A few weeks ago, Cedar Point - alert () is a bit vague communication News announced its "Enhanced HD Voice provides materials developed for its Safari C3. As the old commercial Wendy, I wondered: "Where's the beef?"
A follow-up interview with Cedar Point clarified exactly what was going on its new software and provided more information about a new feature or service that we expect to see others in the ecosystem of telephony HD - upconversion of standard PSTN quality.
At first glance upconversion looks a little shell game. Samples PSTN to an area of 8 KKZ, leaving you with the data, you're stuck.
However, if you have the right algorithms, you can interpret and model, what is said about a level of PSTN call - in the center of his "voice" - and then add a little low band and high band at the end -the-fly before delivery of the change - ie "unconverted" - media streams to HD endpoint phone on the other end.
Before crying Upconverting has on the world of consumer video for years, "unproven technology", you can also have used last night. For video, DVD upscaling DVD player to take a share 480i media stream and massage is a bit better on an HDTV at 702p, 1080i or 1080p.
The "magic" here to do this in a voice call is twofold. First, you need a model song must be properly interpreted, does not work with music than words. Second, you have to handle to power DSP media stream on the fly "have, it is not trivial, but it is a natural extension of the echo and noise reduction.
Cedar Point says that its new HDUPconversion announced (a trademarked term) product provides an end result, the "def certainly not as good as high quality, but" to a narrow band call from a first endpoint HD phone. The company estimates HDUPconversion make the HD-call much more attractive to customers because they are of better quality incoming voice, whatever the call comes, whether narrowband PSTN, VoIP or other telephony endpoint HD.
allow a bridge between the PSTN and voice quality is crucial for HD customers voice service HD, "said Cedar Point. About 90 percent of calls being processed by a type cable operators PSTN at one end and HD voice on the other, while only 1 percent of HD voice, HD Voice, another 9 percent HD voice at one end and narrowband VoIP On-net (ie the endpoint is not supported or not HD/G.722 end IP phone is properly configured), said Cedar Point.
Cedar Point roller HDUPconversion a bundle for the Safari C3 (News - Alert), and a number of other attachments for a high service call, including full 2.0 and IMS-compatible HD-conference PacketCable CALEA and 911. support service providers bundle just buy the software and put it in / on their hardware safari.
Another point worth considering - is Cedar Point Props its current offer DSP revealed working with the company making work HDUPconversion. A joint announcement with the DSP provider should "soon".
Doug Mohney, space is an editor for TMCnet and a 20-year veteran of the ICT. For more of his articles, please visit the columnist.
Editor Patrick Barnard
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