| Summary: | 碩士 === 輔仁大學 === 景觀設計學系碩士班 === 100 === Sensations other than visual ones are empirically less valued in the fields
of landscape design. The emergence and promulgation of soundscape and its
associated concepts have promoted a new wave of deleveraging the mainstream
focus on visuality. Soundscape transformed from a passive measure of noise
reduction to a proactive creation of high quality acoustic ambience. Thus far,
researches on soundscape primarily focus on the sound elements exist in the
environment. Much less effort is invested in analysis of the influences that a
particular object placement or establishment has on the sound environment. With
a nature of active source of sound, waterscape is a prevalently applied element in
landscape design. The subject of this research is waterscape and the influences of
which on the sound environment.
This research surveyed sixty sets of artificial waterscapes and the environments
those waterscapes situated in Taipei City. By classification, there are types
of single-layer waterfall, multiple-layer waterfall, fountain, fountain cluster,
running water fountain and mixed type waterscape. The efficacy of waterscape of
producing an acoustic sensation, as indicated by the research results, has a higher
correlation with the sound volume than with the type. In addition, the construction
and architectural design of the environment where waterscape is situated have
material influences on the acoustic ambience. Both 1/f Noise theory and sound
spectrum overlay chart evidence that waterscape is capable of improving the acoustic
ambience.
In the latter part of this research, quantitative methodology is applied in
differentiating the emotional preference of testing subjects’ toward the audio and
visual feature of artificial waterscapes and that of the original environment. The
results showed that (a) subjects preferred the audio effects on the artificial water
features than the original environment and improved positive emotions and reduce
negative emotions. (b) from the four artificial waterscapes, single-layer waterfall,
multiple-layer waterfall, fountain, fountain cluster, subjects preferred fountain
cluster the most in both positive emotions and the view of the landscape.
This preference is significantly different from that of the rest artificial waterscapes. The results
show that the use of artificial waterscapes with rhythm, melody, and clear signs can improve the
soundscape of the city open space. (C) multiple regression analysis to study subjects’ positive and
negative cognition over the landscape. The research results show that subjects can perceive more
positive emotions toward preferred landscape. This situation shows that by adding emotionally
positive-association sounds can enhance people’s preference for the landscape. In conclusion,
adding emotionally positive-association sounds in urban open space to improve people’s feeling is
an effective approach.
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