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Reconstruction of the multifunctional room music school with an emphasis on acoustics
Sehnal, František ; Donaťák, Vladislav (referee) ; Donaťáková, Dagmar (advisor)
The aim of the diploma thesis was to design the reconstruction of the music hall in the existing building of the private music school D-Music. The building is located in Kromeriz, cadastral area Kromeriz. I emphasize the design from the perspective of acoustics. The thesis also evaluated the noise load from the adjacent road II. class, for design hole fillings. It is a five-storey building with one underground and four above-ground floors. The music hall is located on the first floor and is designed multifunctionaly - for music with mobile acoustic absorbers for speech.
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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.
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Modelling of closed space acousticsby the beam method
Ryšavý, Marek ; Orlovský, Kristián (referee) ; Trzos, Michal (advisor)
The bachelor thesis describes the modeling of room acoustics using the ray tracing method. The first chapter deals with a general description of the basic properties of acoustic environment (wave acoustics, statistical acoustics and geometric acoustics). Then are described methods of calculating geometrical acoustics (image-source method, ray-tracing method and beam-tracing method). In the second chapter of this work is described in detail ray tracing methods and algorithm for calculate room acoustic using this method.
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The church in Lesna
Pospíšil, Vojtěch ; Berka, Pavel (referee) ; Berková, Petra (advisor)
This theoretical diploma thesis deals with room acoustics and the closely related issue of reverberation. Part of the work is a drafting of acoustic modifications of the church based on manual calculation, which was further modified in a specialized software Odeon Room Acoustics Program. For the surrounding buildings of the church was created a study of the noise in a program Hluk+ in order to assess what will be the noise impact of this new building on its surroundings. On the basis of specialization was created several proposals for the design of the church. The approximate proposal of the double-plated dome, a system of drainage of the coupling neck, and the ways the anchor of the hard large-format window glazing. The result of the work is suitable design of acoustic adjustments and improvement of the listening qualities for the future construction of this church.
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Objective Criteria for Room Acoustics Assessment
Zwins, Jiří ; Kurc, David (referee) ; Schimmel, Jiří (advisor)
The aim of this thesis is to define basic concepts of acoustics, a closer acquaintance with the defined objective criteria for evaluation of acoustic spaces and practical processing algorithms in Matlab. The central part is presented technique of calculating the reverberation time by integrating the measured room impulse response and its graphical output. The reverberation time is just one of objective assessment criteria acoustic spaces. The calculation algorithm is based on the principle of a closed space Dirac excitation pulse and the subsequent decline in energy determination of the reverberation time of the acoustic pressure. The analysis of the data samples were used specified areas in VUT Brno.
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Design and Realization of Acoustic Adjustments of Listening Room
Vajda, Michal ; Miklánek, Štěpán (referee) ; Schimmel, Jiří (advisor)
This bachelor thesis is devoted to the design of acoustic modifications of residential space and the subsequent implementation of these modifications. Its aim is to design an optimal solution of the space for listening to music in accordance with the Czech Technical Standards. The basic parameters investigated are reverberation time and acoustic quality criteria. The thesis deals with simulation in the EASE modelling program and addresses situations before and after acoustic treatment. The following methods and procedures are used to comprehensively address the above mentioned treatments and to achieve the set objective. Furthermore, the simulation is verified with a custom calculator in Excel. After using the absorbers suitable for adjustment, the implementation with the final measurement of the reverberation time is carried out. Finally, an additional modification design is created using Helmholtz resonators. The implemented methods achieve an optimal and frequency balanced reverberation time and the room can be used as a mixing hall for multi-channel sound recording.
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Testing of room acoustics
Toufarová, Tereza ; Špalek, Karel (referee) ; Sigmund, Milan (advisor)
This paper presents parameters of evaluation of acoustic quality of the space. It is divided into parts presenting physical principle of the origin and movement of the acoustic signal, principles of its processing with current technology and properties of the acoustic field. This is followed by an analysis of the musical part and notes on psychoacoustics. The document contains a description of relevant parameters of acoustic spaces and way in which we can reach desired results, including material analysis. The paper mainly focuses on description of relevant parameters of three acoustic spaces which were measured. The last part of the work is a program for elementary acoustical measurement, which can be provided by means of commonly accessible equipment such as a notebook or a personal computer.
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Civic amenities building
Netopilíková, Markéta ; Pilný, Ondřej (referee) ; Berková, Petra (advisor)
The aim of master‘s project is to design a new building of the office building in the cadastre area of Rohatec. The project is divided into three parts. The first part deals with the design of environment friendly and sustainable building. The second part is focused on the design of building services and the processing of building energy services. The third part is focused on the modeling of the noise study, the assessment of the soundproofing of the external cladding and the assessment of the reverberation time.
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Acoustical room impulse response database with parametrization of subsequent reverberation
Šiška, Jakub ; Schimmel, Jiří (referee) ; Balík, Miroslav (advisor)
Theoretical part of this bachelor’s thesis discusses description of impulse response, echogram, various methods of impulse response measurement and their comparison. Next part includes describing objective acoustical parameters, remaining energy analysis and its frequency dependent visualization by energy decay relief. Furthermore, existing databases of impulse responses are documented. The practical part consists of realization of own database of impulse responses and various graphical visualizations computed from these impulse responses. In the next part, algorithm for energy decay relief parameterization and modeling of impulse responses is described and realized in Matlab software. In the last part, a listening test is performed to verify impulse response modeling.
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Design and Realization of Acoustic Solution for Listening Room
Burda, Jan ; Balík, Miroslav (referee) ; Schimmel, Jiří (advisor)
This work is focused on the problem of room acoustics and its analysis options. It describes the basic criteria of acoustic quality space, commonly used materials and acoustic tiles. It also deals with modeling and acoustic analysis of space using EASE. The third part of thesis is a detailed description of the design of acoustic elements based on resonance principle. The last part deals with the measurement of the reverberation time.
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