The ProMedia Xpress high-performance file-based transcoder from Harmonic Inc. uses the company’s H.264 codec technology to deliver better video quality without impeding transcoding speeds.

“Facilitating cost-effective, faster-than-real-time transcoding of broadcast-quality content for multiscreen VOD delivery to mobile devices, PCs and connected TVs, ProMedia Xpress allows operators and media companies to launch new services efficiently without compromising on the quality of their offering,” Harmonic says.

ProMedia Xpress uses Harmonic’s new MicroGrid parallel-computing technology for transcoding. By using all available processor-core capacity, the company says ProMedia Xpress can scale to provide transcoding without custom computing hardware.

"Service providers and content owners must not only deliver VOD content to consumers’ PCs, connected TVs, and mobile devices within a tight timeframe, but also meet specific performance requirements for each adaptive streaming format used," notes Moore Macauley, senior director/Multiscreen Product Line Management.

When combined with the ProMedia Package stream packager, Harmonic says ProMedia Xpress allows multirate H.264 assets to be encapsulated for such target ecosystems as Apple HTTP Live Streaming, Microsoft Smooth Streaming, Adobe HTTP Dynamic Streaming and MPEG-DASH.

“Because ProMedia Xpress and Package separate the transcoding and packaging processes, users can transcode an asset once and package it multiple times, thereby reducing repetitive processor-intensive tasks and easing the need to accommodate changing delivery standards and protocols,” Harmonic explains. “In addition, tight integration between ProMedia Xpress and Harmonic’s Omneon MediaGrid shared storage system allows content to be stored and accessed on the network at high speed, eliminating the latency associated with copying content to the transcode nodes before transcoding and instantly making available transcoded content for downstream operations such as QC, distribution, delivery or archive.”

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