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The definition of the term soundscape is itself not settled for the purposes of this project, we have defined it as “the totality of all sounds within a location with an emphasis on the relationship between individual’s or society’s perception of, understanding of and interaction with the sonic environment.”Ĥ This review highlights that a range of methodological approaches have been used to establish classifications and categorisations of sounds and soundscapes. interviews with five key soundscape experts.Īnalysis of this data was conducted to identify significant gaps in the knowledge base and suggest a way of obtaining a practical soundscape assessment method.ģ Soundscapes were found to be a highly multi-disciplinary topic, with many different ideas, concepts, aims and methods evident in the literature. an analysis of 15 case studies of soundscape design, and an analysis of 27 case studies of soundscape assessment, a survey of more than 500 papers in the academic literature, The results and their effects on future vehicle exterior noise will be presented and discussed.ġ The aim of this review was to investigate existing research into soundscape concepts and to produce recommendations for future research into the practical identification, management and enhancement of soundscapes in urban areas.Ģ Existing research on soundscapes was investigated using four methods: The previously introduced procedure for the synthesis of pass-by noise from the single components has been tested on modified vehicles. Research has been performed on the question in which way the single vehicle components influence the dominating elements of the exterior noise. More detailed and comprehensive statements about the "sound quality" of exterior noise can be achieved. The results allow further investigations in comparison to the usual determination of the A-weighted sound pressure level under standardized pass-by conditions (ISO 362). Objective descriptors based on subjective evaluation and measurements of physiological reactions have been developed. The aim of the European research project SVEN (Sound Quality of Vehicle Exterior Noise, G6RD-CT-1999-00113) is the development of new methods for the assessment of exterior noise of single vehicles as well as - in the sum - the resulting traffic noise.