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Tool for Simultaneous Editing of Multiple Subtitle Files
Chmelo, Lukáš ; Vlnas, Michal (referee) ; Milet, Tomáš (advisor)
Cieľom tejto práce je vytvoriť multiplatformový nástroj určený na súčasnú úpravu súborov titulkov vo viacerých verziách videa. Aplikácia umožňuje súčasnú tvorbu a úpravu titulkov pre rôzne variácie jedného videa, ktoré obsahuje rôzne strihy a vložené scény, čím rieši významnú výzvu pri úprave titulkov. Medzi kľúčové funkcie aplikácie patrí kontrola pravopisu a funkcie úpravy časovania reči. Ďalším dôležitým zameraním tohto projektu je užívateľská prívetivosť a kompatibilita medzi platformami, čo zaisťuje jednoduché používanie naprieč bežnými operačnými systémami.
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Machine learning in audio effects
Sychra, Jakub ; Mošner, Ladislav (referee) ; Černocký, Jan (advisor)
Získávání hudebních efektů z mixovaných skladeb je složité téma, které vyžaduje znalosti jak v oblasti zpracování signálů, tak zkušenosti s audio inženýrstvím. Tato práce cílí na tvorbu systém, který by byl schopen identifikovat sekvence a parametry kytarových efektů z mixovaných skladeb. Trénovací data byla vytvořena za využití čistých kytarových zvuků z datasetu IDMT-SMT-Audio-Effects. Tyto data byla následně augmentována populárními kytarovými efekty (BitCrush, Chorus, Clipping, Compressor, Delay, Distortion, High-pass filter, Ladder filter, Low-pass filter, Limiter, Phaser a Reverb), které byly implementovány pomocí knihovny Pedalboard tvořící mezivrstvu mezi jazykem Python a standartními VST efekty. Samotný rozpoznávací systém je založený na architektuře VGGish, k níž jsou přidány klasifikační (přítomnost efektu) a regresní (parametry efektů) hlavy. Výkon modelu je hodnocen na základě přesnosti klasifikace a regrese, a také v neformálních poslechových testech.
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Adaptation of Zephyr RTOS and Sound Open Firmware on a HiFi4 DSP of the NXP i.MX RT685 MCU
Staniček, Vít ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
Tato práce se zabývá analýzou mikrokontroléru i.MX RT685 vyráběného firmou NXP Semiconductors, v něm realizovaného Tensilica HiFi 4 DSP jádra a popisuje úsilí adaptace RTOS Zephyr společně s vrstvou Sound Open Firmware na tuto platformu. Aplikace demonstrující zpracování digitálních zvukových signálů nad těmito technologiemi je v této práci implementována rovněž. Práce je motivována záměrem jak efektivně realizovat techniky pro digitální zpracování zvukových signálů na této platformě, tak sjednotit jejich použití.
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Transmission Diagnostic Tool
Škvarka, Jakub ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
This master's thesis focuses on the development of a tool for diagnosing transmission systems in programming language Python. The aim of this work is to create a flexible software solution that enables data acquisition and analysis primarily from gearboxes using the LAN-XI analyser, which is adaptable to the individual needs of the user and allows for process automation. The developed tool fully replaces conventional software, providing opportunities for automation and customization of the data acquisition process. The thesis also presents a specific example of the tool's application on real data from a technical experiment, demonstrating its functionality and practical use.
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Bus wiring systems for complex building management
Mokrý, Lukáš ; Macháček, Jan (referee) ; Bátora, Branislav (advisor)
The aim of my thesis is to examine current opportunities of bus wiring systems for complex building management, mainly its power and economic evaluation. It can be simply called intelligent electrical installation. I will examine two systems from INELS and ABB company. These systems contain functional components, mainly modules and controllers. By means of other materials, I’ll create a panel. Components will be placed there and electrically connected. After this, systems will be put into operation and programmed by means of their software. The next step is measuring of quatities during the various conditions of systems and consumption, which is one of the main aims of the thesis. Two apparatuses will be used for measuring. This thesis itself will contain theoretical analysis of systems, their description, using the way of operation and main advantages and disadvantages. Single components and complete process of measuring and working in laboratory will be described. An overall evaluation and comparison of the systems from various points of view, including the price, will be put together from results.
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MW Converter for SW Receiver
Lejsková, Alena ; Lukeš, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This thesis concerns about the network synthesis of receivers with the demand for conversion of the input signal and a following implementation of assigned converter. At first it introduces the readers with the basic division of radio waves and with parts, which are important for a high-quality receiver, then it deals with general properties of input networks of receivers, division of parts and kinds of connection, that are used in the communications. The concept of connection is intended to nonspecialists too, that is why it describes step by step each of parts of the network, including the calculation or possible solution and the choice of convenient parts. The aim is also to present the frequency conversion as an important part of signal receiving that we want to use in communication systems.
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Influence of physical load to electrical activity of muscles
Kadeřábek, Jan ; Sekora, Jiří (referee) ; Kolářová, Jana (advisor)
This bachelor’s thesis describes influence of physical load on electrical activity of muscles. In each of bachelor’s thesis chapters are analyzed questions of measurement EMG signals and their elaboration, include statistic attestation of influence physical load on electrical activity of muscles. EMG signals were received from group of 10 students and in program acqKnowledge, were taken off parameters for statistic elaboration. In created program were due to time and frequency analysis calculated parameters of EMG records, which can also describe influence of physical load. Accomplishments of this project are the tables with measured data, their graphs, statistics attestation of influence physical load on electrical activity of muscles and program, which can do time and frequency analysis of measured records. On significance level 10% was verified hypothesis, that physical load influence electrical activity of muscles.
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Spread spectrum modulator
Lejsková, Alena ; Kováč, Michal (referee) ; Maršálek, Roman (advisor)
This thesis deals with a method of spectrum-spreading of the data signals transmitted in the radio channel. There exist three different ways of spreading application, they uses pseudorandom sequences and also orthogonal sequences. In these systems we can find various kinds of modulations, one of them (Quadrature Phase Shift Keying) is shown at the end of the thesis. Spectrum spreading orthogonal multiplex OFDM is based on this method. The thesis wants to present the principle of the spectrum spreading method and the description of systems, transmitters and receivers that are using this method.
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Audio D/A converter with external control using microcontroller
Špaček, Jan ; Stifter,, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
This diploma thesis deals with the design of a laboratory measurement tool with ADC converter for audio and low frequency signals. In the introduction part a theoretical background of the ADC and DAC conversions are outlined. In the next chapters the technical solution of the laboratory converter is presented, including DAC with integrated circuit AD1852 and completed with digital audio receiver CS8416. This circuit secures compatibility with external audio devices with digital interfaces, like SPDIF or AES3. The digital receiver and audio DAC are added with serial communication interface for setup of the most audio and input parameters. This setup is operated by external microcontroller ATmega32 and original firmware. The thesis contains block diagram and schematic layout of the laboratory converter, including complete technical documentation for the construction and design.
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Tone and Chord Recognition as an Android Application
Kucharovič, Oliver ; Černocký, Jan (referee) ; Szőke, Igor (advisor)
The aim of this work is to recognize tones and chords on any musical instrument using the microphone on Android mobile devices. The app scans or records the sounds which are analyzed. It writes to a visual representation which is similar to the musical notation. The work describes the problems of recognition and the solution of the problem using fast Fourier transformation and analysis of the spectrum of volumes. Work describes the theory of music and the training of individual tones. The application was subjected to user tests and recognition accuracy tests. The conclusion includes tests results and statistics from the Google Play publication.
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