On August 26, the long-awaited Ningbo Olympic Sports Center was officially opened, and the 2019 International Men's Basketball Warm-up Tournament started hot on August 26 - 28 at the Ningbo Olympic Sports Center Gymnasium. The Spanish national team, the Argentine national team, the Russian national team and other world powerhouse teams were invited to participate. The brand new sports stadium with luxurious participation lineup brings the first large-scale sports event for the public.
Ningbo Olympic Sports Center is a large comprehensive sports center integrating sports events, professional training, national fitness, cultural activities and sports exhibition, international sports exchange, and sports-themed leisure business. With a site area of about 540,000 square meters, the project consists of "a stadium, three halls and a center", i.e. a stadium, a gymnasium, a swimming pool, a comprehensive training hall (national fitness center) and an international sports exchange center.
Outside view of Ningbo Olympic Sports Center
Ningbo Olympic Sports Center sound reinforcement system project is a technical innovation project of the domestic Olympic Sports Center. As a strategic partner of Ningbo Olympic Sports Center gymnasium and swimming pool sound reinforcement system, Soundking undertakes the audio equipment supply, installation, commissioning and technical support of the gymnasium and swimming pool.
From the beginning of 2017 to start the program design, May 2019 to complete the final commissioning, after engineering design, environmental analysis, repeated experiments, engineering measurement, installation and commissioning, etc., in 21 months, the gymnasium and swimming pool have reached the "JGJ-T/131 -2012 Gymnasium Acoustics Design and Measurement Regulations" main sound reinforcement system sound reinforcement characteristics index level 1 standard.
Overlook of Ningbo Olympic Sports Center
Soundking's Soundking, Cadac two brands, with the best quality products for the Olympic Sports Center project escort, using a total of nearly 100,000 meters of cable, 72 line array speakers, 29 full-range speakers, 4 subwoofer speakers, 12 underwater speakers, 8 waterproof sound column, 4 sets of mobile speakers and 30 interface boxes.
BIM and professional technology are used for the whole project. The construction process is controlled in real time through detailed analysis of the installation environment, reliability tests of the hanging structure and connections, and tests of the rust resistance of the wire rope under soaking conditions.
Adopt advanced and reliable DANTE network and digital-mode dual backup system. It meets the demand for large-scale and long-distance transmission of the system, and the equipment supporting the transmission of digital audio signal network can reach dozens or even hundreds of units to realize the interconnection of digital signals between equipment.
Standardization of construction process. Adopting board number and port number, the identification method of pinyin and numeric numbering can quickly and accurately find the corresponding ports and cables, which is easy to use and maintain.
Ningbo Olympic Sports Center Gymnasium has a construction area of 47,449 square meters, with a seating capacity of 13,000 seats, 5 floors above ground and a height of 42 meters, including two functional blocks: the main gymnasium and the secondary gymnasium. The main stadium is capable of hosting domestic and international events, as well as cultural performances. The secondary gymnasium is used as a warm-up for games or for regular practice, with two courts to meet the warm-up needs of basketball and volleyball games.
Gymnasium exterior view
Gymnasium interior view
The speakers in the venue are designed in a zoned sound reinforcement mode, six groups of imported B & C custom units consisting of dual 12-inch line array speakers for the audience for zoned sound reinforcement, six coaxial speakers TS66 for the venue sound reinforcement. TS-SUB ultra-low frequency combined array pointing design, can control the low-frequency dispersion pointing mode, so that the upper part of the low-frequency beam attenuation lower superimposed to reduce the low-frequency resonance phenomenon over the stadium.
Dual 12-inch line array speaker G12 using four-way drive external crossover system. Provides a frequency range of 50Hz-20kHz. Two 44mm (G12), 76mm (G12N) tweeter compression unit, four 6.5-inch midrange units plus two 12-inch bass paper cone units constitute a dynamic margin of great combination, and greatly reduces the weight of the cabinet, providing a very high sound pressure / volume ratio.
12-inch line array speakers for the audience partition sound reinforcement
The 12" low/midrange section uses a pair of 300W (G12) 700W (G12N) 12" paper cone woofers. The midrange section consists of four high-sensitivity 6.5" midrange units with midrange phase plugs installed on the midrange surface to improve directivity and increase sensitivity at the high end of the midrange, while greatly reducing distortion and creating a low-curvature wavefront surface. The high-frequency section uses two 44mm (G12) 76mm (G12N) composite membrane compression units, through a plane wave converter to convert the high-frequency acoustic waveform from spherical waves to equal-phase plane waves, greatly reducing the high-frequency interference effect, so that the sound clarity at a distance greatly improved. At the same time combined with a 90-degree exponential curve constant directivity toward the horn, producing a consistent wavefront surface.
12-inch line array speakers for the audience partition sound reinforcement
Soundking quality coaxial speaker TS-66 by a B & C imported unit of 15-inch low-frequency paper cone speakers and a 3-inch neodymium magnetic high-frequency compression driver, horn cabinet design, woofer and tweeter coaxial installation, tweeter horn coverage angle of 60 ° (H) X 60 ° (V). In order to give full play to the performance of the speaker, the speaker internal crossover, through the external digital audio processor crossover optimization. Made of glass fiber reinforced plastic CD constant directional tweeter horn, the tone is delicate, good sense of sound image. The enclosure is made of high quality imported 18mm birch plywood, embedded slot structure, good rigidity, no sound staining. The speaker is designed with 16 M10 flying points, and the exquisite angle iron inside the cabinet ensures the safety and reliability of hanging.
Coaxial speaker TS66 as venue sound reinforcement
Soundking "4 main 1 backup" intelligent amplifier automatic seamless switching system to ensure the normal operation of the entire sound reinforcement system, can cover 25% of the probability of failure. And enable the Soundking of the British top brand CADAC digital mixer CDC6, analog mixer LIVE1 dual insurance system and CADAC DM1616 matrix audio processor to ensure a high level of sound reinforcement.
Automatic hot backup amplifier system
Born in 1968, CADAC has been the embodiment of high-quality audio mixing consoles, known as the "Rolls Royce" in the mixing console, as the legend of the recording industry, recorded countless legends, the Ministry of Science and Technology to enhance the culture of the project. CADAC products seamlessly integrate the performance advantages of digital and analog interface together, but also has a high degree of reliability and easy to maintain the traditional characteristics.
The CDC6 digital mixer is visually stunning with an optically laminated 23.5-inch 16:9 HD LCD touch screen and digital encoders below and to the right of it. The unique combination of touch screen and traditional encoder allows the user to control the console parameters with ease, naturally creating an intuitive touch and swipe usage.
Digital mixer CDC6
The analog mixer LIVE1, the first Cadac compact mixer design, is a fully customized one that inherits the company's tradition of analog technology and the sound quality that was once so impressive in the production of musical theaters and tours. LIVE1 delivers the core value of Cadac's superior audio technology to customers at a very cost-effective price, opening up a new market and application for professional analog mixers. The new mic amplifier design, using the latest engineering and component technology, elevates LIVE 1's audio performance to the level of the legendary large Cadac consoles, making the huge difference in price completely invisible. An industry-recognized patented Cadac four-band EQ with two sweep filters further makes Cadac's sound unparalleled, bringing out the most sensitive and musical characteristics of Cadac.
Analog mixer LIVE1
"For the sound reinforcement of mega stadiums with more than 10,000 people, sound clarity and system safety are the two main points of successful sound reinforcement design. Sound field design using neither centralized nor decentralized zoning sound supply method, because both ways have their advantages and disadvantages. We used six groups of line arrays for not far from the partitioned sound supply method, both to ensure the direct sound ratio to improve the clarity, while the sense of orientation of the sound also has a certain contribution. In addition, in terms of security design, the system link can not have major security risks, the signal process can not have a security bottleneck. So we use digital and analog dual-stage backup, decentralized DSP design, hot backup amplifier these techniques to improve the absolute security of the system. After overnight debugging, the main array tone is more balanced and natural, the audience direct sound ratio is high, the stadium sound field is quite uniform, for such a large volume of the stadium, its sound system sound quality has been very difficult. The sound texture is better and can give the audience an unprecedented beautiful listening experience." Lang Jun, the sound reinforcement system designer of Ningbo Olympic Sports Center said. He has presided over the design of sound amplification projects such as theatres and concert halls in nearly 100 large stadiums and gymnasiums. He is currently the Director of Engineering and Technology Center of Soundking Electro-Sound Co., Ltd., the Director of Technology Center of Shanghai Central-America-Asia Electro-Sound Equipment Co., Ltd., the stage audio expert of China Academy of Performing Equipment Technical Association, and the expert member of the Acoustic Professional Committee of China Stage Art Association
In addition to the stadium where the competition was held, the Ningbo Olympic Sports Center swimming pool has also been officially opened to the public. The swimming pool has a total construction area of 75,300 square meters, with 3,306 seats for spectators, a building height of 32 meters, two floors above ground and three floors locally. Equipped with two 50-meter standard pool, a standard diving pool, a 25-meter short pool, to meet the City Games competition, the National Swimming Championship and other domestic and international competitions.
Swimming pool exterior view
Swimming pool interior view
The venue sound reinforcement system adopts the concept of decentralized point arrangement, using 12 coaxial speakers TS-66, as the main sound reinforcement speaker in the auditorium; the speakers are all imported from Italy B & C units, horn type, woofer and tweeter coaxial installation, fine tone, good sense of sound image. Waterproof sound column as the main amplification speaker x in the swimming pool venue, the horizontal coverage angle is wide and the radiation distance is far.
Coaxial adjustable directional speaker TS-66 as the main sound reinforcement speaker for the audience
Waterproof column as the main amplification speaker in the swimming pool venue
Nowadays, the country is gradually implementing the strategy of "Healthy China", China's sports demand is accelerating the diversification of expansion, sports consumption accelerates to participation and ornamental consumption expansion, bearing the important main role of the sports industry - the development and construction of stadiums is in a very important transformation stage. The "multi-use" of a stadium has become the main trend of the future development of the stadium business, so it is also bound to support the corresponding grade and scale of the sound reinforcement system, to provide a reliable, high-speed and flexible environment for the use and management of the stadium.
Ningbo Olympic Sports Center, as a major people's livelihood project, is a new business card for Ningbo to talk to the world. Soundking has undertaken the sound reinforcement system project for Ningbo Olympic Sports Center, thanks to years of deep experience in the professional audio field. Soundking has served five world-class events: Beijing Olympic Games, Shanghai World Expo, Xi'an World Horticultural Expo, G20 Summit and Xiamen BRICS Conference. We have participated in the National Grand Theatre, China Central Opera House (new), Beijing Yanqi Lake International Convention and Exhibition Center and other major projects at home and abroad, and have rich practical experience in designing sound reinforcement systems for stadiums and other environments. Ningbo Olympic Sports Center, as a "home" project, is an excellent business card for Soundking products, and Soundking will take this as a starting point and incentive to participate more national and world projects.
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