Ecological Validity of Immersive Virtual Reality (IVR) Techniques for the Perception of Urban Sound Environments

Xu, Chunyang; Oberman, Tin; Aletta, Francesco; Tong, Hanxing; Kang, Jian

doi:10.3390/acoustics3010003

Cited by 21 publications

(15 citation statements)

References 78 publications

(154 reference statements)

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“…Evidence of the success of the economic activity is found in the achievement of local community welfare in the form of employment accessibility, equitable distribution of economic policies, procurement of infrastructure in the form of Education and Health infrastructure, and ensuring individual security. This evidence in activities is shown with the help of the 360 0 VR projection area, emphasizing the formation of immersive experiences [32] with active and independent activities through manipulating the virtual environment as a contextual learning environment for students.…”

Section: Resultsmentioning

confidence: 95%

Geography Virtual Reality for Learning About Ecotourism and Rural Sustainability

Putra¹,

Islam²,

Hilmi³

et al. 2022

KSS

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Tourism has an essential role in economic development through improving people’s welfare. However, tourism activities are vulnerable to global issues, one of which is the COVID-19 pandemic. Social restrictions on economic activity have implications for the sustainability of tourism. One effective strategy to maintain tourism sustainability in regional development can be achieved through education channels by packaging the concept of tourism into virtual reality (VR) 3600-assisted learning materials. This study aimed to develop VR 360∘ media in supporting geography learning on sustainable ecotourism. This was development research using the PLOMP model, which consisted of 3 stages: (1) preliminary research; (2) prototype design and development; and (3) evaluation. The results showed that the VR 3600 media helped the student’s learning process actively and independently through interaction with 3600 panoramic projections and multimedia. Immersive learning experiences involving complex thinking and contextual reflection were formed through the VR 360∘-assisted learning activities with learning outcomes of a) information literacy, b) exploration, and c) reflection on the content of sustainable ecotourism. Learning activities engaged through the virtual environment are expected to foster a good understanding in the student environment of the importance of managing and developing ecotourism in supporting rural sustainability. Keywords: mobile immersive, geography, virtual reality 360∘, ecotourism, rural sustainability

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Section: Resultsmentioning

confidence: 95%

Geography Virtual Reality for Learning About Ecotourism and Rural Sustainability

Putra¹,

Islam²,

Hilmi³

et al. 2022

KSS

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“…Another key aspect to evaluate our results is their ecological validity. As reported in Xu et al 44 , this parameter “describes the degree to which results obtained in a controlled experiment are related to those obtained in the real world”. To maximise this aspect, (1) we designed our experiment taking inspiration from studies which had found the same localisation error using a dome of speakers in the “real” and in the virtual world 7 ; (2) we targeted the number of participants to a statistical power of 90%, to make sure that even smaller effects were captured and minimise false results (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…S6 ). According to Xu et al 44 , a higher ecological validity could be achieved by using head-mounted displays and Ambisonics playback. Having found only a minor effect of the type of headphones worn by the participants (see Fig.…”

Section: Discussionmentioning

confidence: 99%

Sound localization in web-based 3D environments

Rajguru

Brianza

Memoli

2022

Sci Rep

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Sound delivery is a key aspect of immersivity in virtual and augmented reality (VR/AR), with studies hinting at a correlation between users’ ability to locate sounds around them and the ‘feeling of being there’. This is particularly true for WebVR, a method of delivering immersive experiences through a local web browser that has recently captured attention in multiple industries. In WebVR, audio is the main spatial cue. Designers need to select the correct number of sound sources so that users perceive the location of incoming sound correctly. Information on how users localize sound is essential. Sound localization experiments, so far, have been run only in empty spaces or closed rooms, without clear indications for designers in WebVR. Thus, in this study, we investigate sound localization directly through WebVR. To do so, we designed a traditional empty room for training and a city-like virtual environment for testing purposes. In our paper, we also discuss key design parameters, differences in perception for vertical and horizontal directions, the impact of training, and the role of changing virtual environments. In addition, we introduce and test a new sound cue along with the traditional pink noise sound to measure and explore the impact of different sound cues in different environments. The results demonstrate the potential of exploring sound localization using WebVR, and our study will support the development of virtual experiences in human-computer interaction that may be able to reach a large number of participants using a local web browser.

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“…Lately, IVR (Immersive Virtual Reality) techniques has been also used for these perceptual evaluations, as it is shown in [38]. These systems strongly rely on sound binaural techniques in order to give to the user the spatial audio impression of the scene.…”

Section: Binaural Evaluation Of Soundscapesmentioning

confidence: 99%

Integration of DevOps Practices on a Noise Monitor System with CircleCI and Terraform

Romero¹,

Camacho

Montenegro

et al. 2022

ACM Trans. Manage. Inf. Syst.

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Lowering pollution levels is one of the main principles of Sustainable Development goals dictated by the United Nations. Consequently, developments on noise monitoring contribute in great manner to this purpose, since they give the opportunity to governments and institutions to maintain track on the matter. While developing a software product for this purpose, with the growth in terms of functional and non-functional requirements, elements such as infrastructure, source code and others also scale up. Consequently if there are not good practices to face the new challenges of the software product, it could become more complex to refactor, maintain and scale, causing a decrease on delivery rate and the quality of the product. DevOps is an emerging concept but still hazy, which involves a set of practices that helps organizations to speed up delivery time, improve software quality and collaboration between teams. The aim of this paper is to document the implementation of some DevOps practices such as IaC, continuous integration and deployment, code quality control and collaboration on a noise monitor system to increase the product quality and automation of deployment. The final result is a set of automated pipelines which represents the entire integration and deployment cycle of the software integrated with platforms to improve quality and maintainability of the software components.

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Ecological Validity of Immersive Virtual Reality (IVR) Techniques for the Perception of Urban Sound Environments

Cited by 21 publications

References 78 publications

Geography Virtual Reality for Learning About Ecotourism and Rural Sustainability

Geography Virtual Reality for Learning About Ecotourism and Rural Sustainability

Sound localization in web-based 3D environments

Integration of DevOps Practices on a Noise Monitor System with CircleCI and Terraform

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