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Looking for information about codecs? Read about this topic in the latest articles from Radio magazine. Follow the links below.
IP Broadcasting and Session Initiation Protocol
Jun 1, 2008,
By Glenn Davies
Broadcasting over IP is rapidly becoming the paradigm by which broadcasters are planning future broadcast network infrastructures. Within the diverse range of broadcast IP devices coming onto the market, Session Initiation Protocol (SIP) is currently the signaling protocol used by most of the world’s telcos and broadcast codec manufacturers. It is also the most likely to provide connectivity between IP devices for the foreseeable future. 
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Establishing a SIP Connection
Jun 1, 2008,
By Chriss Scherer, editor
Codecs manufactured by members of the Audio-via-IP Experts Group -- AETA, Mayah, Oban/CRL and Tieline -- are SIP compliant. This article details the handshaking communication to establish a reliable connection.
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Remotes via IP
Feb 1, 2008,
By Doug Irwin, CPBE AMD
In the January Trends in Technology I discussed the difference between TDM and IP in the context of a station's STL system. I asserted that with a LAN
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A remote remodel
Mar 1, 2007,
By Doug Irwin
When building a new remote broadcast system, find the correct balance between functionality and ease of use.
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Eight minutes or less
Jan 1, 2007,
By Seth Vinitsky
When WBAL/WIYY had to design a production kit to cover the Baltimore Ravens, portability was important, but not the key. Time was the constraining factor. In this case, tear-down time had a special motiviation for the station if the crew wanted to catch the ride home.
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On the Air In the Air
Jun 1, 2006,
By Kari Taylor, senior associate editor
Peter Greenberg broadcasted his radio talk show, Travel Today with Peter Greenberg, from a jet flying from Frankfurt Germany to New York via the Internet.
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Taking the show on the road
Feb 1, 2006,
By Doug Irwin
As technology has progressed, broadcasters have found ways to use improved technologies in unique ways to make remote broadcasts sound as good as being in the studio, but with the convenience of lighter and more flexible equipment.
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Big, but not so easy
Feb 1, 2006,
By Mike Pappas
Following the devastation of Hurricane Katrina, New Orleans would seem to be the last place to originate a coast-to-coast broadcast for New Year's Eve. The city of New Orleans and NPR felt differently, and the pressure was on to prepare for the event.
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Portable affordable
Jul 1, 2005,
By Chris Wygal
When Chris Wygal joined WRVL, his goals were to improve the home-crowd ambience, put a pre-game crew on the concourse of the stadium, make the station's sideline reports easy to hook up and get the game in stereo back to the station. But how was he going do this with a budget that left little room for sports broadcasting?
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Comrex BRIC
Jun 1, 2005,
By Tom Hartnett
On an unseasonably warm and sunny New England day, the Comrex engineering team set forth boldly to test BRIC on as many publicly available hotspots as possible.
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Audio TX STL-IP
May 1, 2005,
By Rich Parker, GSEC
With telephone companies less willing to support dedicated equalized broadcast lines, and in some areas reluctant to setup new ISDN service, the challenges for getting audio from here to there are becoming greater. So what can you do?
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Reliable Connections
Jan 1, 2005,
By Chriss Scherer, editor
While remotes and live events are the primary use, many stations are using POTS and ISDN codecs for back-up STLs and other itinerant applications.
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The end of ISDN?
Dec 1, 2004,
By Kari Taylor, associate editor
When the project began, Nassau New Hampshire ordered five ISDN and POTS codecs. Now Verizon says that ISDN is not available.
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Telos Systems Zephyr Xport
Nov 1, 2004,
By Kirk Chestnut, CSRE
Think of the Xport as the Swiss Army knife of remote equipment. It can transmit audio via POTS or ISDN to a studio-located ISDN Zephyr codec.
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