Tieline To Demonstrate QoS Performance Engine Technology at NAB

Leading audio codec manufacturer Tieline Technology will demonstrate its new QoS (Quality of Service) 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 - at NAB 2008.
Darren Levy, Tieline's International Marketing Manager, said: "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."
The internet and 3G wireless networks are lossy packet-switched networks in which a percentage of data packets sent never arrive, Tieline said.
Neil Morrish, Tieline's Research and Development Manager, said: "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.
"Over 3G networks this figure is likely to increase at times to between three and ten percent of packets sent."
Tieline said that broadcasters working in a remote broadcast situation were unable to buy QoS for wireless 3G networks, and it is often impractical to buy QoS for a single remote broadcast over the internet. The company said that its QoS Performance Engine Technology solution provides reliable managed audio over these networks.
Mr Levy said: "Ina perfect world, we would recommend using QoS data connections everywhere. 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."
He continued: "Our new IP QoS Performance Engine automatically manages the IP connection. 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 a 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."
Mr Morrish added: "Tieline offers a very robust and fit-for-purpose solution for remote broadcasting. 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."
Tieline Technology is one the leading supplier's of high-quality remote broadcast digital audio codecs. The company is supported by a global distribution network spanning the Americas, Europe, UK, Africa, Asia, Middle East and Australasia.
(KMcA/JM)