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Global and continuous pleasantness estimation of the soundscape perceived during walking trips through urban environments

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Abstract
This paper investigates how the overall pleasantness of the sound environment of an urban walking trip can be estimated through acoustical measurements along the path. For this purpose, two laboratory experiments were carried out, during which controlled and natural 3-min audio and audiovisual sequences were presented. Participants were asked to continuously assess the pleasantness of the sound environment along the sequence, and globally at its end. The results reveal that the global sound pleasantness is principally explained by the average of the instantaneous sound pleasantness values. Accounting for recency or trend effects improved the estimates of the global sound pleasantness over controlled sound sequences, but their contribution is not significant for the second group of stimuli, which are based on natural audio sequences and include visual information. In addition, models for global and continuous pleasantness, as a function of the instantaneous sound pressure level L-eq,L-1s, are proposed. The instantaneous sound pleasantness is found to be mainly impacted by the average sound level over the past 6 s. A logarithmic fading mechanism, extracted from psychological literature, is also proposed for this modelling, and slightly improves the estimations. Finally, the globally perceived sound pleasantness can be accurately estimated from the sound pressure level of the sound sequences, explaining about 60% of the variance in the global sound pleasantness ratings.
Keywords
ROAD TRAFFIC NOISE, LOUDNESS, QUALITY, INDICATORS, ANNOYANCE, EXPOSURE, POLLUTANTS, PREFERENCE, CHOICE, SPACES, sound pleasantness, perceptual test, urban sound environment, recency, effect, urban walking trip

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MLA
Aumond, Pierre et al. “Global and Continuous Pleasantness Estimation of the Soundscape Perceived During Walking Trips Through Urban Environments.” APPLIED SCIENCES-BASEL 7.2 (2017): n. pag. Print.
APA
Aumond, P., Can, A., De Coensel, B., Ribeiro, C., Botteldooren, D., & Lavandier, C. (2017). Global and continuous pleasantness estimation of the soundscape perceived during walking trips through urban environments. APPLIED SCIENCES-BASEL, 7(2).
Chicago author-date
Aumond, Pierre, Arnaud Can, Bert De Coensel, Carlos Ribeiro, Dick Botteldooren, and Catherine Lavandier. 2017. “Global and Continuous Pleasantness Estimation of the Soundscape Perceived During Walking Trips Through Urban Environments.” Applied Sciences-basel 7 (2).
Chicago author-date (all authors)
Aumond, Pierre, Arnaud Can, Bert De Coensel, Carlos Ribeiro, Dick Botteldooren, and Catherine Lavandier. 2017. “Global and Continuous Pleasantness Estimation of the Soundscape Perceived During Walking Trips Through Urban Environments.” Applied Sciences-basel 7 (2).
Vancouver
1.
Aumond P, Can A, De Coensel B, Ribeiro C, Botteldooren D, Lavandier C. Global and continuous pleasantness estimation of the soundscape perceived during walking trips through urban environments. APPLIED SCIENCES-BASEL. Basel: Mdpi Ag; 2017;7(2).
IEEE
[1]
P. Aumond, A. Can, B. De Coensel, C. Ribeiro, D. Botteldooren, and C. Lavandier, “Global and continuous pleasantness estimation of the soundscape perceived during walking trips through urban environments,” APPLIED SCIENCES-BASEL, vol. 7, no. 2, 2017.
@article{8518163,
  abstract     = {This paper investigates how the overall pleasantness of the sound environment of an urban walking trip can be estimated through acoustical measurements along the path. For this purpose, two laboratory experiments were carried out, during which controlled and natural 3-min audio and audiovisual sequences were presented. Participants were asked to continuously assess the pleasantness of the sound environment along the sequence, and globally at its end. The results reveal that the global sound pleasantness is principally explained by the average of the instantaneous sound pleasantness values. Accounting for recency or trend effects improved the estimates of the global sound pleasantness over controlled sound sequences, but their contribution is not significant for the second group of stimuli, which are based on natural audio sequences and include visual information. In addition, models for global and continuous pleasantness, as a function of the instantaneous sound pressure level L-eq,L-1s, are proposed. The instantaneous sound pleasantness is found to be mainly impacted by the average sound level over the past 6 s. A logarithmic fading mechanism, extracted from psychological literature, is also proposed for this modelling, and slightly improves the estimations. Finally, the globally perceived sound pleasantness can be accurately estimated from the sound pressure level of the sound sequences, explaining about 60% of the variance in the global sound pleasantness ratings.},
  articleno    = {144},
  author       = {Aumond, Pierre and Can, Arnaud and De Coensel, Bert and Ribeiro, Carlos and Botteldooren, Dick and Lavandier, Catherine},
  issn         = {2076-3417},
  journal      = {APPLIED SCIENCES-BASEL},
  keywords     = {ROAD TRAFFIC NOISE,LOUDNESS,QUALITY,INDICATORS,ANNOYANCE,EXPOSURE,POLLUTANTS,PREFERENCE,CHOICE,SPACES,sound pleasantness,perceptual test,urban sound environment,recency,effect,urban walking trip},
  language     = {eng},
  number       = {2},
  pages        = {16},
  publisher    = {Mdpi Ag},
  title        = {Global and continuous pleasantness estimation of the soundscape perceived during walking trips through urban environments},
  url          = {http://dx.doi.org/10.3390/app7020144},
  volume       = {7},
  year         = {2017},
}

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