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Following the successful first Urban Sound Symposium held at Ghent University in 2019, the second edition in 2021 had to face the challenges of the pandemic. The symposium turned this challenge into an opportunity for giving easier access to practitioners and experts from around the globe who are confronted with urban sound in their professional activities. It was organized simultaneously in Ghent, Montreal, Nantes, Zurich, London and Berlin by researchers at Ghent University, Mc Gill University, Université Gustave Eiffel, EMPA, University College London and TU Berlin. The online event created opportunities for interaction between participants at poster-booths, virtual coffee tables, and included social activities.
Dick Botteldooren; Timothy Van Renterghem; Catherine Guastavino; Arnaud Can; André Fiebig; Jean-Marc Wunderli; Jian Kang; Francesco Aletta. Abstracts of the Second Urban Sound Symposium. Proceedings 2021, 72, 4 .
AMA StyleDick Botteldooren, Timothy Van Renterghem, Catherine Guastavino, Arnaud Can, André Fiebig, Jean-Marc Wunderli, Jian Kang, Francesco Aletta. Abstracts of the Second Urban Sound Symposium. Proceedings. 2021; 72 (1):4.
Chicago/Turabian StyleDick Botteldooren; Timothy Van Renterghem; Catherine Guastavino; Arnaud Can; André Fiebig; Jean-Marc Wunderli; Jian Kang; Francesco Aletta. 2021. "Abstracts of the Second Urban Sound Symposium." Proceedings 72, no. 1: 4.
The deployment of measures to mitigate sound during propagation outdoors is most often a compromise between the acoustic design, practical limitations, and visual preferences regarding the landscape. The current study of a raised berm next to a highway shows a number of common issues like the impact of the limited length of the noise shielding device, initially non-dominant sounds becoming noticeable, local drops in efficiency when the barrier is not fully continuous, and overall limited abatement efficiencies. Detailed assessments of both the objective and subjective effect of the intervention, both before and after the intervention was deployed, using the same methodology, showed that especially the more noise sensitive persons benefit from the noise abatement. Reducing the highest exposure levels did not result anymore in a different perception compared to more noise insensitive persons. People do react to spatial variation in exposure and abatement efficiency. Although level reductions might not be excessive in many real-life complex multi-source situations, they do improve the perception of the acoustic environment in the public space.
Timothy Van Renterghem; Francesco Aletta; Dick Botteldooren. Changes in the Soundscape of the Public Space Close to a Highway by a Noise Control Intervention. Sustainability 2021, 13, 5284 .
AMA StyleTimothy Van Renterghem, Francesco Aletta, Dick Botteldooren. Changes in the Soundscape of the Public Space Close to a Highway by a Noise Control Intervention. Sustainability. 2021; 13 (9):5284.
Chicago/Turabian StyleTimothy Van Renterghem; Francesco Aletta; Dick Botteldooren. 2021. "Changes in the Soundscape of the Public Space Close to a Highway by a Noise Control Intervention." Sustainability 13, no. 9: 5284.
Behavioral studies on auditory deviance detection in patients with Parkinson’s disease (PD) have reported contradictory results. The primary aim of this study was to investigate auditory deviance detection of multiple auditory features in patients with PD by means of objective and reliable electroencephalographic (EEG) measurements. Twelve patients with early-stage PD and twelve age- and gender-matched healthy controls (HCs) were included in this study. Patients with PD participated without their regular dopaminergic medication. All subjects underwent an audiometric screening and performed a passive multi-feature mismatch negativity (MMN) paradigm. Repeated-measures analysis of variance (ANOVA) demonstrated no significant differences between patients with PD and HCs regarding MMN mean amplitude and latency for frequency, duration and gap deviants. Nevertheless, a trend towards increased MMN mean amplitude and latency was found in response to intensity deviants in patients with PD compared to HCs. Increased intensity MMN amplitude may indicate that more neural resources are allocated to the processing of intensity deviances in patients with PD compared to HCs. The interpretation of this intensity-specific MMN alteration is further discussed in the context of a compensatory mechanism for auditory intensity processing and involuntary attention switching in PD.
Evelien De Groote; Annelies Bockstael; Dick Botteldooren; Patrick Santens; Miet De Letter. Evaluation of multi-feature auditory deviance detection in Parkinson’s disease: a mismatch negativity study. Journal of Neural Transmission 2021, 128, 645 -657.
AMA StyleEvelien De Groote, Annelies Bockstael, Dick Botteldooren, Patrick Santens, Miet De Letter. Evaluation of multi-feature auditory deviance detection in Parkinson’s disease: a mismatch negativity study. Journal of Neural Transmission. 2021; 128 (5):645-657.
Chicago/Turabian StyleEvelien De Groote; Annelies Bockstael; Dick Botteldooren; Patrick Santens; Miet De Letter. 2021. "Evaluation of multi-feature auditory deviance detection in Parkinson’s disease: a mismatch negativity study." Journal of Neural Transmission 128, no. 5: 645-657.
There is substantial evidence that the environment has an important impact on the use of bicycles. Changes in the built environment, such as cycling infrastructure provision, usually aim at improving the efficiency, enjoyability and safety of cycling. They can also shape affective responses, for instance by triggering or preventing stress situations during cycling. The repeated occurrence of intensely stressful events may make actual cyclists more likely to abandon cycling and deter prospective cyclists from actually taking up this form of mobility. Therefore, using a novel approach, based on stress biomarker measurements obtained directly from cyclists, the objective of this study is to investigate the relationship between urban environment and cyclists' stress. It also investigates if different types of cycling infrastructures in the contexts of two different countries and in five different cities have different relationships with stress. Using a stress sensor, 70 young adults were invited to cycle along a standard route in Oxford, London (the United Kingdom), Amsterdam, Houten and Groningen (the Netherlands). These routes were around 6 km long and had a wide range of characteristics. Multilevel logistic regression analysis indicates that the probability of stressful events occurring is significantly lower on physically segregated cycle paths than on cycle paths on streets, with cycling on general use streets falling in-between these extremes. We also find higher probabilities of stress for primary roads compared to tertiary roads, at intersections than on straight roads, on cobbled and off-road surfaces compared to asphalt, and in noisier places. Models for the individual cities suggested that the relationship between cycling infrastructure and the likelihood of stressful events occurring may depend on the local context. Only for noise conditions, intersection types and cycling infrastructures were the effects consistent across the cities. These findings may be useful for urban infrastructure planning and management, indicating specific attributes that should be adjusted to make cycling less stressful.
Inaian Pignatti Teixeira; Antônio Nélson Rodrigues da Silva; Tim Schwanen; Gustavo Garcia Manzato; Linda Dörrzapf; Peter Zeile; Luc Dekoninck; Dick Botteldooren. Does cycling infrastructure reduce stress biomarkers in commuting cyclists? A comparison of five European cities. Journal of Transport Geography 2020, 88, 102830 .
AMA StyleInaian Pignatti Teixeira, Antônio Nélson Rodrigues da Silva, Tim Schwanen, Gustavo Garcia Manzato, Linda Dörrzapf, Peter Zeile, Luc Dekoninck, Dick Botteldooren. Does cycling infrastructure reduce stress biomarkers in commuting cyclists? A comparison of five European cities. Journal of Transport Geography. 2020; 88 ():102830.
Chicago/Turabian StyleInaian Pignatti Teixeira; Antônio Nélson Rodrigues da Silva; Tim Schwanen; Gustavo Garcia Manzato; Linda Dörrzapf; Peter Zeile; Luc Dekoninck; Dick Botteldooren. 2020. "Does cycling infrastructure reduce stress biomarkers in commuting cyclists? A comparison of five European cities." Journal of Transport Geography 88, no. : 102830.
Resumo O objetivo deste estudo foi avaliar a exposição dos ciclistas ao ruído em uma cidade média brasileira. Um sensor móvel foi utilizado para as medições de ruído em ruas com e sem infraestruturas cicloviárias segregadas. O método proposto contempla as seguintes etapas: i) caracterização da área de estudo; ii) coleta e validação de dados; iii) cálculo dos indicadores de exposição; e iv) comparação e representação de resultados em mapas. Dois tipos de análises foram realizadas, por agregação espacial e por agregação temporal. Para isto, as medições foram inicialmente organizadas em 1.200 nós distribuídos nos percursos considerados. Os resultados apontam que os ciclistas que percorrem alguns trechos na cidade de São Carlos podem estar expostos a uma proporção considerável de ambientes com altos níveis de ruído. Nos dois trechos selecionados para este estudo, o ciclista esteve exposto à níveis acima do valor adotado (> 75dBA) em 33,2% e 18,9% dos nós. Além disso, observou-se que a possibilidade de trabalhar concomitantemente dois indicadores relacionados amplia os critérios de classificação dos trechos quanto à exposição do ruído.
Thiago Da Cunha Ramos; Antônio Nélson Rodrigues Da Silva; Léa Cristina Lucas De Souza; Luc Dekoninck; Dick Botteldooren; Inaian Pignatti Teixeira. Exposição de ciclistas ao ruído em uma cidade média brasileira. Ciência & Saúde Coletiva 2020, 25, 2891 -2902.
AMA StyleThiago Da Cunha Ramos, Antônio Nélson Rodrigues Da Silva, Léa Cristina Lucas De Souza, Luc Dekoninck, Dick Botteldooren, Inaian Pignatti Teixeira. Exposição de ciclistas ao ruído em uma cidade média brasileira. Ciência & Saúde Coletiva. 2020; 25 (7):2891-2902.
Chicago/Turabian StyleThiago Da Cunha Ramos; Antônio Nélson Rodrigues Da Silva; Léa Cristina Lucas De Souza; Luc Dekoninck; Dick Botteldooren; Inaian Pignatti Teixeira. 2020. "Exposição de ciclistas ao ruído em uma cidade média brasileira." Ciência & Saúde Coletiva 25, no. 7: 2891-2902.
Acoustic comfort is becoming an increasingly important dimension for practitioners in the context of design of care facilities for older adults, namely nursing homes. Defining the quality of these spaces based on room acoustics criteria alone might be challenging if aspects related to their functioning (e.g., speech-based activities) are not taken into account. The acoustical capacity concept has been previously proposed for eating establishments as a way to provide a quality assessment based on both physical characteristics of the space and the perceived quality of verbal communication. In this study, a revised version of a prediction model for ambient noise levels based on occupancy and an estimation of acoustical capacity are proposed for nursing homes hosting people with dementia, and the corresponding parameters of slope, group size and absorption per person are optimized for the specific application, using a Nursing Home in Flanders (Belgium) participating to the AcustiCare project as case study. Results show that, compared to normal eating establishments, lower absorption per person values and higher group size values should be used in nursing homes to reduce errors in ambient noise levels prediction. Furthermore, using a retrofit intervention carried out in the living room of the Nursing Home, the enhanced acoustical capacity of the space was analysed. Results, in this case, show that, prior to the retrofit intervention, the acoustical capacity was already exceeded with average occupancy (i.e., saturated in normal functioning conditions), while the reduction in reverberation time achieved with the retrofit increased considerably the acoustical capacity of the space, shifting the quality of verbal communication in the living room from insufficient to satisfactory.
Paul Devos; Francesco Aletta; Pieter Thomas; Tara Vander Mynsbrugge; Mirko Petrovic; Dominique Van De Velde; Patricia De Vriendt; Dick Botteldooren. Application of a Prediction Model for Ambient Noise Levels and Acoustical Capacity for Living Rooms in Nursing Homes Hosting Older People with Dementia. Applied Sciences 2020, 10, 4205 .
AMA StylePaul Devos, Francesco Aletta, Pieter Thomas, Tara Vander Mynsbrugge, Mirko Petrovic, Dominique Van De Velde, Patricia De Vriendt, Dick Botteldooren. Application of a Prediction Model for Ambient Noise Levels and Acoustical Capacity for Living Rooms in Nursing Homes Hosting Older People with Dementia. Applied Sciences. 2020; 10 (12):4205.
Chicago/Turabian StylePaul Devos; Francesco Aletta; Pieter Thomas; Tara Vander Mynsbrugge; Mirko Petrovic; Dominique Van De Velde; Patricia De Vriendt; Dick Botteldooren. 2020. "Application of a Prediction Model for Ambient Noise Levels and Acoustical Capacity for Living Rooms in Nursing Homes Hosting Older People with Dementia." Applied Sciences 10, no. 12: 4205.
The design of urban public spaces is typically performed by architects and urban planners, which often only focus on the visual aesthetics of the urban space. Yet, a visually pleasing public open space designed for relaxing will be underused if it sounds unpleasant. Ideally, sonic design should be integrated with visual design, a need the soundscape approach answers. The current trend of co-creating the urban space together with all stakeholders, including local residents, opens up new opportunities to account for all senses in the urban design process. Unfortunately, architects and urban planners struggle to incorporate the soundscape approach in the urban design process and to use it in the context of co-creation. In this work, a hackathon is proposed to generate creative concepts, methods and tools to co-create the urban public space. A soundscape hackathon was organized in the spring of 2019. Participants were challenged to apply their own immersive approaches or virtual and/or augmented reality solutions on selected urban soundscapes. They presented their results to colleagues in the field and to a professional jury. This paper describes the process and results of the event and shows that a hackathon is a viable approach to accelerate the co-creation of the urban public space.
Jorg De Winne; Karlo Filipan; Bart Moens; Paul Devos; Marc Leman; Dick Botteldooren; Bert De Coensel. The Soundscape Hackathon as a Methodology to Accelerate Co-Creation of the Urban Public Space. Applied Sciences 2020, 10, 1932 .
AMA StyleJorg De Winne, Karlo Filipan, Bart Moens, Paul Devos, Marc Leman, Dick Botteldooren, Bert De Coensel. The Soundscape Hackathon as a Methodology to Accelerate Co-Creation of the Urban Public Space. Applied Sciences. 2020; 10 (6):1932.
Chicago/Turabian StyleJorg De Winne; Karlo Filipan; Bart Moens; Paul Devos; Marc Leman; Dick Botteldooren; Bert De Coensel. 2020. "The Soundscape Hackathon as a Methodology to Accelerate Co-Creation of the Urban Public Space." Applied Sciences 10, no. 6: 1932.
Sound and its resulting soundscape is a major appraisal component of the living environment. Where environmental sounds (e.g., outdoor traffic sounds) are often perceived as negative, a soundscape (e.g., containing natural sounds) can also have a positive effect on health and well-being. This supportive effect of a soundscape is getting increasing attention for use in practice. This paper addresses the design of a supportive sonic environment for persons with dementia in nursing homes. Starting from a review of key mechanisms related to sonic perception, cognitive deficits and related behavior, a framework is derived for the composition of a sonic environment for persons with dementia. The proposed framework is centered around using acoustic stimuli for influencing mood, stimulating the feeling of safety and triggering a response in a person. These stimuli are intended to be deployed as added sounds in a nursing home to improve the well-being and behavior of the residents.
Paul Devos; Francesco Aletta; Pieter Thomas; Mirko Petrovic; Tara Vander Mynsbrugge; Dominique Van De Velde; Patricia De Vriendt; Dick Botteldooren. Designing Supportive Soundscapes for Nursing Home Residents with Dementia. International Journal of Environmental Research and Public Health 2019, 16, 4904 .
AMA StylePaul Devos, Francesco Aletta, Pieter Thomas, Mirko Petrovic, Tara Vander Mynsbrugge, Dominique Van De Velde, Patricia De Vriendt, Dick Botteldooren. Designing Supportive Soundscapes for Nursing Home Residents with Dementia. International Journal of Environmental Research and Public Health. 2019; 16 (24):4904.
Chicago/Turabian StylePaul Devos; Francesco Aletta; Pieter Thomas; Mirko Petrovic; Tara Vander Mynsbrugge; Dominique Van De Velde; Patricia De Vriendt; Dick Botteldooren. 2019. "Designing Supportive Soundscapes for Nursing Home Residents with Dementia." International Journal of Environmental Research and Public Health 16, no. 24: 4904.
Objective. While transcranial focused ultrasound is a very promising neuromodulation technique for its non-invasiveness and high spatial resolution, its application to the human deep brain regions such as the subthalamic nucleus (STN) is relatively new. The objective of this study is to design a simple ultrasound transducer and study the transcranial wave propagation through a highly realistic human head model. The effects of skull morphology and skull and brain tissue properties on the focusing performance and energy deposition must therefore be known. Approach. A full-wave finite-difference time-domain simulation platform was used to design and simulate ultrasound radiation from a single-element focused transducer (SEFT) to the subthalamic nucleus. Simulations were performed using the state-of-the-art Multimodal Imaging-based and highly Detailed Anatomical (MIDA) head model. In addition, the impact of changes in sound speed, density, and tissue attenuation coefficients were assessed through a sensitivity analysis. Main results. A SEFT model was designed to deliver an intensity of around 100W/m2 to the STN region; 20% of the STN volume was sonicated with at least half of the maximum of the peak intensity and it was predicted that 61.5% of the volume of the beam (above half of the peak intensity) falls inside the STN region. The sensitivity analysis showed that the skull's sound speed is the most influential acoustic parameter, which must be known with less than 1.2% error to obtain an acceptable accuracy in intracranial fields and focusing (for less than 5% error). Significance. Ultrasound intensity delivery at the STN by a simple single element transducer is possible and could be a promising alternative to complex multi-element phased arrays, or more general, to invasive or less focused (non-acoustic) neuromodulation techniques. Accurate acoustic skull and brain parameters, including detailed skull geometry, are needed to ensure proper targeting in the deep brain region.
Mohammed Amine Samoudi; Timothy Van Renterghem; Dick Botteldooren. Computational modeling of a single-element transcranial focused ultrasound transducer for subthalamic nucleus stimulation. Journal of Neural Engineering 2018, 16, 026015 .
AMA StyleMohammed Amine Samoudi, Timothy Van Renterghem, Dick Botteldooren. Computational modeling of a single-element transcranial focused ultrasound transducer for subthalamic nucleus stimulation. Journal of Neural Engineering. 2018; 16 (2):026015.
Chicago/Turabian StyleMohammed Amine Samoudi; Timothy Van Renterghem; Dick Botteldooren. 2018. "Computational modeling of a single-element transcranial focused ultrasound transducer for subthalamic nucleus stimulation." Journal of Neural Engineering 16, no. 2: 026015.
The sonic environment of the urban public space is often experienced while walking through it. Nevertheless, city dwellers are usually not actively listening to the environment when traversing the city. Therefore, sound events that are salient, i.e. stand out of the sonic environment, are the ones that trigger attention and contribute highly to the perception of the soundscape. In a previously reported audiovisual perception experiment, the pleasantness of a recorded urban sound walk was continuously evaluated by a group of participants. To detect salient events in the soundscape, a biologically-inspired computational model for auditory sensory saliency based on spectrotemporal modulations is proposed. Using the data from a sound walk, the present study validates the hypothesis that salient events detected by the model contribute to changes in soundscape rating and are therefore important when evaluating the urban soundscape. Finally, when using the data from an additional experiment without a strong visual component, the importance of auditory sensory saliency as a predictor for change in pleasantness assessment is found to be even more pronounced.
Karlo Filipan; Bert De Coensel; Pierre Aumond; Arnaud Can; Catherine Lavandier; Dick Botteldooren. Auditory sensory saliency as a better predictor of change than sound amplitude in pleasantness assessment of reproduced urban soundscapes. Building and Environment 2018, 148, 730 -741.
AMA StyleKarlo Filipan, Bert De Coensel, Pierre Aumond, Arnaud Can, Catherine Lavandier, Dick Botteldooren. Auditory sensory saliency as a better predictor of change than sound amplitude in pleasantness assessment of reproduced urban soundscapes. Building and Environment. 2018; 148 ():730-741.
Chicago/Turabian StyleKarlo Filipan; Bert De Coensel; Pierre Aumond; Arnaud Can; Catherine Lavandier; Dick Botteldooren. 2018. "Auditory sensory saliency as a better predictor of change than sound amplitude in pleasantness assessment of reproduced urban soundscapes." Building and Environment 148, no. : 730-741.
Deliberately changing terrain undulation and ground characteristics (“acoustical landscaping”) is an potential noise abatement solution near roads. However, there is hardly any research regarding the validity of sound propagation models to predict its effectiveness. Long-term continuous sound pressure level measurements near a complex road traffic and sound propagation case were performed. Three types of modeling approaches were validated, covering the full spectrum of available techniques. A two-dimensional full-wave technique (the finite-difference time-domain method, FDTD), but also an advanced engineering model (the Harmonoise point-to-point model), provide accurate transmission loss predictions, both in 1/3 octave bands and for total A-weighted sound pressure levels. Two common and widely used semi-empirical engineering methods (ISO9613-2 and CNOSSOS) yield rather inaccurate results, notwithstanding the short propagation distance. The sensitivity to input data was assessed by modelling various scenarios with the FDTD method. Detailed ground effect modelling was shown to be of main importance.
Timothy Van Renterghem; Dick Botteldooren. Landscaping for road traffic noise abatement: Model validation. Environmental Modelling & Software 2018, 109, 17 -31.
AMA StyleTimothy Van Renterghem, Dick Botteldooren. Landscaping for road traffic noise abatement: Model validation. Environmental Modelling & Software. 2018; 109 ():17-31.
Chicago/Turabian StyleTimothy Van Renterghem; Dick Botteldooren. 2018. "Landscaping for road traffic noise abatement: Model validation." Environmental Modelling & Software 109, no. : 17-31.
Urban and transport planners need to assess the stressful conditions experienced by cyclists, considering that highly stressful situations can discourage people from cycling as a transport mode. Therefore, this study has two objectives: (1) to present a method for monitoring stress and other environmental factors along cycling routes using smart sensors; and (2) to analyze the influence of noise, vibration, presence of cycle paths, and the period of the day on stress experienced by cyclists. Data were collected in the city of São Carlos, Brazil, using stress and noise sensors, accelerometers, and Global Positioning System (GPS). Primarily, heat maps generated from the data made it possible to identify critical points of stress along the routes. In addition, the results of a logistic regression model were analyzed to identify the influence of the studied variables on stress. Although high levels of noise increased the odds of experiencing stress by 4%, very uncomfortable vibrations increased the odds by 14%, and the presence of cycle paths reduced the odds by 8%, an analysis of p-values and odds ratio confidence intervals shows, with a 95% confidence level, that only the period of the day influenced stress, as confirmed by the data. In this case, the odds of having stress increased by 24% in the afternoon rush hour compared to the morning rush hour.
Javier Yesid Mahecha Nuñez; Inaian Pignatti Teixeira; Antônio Nélson Rodrigues Da Silva; Peter Zeile; Luc Dekoninck; Dick Botteldooren. The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists. Sustainability 2018, 10, 2379 .
AMA StyleJavier Yesid Mahecha Nuñez, Inaian Pignatti Teixeira, Antônio Nélson Rodrigues Da Silva, Peter Zeile, Luc Dekoninck, Dick Botteldooren. The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists. Sustainability. 2018; 10 (7):2379.
Chicago/Turabian StyleJavier Yesid Mahecha Nuñez; Inaian Pignatti Teixeira; Antônio Nélson Rodrigues Da Silva; Peter Zeile; Luc Dekoninck; Dick Botteldooren. 2018. "The Influence of Noise, Vibration, Cycle Paths, and Period of Day on Stress Experienced by Cyclists." Sustainability 10, no. 7: 2379.
The specific noise immission from an (industrial) noise source is commonly assessed by short-term measurements. Good practice prescribes measuring under downwind conditions at modest wind speeds. Nevertheless, this still leads to large variation, even at short distances and needs quantification. More specifically, the variation in sound propagation due to the changing refractive state of the atmosphere and the relatively large variation in soil impedance one can find for (visually determined) “grassland” is studied. Highly detailed meteorological tower data were combined with measured grassland impedances. These data are fed to the full-wave one-directional Green's function parabolic equation sound propagation model. The variation, even under these good-practice measurement conditions, is found to be large, and strongly dependent on sound frequency, source height, receiver height, and propagation distance. When assessing the specific sound pressure level from a multitude of sources, this variation strongly decreases compared to a low-height single source. Besides absolute variations, fluctuations in the transmission loss between a close point and a more distant one are discussed in this paper. The variation ranges give an idea on this systematic uncertainty when performing short-term measurements, and their impact on convergence to yearly averaged equivalent sound pressure levels.
T. Van Renterghem; Dick Botteldooren. Variability due to short-distance favorable sound propagation and its consequences for immission assessment. The Journal of the Acoustical Society of America 2018, 143, 3406 -3417.
AMA StyleT. Van Renterghem, Dick Botteldooren. Variability due to short-distance favorable sound propagation and its consequences for immission assessment. The Journal of the Acoustical Society of America. 2018; 143 (6):3406-3417.
Chicago/Turabian StyleT. Van Renterghem; Dick Botteldooren. 2018. "Variability due to short-distance favorable sound propagation and its consequences for immission assessment." The Journal of the Acoustical Society of America 143, no. 6: 3406-3417.
In contemporary urban design, green public areas play a vital role. They have great societal value, but if exposed to undue environmental noise their restorative potential might be compromised. On the other hand, research has shown that the presence of greenery can moderate noise annoyance in areas with high sound levels, while personal factors are expected to play an important role too. A cycling path bordered by vegetation, but highly exposed to road traffic noise, was here considered as a case study. A sound perception survey was submitted to participants on site and they were subsequently sorted into groups according to their noise sensitivity, visual attention and attitude towards greenery. The aim of this study was testing whether these three personal factors could affect their noise perception and overall experience of the place. Results showed that people highly sensitive to noise and more sceptical towards greenery’s potential as an environmental moderator reported worse soundscape quality, while visually attentive people reported better quality. These three personal factors were found to be statistically independent. This study shows that several person-related factors impact the assessment of the sound environment in green areas. Although the majority of the respondents benefit from the presence of visual green, policy-makers and planners should be aware that for a significant subset of the population, it should be accompanied by a tranquil soundscape to be fully appreciated.
Francesco Aletta; Timothy Van Renterghem; Dick Botteldooren. Influence of Personal Factors on Sound Perception and Overall Experience in Urban Green Areas. A Case Study of a Cycling Path Highly Exposed to Road Traffic Noise. International Journal of Environmental Research and Public Health 2018, 15, 1118 .
AMA StyleFrancesco Aletta, Timothy Van Renterghem, Dick Botteldooren. Influence of Personal Factors on Sound Perception and Overall Experience in Urban Green Areas. A Case Study of a Cycling Path Highly Exposed to Road Traffic Noise. International Journal of Environmental Research and Public Health. 2018; 15 (6):1118.
Chicago/Turabian StyleFrancesco Aletta; Timothy Van Renterghem; Dick Botteldooren. 2018. "Influence of Personal Factors on Sound Perception and Overall Experience in Urban Green Areas. A Case Study of a Cycling Path Highly Exposed to Road Traffic Noise." International Journal of Environmental Research and Public Health 15, no. 6: 1118.
It has been established that there is an interaction between audition and vision in the appraisal of our living environment, and that this appraisal is influenced by personal factors. Here, we test the hypothesis that audiovisual aptitude influences appraisal of our sonic and visual environment. To measure audiovisual aptitude, an auditory deviant detection experiment was conducted in an ecologically valid and complex context. This experiment allows us to distinguish between accurate and less accurate listeners. Additionally, it allows to distinguish between participants that are easily visually distracted and those who are not. To do so, two previously conducted laboratory experiments were re-analyzed. The first experiment focuses on self-reported noise annoyance in a living room context, whereas the second experiment focuses on the perceived pleasantness of using outdoor public spaces. In the first experiment, the influence of visibility of vegetation on self-reported noise annoyance was modified by audiovisual aptitude. In the second one, it was found that the overall appraisal of walking across a bridge is influenced by audiovisual aptitude, in particular when a visually intrusive noise barrier is used to reduce highway traffic noise levels. We conclude that audiovisual aptitude may affect the appraisal of the living environment.
Kang Sun; Gemma M. Echevarria Sanchez; Bert De Coensel; Timothy Van Renterghem; Durk Talsma; Dick Botteldooren. Personal Audiovisual Aptitude Influences the Interaction Between Landscape and Soundscape Appraisal. Frontiers in Psychology 2018, 9, 780 .
AMA StyleKang Sun, Gemma M. Echevarria Sanchez, Bert De Coensel, Timothy Van Renterghem, Durk Talsma, Dick Botteldooren. Personal Audiovisual Aptitude Influences the Interaction Between Landscape and Soundscape Appraisal. Frontiers in Psychology. 2018; 9 ():780.
Chicago/Turabian StyleKang Sun; Gemma M. Echevarria Sanchez; Bert De Coensel; Timothy Van Renterghem; Durk Talsma; Dick Botteldooren. 2018. "Personal Audiovisual Aptitude Influences the Interaction Between Landscape and Soundscape Appraisal." Frontiers in Psychology 9, no. : 780.
Kang Sun; Bert De Coensel; Gemma Maria Echevarria Sanchez; Timothy Van Renterghem; Dick Botteldooren. Effect of interaction between attention focusing capability and visual factors on road traffic noise annoyance. Applied Acoustics 2018, 134, 16 -24.
AMA StyleKang Sun, Bert De Coensel, Gemma Maria Echevarria Sanchez, Timothy Van Renterghem, Dick Botteldooren. Effect of interaction between attention focusing capability and visual factors on road traffic noise annoyance. Applied Acoustics. 2018; 134 ():16-24.
Chicago/Turabian StyleKang Sun; Bert De Coensel; Gemma Maria Echevarria Sanchez; Timothy Van Renterghem; Dick Botteldooren. 2018. "Effect of interaction between attention focusing capability and visual factors on road traffic noise annoyance." Applied Acoustics 134, no. : 16-24.
Network-based sound monitoring systems are deployed in various cities over the world and mobile applications allowing participatory sensing are now common. Nevertheless, the sparseness of the collected measurements, either in space or in time, complicates the production of sound maps. This paper describes the results of a measurement campaign that has been conducted in order to test different spatial interpolation strategies for producing sound maps. Mobile measurements have been performed while walking multiple times in every street of the XIIIth district of Paris. By adaptively constructing a noise map on the basis of these measurements, the role of the density of observations and the performance of four different interpolation strategies is investigated. Ordinary and universal Kriging methods are assessed, as well as the effect of using an alternative definition of the distance between observation locations, which takes the topology of the road network into account. The results show that a high density of observation points is necessary to obtain an interpolated sound map close to the reference map.
Pierre Aumond; Arnaud Can; Vivien Mallet; Bert De Coensel; Carlos Ribeiro; Dick Botteldooren; Catherine Lavandier. Kriging-based spatial interpolation from measurements for sound level mapping in urban areas. The Journal of the Acoustical Society of America 2018, 143, 2847 -2857.
AMA StylePierre Aumond, Arnaud Can, Vivien Mallet, Bert De Coensel, Carlos Ribeiro, Dick Botteldooren, Catherine Lavandier. Kriging-based spatial interpolation from measurements for sound level mapping in urban areas. The Journal of the Acoustical Society of America. 2018; 143 (5):2847-2857.
Chicago/Turabian StylePierre Aumond; Arnaud Can; Vivien Mallet; Bert De Coensel; Carlos Ribeiro; Dick Botteldooren; Catherine Lavandier. 2018. "Kriging-based spatial interpolation from measurements for sound level mapping in urban areas." The Journal of the Acoustical Society of America 143, no. 5: 2847-2857.
Efstathios Margaritis; Jian Kang; Karlo Filipan; Dick Botteldooren. The influence of vegetation and surrounding traffic noise parameters on the sound environment of urban parks. Applied Geography 2018, 94, 199 -212.
AMA StyleEfstathios Margaritis, Jian Kang, Karlo Filipan, Dick Botteldooren. The influence of vegetation and surrounding traffic noise parameters on the sound environment of urban parks. Applied Geography. 2018; 94 ():199-212.
Chicago/Turabian StyleEfstathios Margaritis; Jian Kang; Karlo Filipan; Dick Botteldooren. 2018. "The influence of vegetation and surrounding traffic noise parameters on the sound environment of urban parks." Applied Geography 94, no. : 199-212.
The increasing importance attributed to soundscape quality in urban design generates a need for a system for automatic quality assessment that could be used for example in monitoring. In this work, the possibility for using machine listening techniques for this purpose is explored. The outlined approach detects the presence of particular sounds in a human-inspired way, and therefore allows to draw conclusions about how soundscapes are perceived. The system proposed in this paper consists of a partly recurrent artificial neural network modified to incorporate human attention mechanisms. The network is trained on sounds recorded in typical urban parks in the city of Antwerp, and thus becomes an auditory object creation and classification system particularly tuned to this context. The system is used to analyze a continuous sound level recording in different parks, resulting in a prediction of sounds that will most likely be noticed by a park visitor. Finally, it is shown that these indicators for noticed sounds allow to construct more powerful models for soundscape quality as reported in a survey with park visitors than indicators that are more regularly used in soundscape research.
Michiel Boes; Karlo Filipan; Bert De Coensel; Dick Botteldooren. Machine Listening for Park Soundscape Quality Assessment. Acta Acustica united with Acustica 2018, 104, 121 -130.
AMA StyleMichiel Boes, Karlo Filipan, Bert De Coensel, Dick Botteldooren. Machine Listening for Park Soundscape Quality Assessment. Acta Acustica united with Acustica. 2018; 104 (1):121-130.
Chicago/Turabian StyleMichiel Boes; Karlo Filipan; Bert De Coensel; Dick Botteldooren. 2018. "Machine Listening for Park Soundscape Quality Assessment." Acta Acustica united with Acustica 104, no. 1: 121-130.
In this chapter, examples of the application of urbanism approaches are described not only to reduce unwanted noise but also to improve the quality of the sonic environment. By considering different architectonic elements existent in the urban environment, it is possible to highly reduce traffic noise levels. The shape of the buildings, the street configurations, or the urban furniture are effective for urban sound-friendly architecture. Additionally, it has been proven that human perception is multisensorial; thus, the visual elements are also influential to the perception of urban sound environments. The way visual elements can support the sonic coherence of a space and its relation to the urban functionality is discussed. Finally, Virtual Reality Technology is proposed as a tool for the design and appraisal of future urban development where both visual and audio can be simultaneously assessed. The implementation within a smart city is also considered.
Gemma Maria Echevarria Sanchez; Sonia Alves; Dick Botteldooren. Urban Sound Planning. Advances in Civil and Industrial Engineering 2018, 1 -22.
AMA StyleGemma Maria Echevarria Sanchez, Sonia Alves, Dick Botteldooren. Urban Sound Planning. Advances in Civil and Industrial Engineering. 2018; ():1-22.
Chicago/Turabian StyleGemma Maria Echevarria Sanchez; Sonia Alves; Dick Botteldooren. 2018. "Urban Sound Planning." Advances in Civil and Industrial Engineering , no. : 1-22.