Zephyr Xstream ISDN Codec

The Best Way to Hear from There.

The Telos Zephyr is the best-loved broadcast codec in the world, and for good reason: Zephyr saves you time and money. A Zephyr Xstream at your studio becomes a “universal codec,” connecting with every popular ISDN codec for full-duplex, 20kHz stereo audio. Using ISDN you can transmit and receive two mono channels to and from separate locations, even transmit and decode streaming AAC and MP3 audio over Ethernet. And in the field, Zephyr Xstream is a powerful remote tool, with intuitive step-by-step operation, context sensitive help, and a simple user interface that eases operation for non-technical personnel. Zephyr pioneered the concept of the ISDN codec — which is why you’ll find more
Zephyrs in studios and remote kits around the world than any other codec.

Zephyr Xstream has a huge range of standard MPEG coding options, which include MPEG Layer-3 and MPEG AAC for indistinguishable source-from-input audio at only 128 kbps. Zephyr Xstream can also be used for LAN and WAN IP streaming of MP3 or AAC over properly managed networks. Zephyr’s AAC coding includes error concealment to inaudibly recover from a lost packet or two, and an adjustable packet jitter buffer allows you to easily accommodate different networks.

There are two Zephyr Xstream models tailored to fit your needs: The standard rack-mount Xstream, and the portable Xstream MXP, a ruggedized portable version with built-in DSP mixer and Phantom microphone power to help reduce field equipment inventory and setup times. All have standard Analog and Livewire I/O, and a built-in terminal adapter with integral NT1 for worldwide compatibility without software changes. The studio version also has standard AES/EBU I/O, and the portable XStream features a DSP-based AGC/limiter with Omnia audio processing and selectable presets for music & voice.