National Repository of Grey Literature 163 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Multichannel audio DAC for laboratory measurements
Kristek, Tomáš ; Kufa, Jan (referee) ; Kratochvíl, Tomáš (advisor)
The content of this bachelor thesis is the design and construction of a multi-channel audio D/A converter, which will be used for laboratory use. It includes a digital signal input using SPDIF communication, the D/A converter itself, control of the D/A converter chip using the SPI bus, power circuits and symmetrical output.
Multichannel audio DAC for laboratory measurements
Kristek, Tomáš ; Kufa, Jan (referee) ; Kratochvíl, Tomáš (advisor)
The content of this bachelor thesis is the design and construction of a multi-channel audio D/A converter, which will be used for laboratory use. It includes a digital signal input using SPDIF communication, the D/A converter itself, control of the D/A converter chip using the SPI bus, power circuits and symmetrical output.
Application of Business Intelligence in a Corporate Environment
Suszterová, Sandra ; Kratochvíl, Tomáš (referee) ; Luhan, Jan (advisor)
The diploma thesis deals with the design and implementation of a reporting solution using a Business Intelligence tool within a selected corporate environment. The ideal Business Intelligence solution will be selected based on the company's defined requirements and an analysis of available options. The final outcome of the thesis will be an automated reporting system delivered to individual users and also integrated within the company's own business application, presented in a visually attractive and informative way through appropriate Business Intelligence tool.
Audio DSP processor for laboratory measurements
Navrátil, Jiří ; Polák, Ladislav (referee) ; Kratochvíl, Tomáš (advisor)
This bachelor's thesis's content is designing and constructing a device for laboratory teaching in the Audio Electronics class. The audio DSP processor ADAU1701 from Analog Devices with integrated A/D and D/A converters is used. The SigmaStudio program is used to set up the processor, and communication is mediated by a programmer board connected to a computer via a USB connector.
Tube guitar amplifier
Mostecký, Jan ; Balík, Miroslav (referee) ; Kratochvíl, Tomáš (advisor)
This bachelor thesis studies guitar tube amplifiers. The thesis introduces basic concepts behind electrical valve circuits. After that there is a scheme of a modified vacuum tube amplifier designed by the author. The functionality of the design has been verified via computer simulation. Designed amplifier was built afterwards and its functionality was verified via measurements.
Class AB stereo audio amplifier with output power 2 x 120 W / 4 ohms
Pavlovič, Matúš ; Šotner, Roman (referee) ; Kratochvíl, Tomáš (advisor)
In this bachelor thesis we will deal with the design of a stereo amplifier with a power stage in working class AB with a nominal power of 2x120 W / 4. We decided to design the audio amplifier itself into blocks, while we can expand the individual blocks by others if necessary. In the first chapter we propose frequency corrections for an audio amplifier using operational amplifiers. In the second chapter we will propose an indication of the excitation of the audio amplifier, using the integrated circuit LM3915 in connection with LED diodes. In the third chapter we will design the power stage of the audio amplifier operating in class AB with a power of 120 W. In the fourth chapter we will design the protection of the connected speaker to the amplifier. In the sixth chapter we will design the power circuits for the audio amplifier. The next chapters will describe the implementation and measurement of the proposed audio amplifier.
Model of a shared transmission channel for future wireless communication systems
Sedláček, David ; Polák, Ladislav (referee) ; Kratochvíl, Tomáš (advisor)
The main objective of the thesis was to study modern and upcoming wireless systems and their coexistence in a shared transmission channel. Based on the knowledge gained, the design of a simplified transmission channel was implemented. The model was created in Matlab using several available extensions. The correctness of the model was verified at the end by laboratory measurements.
Advanced algorithms for compression of video sequences with ultra high resolution
Soukeník, Ondřej ; Kratochvíl, Tomáš (referee) ; Polák, Ladislav (advisor)
This bachelor thesis provides an overview of advanced video codecs and explores their applicability for compression ov videosequences in ultra high resolution (UHD). The thesis is divided into two parts, theoretical and experimental. The theoretical part of the thesis gives an overview of advanced video codecs for video compression. Furthermore, objective metrics used for evaluation of the quality of a compressed video are briefly described. This part of the thesis also contains a detailed description of the created tool, employing a reference implementation of the selected video codecs, for easy compression of video sequences in UHD. This tool is used in the experimental part to compress different video sequences. The compression efficiency of each video codec is evaluated in terms of different objective metrics. Furthermore, the Bjntegaard Delta analysis is employed to obtain infromation about the compression efficiency of the used video codecs.
Mixing console for audio signals
Ryšavý, Ondřej ; Kufa, Jan (referee) ; Kratochvíl, Tomáš (advisor)
Bachelor’s thesis on the topic „Mixing console for audio signals“ deals with the design and production of a mixing console for mixing several independent audio channels. In the first step is designed a block diagram and then a circuit diagram. The overall configuration of the mixing console is: Four mono inputs, designed as a combined XLR/JACK 6,3 mm input, where you can connect a microphone or other mono signal (not both at the same time), two stereo inputs RCA(CINCH). Each channel allows five-band frequency correction, panorama, signal level control and signal level detection. The output is realized per line connectors (for connection to the amplifier), headphone output and headphone amplifier. After design, the mixing console is producted, revived and then measured in an audio laboratory.
Analog studio compressor with adustable band-pass filter
Ledvina, Matej ; Kratochvíl, Tomáš (referee) ; Šotner, Roman (advisor)
This thesis deals with design of a dynamic range compressor complemented by an adjustable band pass filter. This device features wider usability than a standard dynamic compressor while simultaniously being able to replace specialized ones. Presented solution utilizes voltage controlled filters of KHN topology to limit the bandwidth of either the processed signal or the controling signal and integrated voltage controled amplifiers for adjustment of dynamics. The design requirements are verified by computer simulation.

National Repository of Grey Literature : 163 records found   1 - 10nextend  jump to record:
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26 Kratochvil, Tomáš
26 Kratochvíl, Tomáš
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