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Blog Central

Radio Free Asia: Axia Early AoIP Adopters

Posted by Tom Vernon on Oct 5, 2016 1:30:00 PM

As Axia celebrates the 13th anniversary of our invention of AoIP audio, we like to look back and acknowledge some of our early adopters, those brave souls who purchased Axia gear at a time when breaking from AES3 or analog and going with IP audio represented some serious risk taking. One of those was Radio Free Asia (RFA), a nonprofit international broadcaster with its headquarters in Washington, DC and satellite studios throughout the Pacific Rim. RFA broadcasts in nine languages, via shortwave, satellite transmissions, medium-wave, FM, and streaming online. Most of the broadcasts are in Mandarin Chinese, which is broadcast twelve hours per day. We spoke with RFA's CTO, David Baden, who has recently returned from India, where he set up the remote equipment for Radio Free Asia's live coverage of the Tibetan elections.

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Topics: Axia Audio, Audio over IP, Livewire, aoip, Radio Free Asia

The Case for AoIP Interoperability and the Rise of AES67

Posted by Martin Dyster on Feb 29, 2016 4:58:00 PM

The global television broadcast community is poised at the brink of the next great revolution in technological advancement – audio and video over IP. The great leaps that we’ve witnessed over the last 50 years, from black and white to color, mono to stereo, analogue to digital, 4:3 to 16:9, SD to HD and from stereo to 5.1, have benefitted the viewer at home each step of the way, and has been embraced with the purchase of the latest TV or Home Cinema system. However, in the backrooms of TV stations, broadcast engineers around the world have toiled over system designs, white papers and equipment catalogues while manufacturers have raced to bring out the next best widget designed to do the job.

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Topics: AES67, Audio over IP, AoIP for Television

AES67 Breaks Out at ISE 2016

Posted by Dave Sarkies on Feb 17, 2016 3:15:00 PM

Typically, when you think of a trade show in Amsterdam, you probably think IBC. Certainly the late-summer show is an important convention, but one geared specifically to broadcasters. Integrated Systems Europe (ISE), on the other hand, is aimed at the larger international Audio Video industry, with an emphasis on A/V technologies for live performance settings and business applications – anything from boardroom videoconference systems to the latest speakers for live venues.

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Topics: AES67, Audio over IP, aoip

AoIP Planning Tips with Stephen Poole

Posted by Kirk Harnack [TWiRT] on Feb 12, 2016 12:00:00 AM

We compare two different brands of Audio over IP mixing and routing systems and find - they’re pretty similar in terms of network planning and wiring. Stephen Poole of Crawford Broadcasting joins Chris Tobin and Kirk Harnack, looking at Wheatnet and Livewire+. Plus we’re discussing options for secure remote access.

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Topics: Audio over IP

Shay: Manufacturers Plugged In to AES67

Posted by Dave Sarkies on Jan 20, 2016 5:00:00 AM

The Audio Engineering Society held its second annual Plugfest this past November at NPR studios in Washington, with nearly a dozen manufacturers in attendance, each working toward the goal of audio interoperability. Telos Alliance Chief Science Officer Greg Shay was on hand, and says despite the attendees being competitors, there was a spirit of cooperation that made the event a success.

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Topics: AES67, Audio over IP, aoip

AERO.soft - Bringing Audio Monitoring and Processing into AoIP

Posted by Martin Dyster on Nov 30, 2015 5:01:00 PM

In the past, audio processing and monitoring required the purchasing of multiple, specialized hardware to support each function in the air chain. But now, thanks to the increase in the speed of Ethernet connectivity, and IT-based processing power, many of these same processes can be condensed and supported over IP. Audio in particular is making a move to the IP realm with the recent AES67 standard bringing interoperability between manufacturers. Even with this standardization, Audio over IP (AoIP) is still not being used to its maximum potential in the broadcast space.

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Topics: Audio over IP, AoIP for Television

Notes on Choosing an AoIP Studio System

Posted by Andrew Dickens on Nov 18, 2015 2:35:00 PM

Here at KOOP-FM, we installed an Axia system in 2006 (and reinstalled another in 2008 after a fire). Prior to deciding on this system we had visited an even earlier Axia installation at our local Univision cluster.

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Topics: Audio over IP

Audio over IP and the Future of Television

Posted by Ken Tankel on Oct 29, 2015 12:00:00 AM

 

Video and audio were handled separately for years before SDI video with embedded audio came into use.  Embedded audio appeared to be a step forward.  The reality is that embedded audio has not reduced lip sync issues and metadata is still easily separated from the audio that it describes.  This is particularly unfortunate because metadata will become more essential with new audio services.  Audio embedding and de-embedding was never perfect and it remains limited.  SDI is, at heart, a video format and it cannot support the future of audio.  Channel based audio is heading for replacement by carriage of the objects that make up the channels.  Multiple languages, emergency audio, and services for the blind are all competing for space in broadcast services.  These expanded audio services provide flexibility and enhanced consumer experiences for broadcast and OTT services and even handheld devices.  AES67, Livewire+ and related standards offer a path to making all of this work – including lip sync!  AES and SMPTE are working together, and the results will enable the sub-sample accurate linking of Audio over IP (which has existed in radio for over a decade and is growing in TV) and video, all without requiring it to be glued together until final delivery.

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Topics: AES67, Audio over IP, AoIP for Television

AoIP – The State of the Union, 2015

Posted by Clark Novak on Oct 28, 2015 6:00:00 AM

Part 1: Nerves and Networking

At 11:59 P.M. on a Sunday in April, 2002, I was sitting on the thinly carpeted floor of the NAB convention hall watching as a software guru fed lines of code into his IBM Thinkpad. The next morning, the doors of the hall would open, and our newest product – a console surface with an IP-connected DSP mixing engine – would be displayed for the examination of broadcasters from all over the world.

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Topics: Audio over IP

How AES67, the New Audio over IP Standards, will Bring the Convergence of Telecommunications, Studio Audio, and Intercom

Posted by G.F. Shay and M.J. Dyster on Sep 16, 2015 12:00:00 AM

AES67 is a new industry standard for interoperability of high quality audio over IP networks from the Audio Engineering Society, published just under two years ago (September 2013). This standard was quickly embraced by all of the main broadcast audio equipment vendors, and compatibility modes announced by all of the major competing networking audio vendors: Livewire, Q-LAN, Ravenna and Dante. Outside of broadcast, there has also been a high level of audio industry acceptance.

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Topics: AES67, Audio over IP, aoip