Low-frequency room demerit analysis and equalization using properly-modeled source terms in finite-difference time-domain simulations

Auteurs-es

  • Ryan J. Matheson Dept. of Physics and Astronomy, University of Waterloo, 200 University Ave. West., ON N2L 3GI, Canada

Mots-clés :

Finite difference time domain method, Resonance, End-wall, Finite difference time domain simulations, Finite-difference time-domain simulation, Frequency modes, Low frequency, Low-frequency resonance, Source terms

Résumé

A study was conducted to perform low-frequency room demerit analysis and equalization using properly modeled source terms in finite-difference time-domain (FDTD) simulations. It was observed that the end-wall adjustment helped in equalizing things, as exciting the lowest modes corresponding to the W dimension was avoided. This had no effect on the lowest frequency modes that were attributed to the L dimension, which caused the largest low frequency resonances. The L-dimension modes were considered by the rear cancellation method and it was observed that all the modes below 130Hz were removed when the low frequency resonances created problems.

Fichiers supplémentaires

Publié-e

2009-09-01

Comment citer

1.
Matheson RJ. Low-frequency room demerit analysis and equalization using properly-modeled source terms in finite-difference time-domain simulations. Canadian Acoustics [Internet]. 1 sept. 2009 [cité 18 mai 2026];37(3):76-7. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2141

Numéro

Vol. 37 No. 3 (2009)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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