Noise Research
- Ongoing Research Efforts
- Optimized Profile Descent
- Future Outlook: A Quieter Airplane Design
- Useful metrics for analyzing aircraft noise
- PARTNER Project 44: Aviation-Related Noise Effect on the Elderly
- PARTNER Project 19: A Review of the Literature Related to Potential Health Effects of Aircraft Noise
- A Pilot Study on Aircraft Noise and Sleep Disturbance
- Noise Emission and Propagation Modeling
- Rotorcraft Noise Abatement Operating Conditions Modeling
- Analytical Approach for Quantifying Noise from Advanced Operational Procedures
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:
- Final Report for Estimation of Noise Level Reduction, ASCENT Project 4A
- Measuring Noise Level Reduction Using an Artificial Noise Source
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: