Bundesvereinigung gegen Fluglärm e.V. BVF is the representant of people by Art. 32 German air traffic law. Site has extensive information about airport and aircraft noise, noise protection and other aspects of air traffic, and links to other sites. Mostly in German, some English.
The NCA has the largest educational and research programs in the field and is a state-of-the-art Audiology and hearing science teaching, research, and clinical service. London, Ontario, Canada.
The Institute of Noise Control Engineering of the USA is a professional organization. A primary purpose of the Institute is to promote engineering solutions to environmental noise problems.