Comparison of Isotropy Estimators for the Analysis of Reverberation Rooms - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2020

Comparison of Isotropy Estimators for the Analysis of Reverberation Rooms

Résumé

Reverberation-room measurements of absorption coefficients are subject to high uncertainties and irreproducibility across different laboratories. One reason is the lack of a sufficiently isotropic sound field both in steady-state and during the sound field decay. Recently, two different methods - based on the decomposition of the sound field into plane waves - have been proposed for the estimation and analysis of the sound field isotropy in reverberation rooms [Berzborn, 2018; Gover, 2004; Nolan, 2018]. This study compares the two methods based on numerically calculated plane wave sound fields as well as experimental results obtained from array measurements in a reverberation room in different configurations. The room configurations comprise setups with and without hanging panel diffusers and with and without an absorbing sample on the floor. Both methods are compared regarding their suitability in the analysis of reverberation rooms and the required angular resolution for the plane wave decomposition.
Fichier principal
Vignette du fichier
000658.pdf (3.55 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03235285 , version 1 (26-05-2021)

Identifiants

Citer

Marco Berzborn, Melanie Nolan, Efren Fernandez-Grande, Michael Vorländer. Comparison of Isotropy Estimators for the Analysis of Reverberation Rooms. Forum Acusticum, Dec 2020, Lyon, France. pp.139-146, ⟨10.48465/fa.2020.0658⟩. ⟨hal-03235285⟩
91 Consultations
42 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More