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Selected Milestones in the History of Sound Reinforcement
Středa, Jan ; HADRABA, Jakub (advisor) ; PINKAS, Martin (referee)
This master's essay shows a detailed view on the development of the use of sound engineering for live performance. It presents the evolution of technological advancements from the first audio recordings, through the emergence of the speakers, and to the first historical reinforcement of the spoken word. Following is the chronology of how live sound engineering has changed over time, and how the specific professions such as FOH sound engineer, monitor sound engineer, and system engineer have evolved. It also discusses how the production and rental companies formed. It explores in detail "The Wall Of Sound" system, which was very unique at the time. The conclusion of the historical overview, that this paper discusses, ends with the emergence of the digital era. Modern reinforcement methods used today are demonstrated by the realization of the sound system of the London stadium during the 2012 summer Olympic games.
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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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Measurement of the reverberation time
Hořák, Pavel ; Ryndová, Anna (referee) ; Jedelský, Jan (advisor)
This bachelor thesis deals with issues concerning measuring of reverberation time in closed rooms. Two evaluation methods are described in this thesis; integrated impulse response method and interrupted noise method. Data were recorded with the aid of acoustic module Photon+ and RT Pro 7.1. software. Practical part comprises implementation of evaluation programme in Matlab environment. Computation of reverberation curves is a major output of the thesis. Individual methods are compared on the basis of discovered figures.
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Digital modeling of the orchestra sound
Puczok, Daniel ; Pellant, Karel (referee) ; Doložílek, Miroslav (advisor)
This report is guide along simulation of sound sources and orchestra. Basic physical characteristics necessary to the simulation of sound sources are described here. Description of the creation of directivity files in ODEON and theirs conversion from CATT-Acoustic to ODEON are described here too. Acquired directivity files were used for simulation of orchestra and for testing the directivity characteristics to room acoustics parameters.
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Akustic of the musical club
Dostál, Miroslav ; Berka, Pavel (referee) ; Donaťáková, Dagmar (advisor)
This master’s thesis deals with the problems of interior acoustics. Within the scope of the thesis measurements were taken, followed by 3D modeling and subsequent design modifications of Olomouc acoustic music club Metro. The calculations used a specialized software (Odeon Room Acoustics Program). The result of the work is a proposal of suitable reconstruction and acoustic treatment, which will be achieved by optimalization of reverberation time, in an effort to improve the physical properties of the object.
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Reconstruction of cultural education centre
Hrůza, Vojtěch ; Berka, Pavel (referee) ; Donaťáková, Dagmar (advisor)
This master’s thesis deals with matters of interior acoustics. Within the scope of the thesis, a design alteration proposal in terms of enhancing sound quality and reverberation time of an existing multi-purpose cultural hall situated in town of Karvina was carried out. First design draft was made using manual calculation process and processed afterwards using specialized software (Odeon Room Acoustics Program). Within the thesis’s specialization study, a design of forced ventilation combined with heat recovery and new roof support structure using wooden truss girders was made. A design proposal dealing with building structure alterations and minor changes in operational facility layout was also made. New flat roofs layer assembly and exterior walls insulation was designed. Taking all proposed changes into consideration, new fire safety design documentation was made. Final outcome is therefore overall reconstruction of the given building object in pursuit of enhancing operational facility layout, overall interior and exterior esthetics and building physics parameters of the object.
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Assessment of diffusion coefficient
Mikeš, Petr ; Schimmel, Jiří (referee) ; Míča, Ivan (advisor)
Most acoustic measurements and parameters provided by a manufacturer of acoustic elements, which are offering additional solutions to room acoustics as well as acoustic construction works, are mainly limited to the parameters associated with absorption of individual elements. Until now, these diffusional elements have been neglected. Diffusi- onal panels are used to e.g. eliminate direct reflection of sound waves to the listener or reflection of sound waves concentrated at one point. Combination of absorptive acoustic panels and diffusion elements results in a space that is customised to the submitter’s needs.
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Measurement of the reverberation time
Hořák, Pavel ; Ryndová, Anna (referee) ; Jedelský, Jan (advisor)
This bachelor thesis deals with issues concerning measuring of reverberation time in closed rooms. Two evaluation methods are described in this thesis; integrated impulse response method and interrupted noise method. Data were recorded with the aid of acoustic module Photon+ and RT Pro 7.1. software. Practical part comprises implementation of evaluation programme in Matlab environment. Computation of reverberation curves is a major output of the thesis. Individual methods are compared on the basis of discovered figures.
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Study of acoustic properties of enclosed rooms
Kovařík, Filip ; Fišarová, Zuzana (referee) ; Šťastník, Stanislav (advisor)
The bachelor thesis deals with the acoustics of enclosed spaces, its behaviour and impact on the clarity and quality of presentation. Here is written transmission of acoustic energy, behaviour of spatial and building acoustics, which builds their diagnostic methods. The work also includes legislative requirements stipulated by the acoustics of enclosed spaces and the achievement of these requirements using different types of acoustic absorption capacity of materials, applications, and more specifically their basic properties. In the experimental part, the measurement of reverberation time in a selected room and the adaptation of acoustic properties so that attained legislative requirements
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Spatial composition
Fila, Jan ; RIEDLBAUCH, Václav (advisor) ; FILAS, Juraj (referee)
This bachelor thesis describes the spatial compositions with a special focus on music scores created since the end of the Second World War to the presence. The aim of thesis is to highlight the artistic value of these works and the particularities of the issue in their performance.
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