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FrancoAngeli Journals

Scientific papers

Vol. 48 No. 1 (2024)

Integrated design with change of use of a university lecture hall for optimization of acoustic comfort according to CAM

DOI
https://doi.org/10.3280/ria1-2024oa17365
Submitted
febbraio 27, 2024
Published
2024-07-22

Abstract

The present work concerns the integrated acoustic and lighting design of a university hall, previously used as a gymnasium, which will be used as a lecture hall on the Forlì University Campus.

The design process involves using predictive analytical formulas and numerical simulations, focusing on the acoustic parameters Reverberation Time T20, Clarity Index C50 and Speech Transmission Index STI. The room geometry and design constraints did not allow the acoustic quality requirements to be achieved with only passive acoustic treatments. In the room, an amplification system was necessary to meet the requirements of UNI 11532:2020, made mandatory by CAM.

References (including DOI)

  1. [ 1] D.M. 11/10/17, Criteri ambientali minimi per l’affi damento di servizi di progettazione e lavori per la nuova costruzione, ristrutturazione e manutenzione di edifi ci pubblici, 2017.
  2. UNI11532-2 Acustica in edilizia - Caratteristiche acustiche interne di ambienti confinati- Metodi di progettazione e tecniche di valutazione - Parte 2: Settore scolastico.
  3. Sato H., Bradley J., Evaluation of acoustical conditions for speech communication in working elementary school classrooms, J. Acoust. Soc. Am., 123(4) (2008), 2064-2077, DOI: 10.1121/1.2839283.
  4. Hodgson M., Nosal E., Effect of noise and occupancy on optimal reverberation times for speech intelligibility in classrooms, J. Acoust. Soc. Am., 111(2) (2002), 931-939, DOI: 10.1121/1.2839283.
  5. De Salvio, D., D’Orazio, D. (2022). Effectiveness of acoustic treatments and PA redesign by means of student activity and speech levels. Applied Acoustics, 194, 108783, DOI: 10.1016/j.apacoust.2022.108783.
  6. Massaro, D.W., Simpson, J.A. (2014). Speech perception by ear and eye: A paradigm for psychological inquiry. Psychology Press, DOI: 10.4324/9781315808253.
  7. Massaro, D.W., Palmer Jr, S.E. (1998). Perceiving talking faces: From speech perception to a behavioural principle. Mit Press.
  8. Lalonde, K., Werner, L.A. (2019). Infants and adults use visual cues to improve detection and discrimination of speech in noise. Journal of Speech, Language, and Hearing Research, 62(10), 3860-3875, DOI: 10.1044/2019_JSLHR-H-19-0106.
  9. Hodgson M., Experimental investigation of the acoustical characteristics of university classrooms, J. Acoust. Soc. Am., 106(4) (1999), 1810-1819, DOI: 10.1121/1.427931.
  10. UNI11532-1 Acustica in edilizia - Caratteristiche acustiche interne di ambienti confinati – Metodi di progettazione e tecniche di valutazione – Parte 1: Requisiti generali.
  11. EN IEC 60268-16: Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index.
  12. ISO 3382-1 Acoustic: Measurement of room acoustic parameters Part 1 Performance spaces.
  13. ISO 3382-2 Acoustic: Measurement of room acoustic parameters - Part 2 Reverberation time in ordinary rooms.
  14. Christensen CL., ODEON Room Acoustics Software-version 12. Lyngby, Denmark: Industrial, Auditorium and Combined Editions, 2013.
  15. ] Fratoni, G., D’Orazio, D., Barbaresi, L., Garai, M., & Cappellini, L. (2023, February). Mixing materials in false ceilings to increase sound diffusion in education spaces. In INTER-NOISE and NOISE-CON Congress and Conference Proceedings (Vol. 265, No. 2, pp. 5002-5006). Institute of Noise Control Engineering, ISBN 978-190691342-7.
  16. Cox T.J., D’Antonio P. (2009). Acoustic Absorbers and Diffusers, DOI: 10.1016/j.jsv.2006.01.055.
  17. Sistemi fonoassorbenti, pannelli Soundless, AKIFIX Group.
  18. Poltrone Antea, Audia Italia.6
  19. Massaro, D.W., Warner, D.S. (1977). Dividing attention between auditory and visual perception. Perception & Psychophysics, 21(6), 569-574, DOI: 10.3758/BF03198739.
  20. Lotto, A., Holt, L. (2011). Psychology of auditory perception. Wiley Interdisciplinary Reviews: Cognitive Science, 2(5), 479-
  21. , DOI: 10.1002/wcs.123.
  22. EN 12354-6:2003 Building Acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 6: Sound absorption in enclosed spaces.
  23. UNI11532-1 Acustica in edilizia - Caratteristiche acustiche interne di ambienti confinati - Metodi di progettazione e tecniche di valutazione - Parte 1.

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