Most Popular Articles
A Capitol Move for WUIS
Stick to the script
The GP16 panel comes in handy when experimenting with scripts. I wanted to know if a script could be written to make one of Wheatstone's GP or LCX rack mount panels into an audio switcher with a safety button. I wrote a test script for that purpose and it worked as planned. To return the GP16 panel back to normal I just downloaded the original script back to the panel.
The Wheatstone AoIP drivers are handy in the news booth, and they are about half the cost of a professional four-channel sound card. Instead of having a generic source called "Computer" I can name the AoIP sources with their function names. On one computer there are separate AoIP sources/destinations for Editor, Skype, Internet, and NewsReady.
I had a number of speakers (the angled enclosure type that were ubiquitous on the walls of many radio stations in the 1970s) that were installed by being laid face down on top of drop ceiling tiles throughout the station. I feed them via a Wheatstone Blade output. Normally the speakers are fed audio from NPR's squawk channel. During EAS alerts our Endec decode relay causes a momentary connection to feed EAS alert audio to the speakers. In addition, EAS alert audio interrupts cue audio in every studio. There is a silence sensor that causes a momentary connection of alarm audio to the speakers. The source for the alarm audio is a LM556 timer circuit that emulates the Star Trek "Red Alert" sound. The drop ceiling panels are porous allowing the speakers to be audible everywhere in the station without having retro speakers hanging on the walls.
The IP system has proven to be a good fit for us, providing broadcast quality audio with easy configuration. We will be able to freely expand without disrupting operations.
Manfroi is the chief engineer for WUIS Public Radio in Springfield, IL.
Acceptable Use Policy blog comments powered by Disqus
[an error occurred while processing this directive]
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
Read each issue online in our Digital Edition Format in your Web browser.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
Browse Back Issues[an error occurred while processing this directive]
Also in the January Issue
- Trends in Technology: AES-X210, The "Missing Piece" of AES67?
- FCC Proposes Online Publc File Rules for Radio
- RF Engineering: Licensing AM Stations Using Method of Moments
- Field Report: Zoom H6