A power company contacted Unger Acoustical Consulting regarding noise complaints from a residential area close to the company’s transformer station. The customer attempted to erect a plywood barrier to help “stop” the noise. This was met with very little success. Unger Acoustical Consulting was then hired to conduct a Sound Survey for Transformers and Reactors. […]
A manufacturing plant contacted Unger Acoustical Consulting, Inc. to review noise exposure from several of its variable frequency belt-driven centrifugal fans. We conducted sound level readings around the Chicago Blowers and noted low and mid-frequency levels between 90-91 dB(A), 5 feet from the fans. Our client expressed a need to access the machines for routine […]
Unger Acoustical Consulting was contacted by a Church Administrator in regards to noise issues they are having in their Multi-Purpose room. The administrator explained that they use this large room for basketball, athletic activities, musical performances, church breakfasts and occasionally church services. The noise issues they are experiencing in the space are distorted music, garbled […]
Unger Acoustical Consulting has been involved with several outdoor HVAC chiller noise applications. Air cooled chillers with rotary screw compressors present the largest challenge for adequate noise control because of the multiple sound sources and the tonal quality of the noise. Below are some actual case histories of Unger’s involvement with outdoor environmental noise control […]