Дисертації з теми "Sound zone"
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Olik, Marek. "Personal sound zone reproduction with room reflections." Thesis, University of Surrey, 2015. http://epubs.surrey.ac.uk/807178/.
Повний текст джерелаColeman, Philip. "Loudspeaker array processing for personal sound zone reproduction." Thesis, University of Surrey, 2014. http://epubs.surrey.ac.uk/805527/.
Повний текст джерелаFrancombe, J. "Perceptual evaluation of audio-on-audio interference in a personal sound zone system." Thesis, University of Surrey, 2014. http://epubs.surrey.ac.uk/806072/.
Повний текст джерелаRoussel, Georges. "Contributions à la mise au point de méthodes adaptatives de reproduction de champs sonores multi-zone pour les auditeurs en mouvement : Sound zones pour auditeurs en mouvement." Thesis, Le Mans, 2019. http://www.theses.fr/2019LEMA1018/document.
Повний текст джерелаThe growing number of audio devices raises the problem of sharing the same physical space without sharing the same sound space. SoundZones make it possible to play independent and spatially separated audio programs by loudspeaker array in combination with sound fieldreproduction methods. The problem is then split into two zones: the Bright zone, where the audio content must be reproduced and theDark zone, where it must be cancelled. There are many methods available to solve this problem, but most only deal with auditors in astatic position. They are based on the direct resolution of adaptive optimization methods, such as the Pressure Matching (PM) method.However, for moving users, these methods have a too high computation cost, making it impossible to apply them to a dynamic problem.The aim of this thesis is to develop a solution offering a level of complexity compatible with a dynamic control of Sound Zones, whilemaintening the performance of conventional methods. Under the assumption that displacements are slow, an iterative resolution of the PMproblem is proposed and assessed. The LMS, NLMS and APA algorithms are compared on the basis of free field simulations. The LMSmethod is the most advantageous in terms of complexity, but it suffers from a reproduction error. A memory effect limiting the reactivityof the algorithms is also highlighted. It is corrected by implementing a leaky variant (Variable Leaky LMS or VLLMS) introducing aforgetting factor
Marshall, Kingsley. "The Gulf War aesthetic? : certain tendencies in image, sound and the construction of space in 'Green Zone' and 'The Hurt Locker'." Thesis, University of East Anglia, 2018. https://ueaeprints.uea.ac.uk/67801/.
Повний текст джерелаPEPE, GIOVANNI. "Deep Optimization of Discrete Time Filters for Listening Experience Personalization." Doctoral thesis, Università Politecnica delle Marche, 2022. http://hdl.handle.net/11566/293461.
Повний текст джерелаThis thesis describes the study of Machine Learning techniques for the optimization of digital filters for Multipoint Audio Equalization and Personal Sound Zones (PSZ) in a car scenario. Multipoint Audio Equalization is a topic that aims to improve the audio quality in a loudspeaker system using digital filters. The Personal Sound Zones is a task that allows the reproduction of different sounds in several regions contained within a listening environment where multiple listeners are present. An up-to-date state of the art on digital filter design, Multipoint Audio Equalization and PSZ techniques have been reported in this thesis. Neural network-based optimization techniques, referred to as Deep Optimization, proved to be the best performing and the most analyzed methods within the proposed approaches. The technique exploits neural networks to iteratively optimize the filter parameters using the feed-forward and backpropagation, updating the weights with an optimizer. A new Deep Optimization architecture has been analyzed, called Bias Network (BiasNet), which uses the bias terms as input and updates its weights to obtain the optimal filters. Experiments for Multipoint Audio Equalization with FIR filters were performed within various automotive scenarios, achieving better results than the state-of-the-art techniques. Other experiments were carried out with Parametric IIR filters, achieving better performance than baseline IIR and FIR filter design methods. Furthermore, analyzing the computational cost, Parametric IIR filters require less operations and memory. Finally, experiments were conducted to design FIR and Parametric IIR filters for PSZ, introducing regularization and penalty terms to eliminate artefacts generated by FIR filters. The results are very promising, achieving a high acoustic contrast keeping high sound quality. IIR filters achieved comparable results with a lower computational cost than FIR filters.
Pages, Guilhem. "Zones d’écoute personnalisées mobiles par approches adaptatives." Electronic Thesis or Diss., Le Mans, 2024. http://www.theses.fr/2024LEMA1012.
Повний текст джерелаThe thesis deals with the creation of mobile sound zones using adaptive approaches. The methods in use for the creation of sound zones aim to jointly resolve the sound reproduction in one zone and the minimisation of the energy of the signal reproduced in the other zone, from an array of loudspeakers. The thesis is divided into two parts: the estimation of impulse responses and moving sound zones. The aim of this thesis is to create two zones in space with a controlled sound field, which can move in space over time. In the first part, the estimation of the system's impulse responses is detailed, a necessary prerequisite for sound zone algorithms. Based on existing adaptive methods for estimating time-varying multi-input, multi-output systems, a new method applied to acoustics and MISO is presented. This method, called MISO-Autostep, makes it possible to estimate impulse responses over time without having to fine-tune any parameters. In the second part, the BACC-PM sound zone algorithm is rewritten in recursive form. This ability to update the filter coefficients over time opens up the possibility of adapting to temporal changes in the system geometry. Finally, preliminary results are presented with the joint use of the two adaptive algorithms in the case of an abrupt change in the system geometry
Kalužová, Adéla. "Vliv terapeutického ultrazvukového pole a metalických nanočástic na nádorové buňky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220854.
Повний текст джерелаRutger, Kastby Claes. "Active control for adaptive sound zones in passenger train compartments." Thesis, KTH, Farkost och flyg, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-143502.
Повний текст джерелаRusina, Michal. "Stanovení vlastností ultrazvukových sond." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221368.
Повний текст джерелаWright, Mark. "Contact zones and elsewhere fields : the poetics and politics of environmental sound arts." Thesis, University of the Arts London, 2015. http://ualresearchonline.arts.ac.uk/8662/.
Повний текст джерелаBaykaner, K. "Predicting the perceptual acceptability of auditory interference for the optimisation of sound zones." Thesis, University of Surrey, 2014. http://epubs.surrey.ac.uk/806090/.
Повний текст джерелаSanalatii, Maryna. "Synthèse d'un champ acoustique avec contraste spatial élevé." Thesis, Le Mans, 2018. http://www.theses.fr/2018LEMA1005/document.
Повний текст джерелаThe goal of this thesis is the design of a transportable speaker system, able to generate a predefined and focused sound field with a high spatial contrast. This system has eventually to allow carrying out different types of studies, for example acoustic transmission loss tests or vibration tests in non-anechoic conditions. The minimization of the number of driven channels and the number of transducers is one of the main goals of the work. The choice of the number of sources and the selection of their optimal positions in order to generate a target acoustic field has no trivial solution. To answer this question, the proposed method is based on the decomposition of the source radiation into a series of independent orthogonal functions (the "radiation modes"), constructed numerically via a singular value decomposition of the impedance matrix. By filtering the evanescent terms, the far field can be reconstructed using a small number of terms. In addition, the method allows the estimation of an efficient flow distribution to generate the target field. With the proposed method having been scarcely studied in the literature, the first part of the thesis is devoted to the problem of the experimental validation of the direct method and the study of the main parameters that are influencing the result. The problem of sources positioning in order to synthesize a predefined and focused sound field is discussed in the second part of the thesis
Auger, Fernand. "Altération des roches sous influence marine, dégradation des pierres en oeuvre, simulation accélérée en laboratoire." Poitiers, 1987. http://www.theses.fr/1987POIT2018.
Повний текст джерелаKeller, Michael J. "Variation in call structure of the gray treefrogs, Hyla chrysoscelis and Hyla versicolor : direct effects of polyploidy and biogeographic patterns /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9988675.
Повний текст джерелаWennström, Viktor, and Andreas Rehn. "Innovation genom metoden Design Thinking - Nya sätt att läsa : En utvärderande studie av Läspodden från ZON 164." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277938.
Повний текст джерелаPart 1 On behalf of the Stockholm City Cultural Administration and Kista Library, we have worked out new solutions to engage young guys in Kista in the library's daily activities. The target group of young guys between the ages of 13-19 was chosen as this group is mainly missing from the library today. Through focus groups and conversations with young people, we have gained insight into their wishes. These insights have been processed and led to four different concepts. We chose to work on two concepts that were further developed into the concept Zone 164. This includes our innovation, the reading pod, which enhances the reading experience and the exhibition archetypes. Both are developed solutions that meet young people's need for role models, to have a place to be, to feel community, and to have fun with their friends. Through the Zone 164 concept, we hope that Kista Library can challenge the notion of what reading and library activities are and become a place where young guys can feel more involved. Part 2 In order to continue the work with the reading pod, a more in-depth analysis was carried out to investigate whether the properties of the reading pod enhanced the reading experience or not and whether the reading pod promoted the reproduction of information. Two separate studies, quantitative and qualitative, were conducted on two groups of 33 and 10 persons. The results of the first study show that the use of the reading pod is perceived as positive and that the reading experience was considered to be enhanced. The results of the second study showed a weak positive relationship between the use of the reading pod and information retrieval, but no conclusions about causality can be drawn.
Rehn, Andreas, and Viktor Wennström. "Nya sätt att läsa - Innovation genom metoden Design Thinking : En utvärderande studie av läspodden från Zon 164." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277939.
Повний текст джерелаPart 1 On behalf of the Stockholm City Cultural Administration and Kista Library, we have worked out new solutions to engage young guys in Kista in the library's daily activities. The target group of young guys between the ages of 13-19 was chosen as this group is mainly missing from the library today. Through focus groups and conversations with young people, we have gained insight into their wishes. These insights have been processed and led to four different concepts. We chose to work on two concepts that were further developed into the concept Zone 164. This includes our innovation, the reading pod, which enhances the reading experience and the exhibition archetypes. Both are developed solutions that meet young people's need for role models, to have a place to be, to feel community, and to have fun with their friends. Through the Zone 164 concept, we hope that Kista Library can challenge the notion of what reading and library activities are and become a place where young guys can feel more involved. Part 2 In order to continue the work with the reading pod, a more in-depth analysis was carried out to investigate whether the properties of the reading pod enhanced the reading experience or not and whether the reading pod promoted the reproduction of information. Two separate studies, quantitative and qualitative, were conducted on two groups of 33 and 10 persons. The results of the first study show that the use of the reading pod is perceived as positive and that the reading experience was considered to be enhanced. The results of the second study showed a weak positive relationship between the use of the reading pod and information retrieval, but no conclusions about causality can be drawn.
Cartaya, Jorge E. "Listening/Reading for Disremembered Voices: Additive Archival Representation and the Zong Massacre of 1781." FIU Digital Commons, 2017. http://digitalcommons.fiu.edu/etd/3187.
Повний текст джерелаSaxby, Gillian Elizabeth. "The use of negotiation in coastal zone management : an analysis of the Fraser Estuary Management Program and the Puget Sound Water Quality Authority." Thesis, 1992. http://hdl.handle.net/2429/2273.
Повний текст джерелаRyu, Jongseong. "Comparing expert preferences across two-large scale coastal management programs in Puget Sound (USA) and Masan Bay (South Korea) : implications for resilience /." Thesis, 2009. http://nsgl.gso.uri.edu/washu/washuy09002.pdf.
Повний текст джерелаBelanger, Kevin Karl. "New observations of relative sea level from the Northern Cascadia Subduction Zone: Cordilleran ice sheet history and mantle rheology." Thesis, 2013. http://hdl.handle.net/1828/4558.
Повний текст джерелаGraduate
0372
Krishna, Kumar G. V. "Characterization of Flow Induced Noise Received by an Array Placed at Stagnation Point of an Underwater Axisymmetric Body." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/3799.
Повний текст джерелаKrishna, Kumar G. V. "Characterization of Flow Induced Noise Received by an Array Placed at Stagnation Point of an Underwater Axisymmetric Body." Thesis, 2017. http://etd.iisc.ernet.in/2005/3799.
Повний текст джерелаHildebrandt, Mandy. "'The sight of sound': Gebärdensprachdolmetschen auf der lautsprachlichen Theaterbühne am Beispiel einer gedolmetschten Aufführung von 'My fair lady' am Hans Otto Theater Potsdam." 2015. https://slub.qucosa.de/id/qucosa%3A7462.
Повний текст джерелаXIE, ZONG-HAN, and 謝宗翰. "Landscape inspired by sound localization — Study of Zong-Han Xie’s Art Works." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/t3467z.
Повний текст джерела國立臺灣藝術大學
美術學系
105
The idea of sound localization is to get familiar with new places through self-senses. While the author places himself in new environment, he tends to connect self-consciousness with past experiences. In advance, what he felt from his senses depicted the outline of scenery through imagination. Author strives to deal with anxiety and emotions which cause self-enclosure to consciousness when creating. In chapter 2, referencing studies of consciousness from phycology and phenomenology as theoretical fundamentals. In chapter 3, continuing on to author's creation through visualizing sound and space, Mainly depicting sound as three different parts, line, visual, space. Lastly, comparing works with the idea of " Karesansui ", and concept of space. Through demonstrating consciousness and further research, making it return to the original point of status. By doing so, it takes emotions which were sealed to a clear and objective outside world.
Zhang, Wen-Hao, and 張文豪. "A Study on Sound Absorption Characteristics of Perforated Mong-Zong Bamboo Composite Panel." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/89413887395080151864.
Повний текст джерела國立中興大學
農村規劃研究所
96
Eco-awareness is growing up in these years around the world, and the perforated bamboo composite panel is a kind of the building materials that green. Because it is beautiful and natural, firm but portable, the prospect of the perforated bamboo composite panel is potentially. This study discusses all factors that can affect the sound absorption characteristics of perforated bamboo composite panel, including the perforation, backing materials, and air space. Besides, in order to upgrading the sense of beauty, and discusses the cover rate of faceplate which on the perforated panel, too. Afterward this study will try to figure out a suitable prediction formula for resonant frequencies of perforated bamboo composite panel to make the designer surveyed the resonant frequencies quickly and simply. There are some conclusions as follow: 1.In the same perforation, backing materials, and air space, the more faceplate covered rate(from 0% to 66%), the lower the resonant frequencies goes, and the vibrat absorption effect of faceplate make the sound absorption coefficient a little promotion. 2.In the same cover rate, backing materials, and air space,the more perforation is(form 7.9% to 14.8%),the higher the resonant frequency goes, and the high frequencies goes up, too. 3.When the perforated bamboo composite panel backing with Malamine foams, the sound absorption coefficient of whole frequencies is greater than the without one, and the resonant frequency goes lower slightly,too. 4.In the same cover rate, perforation, and backing materials, the larger the air space is(from 5cm to 10cm), the lower the resonant frequency goes,but there is no variation in high frequency(over 2000Hz).It showed that make the air space get larger would not weaken the sound absorption coefficient in high frequency, and also make the sound absorption coefficient in low frequency increasingly. This study have also found out a suitable prediction formula for resonant frequencies of perforated bamboo composite panel by multiple regression analysis, too.
Masamba, Magalie. "Establishing special economic zones in the Democratic Republic of Congo : in search of a sound legal framework." Diss., 2014. http://hdl.handle.net/2263/43671.
Повний текст джерелаDissertation (LLM)--University of Pretoria, 2014
gm2015
Centre for Human Rights
LLM
Unrestricted
Gallagher, Anne. "Nouvelles techniques d'investigation de la latéralisation du langage à l'aide de l'électrophysiologie et de l'imagerie optique." Thèse, 2008. http://hdl.handle.net/1866/6379.
Повний текст джерела