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- W2017384722 abstract "The modified Schroeder diffuser was presented in an earlier study [A. Jarvinen et al., J. Acoust. Soc. Am. 103, 3065(A) (1998)]. Results from the simulations with various numerical techniques were also reported. The developed structure is simpler than the traditional Schroeder diffusers and the total volume of the diffuser is utilized. The acoustical properties of the structure are studied further and optimized for different applications. Three-dimensional numerical simulations using boundary and finite-element methods and finite-difference time domain method are used and results are verified with scattering and absorption measurements. In addition to the previous study, simulations include structural coupling. This opens up new possibilities for adjusting the structure for different purposes such as broadband absorber. The low-frequency absorption effect [H. Kuttruff, Appl. Acoust. 42, 215–231 (1994)] can be taken into account by including the acoustical properties of the materials into calculations. Furthermore, this type of construction is applicable as a modular acoustic panel. The advantages of the modified diffuser construction are shown in comparison to traditional designs with similar acoustic characteristics." @default.
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- W2017384722 date "1999-02-01" @default.
- W2017384722 modified "2023-10-18" @default.
- W2017384722 title "Absorption and scattering characteristics of a modified Schroeder diffuser" @default.
- W2017384722 doi "https://doi.org/10.1121/1.424530" @default.
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