A virtual press conference from Sound & Video Contractor



PARIS, FRANCE – JUNE 2011: The Gare de l’Est is a train station that connects Paris to Germany, Russia, Switzerland, and other points abroad via high-speed rail, as well as serving as a hub for the Paris Metro. Built in 1849 and with significant additions, Gare de l’Est is one of the oldest and one of the largest train stations in Paris. But despite its age and historical significance (it was from Gare de l’Est that legions of French troops went to the Western fronts of both World Wars), the train station melds old and new elements to form an aesthetic that is strikingly contemporary. Recently, SNCF (France’s railway company) hired United Kingdom- and France-based Sound Directions to update its ticket sales area with sound reinforcement to deliver information and revenue-generating advertisements to waiting customers. Sound Directions relied on a Symetrix Jupiter 4 “zero learning curve” audio processor to provide ambient noise sensing, in addition to other processing, with minimal setup time and at a maximum performance-to-cost ratio.

Sound Directions has over a decade of experience in the United Kingdom, and, in recent years, it has extended its reach across the English Channel. Apart from importing and distributing professional audio products for a range of applications, Sound Directions specializes in public address integration for hotels, transportation hubs, conference centers, and the like. The company also has a unique aptitude for delivering directional sound for digital signage and museums, which they put to good use at Gare de l’Est. The installation was completed by integration specialist Audio Visuel Zoom, one of the regions leading audio/visual integrators.

To prevent the sound intended for the waiting queue from contributing to the overall din, Sound Directions systems specialist, Christophe Palluat de Besset selected MystSystems PAN64 ceiling-mounted loudspeakers. The PAN64 broadcasts in a square of 64-centimeters at a constant level for up to fifteen meters, with a remarkably steep drop-off outside that beam width. A modest rack of MystSystems B17 100-volt amplifiers provides power.

“The main challenge at Gare de l’Est is the huge variability in the number of customers at different times of the day and thus the huge variability in ambient noise,” said Palluat. “It was evident that we had three options. We could make it loud enough to be heard in crowded conditions, but then we would blow people away at the less busy times. We could make it appropriately loud for those less busy times, but then people would miss the information when it was crowded. The ideal solution was to implement ambient noise sensing that would adjust to match the ambient noise.”

Partly because of Symetrix’ long history with building first-rate ambient noise sensing (called SPL Computing by Symetrix) systems for airports, partly because of the Jupiter’s promise of quick setup, and partly because of the Jupiter’s competitive pricing, Palluat selected the Jupiter 4 to provide not just the SPL Computing, but also the rest of the system’s processing requirements. Three sensor microphones located at strategic locations near the SNCF desk monitor ambient noise for use in the Jupiter’s SPL Computing algorithm.

Modeled after smartphone technology, which allows a handheld device to take on a multitude of functions by virtue of “apps” that the user downloads, the Jupiter hardware takes on a multitude of processing personalities by virtue of apps that the user downloads from the Symetrix.co website. For Gare de l’Est, Palluat used the “Gain Sharing Automixer #1″ app. In addition to the SPL Computing functionality, he used parametric equalization to reduce frequencies near 150 Hz, thereby increasing directivity, and boosting frequencies near 5000 Hz to improve intelligibility.

ABOUT SYMETRIX Sound professionals rely upon the performance, value and reliability of audio mixing, routing and processing products from Symetrix. For more information on Symetrix professional audio products, please visit www.symetrix.co or call +1.425.778.7728.

BVE 2015: FOR-A to Present New Vision Mixer and Server
Lenny Kravitz Goes Wireless With Shure Axient®
Meyer Sound LEO Goes “Gangnam Style” with Psy in South Korea
L.O.C. FOH Mixer on Meyer Sound LEO and LYON: “Whatever Sound I Put In is Exactly What Comes Out”
Matrox at the 2015 NAB Show — Product Preview
Christie Delivers Undisputed Performance with Launch of 30,000 Lumen Christie Boxer 4K30 Projector
Christie H Series Joins Powerful and Distinguished 1DLP Roster
Vegas Dealers Can Hit the Jackpot with AV Warehouse’s HD Technology Showcase February 26 – 27 at the Las Vegas Country Club
Masque Sound Delivers a Basket Full of Sonic Goodies in Revival of Sondheim and Lapine’s Fairy Tale Inspired Musical, Into the Woods
New Clay Paky Stormy Fixtures Join Slipknot Tour


Stay up to date on the latest technology news. Select press representatives post company news several times a day. Check back often to get the latest news on product releases, mergers and acquisitions, and product applications. To be included in this virtual press conference, please contact The Wire.


June 2011
« May   Jul »

Your Account


Subscribe to RSS Feed

Subscribe to MyYahoo News Feed

Subscribe to Bloglines

Google Syndication