acoustical engineering Applications

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  • Keyword: acoustical engineering ×

Noise monitoring solutions for material testing

by Brüel & Kjær Sound & Vibration Measurement A/S     based in Nærum, DENMARK

With today`s growing focus on noise control issues and the emergence of sound quality as an important aspect of product design, acoustic material testing is becoming increasingly relevant to engineers, designers and manufacturers from a broad range of industries. Acoustic material testing is the process by which the acoustic characteristics of materials are determined in terms of absorption, reflection, impedance, and admittance, including transmission loss.

Noise monitoring for railways and trains

by Larson Davis, a division of PCB Piezotronics     based in Depew, NEW YORK (USA)

Controlling and monitoring railway and train noise in residential and urban areas is a critical function of a railway. The noise generated can be dependent upon the engine, rail cars, rail construction, train speed, and the horn. Modern high speed trains have also created new levels of high frequency noise that create an acoustic disturbance that sounds like an aircraft going by.

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