Sound

Isolation

Design of a highly customized vibration test facility

Sound

Isolation

Troubleshooting and

Retro-fit

HVAC

Noise

Control

and

Retro-fit

of a Video Production Facility

Good room

acoustics on a budget

Good Building Acoustics starts with...

....appropriately low ambient noise levels.  Ambient noise arises from interior sources like mechanical equipment and human activity, and from exterior sources like traffic, weather, and aircraft. 

Once the room is quiet enough for its intended purpose, the quality of room acoustics becomes a relevant factor.  A proper balance between speech intelligibility and musical support is critical, and the room should also be free of annoying echoes and/or other anomalies. 

Even a good sound system cannot be counted on to “save” a room with high noise levels or bad room acoustics.  Nelson Acoustics refers sound system and A/V services to capable colleagues.    

© 2011 Nelson Acoustics          All Rights Reserved

St. John Orthodox Church, Cedar Park, TX: Room Acoustics, Sound Isolation, and Mechanical Noise.  Special features: optimized reverberation time for voice-powered worship (both speech and singing), special wall design to project bass voices, quiet HVAC activated in stages (NC/RC-20, then 28), oversized grilles and ducts, vibration isolation of mechanical equipment, isolated cry room, plumbing connections and piping located away from worship space.....

photo credit: Crystal Wilson

Remodeling of a video stage inadvertently destroyed undocumented, critical noise-control elements  in the HVAC System.  Quieted from NC-36 to NC-19 (ambient) in a physically compact space.

Re-purposed building with wind tunnel in basement (!).  Analysis demonstrated that the noise was airborne and was entering the newly inhabited area via a hidden, disused ventilation duct.  Significant reduction without a lot of cost......

New construction of a state-of-the-art vibration testing laboratory.  Many of the vibration tests are extremely energetic, creating high sound levels and foundation vibration.  Executive offices are, of course, directly upstairs.  An acoustic test chamber is adjacent.  The criterion was “no audible or feelable impact in the rest of the building” and noise exposure protection for personnel.