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Design of Net-Based Virtual Collaborative Musical Instrument
Liudkevich, Denis ; Kiska, Tomáš (referee) ; Kavan, Jan (advisor)
The aim of this work was to create an online platform for multi-user sound creation with original sound synthesis tools. The educational context of the application was also taken into account by hiding the controls of the sound parameters behind the subconsciously known physical phenomena and the game form of the application. A substantial part of the logic and all graphics of the instruments is written in the JavaScript programming language and its library p5.js. It is located on the client side and communicates with the Node.js-based server via a web socket. The audio part is on another server in the SuperCollider environment, it is transmitted via IceCast and communicates with the main OSC message server. The application contains 3 instruments for generating sounds and one effects module. Each instrument is designed for multiple users and requires their cooperation. Acceptable transmission speeds and minimum computational demands have been achieved by optimizing the instrument's internal algorithms, the way in which the graphic content is displayed and the appropriate routing of the individual sound modules. The sound is specific for each instrument. The instruments in the application are tuned and designed so that the user can both achieve interesting sound results himself and play his role as a whole with others. Methods such as granular synthesis, chaotic oscillators, string instrument modeling, filter combinations, and so on are used to generate sound. Great emphasis in the development of the application was placed on the separation of roles, simultaneous control of one instrument by several players and communication of users through playing the instruments and text expression - chat. An important part is also a block for displaying descriptive information.
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Simulation of Sound Field of Sound System with Multiple Speakers in Closed Space
Brůna, Michal ; Husník, Libor (referee) ; Schimmel, Jiří (advisor)
In this thesis basic principles of sound system design are presented. A software simulation in Matlab is written for prediction of sound field with sources of real directivity in both freefield and in a closed room using velocity potential. Reflections are simulated using mirror sources of first and second order. Frequency dependent sound absorption coefficients are implemented in the simulation. There is a GUI designed to operate on most common horizontal configurations. Those are then evaluated and advantages and dissadvantages are demonstrated using the simulation software.
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Publicistic portrait of Roman Zajíček - the world-class luthier from Kolín
Fryml, Filip ; Lokšík, Martin (advisor) ; Halada, Andrej (referee)
The thesis is focused on journalistic portrait as a complete genre in the current documentary field. The theoretical part is focused on the technical elements which this type of documentary should cover. It includes preparations for the shooting, how to act at the shooting and what to be aware of. I also mentioned the importance of communication with the person so that the final portrait would be as natural as possible. At last I focused on the basic rules of editing which need to be followed. In the practical part is explained how I managed to apply the theoretical knowledge during shooting and editing of the journalistic portrait Guitars' chef. Apart from the specialized literature I also drew on my personal experience during the shooting, which I gained throughout my work in the audiovisual field.
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Acoustic emissions of buildings
Smažinka, Josef ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The diploma thesis deals with acoustics with the main focus on acoustic emissions of buildings. The first part of the thesis aims to familiarize the reader with the field of acoustics as a whole. They will learn the basic concepts, quantities and relations that exist in acoustics. In the second part I focus specifically on the sources of noise in buildings and their surroundings, how can excessive noise affect health, what standards must be met and how to prevent excessive noise. The last part is devoted to practical measurements in the field, which is focused on real sources of noise in the city of Brno. The aim of this measurement is to compare the noise generated by buildings with other noises in the urban environment.
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Sound Visualization
Švihálek, Filip ; Bečková, Zuzana (referee) ; Říha, Kamil (advisor)
This diploma thesis deals with computing parameters of sound signal. It includes methods for describing and implementing these parameters. In the practical part, the main programm is created which is computing and visualizing parameters. The program mis implemented in Microsoft Visual Studio with cooperation of Freeglut and BASS libraries.
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Agreements and Disagreements between Automatic and Human Speaker Recognition
Valenta, Jakub ; Matějka, Pavel (referee) ; Rohdin, Johan Andréas (advisor)
Tato práce se zabývá problémem rozpoznáváním mluvčího. Uvedený pojem je definován a doplněn o jednotlivé metody, které s ním souvisí. Cílem práce je poukázat na shody a rozdíly mezi lidským a automatickým procesem rozpoznávání mluvčího. V úvodu práce jsou popsány teoretické poznatky z obou zmíněných oblastí, tj. na jaké aspekty lidské řeči se zaměřuje člověk, resp. automatický systém. Následně je provedeno několik experimentů, které mají za úkol srovnat tyto dvě metody. Tyto experimenty jsou vyhodnoceny tak, že je možné pozorovat, které testovací úlohy dokáže lépe vyřešit člověk, aby následně bylo možné tyto poznatky použít ke zlepšení funkce automatického systému. V závěru práce je takovýto návrh na zlepšení automatického systému předveden a otestován. Testování proběhlo úspěšně a byla zaznamenána vyšší přesnost při vyhodnocování. Takový výsledek tedy může být užitý v dalších výzkumech a umožnit tak další vývoj v oblasti automatického rozpoznávání mluvčích.
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Director of Czechoslovak Radio Jiří Horčička
Paruchová, Adéla ; Maršík, Josef (advisor) ; Lovaš, Karol (referee)
This bachelor thesis aims to describe the life and work of the director of Czechoslovak Radio (and later Czech Radio) Jiří Horčička. In the first part, the author briefly presents the history of Czechoslovak Radio and explains the contemporary context in which Jiří Horčička worked. The author pays special attention to the artistic field in the radio. Furthermore, the work briefly deals with the development of Czech radio drama and mentions the most important milestones in its history. The most important part of the work is devoted to the life and work of the director. The author deals with Horčička's childhood and his radio beginnings (for example, working in Disman's Radio Children's Ensemble). The work describes Horčička's directorial beginnings and is especially devoted to his first major work, the dramatization of Čapek's War with the Newts. It shows the beginning of Horčička's promotion of a new style in the development of modern radio production. At the same time, the work reflects the achievements of Czech radiophony in the 1960s at home and abroad. The author then devotes to the director's work during normalization and his staging of works of classical literature. The author also introduced Horčička's approach to stereo broadcasts, which fundamentally influenced his work. In the "Journey to...
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Mobile Applications For Human Hearing
Sensitivity Aassesment
Tinka, Dominik
The aim of this work is to investigate the human hearing and related audiometric examination methods. Based on the literature research I program mobile Android application for audiometric measurement. To ensure precise measurement of the sound output, I also implemented calibration unit in the application.
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