Seeing urban development
Seeing overhead light pollution
Hearing lots of people
Seeing low-flying aircraft
Hearing low-flying aircraft
Seeing power lines
Seeing towns and cities
A physical description of the soundscape is one input to the assessment of the human experience, even though it may be described as an overall good experience, as a preference, or as a tranquil environment. One has to distinguish clearly between man-made sounds and natural sounds in determining their acoustical impact in rural and naturally quiet areas. Amplitude and duration are also important. For example, a bubbling brook and waves crashing into the seacoast may, on average, be equally preferable, even though the amplitude of the latter is much greater than the amplitude of the former.
CPRE, 1995. Tranquility. Campaign to Protect Rural England. Available online at http://www.cpre.org.uk/campaigns/landscape/tranquillity.
Lam, K-C., K-C. Chau, L.M. Marafa, and L. Brown. 2008. Human Preference for Countryside Soundscapes. Presentation at INTER-NOISE 2008, The 2008 International Congress and Exposition on Noise Control Engineering, Shanghai, China, October 26–29. Available online at http://scitation.aip.org/journals/doc/INCEDL-home/cp/.