ZEPHYR XPORT USER’S GUIDE

combined with background sounds such as from sports spectators, traffic, applause, etc. CELP does have the advantage of lower delay, but it comes at too much cost to audio quality, in our view.

Will other vendors be able to make products to interoperate with Xport and Xport-enabled Zephyr Xstreams?

If they want to, yes. As is Telos tradition, we prefer standards that do not lock you in. Remember the early ISDN codec days? In the face of repeated attempts to get users to take up proprietary schemes, we held fast to standards. And, we sought the very best at the time – MPEG Layer 3. We were, in fact, the first in the world to license and offer what has come to be known as MP3, a decision well vindicated over time. When needed, we have worked co- operatively with competitors to help them achieve interoperability. Xport continues this tradition and approach. The aacPlus codec is licensable by all who choose it. We hope it catches on widely, because it really is very good.

Why did you wait so long to make an analog line codec? Seems like a natural extension of your Zephyr, and you guys do know coding, right?

Maybe it was because we know coding that we have been on the sidelines until now. We just hadn’t heard a codec that sounded broadcast quality to our ears before this one. Those with long memories may recall that we demo- ed a POTS codec prototype using MP3 at an NAB radio show many years ago – before any others were marketed. We have been thinking and planning this step for some time.

Also, we didn’t want to use an off- the- shelf modem owing to the problems with those, and we wanted to use ISDN on the studio side, so that had to wait for the companion Xstream. The pieces finally came together to let us give you all the right stuff.

Can I upgrade my older Zephyr Xstream codec to operate with the Xport? Will it be free?

Of course! Telos has had a long history of enabling new applications with software enhancements to products. Because the Xstream has an Ethernet port, it may be upgraded over the Internet, without changing any parts or sending it to Telos. You may do so for free. Or, you may choose to upgrade by replacing a memory SIMM or by sending the unit to us. In these cases, there will be a modest charge.

What version software must I have in my Xstream to work with the Xport?

You will need version 2.5 or later

Tell me more about the Ethernet?

This can be used for remote software and for control via a web browser, just like the Xstream.

However, we also have another exciting use for this port. These days, field work often includes a Laptop PC. We believe that Ethernet will come to be regarded as an essential way to interface most broadcast gear to computers and networks, so all of our new equipment has it. The Xport will support a streaming audio connection so that you can play files from a PC into the Xport for transmission.

So what is the Aux Interface connector for?

The Aux Interface connector has audio send/receive signals on a TRS connector, and is intended for analog hook- up to today’s mobile phones via the often- included headset jack. You can achieve some benefit over normal phone quality by using a professional microphone and the Omnia processing – a little better than standard phone audio, anyway.

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Telos Zephyr Xport manual Tell me more about the Ethernet?, So what is the Aux Interface connector for?
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Zephyr Xport specifications

The Telos Zephyr Xport is a cutting-edge audio-over-IP codec that seamlessly revolutionizes the way audio is transmitted over networks. Renowned for its high-quality sound, this powerful codec is designed for both radio broadcast applications and professional audio environments, enabling efficient, reliable, and high-fidelity audio transport over IP networks.

One of the main features of the Zephyr Xport is its ability to handle multiple audio formats, including PCM, AAC, and MP3, which provides users with flexibility depending on their specific needs. Its ability to encode and decode audio ensures that broadcasters can deliver outstanding quality both on the air and in streaming applications.

The technology behind the Zephyr Xport includes advanced algorithms that minimize latency, making it ideal for live broadcasts where real-time transmission is crucial. With a low latency rate, users can enjoy audio transmission that is nearly instantaneous, a defining feature for any live event or remote broadcasting situation.

Another standout characteristic of the Zephyr Xport is its support for multiple network protocols, including RTP/RTCP, SIP, and POTS. This versatility allows integration with a wide range of existing equipment and infrastructures, facilitating easy implementation in various settings. Additionally, the codec boasts robust error correction and adaptive bitrate control to ensure audio clarity even in fluctuating network conditions, reducing the chances of dropouts or interruptions.

The user-friendly interface of the Zephyr Xport features an intuitive LCD display, making it easy for operators to configure settings, monitor audio levels, and manage network connections. With built-in web access, users can make adjustments and control the unit remotely, providing added convenience for situations where operators are away from the hardware.

Moreover, the Zephyr Xport is designed for durability and reliability, constructed to endure the demands of a fast-paced broadcast environment. Its compact design makes it suitable for rack mounting or portable use, allowing broadcasters to take it on location without hassle.

In summary, the Telos Zephyr Xport combines advanced audio processing technologies with user-friendly features, making it an essential tool for modern broadcasters. Its high-quality audio performance, low latency communication, versatile protocol support, and ease of use exemplify the future of audio transmission in the ever-evolving landscape of digital broadcasting. As the industry continues to embrace IP-based solutions, the Zephyr Xport stands out as a vital asset for any professional audio application.
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