HVAC noise is carefully controlled in production rooms, usually restricting NC levels to 20 or below. Sound isolation between studios and controls rooms is also critical in facility design and we achieve STC levels in the high 60's or better carefully isolating all flanking paths for vibration.

Of course, every facility doesn't require extreme levels of isolation. Small production facilities or project studios can function well when built with standard materials and techniques if careful attention is paid to the design. We use three dimensional computer modeling for all audio projects with ray tracing, RT60 and frequency response predicted prior to construction. We have a data-base of thousands of materials for reverberation control and some proprietary designs for sound shaping modules which we have tested at NRC. Using this database we can produce simulations accurate to a tenth of a second in RT. Wall designs for sound isolation are also all tested assemblies, using standard construction methods and materials, which simplifies the construction and process and controls costs.