New Telos Multi-Channel IP Codec Debuts at IBC

Zephyr iPort can transport 8 stereo channels over QOS-guaranteed IP links

07 August 2007, Cleveland Ohio, USA

Visitors to IBC 2007 in Amsterdam will be able to see a dramatically new addition to the Telos Systems
Zephyr family of broadcast codecs: The Zephyr iPort MPEG Gateway, a new codec that can transport up to
8 channels of bi-directional stereo audio between locations, using Quality-of-Service (QoS) guaranteed IP
networks.

“Just as ISDN revolutionized broadcasting ten years ago, IP networks will take them to the next level,” says
Telos CEO and founder Steve Church. “More and more, broadcasters rely not only on content generated at
local studios, but a mix of programming both local and external. Zephyr iPort provides a simple, efficient
way to share multiple channels of low-delay, broadcast-quality audio between distant facilities, using IP
networks.”

Zephyr iPort is equipped with a LivewireTM interface; when used as part of an IP-Audio network, iPort
transports 8 channels of stereo audio plus control between two Livewire-equipped sites over an IP link.
Connecting iPort to a Livewire network is easy: a single Ethernet cable is all that’s required; no need for
expensive converters, interfaces or connectors. For standalone use outside a network, Zephyr iPort can be
paired with an Axia Audio AES/EBU or Analog Audio Node for studio-quality audio I/O.

The technology in Zephyr iPort might just make it the most user-friendly broadcast codec ever. Livewire
networks continuously “advertise” the presence of active audio sources, so the network knows when
sources are available; iPort takes advantage of this source advertising so that whenever a codec connection
is established, it appears instantly on the network. All the board-op at the console needs to do is assign the
codec source to a fader, and audio automatically flows both ways.

Zephyr iPort can also be used for any application where MPEG encoding and/or decoding are needed for
transmission over IP channels, such as STL links, Internet streaming, satellite uplinks, broadcasting to cell
phones, and other audio distribution systems. iPort’s efficient use of Livewire I/O combined with multiple
codecs in a single 2U device result in a low cost per channel compared to that of multiple single-channel
codecs.

Because not every remote connection is the same, Zephyr iPort users have a comprehensive selection of
connection protocols from which to choose. There are standard MPEG Layer 2, Layer 3, AAC and aacPlus
choices, plus low-delay AAC-LD and high-efficiency low-delay AAC-LD+HE, both with special error
resilience protection that conceals low levels of random packet loss. Zephyr iPort also includes AAC-
HE+PS (High Efficiency + Perceptual Stereo), the most bit-efficient codec available today, allowing stereo
operation down to 32kbps.

Zephyr iPort is perfect for facilities that already have Axia IP-Audio networks, but using it with a directly
connected Axia Analog or AES Node offers a low-cost solution for any multi-channel MPEG over IP
application. Zephyr iPort features two Ethernet ports: one to connect to the Livewire network, and another
for connection to the WAN, maintaining full isolation between the two networks for security purposes.

Visitors to IBC 2007 can see Zephyr iPort at the Telos / Omnia / Axia display in Stand #8.239. Zephyr
iPort will begin shipping 3rd Quarter, 2007, with a manufacturer’s suggested retail price of $5,495.00 USD.
For more information, contact Angi Roberson at Telos, or Clark Novak at Axia Audio, +1-216-241-7225,
and visit www.Telos-Systems.com or www.AxiaAudio.com .

This press-ready photo of Zephyr iPort can be downloaded from
ftp://ftp.telos.cc/pub/telos/pix/zephyr_iport_beauty.tif

Telos Systems, headquartered in Cleveland, Ohio with offices in Europe, is a leading manufacturer of
ISDN, coded audio and telephone interface products for talk-shows, teleconferencing, audio production,
remote broadcasts, and intercom applications.

Axia, a Telos company, builds Ethernet-based professional IP-Audio products for broadcast, production,
sound-reinforcement and commercial audio applications. Products include digital audio routers, on-air
control surfaces, DSP mixers and processors and software for configuring, managing, and interfacing
networked audio systems.