Room Acoustic Parameters of an Auditorium using Ray Tracing Method

Antar, Abrar MD Mubashshir; Maruf, Md. Mesbahul

IUT Repository Home
→
Mechanical and Production Engineering (MPE)
→
Thesis
→
Undergraduate
→
2021
→
View Item

dc.contributor.author	Antar, Abrar MD Mubashshir
dc.contributor.author	Maruf, Md. Mesbahul
dc.date.accessioned	2022-04-21T04:32:11Z
dc.date.available	2022-04-21T04:32:11Z
dc.date.issued	2021-03-30
dc.identifier.citation	[1] J. H. Rindel and J. H. Rindel, “Introduction to room acoustics,” Sound Insul. Build., pp. 69–100, 2018, doi: 10.1201/9781351228206-5. [2] M. Hodgson and B. Yousefzadeh, “Energy- And wave-based beam-Tracing prediction of room-Acoustical parameters using different boundary conditions,” 41st Int. Congr. Expo. Noise Control Eng. 2012, INTER-NOISE 2012, vol. 1, no. 3, pp. 732–739, 2012, doi: 10.1121/1.4739461. [3] a T. Submitted et al., “Acoustical Modeling of the Transient Response of Rooms Using a Beam-Tracing Model,” no. October, 2010. [4] M. Hodgson, “Evidence Of Diffuse Surface Reflections In Rooms,” J. Acoust. Soc. Am., vol. 89, no. 2, pp. 765–771, 1991, doi: 10.1121/1.1894636. [5] S. Kazama, “Novel sound absorbing materials,” J. Acoust. Soc. Am., vol. 96, no. 3, pp. 1947–1947, 1994, doi: 10.1121/1.410175. [6] H. Kuttruff, Room Acoustics. 2009. [7] A. Wareing and M. Hodgson, “Beam-tracing model for predicting sound fields in rooms with multilayer bounding surfaces,” J. Acoust. Soc. Am., vol. 118, no. 4, pp. 2321–2331, 2005, doi: 10.1121/1.2011152. [8] E. Accolti and F. di Sciascio, “Room acoustics: Idealized field and real field considerations,” Proc. Meet. Acoust., vol. 31, no. 1, 2017, doi: 10.1121/2.0000795. [9] H. Kuttruff, Room Acoustics. 2016. [10] C. Multiphysics, T. Application, and C. A. License, “Small Concert Hall Analyzer.”	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/1378
dc.description	Supervised by Mr. Nagib Mehfuz, Lecturer, Department of Mechanical and Production Engineering (MPE) Islamic University of Technology (IUT), OIC Board Bazar, Gazipur, Dhaka Bangladesh.	en_US
dc.description.abstract	Sound quality is important for concert halls, seminar room even in room of house too. Ray acoustic is used in simulating the high frequency limit when the wavelengths is smaller than the geometrical features. The ray acoustic model can play a vital role in designing an auditorium or a concert hall. The shape of the room and the building materials can impact on the sound quality. The diffusion and absorption coefficient of sounds are the main parameters of the simulation, different materials contain different value of this. The model should contain geometrical setup, different parameters of room acoustics and sound sources. The room acoustic parameters also known as sound absorption coefficient which is vary according to the materials properties. For simulation the reflection and noise of sound should consider as low or zero where for experiment it is impossible to reduce sound noise and reflection in zero. For the ideal case in auditorium, an omnidirectional sound source is used, where two models are simulated through COMSOL Multiphysics. The results contain reverberation time, sound pressure level and temporal impulse response. The main objective is to improve sound pressure level of an auditorium, also improving the audience`s listening experience and improving the reverberation time.	en_US
dc.language.iso	en	en_US
dc.publisher	Department of Mechanical and Production Engineering (MPE),Islamic University of Technology(IUT), Board Bazar, Gazipur, Bangladesh	en_US
dc.title	Room Acoustic Parameters of an Auditorium using Ray Tracing Method	en_US
dc.type	Thesis	en_US