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Next-gen multicore DSP platform targets media apps

Posted: 19 Oct 2007     Print Version  Bookmark and Share

Keywords:Internet  multicore DSP platform  media gateway solution 

With multimedia audio and video access over the Internet generating much more traffic as consumers rush to download sites such as YouTube, asynchronous logic specialist Octasic Inc., is aiming to stay ahead of the demand.

Its bid for gaining a stake in this market is Vocallo, its next generation multicore gateway DSP platform for voice, video and data over IP applications.

Vocallo is based on Opus, Octasic's new asynchronous (clockless) logic-based DSP core architecture, which Doug Morrissey, Octasic CTO, claims offers the highest performance-to-power ratio in the industry with a traditional programming model.

"Through its asynchronous design, Opus provides three times more performance per watt than current DSP architectures on the market today," he said. "While the DSP core construction is clock-less, to the programmer it presents a traditional processing model. This is important to allow today's DSP programmers to take full advantage of its capabilities without having to be retrained to re-write and re-partition existing applications."

By comparison, said Morrissey, other architectures that deliver on lower power break the traditional programming model and require a new approach to developing and coding algorithms to achieve the low power benefit.

"Once this large investment is made in re-training programmers and re-writing code, the customer is locked in as all these approaches are proprietary," he said. "One of the strengths of the Opus architecture is that it maintains a traditional programming model preserving customers' investment in applications and skill set. The ability to achieve such low power enables developers to leverage a multicore DSP architecture without re-writing code. "

The Opus kernel and IDE, said Morrissey, provide the tools necessary to quickly develop, test and debug software for this high-performance DSP platform in a predictable fashion.

According to Frederic Bourget, director of product management at Octasic, the Vocallo expandable media gateway solution is also the first DSP platform of its kind to enable a new flexible business model for OEMs designing media gateways.

"This business model enables an OEM to design a cost-reduced gateway to handle today's VoIP needs with licensable performance to accommodate future applications," he said, allowing OEMs to defer the costs of additional performance capacity until they deliver and charge for an application that requires it.

Vocallo's Echo Cancellation and Voice Quality Enhancement (VQE) features use Octasic's carrier-approved algorithms. To maintain voice quality in the latest standards, Morrissey said Vocallo is built on a packet-based software architecture designed from the ground-up to support wideband voice traffic and process media connections with minimum latency.

Vocallo supports emerging network architectures and applications, such as IMS and Fixed Mobile Convergence (FMC). In addition, Vocallo provides support for robust real-time video transcoding, transrating and conferencing.

- Bernard Cole
Embedded.com




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