noise and vibration measurement

ABD Engineering & Design is an independent acoustical engineering and audiovisual design firm founded in 1962, with offices in Grand Rapids, Michigan and Portland, Oregon. The firm provides consulting in architectural acoustics, environmental and industrial noise and vibration control, and audiovisual systems design for architects, building owners, facility managers, and municipalities across the United States, Canada, and other international markets.

acoustical designacoustical engineeringaudio/visual systems designAV infrastructure planning and designAV technology master planningmeasurementmodelingnoise and vibration isolationnoise and vibration mitigation

Blue Ridge Research and Consulting, LLC (BRRC) is an acoustical engineering firm focused on critical noise and vibration challenges for Department of Defense, aerospace, aviation, and industrial clients. BRRC delivers solutions to acoustic and vibration projects, with expertise ranging from military and civilian environmental noise studies to the design of custom measurement systems and the development of mission planning tools.

acoustical engineeringAcoustic modelingaeroacousticsarray signal processingcomputational fluid dynamics (CFD)environmental impact studiesGIS data analysismachine learningsoftware development

Cross-Spectrum Acoustics Inc. (CSA) is a full service noise and vibration consulting firm formed in 2011 by Herbert Singleton and Lance Meister, based in Massachusetts, Utah and California and serving clients across the United States and Canada. CSA provides noise, vibration and acoustical services to Federal, state, municipal, industrial and residential clients, and holds DBE/MBE certifications in eighteen states and the District of Columbia.

acoustical modelingarchitectural acousticsenvironmental noise assessmentGIS analysisHVAC commissioning measurementsnoise and vibration mitigation designsound insulation assessmentspeech intelligibility predictiontraining