Nowadays, the sound environment is no longer only considered as potential annoyance, but it is sometimes recognize for the qualities it can bear. The European directive 2002/45/CE, relative to the management of environmental noise, requires the european states to identify «quiet areas» for their preservation and valorization due to the resource they represent. It defines the «quiet areas» as areas preserved from the noise. In this context, numerous studies have shown that in the urban environments the parks and gardens are acclaimed by users for the quality of their soundscape, but those qualities have never been accurately identified. If the European directive seems to consider the sound quality according to a noise level and the ideas of agreement or disagreement, different fields of study on the sound environment, from the psychoacoustic to the atmosphere studies, have shown that the esthetic experience is way more complex. The sound environment is full of emotional values, semantic, functional and aesthetic values.The aim of our work is to accurately identify the sound qualities that seem specific to urban parks and gardens. The sound qualities are understood more from a descriptive than an hedonist point of view, through the study of the experience of users in six differents parks and gardens of the Parisan area. First, it present a description of the different aspects of the sound environment of the garden established from various kind of datas : observations, acoustic measurements, and interviews with users. The sound environment of the garden is presented through sound configurations, perceptual effects, representations it evokes, or through practices. To overcome the relationship between noise level and agreement, this work propose in a second time to highlight links between tangibles and intangibles aspects of the soundscape. Although the soundscape seems to fall within an immaterial dimension : sound and aesthetic experience of the users, we assume that it can be mastered by the designers, the acousticians or the urban planners if it is considered as an effect of material dimensions : landscape structures or acoustic indicators. This work approach the sound quality through the architectural diversity of the garden design. It propose to understand the relationships between the different sound qualities identified, the landscape structures and the acoustic measurments.
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