Browsing by Author "Dalirnaghadeh, Donya"

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Open Access
A corpus-based approach to define Turkish soundscapes attributes
(Acoustical Soc Amer Amer Inst Physics, 2023-03) Yılmazer, Semiha; Dalirnaghadeh, Donya; Fasllija, Ela; Alimadhi, Enkela; Şahin, Zekiye; Mercan, Elif
Embargo
A principal component model to identify Turkish soundscapes’ affective attributes based on a corpus-driven approach
(Elsevier, 2023-06-30) Yılmazer, Semiha; Fasllija, Ela; Alimadhi, Enkela; Şahin, Zekiye; Mercan, Elif; Dalirnaghadeh, Donya
This study focused on achieving linguistic and culturally appropriate equivalents of Turkish soundscape attributes present in ISO 12913–3 by incorporating a Corpus-Driven Approach (CDA). A two-phase experiment was set up to find Turkish equivalents of affective quality attributes. The first phase consisted of the formation of a Corpus. An online questionnaire was prepared and sent to 196 native Turkish speakers from all around Türkiye to define adjectives. The second phase of the experiment was performed in a listening room. For this purpose, twenty-four binaural sound recordings were collected from seven public spaces. Afterward, forty individuals evaluated the recordings by using the attributes from Phase 1. The perceptual dimensions were obtained from the generated corpus in Turkish based on a rating scale by applying the Principal Component Analysis (PCA). Results indicated a two-dimensional model with two main components, Pleasantness and Eventfulness. Each component is associated with a main orthogonal axis denoted by ‘annoying-comfortable’ and ‘dynamic-uneventful,’ respectively. This circular organization of soundscape attributes is supported by two derived axes, namely ‘chaotic-calm’ and ‘monotonous-enjoyable’, rotated 45°on the same plane. Additionally, by using Spearman's rank correlation coefficient, sixty-four different bipolar adjective pairs were found. The adjective pairs showed that the highest correlations are mainly on the pleasant-unpleasant continuum, namely Component 1 of PCA. The collected data were also analyzed using Agglomerative Hierarchical Cluster analysis with the Ward method in R programming language to cluster the adjectives. The results inferred that there are four top-level categories. From the first to the fourth level, categories consisted of pleasant, uneventful, eventful, and annoying adjectives, respectively. Moreover, the terms grouped on the first cluster found their dichotomous on the fourth cluster, while maintaining the same relationship in the pleasant-unpleasant continuum.
Open Access
The effect of sound environment on spatial knowledge acquisition in a virtual outpatient polyclinic
(Elsevier, 2021-12-28) Dalirnaghadeh, Donya; Yilmazer, Semiha
This study examines the impact of the sound environment on spatial knowledge acquisition in a virtual outpa- tient polyclinic. Outpatient polyclinics have a salient role in determining early outpatient treatments of COVID- 19 to prevent hospitalization or death and reduce the burden on hospitals. However, they have not been widely investigated in the literature. The studies on spatial knowledge have identified environmental elements mainly related to vision with no focus on sound. Currently, there is limited research on the effect of sound environment on spatial knowledge acquisition in virtual outpatient polyclinics. In this study, a virtual simulated outpatient polyclinic has been created with varying levels of visual and audio cues. Eighty participants were assigned to one of the four groups: a control (no visual signage), a visual (visual signage), an only audio (no landmarks and no visual signage), and an audio-visual group. The virtual environment was presented as a video walkthrough with passive exploration to test spatial knowledge acquisition with tasks based on the landmark-route-survey model. The results showed that a combination of visual signage and sound environment resulted in higher spatial knowledge acquisition. No significant difference was found between the performance of the visual group and the control group that shows that signage alone cannot aid spatial knowledge in virtual outpatient polyclinics. Data from the only audio group suggests that landmarks associated with sound can compensate for the lack of visual landmarks that may help design a wayfinding system for users with visual disabilities.
Open Access
The effect of the sound environment on spatial knowledge acquisition in a virtual outpatient polyclinic
(2022-05) Dalirnaghadeh, Donya
This study examines the impact of the sound environment on spatial knowledge acquisition in a virtual outpatient polyclinic. Outpatient polyclinics have a critical role in determining early outpatient treatments to prevent hospitalization or death and reduce hospital burden. However, they have not been widely investigated in the literature. The studies on spatial knowledge have identified environmental elements mainly related to vision with no focus on sound. Currently, there is limited research on the effect of the sound environment on spatial knowledge acquisition in virtual outpatient polyclinics. In this study, a virtually simulated outpatient polyclinic has been created to analyze the effect of varying levels of visual and audio cues. Eighty participants were randomly assigned to one of the four groups: a control (no visual signage and no sound), a visual (visual signage), an only audio (no landmarks and no visual signage), and an audio-visual group (visual signage, landmarks and sound). The virtual environment was presented as a video walkthrough with passive exploration to test spatial knowledge acquisition with tasks based on the landmark-route-survey model. The results showed that a combination of visual signage, landmarks, and the sound environment resulted in higher spatial knowledge acquisition. No significant difference was found between the performance of the visual group and the control group, which shows that signage alone cannot aid spatial knowledge in virtual outpatient polyclinics. Data from the only audio group suggests that landmarks associated with sound can compensate for the lack of visual landmarks that may help design a wayfinding system for users with visual disabilities.