National Repository of Grey Literature 85 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Automation of Audio Device Measurement on APx500 Platform
Panáček, Richard ; Sysel, Petr (referee) ; Schimmel, Jiří (advisor)
This bachelor thesis is focused on the options of measurement automatization on the platform APx500. This automatization should be achieved not only with the use of the measuring program APx500, but also with the use of third-party programs. In these programs, measuring projects should be created. Among many compatible programs, there are LabVIEW, VEE, and a programing environment using Visual Basic language. The thesis is divided into many parts. The first part is focused on the introduction of the APx500 program and its functions. The second part is aimed at the connecting program APx500 with third-party programs using APx API. The practical part of this thesis is about the creation of a measuring project for frequency response in program LabView. Afterwards, this thesis focuses on creating a measuring project inside Excel document, with the usage of Visual Basic language for Applications. This project is intended to measure acoustic response, impedance and Thiele-Small parameters of a loudspeaker.
Software sound level meter
Kotalík, Milan ; Říha, Kamil (referee) ; Sysel, Petr (advisor)
V této závěrečné práci se zaobírám problematikou měření hluků. Popisuji lidské vnímání zvuku a vysvětluji základní parametry a veličiny zvuku podle normy ČSN EN 61672-1. Dále se zaobírám problematikou měření zvukových veličin v reálném čase. Vytvářím ucelený soubor funkcí pro měření hladin zvuku v prostředí MATLAB, které se pokouším implementovat v jazyce C++ pomocí jeho JUCE framework.
Web applications supporting education of 2D computer graphics
Drápela, Zbyněk ; Sysel, Petr (referee) ; Rajmic, Pavel (advisor)
The bachelor thesis deals with two-dimensional computer graphics. Specifically, Bézier curves, increasing their degree without changing their shape and performing subdivision. Furthermore, the Catmull--Clark subdivision algorithm and synthesis of procedural textures. The work aimed to describe the theoretical basis of these areas and to create four web applets using JavaScript and HTML, which will be used as an aid in teaching computer graphics.
Software for audio adjustment in multiple loudspeaker system
Černý, Viktor ; Schimmel, Jiří (referee) ; Sysel, Petr (advisor)
The first part of this Master’s Thesis deals with the theory of digital signal processing and describes the JUCE library. In this part some basic operations are explained with digital audio signals, such as polarity inversion, delay and linear interpolation of signal samples. The creation of new audio applications using the JUCE library in the C++ programming language is explained too. The next parts of this thesis describe the implemented audio application that allows the user to provide the described basic operations with digital audio signals in real time. For multiple channel audio signals the channels can be processed independently.
Modeling of Linear Distortion of Audio Devices
Vrbík, Matouš ; Sysel, Petr (referee) ; Schimmel, Jiří (advisor)
Methods used for correction and modeling of frequency response of sound devices are discussed in this paper. Besides classic methods of digital filter design, more advanced and complex numerial methods are reviewed, Prony and Steiglitz-McBride in particular. This paper focuses on structure utilizing parallel sections of second-order IIR filters. Methods for calculating coefficients of this structure are presented and later implemented. For selected method, utilizing dual frequency warping, an interative algorithm for automatic calculation of parameters necessary to filter design is implemented - so called Particle Swarm Optimization. Six ways of evaluation filter design precision are presented and the results are compared. Functions realizing filter design are implemented in C++, MATLAB and Python. A VST module simulating the filter in real time is also provided.
Adaptive Noise Cancellation Headphone
Panenka, Vojtěch ; Rajmic, Pavel (referee) ; Sysel, Petr (advisor)
The thesis deals with the analysis of technology used during the design of headphones with integrated active ambient noise cancellation and examines the possibilities of using adaptive filters to simplify development and achieve more effective attenuation.
Plug-in for Eclipse environment
Zaytsev, Vsevolod ; Burget, Radim (referee) ; Sysel, Petr (advisor)
This bachelor’s thesis has a goal to design a new DLTK-based (Dynamic Languages Toolkit) plug-in for the Eclipse development environment. Theoretical part of the thesis engages on the architecture of the Eclipse and describes the possibility of its extension through its own plug-ins, particularly for support of the Octave script language. Practical part of the thesis describes the creation of new plug-in for the Eclipse development environment, it’s integration and activation.
Identification of Ink Cartridges of Industrial Printer
Galád, Dominik ; Sysel, Petr (referee) ; Číka, Petr (advisor)
This thesis deals with the identification of ink cartridges by the industrial printer TSjet. There are described the basic methods of identification of ink cartridges that are commonly used today. There is also described 1-Wire® bus and USART interface. In the second part the thesis deals with suitable security algorithms for data security stored on the identification chip. The practical part describes the design of the system for identification of the ink cartridge. The conclusion of the thesis summarizes the results of design testing in practice and the safety evaluation of the whole system.
Firmware for power line communicaiton system
Majer, Dominik ; Sysel, Petr (referee) ; Sláčik, Ján (advisor)
In this diploma thesis it was introduced the issue of power line communication and network architecture design with goal to create own concept of smart house system. Consequently, the necessary communication protocols are designed and described based on the concept. Further is described the implementation of the designs and testing of the realized system under laboratory conditions using the real communication devices. Summary of the achieved results is supported by demonstration of real functionality.
Hardware for Aurisation of Room Impulse Responses
Martin, Martin ; Sysel, Petr (referee) ; Schimmel, Jiří (advisor)
This work deals with acoustics of rooms for sound post-production activities and their simulations, in order to reduce the need for acoustic room treatment and specialized monitoring equipment to a hardware unit and headphones - specifcally by creating hardware product for auralization of rooms impulse resp

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