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Abstrakty
The article presents theoretical values of reverberation times calculated on the basis of the diffusion equation for three room models: flat, cubic, and long. The article shows that not only the average absorp- tion coefficient, but also location of the absorbent material, as well as the place where the time is counted have an impact on the reverberation time, calculated on the basis of the diffusion equation. Despite that, the diffusion model is based on statistical assumptions. The primary goal of the article was to show that the model has geometrical features.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
171--180
Opis fizyczny
Bibliogr. 15 poz., tab.
Twórcy
autor
- Chair of Acoustics, Institute of Telecommunication, Teleinformatics and Acoustics, Wrocław University of Technology Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland, jaroslaw.kraszewski@pwr.wroc.pl
Bibliografia
- 1. Billon A., Foy C., Picaut J., Valeau V., Sakout A. (2008a), Introducing atmospheric attenuation within a diffusion model for room-acoustic predictions, Journal of Acoustical Society of America, 4040-4043.
- 2. Billon A., Foy C., Picaut J., Valeau V., Sakout A. (2008b), Modeling the sound transmition between rooms coupled through partition walls by using a diffusion model, Journal of Acoustical Society of America, 123, 6, 4261-4271.
- 3. Bilion A., Valeau V., Sakout A., Picaut J. (2006), On the use of a diffusion model for acoustically coupled rooms, Journal of Acoustical Society of America, 120, 4, 2043-2054.
- 4. Dobrucki A., Kraszewski J. (2011), Application Modified numerical algorithm for diffusion equation applied in room acoustics, 58th Open Seminar on Acoustics joined with 2nd Polish-German Structured Conference on Acoustics, 181-202.
- 5. Jing Y., Xiang N. (2007), A modified diffusion equation for room acoustic predication, Journal of Acoustical Society of America, 121, 6, 3284-3287.
- 6. Kraszewski J. (2011), Application of diffusion model for calculation of reverberation time, 6th European Congress on Acoustics: Forum Acusticum, 1511-1516.
- 7. Kraszewski J. (2010a), Boundary term modification in room acoustic field modeling using diffusion equation method, based on finite difference method, 57th Open Seminar on Acoustics OSA, 99-102.
- 8. Kraszewski J. (2010b), Dealing of the acoustic field in rooms using diffusion equation method based on finite difference method- numerical problems, EAA Euroregio 1st European Congress of Sound and Vibration, paper index: 055.
- 9. Picaut J., Simon L., Hardy J. (1999a), Sound field modeling in streets with diffusion equation, Journal of Acoustical Society of America, 106, 5, 2638-2645.
- 10. Picaut J., Simon L., Polack J. (1997), A mathematical model of diffuse sound field based on a diffusion equation, Acustica. Acta Acustica, 83, 614-621.
- 11. Picaut J., Simon L., Polack J. (1999b), Sound field in long rooms with diffusely reflecting boundaries, Applied Acoustics, 56, 217-240.
- 12. Valeau V., Hodgson M., Picaut J. (2007), A diffusion-based analogy for the prediction of sounds fields in fitted rooms, Acta Acustica united with Acustica, 93, 94-105
- 13. Valeau V., Picaut J., Hodgson M. (2006), On the use of a diffusion equation for room-acoustic predictions, Journal of Acoustical Society of America, 119, 3, 1504-1513.
- 14. Weyna S. (2010), Acoustic intensity imaging methods for in-situ wave propagation, Archives of Acoustics, 35, 2, 265-273.
- 15. Xiang N., Jing Y., Bockman A.C. (2009), Investigation of acoustically coupled enclosures using a diffusion-equation model, Journal of Acoustical So ciety of America, 126, 3, 1187-1198.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS8-0022-0005