Guangzhou sing the "Bird's Nest" the strongest voice.

"There is no sound, no matter how good the opera can not get out!" Another 9 days, the Beijing Olympic Games has attracted worldwide attention in the National Stadium "Bird's Nest" officially kicked off. .How can 10 million viewers at the scene, and billions of television viewers around the world ensure that the station before the Olympic drama singing a gun, smooth over and over, the glory of this historic mission will be from Guangzhou Panyu Rui Feng audio exclusive commitment .. .Since November 2006 was identified as the "Bird's Nest" venue sound reinforcement system has been only designated audio brand, the company has been worth fighting for nearly two consecutive years. .The occasion of the forthcoming opening of the Olympic Games, the reporter went again yesterday Rui Feng sound companies, to understand the drama of the Olympic Games with the expertise to ensure the smooth singing of little insider story. .Text / Photo: Ye Pingsheng reporter correspondent Xu Fengyun "Bird's Nest" full disclosure of technical data sound system at 13:00 on January 22 2008 the whole, with the third group OP4922L East Stand audience slowly rising linear array of speakers, " .Bird's Nest "Speaker hoisting been completed. .The reinforcement system of the hanging data includes: the total design load capacity: 48 tons; actual total static load: 24 tons; actual total dynamic load: 38.6 tons; structural load-bearing steel structure: 6 tons; linear array of speakers: 236 .; make voice box: 500; speaker connectors: 120. .The reporter was informed that during the Olympic Games in Beijing, "Bird's Nest" stadium will have a 236 line array speakers divided into 24 groups and 500 together make up the sound box, to ensure competition, performances and various sounds will be able to speak clearly and smoothly .to send out. .Clear voice such as "whispers" "Bird's Nest" is an area of 25.8 million square meters of large sports venues, the main steel structure building. ."Nest" inside a total of 80,000 seats, together with additional temporary seating to accommodate the site during the Olympics it will be more than 10 million people. .As the "Bird's Nest" venue sound reinforcement system is the only designated brands, Guangzhou Rui Feng, Chairman Wang Ruixiang told reporters that sound, in order to ensure the "nest" of each position of the audience can clearly hear every wonderful moment of Olympic drama, .their "nest" around the dome of the 236 primary total installed public address speakers, as well as the complement of 500 auxiliary sound box. .All of these speakers are located in Panyu District Rui Feng enterprise production, its safety factor highest in the world, a total of 3 sets of backup system. .Among them, the main PA speakers with the world's largest professional line array speaker - OP4922L line array speakers. .This 236 is divided into 24 main PA speaker groups, pointing to the audience and the competition venues, each with different requirements according to PA, from 4 to 14 component speakers. .Among them, the number of the largest groups of sound in the top of the podium, pointing across the auditorium. .This reporter learned that, "Bird's Nest" 236 speakers are the main extension installed by hanging out, dispersed in the "nest" around the dome, the from the audience following the recent 42 meters, the longest is over 68 meters. .Olympic venues, according to the sound target, "nest" the language of sound reinforcement system to achieve clarity STI value of 0.6. .And Rui Feng LAX sound system installation, after the previous stage, "Good Luck Beijing" test series and other activities, the language definition does STI values to 0.6. .Rui Feng audio company responsible for the "Bird's Nest" sound system engineering industry, technical director Chen Jian, told reporters it sound just like "whispers in the ear" almost. .Hoisting rope is more rain during the Olympics wind, "Bird's Nest" staged the opening and closing ceremonies for each of programs, each of the sports events in order to sing well, sent to the scene to clear the ears of 10 million viewers, not only to solve " .Bird's Nest "Steel Material established problems of poor acoustic environment, but also must ensure that any possible outbreak of the audience through out the cheers, cheering and various other" noise. " .To this end, Rui Feng companies from the speaker's selection, design technology and other technology public relations professional level to proceed to the final successful resolution of the problem. .The field measurement, this linear array speakers 236 OP4922L the highest sound pressure level can reach 112 decibels. .According to the relevant previous determination of the case in the packed audience, the largest nest environmental value of the reflected sound (noise) was 96 dB. ."(Sound reinforcement system to send sound signals) over (it) 6 db can guarantee clearly heard as the audience." 112 dB maximum SPL can guarantee that even the most exciting time in the pit, expansion .sound system can also be the sound from the sound source to send out a clear signal, while not the formation of unpleasant effects. .Reporter was informed that although the "Bird's Nest" is a steel structure construction, but the weight still had the time of the tender sound reinforcement system is an important indicator. .Industry, said Chen Jian, in order to reduce weight while enhancing the sound effects, choice of material for them to make use of "softer" materials, in which case some of the speakers on the selection of the Baltic birch. .This material due to its high hardness, light weight characteristics, the price than their previous speaker enclosure materials commonly used "double." .This reporter learned that, even so, the complete lifting, all 24 sets of main speakers expanded material related accessories plus the amount of the total load in the static case is still reached 24 tons, while taking into account their "Bird's Nest" venue .wind, resulting in lifting the case of speakers swing, the total dynamic load capacity will increase by 60% to 38.6 tons. .They will be mainly through the load-bearing steel wire rope and insurance, lifting the Bird's Nest around the dome. .To do this, just to hang speaker load-bearing steel structure to the structure and weighed 6 tons. .Moreover, as these speakers are installed in a half hanging out the open-air venues, they have taken a number of "rain" measures to prevent water intrusion of sound speaker cabinet. .Pictures of the topic: Wang Ruixiang provide happiness: Can live to regret in the Olympic Games Technical Support: hand-held special permits can only listen to can not see in yesterday's interview, Wang Ruixiang showed reporters during the Olympic Games in Beijing a special permit. .This number "6112302-01" and "5" special pass, issued by the Beijing Olympic Organizing Committee. .With this "Certificate No. 5", he can freely include the "Bird's Nest", Digital Beijing Building, Olympic Park, public areas, work area broadcasters, and include the "Bird's Nest" Olympic Stadium, the Qingdao International Sailing Center and other various .playing field area, viewing distance track and field, football, modern pentathlon, archery, sailing and other exciting activities in the Olympic tournament. .In the company, and Wang Ruixiang, like, holding Olympic "5, special permit" employees, as well as 20. .Their task is to the entire Beijing Olympic Games and the subsequent Paralympic Games, the Olympic Games for the successful sing the drama escort to provide sound technical guarantee. .Pass holders free access to the venue the company did in the Rui Feng Chen Jian industry more than 6 years, from 2006 to participate in the "nest" sound from the time the tender, has been involved in this work, has been more than 2 years. .During the Olympics, he also holds a "Bird's Nest" Beijing five major Olympic venues such as the special permit, free access to the playing field area of the project. .Ordinarily, this should be a very happy thing, but Chen Jian industry, told reporters in Beijing during the Olympic Games, they can not live to see the Olympic Games, but can only "hear" the Olympic Games! .As technical support personnel, they have to stay in the "nest" inside the audio master control room at any time monitor the working conditions inside each speaker, which group of speakers if it is found is not normal transmission of signals, the system will automatically enable the backup process immediately .device, "within a few seconds at the zero, the sound sent out in time." Thus, the audience will not feel the impact of what's produced. .All day but can not abandon the Olympic stadium watching the game, it makes them feel that this is Chen Jian industry some "regret", but "it can not help. After all, our job is in the audio switchboard room." .And participation in lifetime technical support to the Olympic Games among the Chen Jian industry believes that this should in any case is a "happy" things..