Like its broadcast studios, XM's control room and performance studio configurations were vetted by Northeastern Communications Concepts. The Francis Daniel Consulting Alliance provided the acoustical design that critically tuned the interiors of the performance studio and control room. Eagle EKSC designed the audio monitoring system. Acoustic Systems built the studio shell. Studios Architecture

Photo illustrates blue OptiCurveŽ (left) and custom Binary Amplitude Diffsorber utilizing FlutterFreeŽ (on wall in front of chairs). Also seen in the ceiling are RPG Diffractals in checkerboard orientation.

served as overall project architect and James G. Davis Construction Corp. as the general contractor. Tony Masiello, XM Vice President of Operations, helped design the performance suite and oversaw construction.

XM's Live Performance Studio has an assortment of acoustically diffusive and absorptive surfaces provided by RPG Diffusor Systems. RPG provided an optimized Fiber-Reinforced Gypsum OptiCurveŽ two-tone blue wall, which consists of two out-of-phase curved tiers. The curved wall was optimized using RPG's Shape Optimizer in collaboration with Francis Daniel Consulting Alliance to provide uniform diffusion of the sound throughout the room.

Another feature of the performance area is the Binary Amplitude Diffsorber shown on the far wall, which utilized

Omniffusors can be seen on front control room wall above speakers.

FlutterFreeŽ planks. The diffsorber simultaneously provides diffusion and absorption to control levels and diffusion. The ceiling was treated with RPG's Diffractals in a checkerboard array to further promote uniform scattering of the sound from the live performance.

Because of the uncolored acoustic characteristic of the non-environmental control room, the monitoring system can be programmed to simulate the characteristics of practically any acoustical environment and monitor system familiar to guest engineers or preferred by house mixers. RPG Omniffusors seen on the front wall of the control room above the loudspeakers were utilized as an ingredient in the neutral control room design.