|
|
Experimental Audio Effect Based on Dynamic Signal Filtering
Leitgeb, David ; Miklánek, Štěpán (referee) ; Schimmel, Jiří (advisor)
The aim of this thesis is the implementation of an experimental audio effect based on dynamic signal filtering. Two implementations of the audio effect were made, the first one using the Matlab environment and its Audio Toolbox extension, and the second one in the C++ programming language using the JUCE framework. The main digital signal processing types present in the proposed audio effect include: frequency filtering, signal delay and modulation of parameters using low-frequency oscillators. The initial prototype of the audio effect mainly serves to verify correct functionality of the proposed algorithms. The result of the second implementation is a fully functional plug-in module usable, for example, for music production. Both versions are available in the VST format, which can be used with numerous digital audio workstations. The thesis is divided into three main parts: theoretical introduction, implementation of the audio effect, and demonstration of its functionality. Theoretical introduction describes several areas of digital signal processing which are crucial for the correct implementation of the individual components of the audio effect. Implementation of the proposed audio effect is described in the following part of this thesis. Description of the implementation in Matlab is mostly done by showcasing parts of the source code. The C++ version of the audio effect is for the most part described verbally. The last part of this thesis focuses on the demonstration of both versions of the proposed effect. This part features several graphical examples demonstrating various use cases of the proposed effect. Audio files corresponding to these examples are included in the appendix.
|
|
|
Measurement design in modern packet, transport, and access technologies
Galovič, Dominik ; Michálek, Jakub (referee) ; Škorpil, Vladislav (advisor)
The diploma thesis focuses on the capabilities of the VeEx VePAL Tx300s analyzer and network analysis. In the theoretical part, the thesis focuses on the most common tests used for analyzing network parameters of networks and its devices. Their principles, advantages, and disadvantages are described. The choice of the tests is deliberately selected to match the capabilities of the analyzer itself. Its basic functions are described in this diploma thesis. After understanding the functioning of individual tests and the analyzer itself, two laboratory tasks were created to familiarize potential students, for whom these tasks were designed, with the basic operation of the analyzer and to acquaint them with basic as well as advanced testing of network parameters, whether of active network elements or the laboratory network itself. An addition is the use of the VeEx VePAL tx300 analyzer, which was purchased previously, and the change of an already made laboratory task.
|
|
|
Queue Management in Network Active Elements
Pancák, Matej ; Kubánková, Anna (referee) ; Koton, Jaroslav (advisor)
This thesis is mainly focused on efficiency of data handling on active network elements and monitoring of transmission speeds in real and testing networks. The purpose of this work is to create and implement algorithm which is able to reorganize list of Mangle rules. The purpose of this optimization is to raise data processing efficiency and decrease communication delay as main QoS parameter. The result of the work is series of measurements in order to confirm the effect of optimizations on the transmission and other parameters.
|
|
|
Aspects of airspace evaluation
Závodník, Ondřej ; Kujal, Tomáš (referee) ; Brhelová, Dana (advisor)
Diplomová práce se zabývá jednak popisem stavu letecké dopravy a to zejména co se týče její bezpečnosti, plynulosti, propustnosti a kapacity. Výše uvedené je poté zhodnoceno v části věnující se aspektům nebezpečnosti vzdušného prostoru v jednotlivých fázích letu.
|
|
|
Geolocation in Internet using network topologies
Dvořák, Filip ; Verner, Lukáš (referee) ; Komosný, Dan (advisor)
The thesis discusses about modern geolocation methods and it describes the basic principles of their work. The work is divided into 2 parts - the theoretical one and the practical one. The first part of the thesis is focused on the description of these methods and on the explanation of its basic concepts which are used for determining of the physical position of the station according to its IP address. The second more extensive part of the work focuses on the description of the realization of algorithm in the Octant method in the programming language of Java and its use in the experimental net of PlanetLab. One important thing is to create a set of reference points and targets, which are necessary for the testing of the whole algorithm of the Octant Method. The results of estimated accuracy of target location obtained by the Octant method and their comparison with the results obtained by active methods of CBG, SOI and with the passive method of GeoIP are listed at the end of this work.
|
|
|
Geolocation of Internet hosts
Ingr, Michal ; Müller, Jakub (referee) ; Balej, Jiří (advisor)
This master thesis deals with methods of stations’ geolocation on the Internet, it means the estimation geographic location of unknown station, which is conected to this network. The introductory part describes the methods for determining position, which don‘t need any measeruments of the network. The next section is devoted to points, where delay is invoked, to the causes of latency in the Internet, to their types and some usual values. The following part features ways to measure delays and route, including several tools for this purpose. The penulminate section describes some chosen geolocation techniques based on RTT measurement. The final chapter is devoted to practical demonstration geolocation using the CBG method, when the delay measurement was carried out in an experimental PlanetLab network.
|
|
|
Using reverberators to modify space acoustics
Pavlikovský, Vladislav ; Orlovský, Kristián (referee) ; Kurc, David (advisor)
This diploma thesis deals with adjusting the reverberation time of enclosed spaces. It is divided into two thematic areas. The first thematic area deals with active systems that adjust the reverberation time, with a stronger focus on usage of reverberators to simulate secondary spaces. The second thematic area is the implementation of reverberators and their fundamental building blocks in Matlab.
|
|
|
Open-Source Software Tools for Network Diagnostics
Loffay, Pavol ; Ráb, Jaroslav (referee) ; Matoušek, Petr (advisor)
The aim of this work is to make a research of existing open source tools, which are concerned with the diagnosis of the network transmission in the form of measuring of throughput and other basic parameters. The work is devoted to the construction of methodics for testing and comparing devices between themselves. The result of the work is recommendation to an ordinary customer the right application for measuring of given network transmission parameter.
|
|
|
Methods for measurement of data network performance and quality parameters
Sukup, Luboš ; Zeman, Václav (referee) ; Novotný, Vít (advisor)
Master thesis involves the development of quality measurement issues and performance parameters in data networks. It describes the main technologies as they affect the quality and performance parameters and the effect of these parameters for voice, video and data services. Next are listed some methods for measuring parameters of the data network.In the practical part is selected one method of measuring network parameters and properties of this method are demonstrated by illustrative examples.
|
|
|
Network service testing with WAN network emulator and load simulators
Kocáb, Marek ; Krajsa, Ondřej (referee) ; Novotný, Vít (advisor)
The main task of this thesis was to explore the requirements of different telecommunications services on the network parameter, that are packet delay, packet loss, throughput, jitter. Make to test network service with WAN network emulator and load simulators. Next focus was to explore TCP congestion avoidance algorithms and focus on their throughput. The purpose of the first chapter is to introduce Quality of Service (QoS) for VoIP, video conversation, streaming audio, streaming video and data. The second chapter are to explore various types of delay, that are created from the sender through network device, transmission media to the recipient. The third chapter is to introduce NetDisturb application. It is application, that can emulate real properties of the data network and incoming traffic affect example packet delay, packet loss, bandwidth limit and so on. The key objectives of the fourth and fifth part is TCP protocol and TCP congestion avoidance algorithms. Hier are to introduce TCP protocol basic properties, congestion avoidance mechanisms and analysis of TCP congestion avoidance algorithms. In the practical part are created two laboratory exercises. First laboratory exercise is designed on the implementation QoS for various types of traffic. Second laboratory exercise is focused on the analysis TCP congestion avoidance algorithms and their throughput.
|
guest ::
