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Dissertations / Theses on the topic 'Akustika'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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1

Dostál, Miroslav. "Akustika hudebního klubu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226529.

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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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Hora, Otakar. "Vnitřní akustika traktoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241671.

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The diploma thesis focuses on the analysis of the internal acoustics of a tractor using the finite element method. The thesis also contains the analysis of excitation effects from individual sources of vibrations and evaluating the response in the internal acoustic chamber with special focus on the driver’s head. The conclusion should suggest appropriate structural modifications to reduce interior noise.
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Hájková, Lenka. "Akustika malých ventilátorů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-355641.

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Dissertation thesis falls within area of indoor climate and deals with investigation of acoustic microclimate in sanitary rooms of residential buildings during a mechanical ventilation. Sources of a noise in these areas are small fans. The thesis contains the evaluation of the existing situation concerning the referred issue, physical laws of acoustics and theoretical basics of acoustics of air conditioning. The part of the thesis is experimental measurement which aims to evaluate the situation in real applications and the possibility of influencing the acoustic microclimate by affixing of sma
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Prokšová, Lucie. "Vnitřní akustika osobního automobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318703.

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The thesis is focused on the analysis of the acoustic properties of the interior of the passenger car by using the finite element method. Part of the work is an analysis of the excitation effects of individual vibration sources and the evaluation of the response in the interior of the cabin with a focus on the passengers of the vehicle and also solving the problem of the design of structural modifications in order to reduce the noise inside the cabin.
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Středa, Jan. "Vybrané milníky v historii nazvučování." Master's thesis, Akademie múzických umění v Praze.Hudební a taneční fakulta. Knihovna, 2015. http://www.nusl.cz/ntk/nusl-253867.

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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 Wa
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Mužík, Miroslav. "Problematika malých nahrávacích studií v ČR." Master's thesis, Akademie múzických umění v Praze.Hudební a taneční fakulta. Knihovna, 2013. http://www.nusl.cz/ntk/nusl-177853.

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Abstract The thesis presents an issue of small recording studios focused on music recording in the Czech Republic. It is a modern and fast-growing area of sound studios that has never been seriously described before. The first part describes small recording studios, reasons of their founding, differences between small and large studios. The second part is focused on compiling and evaluating of collected data acquired by personal visitation of those studios. It describes often problems, offered services, equipment and expertise of their owners. The data were collected during personal visitation
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Bernát, Michal. "Modelování prostorové akustiky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218346.

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This Master's Thesis deals with geometric modeling methods and theirs implementation in Octave (Matlab), which is ideal for the practical realization. The first part of the thesis is focused on a very simplified image source method, which is able to calculate and render the 2D impulse response of rectangular rooms. The next part is aimed on~the same method, but extended by three-dimensional simulation of polyhedral prism-shaped rooms. There is both an explanation of theoretical and mathematical aspects and a~documentation of the implemented source code. Extended image source method is able to
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8

Dohnal, Marek. "Akustická analýza mechanických hodinek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218746.

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This thesis is focused on the analysis of the characteristics of mechanical watches on the basis of their sound. There are theoretically analysed usual mechanical defects and disorders of watches and compensation of those defects. Particular attention is given to disorders, that can be extracted from the recorded acoustic sound of watches. There are also solved most appropriate methods of recording with a respect to the minimisation of ambient acoustic interference. The main part of this work is experimental measurement on watches and evaluation of achieved acoustic data. For this purpose, an
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Stratílek, Jakub. "Dozvuk autentického prostoru a jeho nahrazení umělým dozvukem." Master's thesis, Akademie múzických umění v Praze.Hudební a taneční fakulta. Knihovna, 2013. http://www.nusl.cz/ntk/nusl-177728.

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Subject of this written work is as natural acoustic reverberation phenomenon in enclosed spaces used for music production and its replacement. The first chapter defines the reverberation as a physical phenomenon and defines the basic concepts. The second chapter is about reverberation authentic space, its characteristics and specific characteristics. The next chapter describes the properties of artificial reverberation, its parameters and potential problems. This chapter also shows you how to adapt artificial reverberation. The fourth chapter is devoted to a comparison of authentic and artific
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10

Paliesek, Jakub. "Vliv akustiky prostředí na úspěšnost rozpoznávače řeči." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445549.

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This diploma thesis deals with impact of room acoustics on automatic speech recognition (ASR) accuracy. Experiments were evaluated on speech corpus LibriSpeech and database of impulse responses and noise called ReverbDB. Used ASRs were based on Mini LibriSpeech recipe for Kaldi. First it was examined how well can ASR learn to transcribe in selected environments by using the same acoustic conditions during training and testing. Next, experiments were carried out with modifications of ASR architecture in order to achieve better robustness against new conditions by using methods for adapation to
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Mikyška, Tomáš. "Zvuková dramaturgie rozhlasové hry." Master's thesis, Akademie múzických umění v Praze.Hudební a taneční fakulta. Knihovna, 2013. http://www.nusl.cz/ntk/nusl-177792.

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This thesis is dealt with one of the most important domain in preparatory and production works of radio drama - sound dramaturgy. In the first part I systemize sound material from the point of view of creativity focusing on its formative and semantic potential. Then I apply the previous findings considering the radio drama production itself. I distinguish two phase of sound-dramaturge`s work: phase of timeline construction and phase of building up the sound scene. There are many practical examples illustrating my partial conclusions in the thesis as well as contemplations of next radio drama s
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Hamouzová, Eva. "Problematika ozvučování prostor v oblasti nízkých frekvencí." Master's thesis, Akademie múzických umění v Praze.Hudební a taneční fakulta. Knihovna, 2015. http://www.nusl.cz/ntk/nusl-253760.

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This thesis offers insight to the issue of subwoolfer amplification in live sound application. The introduction discusses the role of subwoofers in sound practices and the impact of low-frequency spectrum of the human body. It describes a creation of PA system as process of design, construction and final control measurement. In first part thesis deals with principles of connecting several subwoolfer sources to the systems - Arrays. It describes Radiation patterns and evaluates consistency of sound field on low frequency range. Further part of work follow up the application of delay of whole s
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Sehnal, František. "Rekonstrukce multifunkčního sálu hudební školy s důrazem na akustiku." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-410088.

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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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14

Vozárová, Juliana. "Stanovení akustické pohltivosti materiálu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-432822.

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This diploma thesis deals with the determination of the material acoustic absorption in an impedance tube. The aim of the work is to propose a measuring experiment and to design measuring device with the intention of reducing costs. The aim is to carry out a measuring experiment on a manufactured measuring device. The results of the experiment are evaluated in terms of meeting the requirements formeasuring device. The results of the tested materials are compared with the values from the supplier.
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Smažinka, Josef. "Akustické emise budov." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2021. http://www.nusl.cz/ntk/nusl-433515.

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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 c
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Smažinka, Josef. "Akustické emise budov." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-410118.

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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 c
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17

Benson, Alexis. "Akustik och elevers uppfattningav ljudmiljön i klassrum : En undersökning av akustiken på gymnasieskolan NTI." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229836.

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Klassrumsakustik behandlar rumsliga förutsättningar för ljudutbredning där god talhörbarhet är av vikt för elevers och lärares välbefinnande och möjligheter till goda lärmiljöer. Även kognitiva förmågor som minnesfunktioner påverkas av ljudmiljöer, där lägre bakgrundsljudnivåer och kortare efterklangstider förordas av forskning och byggnadstekniska standarder. Bakgrundsljudnivåer, efterklangstider T20 och reflexnivåer C50 kan tillsammans ge en bild av en god ljudmiljö för lärande i klassrum. I denna undersökning har fem klassrums ljudmiljöer utvärderats och enkätundersökningar har använts för
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Ecler, Matěj. "Optimalizace vrtulí pro bezpilotní prostředky s uvážením hlučnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417465.

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This diploma thesis deals with optimization of propellers with the aim to reduce their noise level. Based on the measurement of noise level of serial propellers, major propeller noise sources were evaluated. Subsequent 2D simulations of the flow on the individual profiles along the propeller span revealed the locations of separation bubbles, which were identified as a potential source of the noise. Based on these findings, propellers were equipped with turbulator trips of various dimensions and their effect on the noise level and efficiency of the propellers was experimentally verified. The re
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Mickaitis, Marius. "Statybinių konstrukcijų jungčių įtaka vibracijų silpimui." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20060116_132836-62219.

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The thesis consists of general characteristics, list of notations, introduction, four main chapters, general conclusions, 56 pictures, 2 tables and list of references. The total scope of the dissertation is 106 pages.
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Novotný, Ota. "Psychoakustická měření binaurálních vlastností lidského sluchu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218742.

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This diploma thesis deals with a binaural hearing issues (it means hearing by both of ears), a human hearing ability to locate position of a sound source at three-dimensional space and parameters that affect this ability. In the second part, it focuses on psychoacoustic experiment, its main features and errors that can occur and which affect a results credibility. Method of pair comparisons is described more closely here. The last part of this thesis describes a technical solution of experiment in Java environment. The application should have a graphical interface and should be able to registe
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Toufarová, Tereza. "Testování prostorové akustiky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219093.

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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
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Januševičius, Tomas. "Research on the acoustic qualities of building materials and structures and their use for noise reduction in premises." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110621_170924-08631.

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The dissertation analyses the sound-insulating qualities of building materials and structures. The aim of the dissertation is to investigate and indentify, under natural conditions and in a noise suppression chamber, the structures which, as internal and external components of buildings, would ensure the protection of inte-rior rooms against noise and to model on this basis the sound reduction indices of structures. The work deals with several main tasks: investigations of the acoustic quali-ties of building materials and structures in a noise suppression chamber and under natural conditions;
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Pettersson, Jonas. "Roland TD-30K vs. Akustiska trummor : En jämförelse mellan akustiska och digitala trummor." Thesis, Luleå tekniska universitet, Institutionen för konst, kommunikation och lärande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68706.

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Det blir allt vanligare med digitala instrument inom många musikstilar. Den här publikationen undersöker hur nära Rolands digitala trumset TD-30K är att kunna ersätta ett akustiskt trumset, precis som keyboarden i princip har ersatt pianot, genom att jämföra två låtar som är inspelade med både akustiska och digitala trummor för att kunna peka på tydliga skillnader i både spelkänsla och ljudkvalitet. Arbetet innehåller även en detaljerad beskrivning av hur trummorna är inspelade med mikrofonval, placering av mikrofonerna, mixningsprocess och utrustning för att ge en tydlig b
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Sandin, Elin. "Fönstrets akustiska påverkan på lättbyggnadskonstruktioner." Thesis, Luleå tekniska universitet, Drift, underhåll och akustik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79368.

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Examensarbetet sker i samarbete med ett företag som bygger flerbostadshus i trä, genom industriell produktion av moduler. Tyréns har tillsammans med företaget, Lindbäcks Bygg, upptäckt att fönster med hög ljudisolering inte presterar som förväntat i deras ytterväggar, byggda i lättbyggnadsteknik. Med prestatanda menas ljudisolering mot ljud utanför byggnad. Detta är konstaterat i två tidigare projekt med Lindbäcks Bygg. Även i diskussion med andra lättbyggnadstillverkare har även problematiken bekräftats. Målet är att finna lösningar för att förbättra den sammansatta ljudisoleringen för ytterv
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Salaberria, Fuldain Miren Jasone. "Zuberera barkoxtarreko bokalen azterketa akustikoa." Bordeaux 3, 1998. http://www.theses.fr/1998BOR30073.

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A partir d'un corpus specifiquement construit, les voyelles du dialecte basque souletin de barcus sont etudiees par la phonetique acoustique, experimentale. Les phrases du corpus, enregistrees par dix-sept locuteurs locaux, donnent lieu a digitalisation informatique. Celle-ci permet d'utiliser un logiciel d'analyse acoutique (+ ahotsa ;) pour definir les caracteristiques acoustiques des voyelles retenues pour l'analyse. L'etude est menee, d'abord a partir du premier sous-corpus, c'est-a-dire dans les environnements consonantiques [p], [t], [k], pour ensuite etre completee a partir des environn
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Lundblad, Ohan. "The prospects of using acoustic particle separation techniques to separate heavy metals from lake- and seabed sediments." Thesis, KTH, Marcus Wallenberg Laboratoriet MWL, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299414.

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This work aims to investigate if it is realistic to use acoustic particle separation techniques for separating heavy-metals from pump-dredged seabed sediments on a large scale. A premise for the project has been that the material should undergo hydrothermal carbonization (HTC) before acoustic treatment. A number of scientific articles have been studied to understand where the frontier is regarding manipulating small particles in fluids using high frequency sound (ultrasound). Discussion has been held with experts on ultrasound, HTC and chemical analyses. In Conclusion, the feasibility of remov
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Puczok, Daniel. "Digitální modelovaní zvuku orchestru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228251.

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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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Pospíšil, Vojtěch. "Kostel na Lesné." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265717.

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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 d
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Pyykkö, Johan. "Ljudegenskaper hos samverkansbjälklag : en undersökning av luft och stegljudsisolering hos ett prefabricerat bjälklagselement sammansatt av betong och trä." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-8678.

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Denna rapport ingår som avslutande examensarbete i magisterutbildning i byggteknik med inriktning hållbart samhällsbyggande. Rapporten behandlar akustiska egenskaper hos ett prefabricerat samverkansbjälklag sammansatt av en tunn betongplatta, konstruktionsvirke och en massivträplatta. Dels görs en sammanfattning över byggbranschens miljöpåverkan och hur effektivare användning av byggnadsmaterial kan bidra till en mer hållbar utveckling. Det undersöks också hur ljud-miljöer påverkar människor och hur detta behandlas med akustiska krav inom byggandet i Sverige ur ett hållbarhetsperspektiv. Det a
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Farhadian, Amir. "Akustik och säkerhet i inomhusarenor." Thesis, KTH, Farkost och flyg, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37885.

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The background to the study is that within the next ten years about 50 new multi-purposeindoor arenas will be built. These are used for various events such as sports, concerts, etc. In order to achieve a high level of security in the case of danger alarm signals and alarmmessages must be heard well by the visitors. ÅF-Ingemansson wanted to show builders the importance of good speech perception and that it is not observed in arenas today. They conducted technical tests on two large multi purpose indoor arenas to develop parameters that affect speech perception in the arena.To get a subjective v
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Currid, Brian. "Die Akustik der nationalen Öffentlichkeit." Bärenreiter Verlag, 2000. https://slub.qucosa.de/id/qucosa%3A36657.

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Schöld, Joanna. "Musik och akustik : En studie om hur akustik och efterklang kan forma ett musikaliskt framträdande." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-84847.

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Detta arbete handlar om hur akustik kan forma en musikers musikaliska tolkning. Tanken med arbetet är att få en större inblick kring hur akustiken formar mig som musiker, men även hur det formar mitt musikaliska framträdande och min musikaliska tolkning. Studien genomfördes genom att jag spelade tvärflöjt i de olika akustiska miljöerna Black Box-Studio Acusticum, Saursalen- Norrbottensmusiken- Studio Acusticum samt Hortlax kyrka-Piteå. På varje plats spelade jag samma 3 stycken, som alla var av olika karaktär. När jag hade spelat på varje plats skrev jag ner mina reflektioner om
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Alrashid, Ivan. "Ljudhändelsedetektor med distribueradeLoRa-anslutna akustiska sensorer." Thesis, Linköpings universitet, Elektroniska Kretsar och System, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174830.

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Att detektera ljudnivå ger mycket information i stadsområde såsom bullernivå, antal skottlossningar, antal kollisioner och detekterar plats på en ljudkälla. I detta projekt monteras en ljuddetektor som kommunicera via LoRa Long Range när ljudet överstiger ett tröskelvärde. Ljuddetektorn implementeras som en fristående modul bestående av tre befintliga moduler. Modulerna som används i projektet innefattar: Lopy4 med Expansionskort 3.1, GPS modul och Ljud sensor  Ljudnivån, batterinivå, koordinater, datum och tid överförs via LoRa-nät till en gateway och vidare till The Thing of Network, TTN web
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Pavlikovský, Vladislav. "Využití reverberátorů pro úpravu akustiky prostoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220198.

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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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Húserka, Jozef. "Návrh reverberátoru pro simulaci akustiky prostoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220649.

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This thesis deals with artificial simulation of acoustic spaces by using reverberators. Output of this document consists of four reverberation algorithms and function that evaluates objective parameters of acoustic space from impulse responses. Reverberators and script were implemented using Matlab. Graphical user interface is used to present all of the algorithms for easier usability. First chapter deals with objective parameters of acoustic spaces and the ways they are computed from impulse response. Second chapter describes various structures which are used to build reverberators. Those str
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Palm, William, and Kenny Åhlfeldt. "APS - Akustiskt positioneringssystem." Thesis, KTH, Tillämpad maskinteknik (KTH Södertälje), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150776.

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Gajdoš, Petr. "Akustická diagnostika strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230417.

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The aim of this master´s thesis is to work out a comparison and evaluation of selected methods used for sound field mapping. Thesis will include software tools and results of sample measurement on test object for each mapping method.
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Johansson, Mattias, Peter Nordström, and Sebastian Ärleryd. "Chord King : Guitar Hero för akustiska gitarrer." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-158781.

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Ett spel för akustiska gitarrer som liknar Activisions Guitar Hero har skrivits i programmeringsspråket Python. Spelet har ett grafiskt användargränssnitt och ett flertal låtar finns att välja emellan. I spelet visas de ackord eller enskilda strängar som ska spelas och när man ska spela dessa. Poäng delas ut om man träffar rätt ackord eller sträng. Spelet fungerar bra i ett normaltyst rum om gitarren spelas ganska rent. Förbättringsmöjligheterna är goda.
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Jonsson, David. "Automatisk detektering av akustiska resonansfrekvenser i trästockar." Thesis, Uppsala universitet, Signaler och System, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-181499.

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In order to measure the quality of the logs, one can with help of Fast Fourier Transform technique get the signals resonance peaks. With help of these peaks you can see whether the quality of a tree is good or bad. This report contains the work of a where a program has been developed to be able to process a vibration created by an automatic hammer hitting on a log of wood. From the processed signal the program should be able to show both the raw wavesignal and the processed measured data from the resonance peaks. Beyond the raw wavesignal and resonance peaks the program should also be able to
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Hajder, Arnes, and Rodrigo Loyola. "Mätning av akustiska parametrar i olika lokaler." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-44282.

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Syftet med denna rapport är att ta reda på hur en akustisk mätning går till. Mätningarnas resultat används för att se om lokalen uppfyller de krav som ställs på de olika parametrarna för lokalens ändamål. Parametrarna är efterklangstid, klarhetsgrad för tal och musik. För att göra en sådan mätning krävs både teoretiska och praktiska kunskaper inom akustik och teknik. Vi läste i en hel del litteratur om ämnet akustik och hur man genomför en akustisk mätning. Vi gjorde ett antal mätningar i olika lokaler på skolan, lokalerna som vi valde att mäta i var konsertsalen och studion. Vi mätte efterkla
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Nytra, Jan. "Řešení problémů akustiky pomocí nespojité Galerkinovy metody." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232174.

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Parciální diferenciální rovnice hrají důležitou v inženýrských aplikacích. Často je možné tyto rovnice řešit pouze přibližně, tj. numericky. Z toho důvodu vzniklo množství diskretizačních metod pro řešení těchto rovnic. Uvedená nespojitá Galerkinova metoda se zdá jako velmi obecná metoda pro řešení těchto rovnic, především pak pro hyperbolické systémy. Naším cílem je řešit úlohy aeroakustiky, přičemž šíření akustických vln je popsáno pomocí linearizovaných Eulerových rovnic. A jelikož se jedná o hyperbolický systém, byla vybrána právě nespojitá Galerkinova metoda. Mezi nejdůležitější aspekty t
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Torsteinbø, Anders. "Akustisk analyse av snorking." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18324.

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I denne oppgaven har i hovedsak to teorier blitt undersøkt :1) er det mulig ved hjelp av ørepropper med høyttaler og mikrofon ådetektere snorking og deretter spille tilbake lyder som får personen tilå stoppe snorkingen, og2) er det mulig å klassisere ulike snorketyper ved hjelp av analysemetoderbrukt i talegjenkjenning.Først ble det utviklet og testet to forskjellige ørepropper som varbehagelige å sove med. Den ene av de to ble brukt videre i arbeidetmed å detektere og analysere snorkingen, og viste seg å fungere tilfredstillende.Vide
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Lacko, Tomáš. "Akustická simulace jedoucího automobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218916.

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This project includes an overview of different processing methods phonograms. It focuses primarily on time - frequency analysis carried out using Fast Fourier Transform (STFT). The main essence is to evaluate the time - frequency analysis of recorded motor vehicle, driving at different options, together with an analysis of driver activity in these variants. Based on the results of the analysis deals with the creation of synthetic audio signals of motor vehicle records. Further addresses the creation of the program for acoustic simulation engine is running smoothly when driving a car. Processin
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Jelínek, Ondřej. "Akustické mikroklima nevýrobních objektů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225943.

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This master´s thesis focuses on effect of acoustic microclimate in non-production buildings to human. Within elaboration this topic was made measurment acoustic power level and created protocols by valid technical standards and law. I dedicate to damping noise and aerodynamic noise in airconditioning in part topic analysis. The part aplication on real object deal with assessment current status and draft measure for improve acoustic ratio in laboratories in center of research located in Brno. That includes describe of air-cndition unit and development two variants and their rating.
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Gunnarsson, Emil. "De akustiska skillnaderna mellan två städer i Sverige." Thesis, Högskolan i Skövde, Institutionen för kommunikation och information, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-6382.

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Studien bygger på två 24 timmars ljudinspelningar utförda från två olika städer iSverige. Syftet med undersökningen var att se om det gick att urskilja akustiskaskillnader mellan två olika städer i Sverige. Studien har tagit mycket inspiration av R.Murray Schafer arbeten inom soundscaping, samt Pijanowskij, et al., (2011) ramverkför att kunna kategorisera ljuden utifrån dess ursprung och funktion. Olikaundersökningar har genomförts med hjälp av kvalitativa intervjuer, samtfrekvensanalyser av det inspelade materialet. Båda metoderna användes tillsammansvid utvärderandet av ljudmaterialet för at
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Hořák, Pavel. "Modelování zvukového pole v uzavřeném prostoru na nízkých kmitočtech." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-401957.

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This diploma thesis deals with issues of low frequency acoustics and simulation. In this work the FTDT method of simulation is used. Measuring and simulation are focused on live-sound system and are evaluated using basic sound system optimisation techniques. Main output of this work is verification of basic low-frequency acoustics principles using simulation and measuring.
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Ohlinger, Alexander Klaus [Verfasser]. "Akustik mit optisch gefangenen Nanopartikeln / Alexander Klaus Ohlinger." Aachen : Shaker, 2011. http://d-nb.info/106904914X/34.

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Mayer, Michael [Verfasser], and Mario [Akademischer Betreuer] Liu. "Akustik granularer Materie / Michael Mayer ; Betreuer: Mario Liu." Tübingen : Universitätsbibliothek Tübingen, 2012. http://d-nb.info/116269954X/34.

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Franzén, Henny, and Nilsson Carl Elmondt. "Akustiska värden i platonkonstruktioner : Minimera lågfrekvent buller i skolmiljöer." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260248.

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I denna studie har man fokuserat på hur omfattande ljudnivåerna kan vara på ett så kallat flytande golv. Det har fördjupats i konstruktioner med Platonmatta för att få en uppfattning om hur de akustiska faktorerna yttrar sig när någon beträder golvet. Studien jämför resultat av steg- och trumljudnivåer med Granabkonstruktioner, som är en annan typ av flytande golv, samt hur Platonkonstruktionen står sig i förhållande till de lagstadgade riktvärdena. I denna studie har det fokuserats på hur ljudet uppfattas både objektivt och subjektivt eftersom mätvärden i vissa fall inte stämmer överens med d
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Hammer, Joakim. "Akustisk posisjoneringssystem for fisk : PinPoint." Thesis, Norwegian University of Science and Technology, Department of Engineering Cybernetics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10484.

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<p>Sammendrag Hensikten med denne masteroppgaven har vært å utvikle en autonom hydrofonbøye for PinPointsystemet. Hydrofonbøyen består av tre moduler; en kommunikasjonsmodul, en GPS-modul og en hydrofonmodul. PinPoint-systemet består av slike hydrofonbøyer som kommuniserer via integrerte radiosendere. Informasjon fra hydrofonbøyene skal brukes til å bestemme posisjonen til et fiskemerke med en akustisk transduser. I rapporten blir det gitt en beskrivelse av hydrofonbøyen på systemnivå som viser hvordan disse modulene sammen danner en komplett hydrofonbøye. Det blir også gitt en detaljert beskr
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