Bachelor's Thesis

Room Acoustics Simulation Application

Final Thesis 5.63 MB

Author of thesis: Ing. Martin Krbila

Acad. year: 2018/2019

Supervisor: Ing. Ladislav Mošner

Reviewer: Ing. Igor Szőke, Ph.D.

Abstract:

This thesis deals with simulation of room acoustics. The first part of this thesis contains theoretical description of existing aproaches to simulation of acoustics and compares their strenghts and weaknesses. For the purpose of impulse response calculation, several geometrical methods were implemented, such as ray tracing, image method and a combination of those two methods. Application with graphical and text user interface was created, to allow simulation of rooms with arbitrary geometry. The application also allows user to obtain impulse response in a form of a sound file, to visualize the results and the process of sound simulation and to perform auralization. The results of the simulation were compared with measured impulse responses of real rooms. The comparison showed, that the hybrid method is the most accurate of methods implemented in this thesis, and that the best results are achieved by simulation of empty medium-sized or large rooms.

Keywords:

Room acoustics, Impulse response, Simulation, Ray tracing, Image method, Auralization, Qt, OpenGL

Date of defence

14.06.2019

Result of the defence

Defended (thesis was successfully defended)

znamkaAznamka

Grading

A

Process of defence

Student nejprve prezentoval výsledky, kterých dosáhl v rámci své práce. Komise se poté seznámila s hodnocením vedoucího a posudkem oponenta práce. Student následně odpověděl na otázky oponenta a na další otázky přítomných. Komise se na základě posudku oponenta, hodnocení vedoucího, přednesené prezentace a odpovědí studenta na položené otázky rozhodla práci hodnotit stupněm A.

Otázky u obhajoby:

  • V čem se váš nástroj liší od již existujicích řešení? Nebylo by lepší stavět na již existujících knihovnách?

Language of thesis

Czech

Faculty

Department

Study programme

Information Technology (IT-BC-3)

Field of study

Information Technology (BIT)

Composition of Committee

prof. Dr. Ing. Jan Černocký (předseda)
prof. Ing. Jiří Jaroš, Ph.D. (místopředseda)
doc. RNDr. Dana Hliněná, Ph.D. (člen)
Ing. Filip Orság, Ph.D. (člen)
RNDr. Marek Rychlý, Ph.D. (člen)

Supervisor’s report
Ing. Ladislav Mošner

Grade proposed by supervisor: A

File inserted by supervisor Size
Hodnocení vedoucího [.pdf] 86,43 kB

Reviewer’s report
Ing. Igor Szőke, Ph.D.

Grade proposed by reviewer: A

File inserted by the reviewer Size
Posudek oponenta [.pdf] 87,86 kB

Responsibility: Mgr. et Mgr. Hana Odstrčilová