Optimizing classroom acoustics using computer model studies

Auteurs-es

  • Rebecca Reich Natl Research Council, Ottawa, Canada
  • John Bradley Natl Research Council, Ottawa, Canada

Mots-clés :

Acoustic noise, Acoustic wave absorption, Architectural acoustics, Computer simulation, Optimization, Sound insulating materials, Classroom acoustics, Software package ODEON

Résumé

L’intelligibilité de la parole dans une chambre est déterminée par les caractérsitiques acoustiques et aussi par les rapports parole-bruit. Ces deux types d’effets sont combinés dans des mesures comme des rapports son-utile/son-nuisible, qui sont reliés directement à l’intelligibilité de la parole. Cet article présente les investigations des conditions acoustiques optimums pour des classes en utilisant le modèle généré par la programme acoustique ODEON. En déterminant les conditions reliées aux rapports son-utile/son-nuisible maximums, il est possible de trouver des conditions optimums pour la parole. Les résultats montrent qu’un temps de réverbération mi-fréquence optimum pour une classe est environ 0.5 s, mais l’intélligibilité de la parole n’est pas très susceptible aux petites déviations de cet optimum. L’intélligibilité de la parole est influencée plus fortement par les niveaux de bruit ambiant. On trouve que la location optimum de matériel absorbant est sur la partie supérieure des murs.

Fichiers supplémentaires

Publié-e

1998-12-01

Comment citer

1.
Reich R, Bradley J. Optimizing classroom acoustics using computer model studies. Canadian Acoustics [Internet]. 1 déc. 1998 [cité 21 févr. 2025];26(4):15-21. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1179

Numéro

Vol. 26 No. 4 (1998)

Rubrique

Articles techniques

Licence

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