats and to a wide range of delivery platforms.

“Not long ago, publishing content was a much simpler proposition: one channel, one audience. Today, it’s a lot more complicated — content has to live in a broad online ecosystem that includes OTT, social media, and other internet-based outlets in addition to traditional broadcast channels. Adding to the challenges, captioning is becoming a mandatory legal requirement across the globe,” said Hiren Hindocha, co-founder, president, and CEO of Digital Nirvana. “Designed with content producers in mind, Caption Quality Check helps public and private organizations ensure that their video assets are captioned correctly, not only for compliance but to improve user engagement, optimize search responses, and organize content within archives.”

With the rise in streaming media consumption, broadcasters must be able to provide high-quality, closed-captioned content that integrates seamlessly with each different streaming platform, and to do so in a way that ensures content security. The technical challenges are daunting, since each of these platforms has a different workflow. Requirements for caption file formats vary widely from platform to platform, and it’s not uncommon to encounter caption synchronization issues and other production problems with captioned content.

Caption Quality Check addresses these challenges by enabling broadcasters to repurpose content across multiple platforms without having to develop individual versions for each, while ensuring that content is compliant and accessible. The solution provides a simplified, automated, and customized workflow that allows customers to automate their requests and work-order assignments for maximum productivity and a better overall user experience. Users can choose from a combination of automatic and manual services to ensure premium-quality output and receive publish-ready captions in the formats required by various OTT and VOD distribution platforms.

Caption Quality Check accepts a wide variety of file formats as inputs, including SCC, SRT, EBU-STL, WebVTT, SMPTE-TT, and JSON. Once customers upload their captioned content to the Caption Quality Check portal, the service automatically compares video to text using a combination of video intelligence technologies and analytics software. The service checks the content by using speech-to-text technology to sync caption text with the audio and video.

Once syncing is complete, Caption Quality Check performs additional quality checks including scanning and verifying multiple format and frame-rate conversions. The system ensures the accuracy of text frame duration and identifies illegal characters, and immediately notifies content providers when captions are improperly positioned, go out of sync, or exceed or fall short of character limitations. Then, the content is sent to the QC team for a final review to ensure that the output delivered to customers is of premium quality and in the correct format.

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CCTV Delivers Vivid UHD Television Experiences with Harmonic

By simplifying the delivery of UHD channels for CCTV, Harmonic enables a more vivid television experience for more than a billion viewers.


“As more and more consumers purchase UHD TV sets, it’s important that we satisfy the demand for higher resolution content,” said Song Wei, director of broadcast department II,Broadcast and Transmission Center at CCTV. “After using Harmonic’s media servers for years, we knew it would provide the reliability, workflow simplicity and operational savings needed to successfully launch our UHD channels.”

Harmonic’s market-leading Spectrum™ X media server is renowned for reducing the complexity of broadcast workflows by merging multiple capabilities, such as file, baseband, and transport stream ingest, with integrated channel playout. Relying on the modernized, software-based playout solution, which supports both SDI and IP environments, CCTV is able to deliver UHD content with the utmost efficiency and quality. Combined with Harmonic’s Spectrum MediaCenter storage, the solution also provides CCTV with reliable file system and communication management.

“As one of the biggest broadcasters in Asia Pacific, CCTV is at the forefront of innovation by testing new technologies, and this deployment is a great example of its commitment to bringing outstanding video experiences to viewers,” said Tony Berthaud, vice president of sales and services, APAC, at Harmonic. “Harmonic’s Spectrum X media servers are driving the industry transition to UHD architectures through playout flexibility and rock-solid reliability.”

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