Perceptual response analysis based on psychoacoustical changes on acoustic scenes of urban soundscapes
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Book
Category
Book
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Publication Year
2024
Abstract
Over the last ten years, researchers have been concerned about the influence of geometrical features and the use of different materials on the soundscapes of urban scenarios. This study aims to investigate how the overall composition of a soundscape should sound from the perspective of the quality of sound sources. With the help of a soundscape reference, the investigated scenarios were recorded and reproduced randomly for 39 participants in a listening experiment. Afterwards, the same samples were reproduced with alterations in the sound features by lowering or increasing psychoacoustic components, e.g., loudness, sharpness, roughness, fluctuation strength and tonality. The participants provided, through a continuous slide scale, perception responses for the following soundscape dimensions 1) intensity; 2) comfort; 3) annoyance; 4) restoration; 5) pitch; 6) variety; 7) naturalness; 8) harmony. The characterization of the psychoacoustic alteration of the sound features was done through descriptive analysis, and non-parametric tests were performed to verify how different the altered soundscape samples were from the reference samples. To complement, a Sankey diagram was used, which showed how the perceptual responses were distributed regarding the sound preferences of the participants.
Number of Copies
1
Library | Accession No | Call No | Copy No | Edition | Location | Availability |
---|---|---|---|---|---|---|
Main | 759 | 1 | Yes |