Application of Auralisation and Soundscape Methodologies to Environmental Noise

The thesis investigates how auralisation and qualitative research methodologies developed
in the field of soundscape research, may be applied to the issue of environmental
noise in urban areas. The project brings together research and assessment
methodologies from traditionally distinct areas in acoustics, and attempts to develop
a multidisciplinary approach to solving noise related urban design problems. Within
this process, the author also explores the theory that part of a sustainable solution to
noise annoyance lies in challenging negative attitudes to noise, particularly in urban
environments, where attempts to reduce sound pressure levels are either not feasible
or inappropriate.
To demonstrate the application of the approach, a case-study is presented involving
the auralisation and subjective evaluation of a real-world soundscape before and after
the insertion of a sonic crystal noise barrier. The results of the case-study suggest that,
with minimal adaptation, certain soundscape assessment methodologies are compatible
with virtual acoustic environments. This leads to the conclusion that, using the
virtual assessment methodology, one is able to predict with reasonable accuracy the
impact of various physical types of noise intervention on the perceived sound quality
in urban environments prior to their construction. The author also argues that a greater
awareness and appreciation for the multiplicity of sound in urban environments might,
in conjunction with sustainable noise control strategies, over more long-term benefits
to society than over-speculation concerning the adverse effects of noise.