Tieline Technologies

QoS Performance Engine Technology

Apr 15, 2008

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NAB, April 2008- Leading audio codec manufacturer Tieline Technology will demonstrate its new QoS Performance Engine Technology over IP for its G3 range of audio codecs -which provides greater connection stability, with less delay, for live remote broadcasts over IP networks.

"Tieline set the standard for audio stability over analog POTS networks and this expertise has evolved to provide superior connection stability over IP networks, including the Internet and wireless 3G broadband networks," said Darren Levy, Tieline's International Marketing Manager.

The Internet and 3G wireless networks are lossy packet-switched networks in which a percentage of data packets sent never arrive. "It's not unreasonable to expect that between one and three percent of packets sent will be lost at different times over open Internet IP connections," said Neil Morrish, Tieline's Research and Development Manager. "Over 3G networks this figure is likely to increase at times to between three and ten percent of packets sent."

In a remote broadcast situation broadcasters are unable to buy QoS (Quality of Service) for wireless 3G networks, and it is often impractical to buy QoS for a single remote broadcast over the internet, Tieline has developed a QoS Performance Engine Technology solution that provides reliable managed audio over these networks.

"In a perfect world we would recommend using QoS data connections everywhere," said Levy. "Unfortunately we don't live in a perfect world and broadcasters want the flexibility of connecting anywhere in varying IP network conditions. Tieline's QoS Performance Engine Technology makes it possible to achieve QoS results using standard IP and 3GIP Internet connections for remote broadcasts."

"Our new IP QoS Performance Engine automatically manages the IP connection," said Levy. "It dynamically adjusts settings in the codec to allow for varying packet arrival times as well as providing multi-strategy Forward Error Correction (FEC) analysis, which replaces lost or corrupted packets in a data stream. Tieline G3 codecs are able to react intuitively to variations in packet-switched network conditions and virtually guarantee a solid connection. It certainly takes the guesswork out of understanding how to make a successful IP connection."

"Tieline offers a very robust and fit-for-purpose solution for remote broadcasting," said Neil Morrish. "Our low delay and loss tolerant Music and MusicPlus algorithms use advanced compression techniques, making them particularly suitable for lossy networks like the Internet. By using state of the art IP stream management and advanced error concealment and repair strategies, we have proven that Tieline codecs can connect very reliably without having QoS."

"Combined with Tieline's automatic connection software, these stability software management strategies make using the G3 range of audio codecs simple and user-friendly," said Levy. "It means that radio talent can simply get on with delivering superb quality content without having an engineer around to get connected and monitor IP network congestion," said Levy.

About Tieline Technology
Tieline Technology (http://www.tieline.com/) is the world's leading supplier of high-quality remote broadcast digital audio codecs. In fact, Tieline derives its name from the popularity of its award-winning codec line as the company changed its corporate moniker in 2001 from Audio Video Communications (AVC) to Tieline Technology. Tieline Technology today is supported by a global distribution network spanning the Americas, Europe, UK, Africa, Asia, Middle East and Australasia.

Tieline Technology, Tieline Technology logo, Commander G3, i-Mix G3 are trademarks of Tieline Technology. Other trademarks may be property of their respective owners.

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