Hunan TV Uses Genelec for China’s First Dolby ATMOS Equipped OB Truck

One of the largest television broadcasters in China, Hunan TV, has built the first Chinese OB truck capable of producing Dolby ATMOS 5.1.4 sound using Genelec audio monitors.

Leading Chinese systems integrator NDT Group worked closely with Long Hongliang, Hunan TV’s senior recording engineer, on both the design and integration of the truck’s audio systems. “This project represents a milestone for Hunan TV, as well as a significant step forward for Chinese broadcasting,” Hongliang said. “There could be no compromise on the equipment chosen.”

The interior of the vehicle is split into four zones: the main mixing area, the broadcast area, equipment racks and storage. The vehicle’s constrained dimensions mean that optimal loudspeaker placements were not technically possible, particularly for the surround and height speakers.

The lack of internal space also meant that it was unrealistic to apply more than a limited amount of sound isolating treatment, and in its untreated form the vehicle suffered from an imbalance of midrange and low frequencies, leading to a somewhat “boomy” sound.

To solve these problems, Hongliang turned to Genelec SAM monitors, which integrate with GLM software to allow the entire monitoring system to be calibrated for an optimal listening environment. Occupying the LCR speaker positions are three 8351s, the largest of Genelec’s The Ones series of three-way coaxial monitors.

They are joined in the left and right surround positions by two 8240 two-way monitors, while four compact 8320 two-way monitors are installed discreetly in the vehicle’s ceiling. With an enclosure depth of less than six inches, these monitors are easily contained within the roof space.

Adding a solid low frequency foundation to the truck’s immersive system are two Genelec 7260 SAM subwoofers. Via GLM, users can switch between monitor configurations and surround formats at the touch of a button. It moves from basic stereo to surround and up to ATMOS.

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