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Creating 3D models supporting Modern computer graphics course
Silber, Marek ; Frenštátský, Petr (referee) ; Rajmic, Pavel (advisor)
This thesis is divided into two parts, where the first part is focused on an overview and work with 3D software at Czech universities, it includes a comparison of the different programs and description of history of Blender programme which was the one chosen as support for teaching the Modern computer graphics course. The second part of the thesis is more focused on practical matters and describes the basic workings of the programme from the first start up, orientation in the different sections and the settings of the work space for the work itself. The thesis details basic transformation commands of change of location, rotation and change of scale of objects and editing commands like copying, deleting, hiding and duplication of individual objects including their theoretical descriptions. Work with lightings continues after the transformation commands including practical examples of different types of lighting. Work with materials and textures is described in the last two chapters. The goal of this thesis is to describe how to work with the Blender programme and basic work with objects and assigning individual materials and textures for objects and the lighting in a scene for people unfamiliar with the programme.
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Colour Noise Generator
Křivánek, Tomáš ; Rajmic, Pavel (referee) ; Frenštátský, Petr (advisor)
The main purpose of this bachelor thesis is explanation of „colored noise“, such as pink, brown, blue and more. There are completely subscribed coloured noises in this work, includig their importance and use for measurement in electroacustic and sound technology. Practical part of this thesis is focused on generating colored noises in Matlab, where we mainly work with model frequency spekter, frequency response and FIR filters.
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Application for Programming MIDI Controllers
Dolejší, Miloš ; Frenštátský, Petr (referee) ; Schimmel, Jiří (advisor)
This bachelor thesis deals with designing of an application which allows programming of controls on ControlFREAK and Bitstream 3x controllers via MIDI System Exclusive messages. The theoretical part contains an analysis of the MIDI communication protocol, including description of channel and system MIDI data. The practical part describes individual parts of the application and then presents and explains parts of the source code. The application has been created in the Visual Studio 2013 SDK using Windows Multimedia System library, which contains functions and structures necessary for accomplishing the application’s tasks. The communication between the PC and the controller is realized via MIDI-USB converter.
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Analysis of Acoustic Space Objective Quality Criteria of Orlí Street Theatre
Bělunek, Adam ; Frenštátský, Petr (referee) ; Schimmel, Jiří (advisor)
The core of the theoretical part of this work lies in a summary of basic laws and principles of a room acoustics, behavior of sound waves, reverberation time, sound absorption, impulse response and methods of measurement. Furthermore, the work describe and define some of the objective quality criteria of concert halls we know. We can find basic time criteria (e.g. reverberation time, early decay time, bass ratio, high frequency ratio…) and energy criteria (e.g. objective clarity, strenght of arriving energy…) etc.. The main focus is on a script, that is programmed in Matlab. It handles calculation of some objective quality criteria of concert halls. The function of the program is described. There are some trial calculation, that are evaluated. Functionality is demonstrated on some impulse responses, that were measured in hall of a theatre Divadlo na Orlí. The positions of microphones were different and also the configuration of acoustics elements in this hall was changing. Results were compared and commented. Another part of this work are scripts for calculations of impulse response and frequency response.
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Software Analyzer for Audio Effects
Frenštátský, Petr ; Sysel, Petr (referee) ; Schimmel, Jiří (advisor)
The utilisation of personal computers for a conditioning of audio devices has shown a significant increase, since the digital signal processing (DSP) was introduced. The expansion of the DSP has allowed implementing analyses to obtain frequency and linear characteristics, distortion parameters (THD, THD+N, WHD, SINAD), a rate of crosstalk or a signal-to-noise ratio. In this work a software analyser is developed, which is able to obtain qualitative parameters of hardware audio devices that are connected with a sound card. For an efficient communication between the sound card and the personal computer the ASIO driver is used. The application is capable to measure audio effects that are implemented in VST plug-ins. The software is developed in C++ language and the implemented analyses are based on the AES17 recommendation.
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Creating 3D models and tutorials for computer exercises in Modern computer graphics
Gros, Jan ; Frenštátský, Petr (referee) ; Rajmic, Pavel (advisor)
The content of this thesis is to introduce with the issues taught in the course MGMP and create tutorials and 3D models in Blender for computer exercises of course MGMP. The first part is devoted to some similar courses taught at universities in the Czech Republic. Another parts are dealing with the method of Catmull-Clark subdivision surfaces, texture mapping issues, issues of curves and animation of objects with using curves. The last part is about shading 3D models and about various methods which have been developed and are in use to this day. The output of work are video tutorials and models for MGMP course, dealing with different parts of the thesis.
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Modeling Of Non-Linear Reverb Effect Usingblack-Box Approach
Frenštátský, Petr
In this paper we propose a method for modeling hardware reverb effects that manifests nonlinear character. The method is based on an identification of device under a test using input-output measurements utilizing a synchronized swept-sine signal. The model is implemented on a personal computer and on digital signal processor SHARC SC589. Both implementations are compared on the basis of time complexity.
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3D Graphics Extension of Graphical User Interfaces of Audio Plugins
Dufka, Filip ; Mašek, Jan (referee) ; Frenštátský, Petr (advisor)
This thesis deals with possibilities of an extension of audio modules graphical user interface with 3D models using OpenGL framework. As an audio module implementing digital signal processing algorithms Virtual Studio Technology (VST) is used. The objective of this thesis is a creation of an algorithm for a change of sound source location. The algorithm is implemented in VST3 with an additional 3D visualization.
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Analysis of Acoustic Space Objective Quality Criteria of Orlí Street Theatre
Bělunek, Adam ; Frenštátský, Petr (referee) ; Schimmel, Jiří (advisor)
The core of the theoretical part of this work lies in a summary of basic laws and principles of a room acoustics, behavior of sound waves, reverberation time, sound absorption, impulse response and methods of measurement. Furthermore, the work describe and define some of the objective quality criteria of concert halls we know. We can find basic time criteria (e.g. reverberation time, early decay time, bass ratio, high frequency ratio…) and energy criteria (e.g. objective clarity, strenght of arriving energy…) etc.. The main focus is on a script, that is programmed in Matlab. It handles calculation of some objective quality criteria of concert halls. The function of the program is described. There are some trial calculation, that are evaluated. Functionality is demonstrated on some impulse responses, that were measured in hall of a theatre Divadlo na Orlí. The positions of microphones were different and also the configuration of acoustics elements in this hall was changing. Results were compared and commented. Another part of this work are scripts for calculations of impulse response and frequency response.
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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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