year 12, Issue 2 (Journal of Acoustical Engineering Society of Iran 2025)
مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025, 12(2): 36-49 |
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Shafaei B. A proposed methodological framework for urban soundscape studies based on objective and subjective assessments. مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025; 12 (2) : 4
URL: http://joasi.ir/article-1-299-en.html
URL: http://joasi.ir/article-1-299-en.html
Abstract: (84 Views)
The concept of soundscape represents a new area of acoustic studies focusing on the quality of sound experienced in urban environments. In this field, alongside quantitative variables, qualitative and perceptual components are also assessed. Establishing a scientific relationship between the objective and subjective components of urban soundscapes remains a significant gap in existing research and a concern for scholars in this field. This study examines the soundscape literature regarding tested objective and subjective variables, data collection tools and methods, data analysis techniques, and the unidirectional or bidirectional relationships among these variables. With a thorough understanding of the methodology underpinning soundscape research, this paper proposes a framework for a methodological approach to urban soundscape studies based on the simultaneous assessment of both objective and subjective components. Sound Pressure Level (SPL) and Reverberation Time (RT) are introduced as key quantitative acoustic variables for objective assessments. These variables reflect the acoustic behavior of spaces, and optimal tools for measuring them are specified in the paper. For subjective assessments, the use of questionnaires is suggested to evaluate soundscape descriptors such as sound preferences, soundscape quality, and acoustic comfort on a Likert scale. Ultimately, the relationship between objective and subjective components in soundscape perception is elucidated, along with how these relationships are influenced by other mediating components shaped by the nature of urban spaces. Notably, merely adhering to standard values of SPL and RT is insufficient to establish acoustic comfort, pleasantness, and overall soundscape desirability. Instead, a range of mediating components significantly influences the perception of the sonic environment in urban spaces. Therefore, the soundscape of each urban area must be studied within its own context.
Article number: 4
Type of Study: Research |
Subject:
Psycoacoustics
Received: 2024/09/10 | Accepted: 2025/01/28 | Published: 2025/03/18
Received: 2024/09/10 | Accepted: 2025/01/28 | Published: 2025/03/18
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