Noise Research

PARTNER Project 44: Aviation-Related Noise Effect on the Elderly

The ASCENT sponsored Estimate of Noise Level Reduction project is now completed. NLR provides an estimate of how much the interior noise level will be reduced by the construction type of the building. It is a single-number metric used to quantify the ability for a building or building element to reduce the transmission of external sound generated by aircraft.

Researchers working on Part A simulated aircraft flyover noise using a loudspeaker array located around a test house. The measurements and models were used to evaluate and compare various noise level reduction (NLR) approaches. See:

The Part B researchers assessed the use of phased array of microphones for Noise Level Reduction (NRL) measurements, which can potentially make an improvement on the current ASTM standards E 966-10. For more information see: