3d Photogrammetry for Auralization -an Approach to Geometry Simplification and Material Categorizat Ion

Llorca-Bofí, Josep; Heck, Jonas; Vorländer, Michael

doi:10.26868/29761662.2022.50

Cited by 2 publications

(5 citation statements)

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“…The development of the 3D model can be done in a variety of ways. The use of photogrammetric surveys to characterize an acoustic space has become a recently explored avenue [18,19]. This technique is thought to respect important conditions for correct acoustic simulations.…”

Section: D Spatial Modelmentioning

confidence: 99%

“…This technique is thought to respect important conditions for correct acoustic simulations. Furthermore, visual texture information from the photogrammetric process can be used to optimize the surface material assignment [19].…”

Section: D Spatial Modelmentioning

confidence: 99%

“…For one, the quality of the sample data is highly dependent on factors such as camera characteristics, light conditions, number of photos taken. In general, the dense point cloud resulting from the raw photogrammetry data is far too dense for virtual acoustic applications [19]. Furthermore, implicit uncertainties of the sample point coordinates make it so that important characteristics of the space are lost.…”

Section: D Spatial Modelmentioning

confidence: 99%

“…For example, the mesh nodes on a given flat surface may not be coplanar, or perpendicular surfaces may not be constructed from perpendicular polygons. Mesh decimating algorithms can be applied to partially address these issues [19,21]. However, strict mesh reduction requirements may compromise important details of the geometry.…”

Section: D Spatial Modelmentioning

confidence: 99%

“…Some advantages and disadvantages of such an approach are summarized in Section 4.2. The texture data can also potentially be used to categorize the 3D model's surfaces in terms of acoustic properties [19].…”

Section: D Spatial Modelmentioning

confidence: 99%

See 4 more Smart Citations

Real-world study cases for auralization validation: selection, measurements, and methods

Fatela,

Maffei,

Masullo

et al. 2022

Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023

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Recent advances in the development of plausible environmental noise auralization tools are making way for their implementation in practical applications. In particular, increasingly realistic air traffic noise auralization frameworks are being developed. These could become powerful tools for assisting decision-making in architectural and urban planning projects, by allowing users to perceive and experiment with the impact of their design choices on noise mitigation. However, the auralization models must be validated before such solutions can be implemented. By comparing human impressions of the recorded spatial audio of a given real-world scenario versus a synthesized auralization of the same scenario, the quality of the models can be evaluated in terms of human perception. This paper presents a methodology to select and virtually model real-world urban scenarios for validation of air traffic auralization tools in an urban environment. First, the relevant principles behind a meaningful study case selection are proposed. Then, the necessary measurements for the definition of the virtual scenarios, and an optimized workflow for data gathering, are presented. The inner city of Naples, Italy, provides the setting for this study due to its proximity to Naples-Capodichino International airport (NAP).

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Section: D Spatial Modelmentioning

confidence: 99%

Section: D Spatial Modelmentioning

confidence: 99%

Section: D Spatial Modelmentioning

confidence: 99%

Section: D Spatial Modelmentioning

confidence: 99%

Section: D Spatial Modelmentioning

confidence: 99%

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Real-world study cases for auralization validation: selection, measurements, and methods

Fatela,

Maffei,

Masullo

et al. 2022

Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023

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Archaeoacoustics around the World: A Literature Review (2016–2022)

2023

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Acoustics has been integrated with archaeology to better understand the social and cultural context of past cultures. Specifically, public events such as rituals or ceremonies, where an appreciation of sound propagation was required to hold an event. Various acoustic techniques have been used to study archaeological sites, providing information about the building characteristics and organizational structures of ancient civilizations. This review aims to present recent advances in Archaeoacoustics worldwide over the last seven years (2016–2022). For this purpose, one hundred and five articles were identified and categorized into two topics: (1) Archaeoacoustics in places, and (2) Archaeoacoustics of musical instruments and pieces. In the first topic, three subtopics were identified: (1) measurement and characterization of places, (2) rock art, and (3) simulation, auralization, and virtualization. Regarding the first subtopic, it was identified that the standards for reverberation times in enclosures are generally applied in their development. In the second subtopic, it was determined that the places selected to make paintings were areas with long reverberation time. The last subtopic, simulation, auralization, and virtualization, is the area of most remarkable growth and innovation. Finally, this review opens the debate to seek standardization of a measurement method that allows comparing results from different investigations.

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3d Photogrammetry for Auralization -an Approach to Geometry Simplification and Material Categorizat Ion

Cited by 2 publications

References 0 publications

Real-world study cases for auralization validation: selection, measurements, and methods

Real-world study cases for auralization validation: selection, measurements, and methods

Archaeoacoustics around the World: A Literature Review (2016–2022)

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