The technology under the hood of the products from The Telos Alliance

Under the Hood

AoIP: It’s the ecosystem, not just the technology

Posted by Marty Sacks, VP, Axia Audio, and Kirk Harnack, VP, Telos Systems

When Steve ChurchAxia family unveiled IP-Audio, the technology which became our Axia brand, at NAB in 2002 he told everyone his vision: all broadcast equipment speaking a common language of networked control and audio, finally doing away with soldered, single-destination audio circuits and the stupefying array of connectors that accompanied them. Steve’s desire – and ours – is that all broadcast gear should interoperate. And not just operate together, but do it easily, seamlessly and without drama.

Fast-forward to 2014: our customers tell us that we’ve made a bit of progress! We’ve come to refer to this synergy, this co-operation of broadcast gear, as an ecosystem – all parts working together in harmony, with the sum of the parts being greater than the whole.

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Topics: Audio over IP

AoIP Networks: How Fast Should I Go?

Posted by Marty Sacks

Fast LaneYou probably remember learning to drive. Your Driver’s Ed teacher (or other responsible adult) would constantly monitor your speed and point out when you were going too fast. In your own mind, you could never go too fast! And for some of us, once we got that adult out of the car, we put our foot down to the floor. We never changed our thinking, and we have the speeding tickets to prove it!

It would be easy to think of AoIP networks in the same terms: if fast is good, faster is better — right?

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Topics: IP Audio Network Routing & Control

Audio Control is a Process, not a Product

Posted by Dave Sarkies

Gilbert Felix / Linear AcousticLinear Acoustic Focused on TV Audio Issues in Latin America

Gilbert Felix, Linear Acoustic Director of Sales for Latin America, spoke with media regarding the issue of television audio control at the recent SET convention in Porto Alegre, Brazil.

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Topics: TV Loudness Management

Beware the FUD Monster

Posted by Marty Sacks

Doubt & Fear

With more radio stations contemplating Audio-over-IP as an audio infrastructure, one statement made by certain equipment manufacturers goes something like this: “You know, if you buy that gear, a PC is required to run your AoIP network.”

In the sales trade (and let’s be honest, that’s what this is all about), this sort of statement falls under a special designation called “FUD” – Fear, Uncertainty and Doubt. Some folks make these sorts of statements in order to distract you from the fact that their systems have nothing better to offer than their competitors, by implying that there’s a horrible fault in their competitor’s gear. In this case, the implication is that a PC attached to the system somehow makes it unreliable for broadcast.

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Topics: Technology

Audio Networking: Purpose-Built vs. The “Kitchen Sink Approach”

Posted by Marty Sacks

Marty SacksThere’s a whole lot that goes into building AoIP studio gear. And there might be even more that goes into choosing the system that’s right for your studios!

One key decision you’re faced with almost immediately in your selection process is which design philosophy to align yourself with: Purpose-Built, or the Kitchen Sink.

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Topics: IP Audio Network Routing & Control

What’s the Deal with AES67?

Posted by Marty Sacks

Marty SacksBy now, you’ve likely heard that the Audio Engineering Society (AES) has ratified the AES67 standard, which defines how Audio over IP (AoIP) systems from different manufacturers should interoperate.

The question, now that there’s a published specification, is — where do we go from here?

You might be interested in knowing that the team here at Axia has been involved in helping create this vital interoperation spec since the very beginning. We helped create and sustain the effort to create an interoperability spec, as well as contributing our technology and experience, to make creating the standard easier. Being the first company to develop AoIP technology for broadcast studios allowed us to help in ways that companies that were newer to this tech weren’t able to.

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Topics: Axia Audio, AES67

Compliant Loudness Should Still Move the Meters!

Posted by Mike Richardson

Mike RichardsonRegulations which aim to improve broadcast audio loudness consistency are being implemented worldwide. This is a perfect example of legislators everywhere reacting to an issue that affects all their constituents' broadcast channels with loudness variation that is annoying to viewers. Often attributed to commercials, it is often program related as well.

This is a case where the old adage “be careful what you wish for, because you may receive it” definitely applies; in some cases the fix for annoying loudness variations has produced unintended consequences.

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Topics: TV Loudness Management

What You Need to Know About Audio Time Management for Radio

Posted by Neil Glassman

Clock Playing Back AnnouncerThe first audio delays were tube based.

But did you know that those tubes were garden hoses with a speaker at one end and a microphone at the other? The hose’s length was calculated at one foot per 1ms of desired delay. As you can imagine, it did not sound good at all.

Today, radio broadcasters can take advantage of sophisticated digital technologies for audio delay, as well as for shrinking and stretching program material.

In this post, we’ll take a look at some of the historical highlights and where persistence and innovation have gotten us today.

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Topics: Audio Time Management, 25-Seven

Transition from ISDN to IP Audio Continues

Posted by Dave Sarkies

Cam EicherFollowing our blog post about the gradual phasing out of ISDN in favor of IP Audio transmission for remote broadcasts, we received a variety of comments and questions regarding the pros and cons of this transition. We'd like to answer those questions – not just because we create IP Audio technologies, but so you can better determine if and when IP Audio might be right for you.

With that in mind, our Cam Eicher answers some great questions posed following last week’s blog post.

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Topics: IP Audio Codecs & Transceivers, IP Audio Network Routing & Control, ISDN

As ISDN is Slowly Phased Out, IP Audio Emerges

Posted by Dave Sarkies

Barry ZateVoice Actor Barry Zate writes: “I am a user of the Telos Xstream. I love it. But [my ISP] is working hard at ditching ISDN [and] I am paying $360 a month. I am wondering if Telos has talked with [ISPs] about ISDN… I am wondering if they could offer ISDN to save the service.

Are you working on promoting the Z/IP product? It sounds like a solid alternative. ISDN is just dying here. HELP!”

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Topics: IP Audio Codecs & Transceivers, Audio Engineering, ISDN

About Under the Hood

Inside our products are the most advanced technologies – many invented by our own research and development teams.

On this blog, we discuss how we put these technologies to work for you.

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