California-Chula Vista, October 25, 2009, over 100 of the world's top cross-country cyclist at California, common campaigns this year, the ultimate cycling BMX, come to watch the Super audience of thousands of people. This competition has original application Shure PSM ® 700 personal listening system to enable all the scene audiences are able to listen to them scream tire conversions.
Events in San Diego County in the South of the United States Olympic Training Center (OTC) track unveiled, the first level of the track is a replica of the Beijing Olympic bike site design, covers an area of up to three acres of the racetrack also give audio amplification challenges. Prior to that of previous competitions are renting audio system, each race's leasing cost nearly US $ 30000 is very high, therefore, decided to borrow the current OTC official competitions of Dongfeng installed a on-demand extension of permanent audio infrastructure.
Fallbrook's Quiet OTC invited Voice Audio company responsible for the design and construction of the system. Quiet Voice company founder and owner Jon Bart said: "the arenas and vast, noisy boiling, but the basic previously leased OTC are non-exclusive audio system, it is often difficult to achieve comprehensive audio coverage, reaching effective sound pressure level. ”
Bart first observation of the track and its neighbouring regions, found that can be used for laying speaker cable and balanced audio feeder of duct outlet are also very few, very little — or rather, the entire coverage only three.
Bart said: "thanks to the East of the track and a tower location good, can be used as a primary marketing control center and audio mixing room, the remaining issue is how to connect the audio signal from the Tower propagated to all covered. The track is equipped with seating on all four sides, and past audio equipment rental companies tend to use a single array, which is far to meet the needs of game audio playback. ”
Because the available duct and the power to make ends meet, the development of the entire cable distributed system design in very slim hope, therefore, Bart decided to adopt wireless solutions. Bart said: "this programme will work, so why not use UHF-FM will signal propagation to overwrite? so you don't need to consider the speaker line up. We intend to challenge the limit, see how to squelch what can connect the audio signal is transmitted to the far. ”
Quiet Voice will 14 self-powered speakers arranged around the track, and is committed to bold innovation, to original use Shure PSM ® 700 personal listening system. In order to guarantee safe operation, PSM ® 700 receiver installed in a Pelican rainproof box, the waterproof box is equipped with an antenna Lemo connector, one provides the audio output of TRS 3.5 mm interface as well as a spin-off of the female head Terminal 9V Shure PS9US equivalent battery 9V, receiver fixed in a self-powered speakers on the side of the location in the face-control tower of one side of the track. Quiet Voice company Tower receives and transmitter of Shure directivity antenna location to a single speaker receives wireless signals transmitted to the other side of the track, and by standard balance line will signal to 8 only passive speakers. The control tower near the remaining 6 only speakers with traditional cable connection.
Bart said: "select Shure PSM ® 700 system that is inevitable, its compact size, frequency response, compression and smooth, quiet, very solid structure, by virtue of the system, we were able to take advantage of out-of-the-antenna-pass will clear all squelch signal transmission to the point. Now we are in the OTC was a great expansion of space, just in the other site venues of additional receiver, you can easily override the broader region. ”
The subversion of the traditional wireless design contest, in great success, the master of ceremonies of sound through the Shure Beta 58 ULX wireless microphone ring all the time, the effect was very shocked, as Bart said: "like a DJ on the shot that laser, broke the silence of the night sky. In such moments, we all understand that we succeeded, everything is perfect. This event first held a swearing-in ceremony, and played the national anthem. Next, the seal Commando in Calaveras County teams with colorful smoke and a United States flag for a parachute, and landed at the track. The audience jumped, but in this ballpark moment, you still can clearly hear the voice of the master of ceremonies. This is our vision and goals, OTC staff and sponsors also very satisfied with it. ”
Everybody longing for the happy ending, Bart. In audio, limit cycles have made Super rally in win-win great results, Bart and his staff play their creative skills as well as new and unique ways to use the high quality of Shure components.
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