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Modelling of closed space acousticsby the beam method
Ryšavý, Marek ; Orlovský, Kristián (referee) ; Trzos, Michal (advisor)
The bachelor thesis describes the modeling of room acoustics using the ray tracing method. The first chapter deals with a general description of the basic properties of acoustic environment (wave acoustics, statistical acoustics and geometric acoustics). Then are described methods of calculating geometrical acoustics (image-source method, ray-tracing method and beam-tracing method). In the second chapter of this work is described in detail ray tracing methods and algorithm for calculate room acoustic using this method.
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Set of Web-Based Demonstrations for Signal Processing
Kaňok, Tomáš ; Jančík, Zdeněk (referee) ; Černocký, Jan (advisor)
The aim of this bachelor's thesis is to give a basic overview about convolutions and complex exponential functions used in signal processing. Additionally, it contains the list of existing public educationally-oriented solutions available on the Internet. Set of web-based demonstrations for signal processing is proposed, implemented and evaluated upon analyzed solutions.
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Room Acoustics Simulation Application
Krbila, Martin ; Szőke, Igor (referee) ; Mošner, Ladislav (advisor)
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.
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Comparison of Algorithms for Creation of Artificial Room Reverberations
Beňo, Tomáš ; Balík, Miroslav (referee) ; Frenštátský, Petr (advisor)
The aim of the Bachelor thesis is to get acquainted with and find out possibilities of control of the reverberation properties of established algorithms for creation of artificial room reverberation. The algorithms proposed by Jon Dattorro, William Gardner and Jean-Marc Jot are implemented in the Matlab environment. Their characteristics and comparison are determined. Subsequent implementation of Jot's algorithm into the VST plug-in module in Matlab using the Audio System Toolbox extension enables to study the properties and behavior of the algorithm that handles real-time sound. The resulting plug-in can then be tested in DAW as a host application.
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Removal of a Known Signal from a Recording
Hošek, Pavel ; Žmolíková, Kateřina (referee) ; Černocký, Jan (advisor)
The goal of this bachelor thesis is to design and implement method for removing known signal from recorded sound. The introductory part of the thesis summarizes the theory of sound properties, basics of signal processing, and system identification. Subsequently, the data are presented and the way of testing is stated. Afterwards, the development of a method for removing a known signal from a recording is described. Finally, experiments are performed, which include a comparison of selected methods. The best methods achieved relatively good results and they were mostly able to remove the known signal sufficiently.
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Room Acoustics Simulation Application
Krbila, Martin ; Szőke, Igor (referee) ; Mošner, Ladislav (advisor)
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.
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|
|
Removal of a Known Signal from a Recording
Hošek, Pavel ; Žmolíková, Kateřina (referee) ; Černocký, Jan (advisor)
The goal of this bachelor thesis is to design and implement method for removing known signal from recorded sound. The introductory part of the thesis summarizes the theory of sound properties, basics of signal processing, and system identification. Subsequently, the data are presented and the way of testing is stated. Afterwards, the development of a method for removing a known signal from a recording is described. Finally, experiments are performed, which include a comparison of selected methods. The best methods achieved relatively good results and they were mostly able to remove the known signal sufficiently.
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Comparison of Algorithms for Creation of Artificial Room Reverberations
Beňo, Tomáš ; Balík, Miroslav (referee) ; Frenštátský, Petr (advisor)
The aim of the Bachelor thesis is to get acquainted with and find out possibilities of control of the reverberation properties of established algorithms for creation of artificial room reverberation. The algorithms proposed by Jon Dattorro, William Gardner and Jean-Marc Jot are implemented in the Matlab environment. Their characteristics and comparison are determined. Subsequent implementation of Jot's algorithm into the VST plug-in module in Matlab using the Audio System Toolbox extension enables to study the properties and behavior of the algorithm that handles real-time sound. The resulting plug-in can then be tested in DAW as a host application.
|
|
|
Modelling of closed space acousticsby the beam method
Ryšavý, Marek ; Orlovský, Kristián (referee) ; Trzos, Michal (advisor)
The bachelor thesis describes the modeling of room acoustics using the ray tracing method. The first chapter deals with a general description of the basic properties of acoustic environment (wave acoustics, statistical acoustics and geometric acoustics). Then are described methods of calculating geometrical acoustics (image-source method, ray-tracing method and beam-tracing method). In the second chapter of this work is described in detail ray tracing methods and algorithm for calculate room acoustic using this method.
|
|
|
Set of Web-Based Demonstrations for Signal Processing
Kaňok, Tomáš ; Jančík, Zdeněk (referee) ; Černocký, Jan (advisor)
The aim of this bachelor's thesis is to give a basic overview about convolutions and complex exponential functions used in signal processing. Additionally, it contains the list of existing public educationally-oriented solutions available on the Internet. Set of web-based demonstrations for signal processing is proposed, implemented and evaluated upon analyzed solutions.
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