Relevant bibliographies by topics / Acoustic analysis

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Acoustic analysis'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 July 2024

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Journal articles on the topic "Acoustic analysis"

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okcu, selen. "Realism analysis of synthesized healthcare sound environments." Journal of the Acoustical Society of America 152, no. 4 (October 2022): A182. http://dx.doi.org/10.1121/10.0015965.

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The acoustic qualities of healthcare sound environments can have significant influences on care providers’ ability to conduct critical sound tasks. Healthcare professionals constantly listen to the aural cues (e.g., alarms) and make critical decisions based on them. This study aims to assess the reliability of an open-source acoustical simulation tool in rendering healthcare providers’ auditory experience to enable the development of effective healthcare sound environments. The Pachyderm is developed as an open-source acoustical modeling and simulation plug-in for the Rhinoceros 3D-modeling platform commonly used by designers. The plug-in can compute various room acoustics metrics and generate auralizations by convolving anechoic recordings with the predicted acoustic signature of the architectural settings. While reliable predicted acoustic metrics are critical for iterative room-acoustics design studies, high fidelity auralizations can enable acoustic evaluations mainly based on critical listening and encourage collaboration between acoustical consultants, care providers and designers. The study introduces the findings of acoustic assessments including simulations and field measurements conducted in a new 14-bed adult medical-surgical inpatient unit at Milton S. Hershey Medical Center. The effectiveness is evaluated based on the deviation between the predicted and measured objective measures, and perceived differences between the auralizations and audio recordings assessed via listening tests.
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Masih, Dawa A. A., Nawzad K. Jalal, Manar N. A. Mohammed, and Sulaiman A. Mustafa. "The Assessment of Acoustical Characteristics for Recent Mosque Buildings in Erbil City of Iraq." ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 9, no. 1 (March 1, 2021): 51–66. http://dx.doi.org/10.14500/aro.10784.

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The study of mosque acoustics, concerning acoustical features, sound quality for speech intelligibility, and additional practical acoustic criteria, is commonly overlooked. Acoustic quality is vital to the fundamental use of mosques, in terms of contributing toward prayers and worshippers’ appreciation. This paper undertakes a comparative analysis of the acoustic quality level and the acoustical characteristics for two modern mosque buildings constructed in Erbil city. This work investigates and examines the acoustical quality and performance of these two mosques and their prayer halls through room simulation using ODEON Room Acoustics Software, to assess the degree of speech intelligibility according to acoustic criteria relative to the spatial requirements and design guidelines. The sound pressure level and other room-acoustic indicators, such as reverberation time (T30), early decay time, and speech transmission index, are tested. The outcomes demonstrate the quality of acoustics in the investigated mosques during semi-occupied and fully-occupied circumstances. The results specify that the sound quality within the both mosques is displeasing as the loudspeakers were off.
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Autio, Hanna, Mathias Barbagallo, Carolina Ask, Delphine Bard Hagberg, Eva Lindqvist Sandgren, and Karin Strinnholm Lagergren. "Historically Based Room Acoustic Analysis and Auralization of a Church in the 1470s." Applied Sciences 11, no. 4 (February 10, 2021): 1586. http://dx.doi.org/10.3390/app11041586.

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Worship space acoustics have been established as an important part of a nation’s cultural heritage and area of acoustic research, but more research is needed regarding the region of northern Europe. This paper describes the historical acoustics of an important abbey church in Sweden in the 1470s. A digital historical reconstruction is developed. Liturgical material specific to this location is recorded and auralized within the digital reconstruction, and a room acoustic analysis is performed. The analysis is guided by liturgical practices in the church and the monastic order connected to it. It is found that the historical sound field in the church is characterized by the existence of two distinct acoustical subspaces within it, each corresponding to a location dedicated to the daily services of the monastical congregations. The subspaces show significantly better acoustic conditions for liturgical activities compared to the nave, which is very reverberant under the conditions of daily services. Acoustic transmission from the two subspaces is limited, indicating that the monastic congregations were visually and acoustically separated from the visitors in the nave and each other.
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Santika, Beta Bayu, Haram Lee, Yunjin Lee, and Jin Yong Jeon. "Psychophysiological responses to changes in the acoustic design of concert halls." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 1 (November 30, 2023): 7154–59. http://dx.doi.org/10.3397/in_2023_1072.

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This study examined the psychophysiological responses of listeners to changes in the acoustic environment design of a concert hall. The research focused on both general audiences and experts in order to analyze the design of the acoustic environment based on their psychological and physiological aspects. The study involved the measurement of architectural acoustics of the hall and sound source produced through auralization based on the impulse responses collected earlier and the acoustical parameters gathered for the analysis. Changes were implemented through a refurbishment condition by the alterations to finishing materials. The objective sound environment improvement was evaluated by analyzing the electroencephalogram response in relation to the highly evaluated acoustic environment of the hall and the sound condition from the existing acoustic environment. The study found significant changes in the area related to emotion, preference for the acoustic environment, fatigue through the HRV parameter, and EEG. The results confirmed that psychophysiological responses to changes in the acoustical design provide an objective evidence of better concert hall acoustics.
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McCullah-Boozer, Megan R., Brooke M. Hinds, Logan T. Mathews, Mark C. Anderson, Michael Bassett, Lucas K. Hall, and Kent L. Gee. "A comparative analysis of rocket noise recordings from wildlife acoustic monitoring devices." Journal of the Acoustical Society of America 153, no. 3_supplement (March 1, 2023): A72. http://dx.doi.org/10.1121/10.0018204.

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Remote acoustic recorders are used in wildlife passive acoustical monitoring (PAM) and species identification. Such devices are designed to be relatively low-cost, user-friendly, weather-robust, and operate for extended periods with low maintenance. Usually, the precision of these devices is limited because most applications do not require high-fidelity measurements for typical wildlife PAM applications. However, the relatively low cost and flexibility of deployment beg the question if they can accurately record other noise sources, such as rocket launches. Such a situation calls for an evaluation of accuracy and a complete understanding of their capabilities and limitations. As such documentation is limited, this study seeks to characterize the acoustic performance of two commercially available wildlife acoustic monitoring devices: the Wildlife Acoustics SM-4 and the Cornell Ornithology Laboratory SwiftOne. We present acoustical results from a laboratory experiment and a field measurement of an orbital rocket launch. Comparisons to industry standard devices are made in the time and frequency domains and show the spectral characteristics of these devices. Recommendations are made regarding the use of these devices based on their performance.
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Kaselouris, Evaggelos, Chrysoula Alexandraki, Yannis Orphanos, Makis Bakarezos, Michael Tatarakis, Nektarios A. Papadogiannis, and Vasilis Dimitriou. "Acoustic analysis of impact sound on vibrating circular membranes." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (August 1, 2021): 3378–85. http://dx.doi.org/10.3397/in-2021-2389.

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A finite element method (FEM) - boundary element method (BEM) model is developed to compute the sound generated by of a force acting on a circular membrane (drumhead). A vibro-acoustic analysis that combines modal FEM analysis, a FEM steady state dynamic analysis (SSD), considering harmonic loading and boundary element acoustics, is performed. The drumhead vibrates due to the force impact and the sound is emitted in the air. The vibration of structural response is initially computed, and the obtained results are set to be the boundary conditions of the acoustic analysis in the vibro-acoustic simulation. The radiated sound can be computed at any point of the solution domain. Various materials used by drumhead manufacturers are tested and a parametric analysis focusing on the mesh density of the models is presented. The impact sound and the acoustical characteristics of the simulated test cases are evaluated. The Rayleigh method is also applied to the acoustic simulations and is further compared to the BEM simulation results. The outcomes of this study may be further used as reverse engineering inputs, to machine learning models for the estimation of the physical and mechanical parameters of drumheads from audio signals.
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Wang, Guo, Yibin Wang, Yongzhi Min, and Wu Lei. "Blind Source Separation of Transformer Acoustic Signal Based on Sparse Component Analysis." Energies 15, no. 16 (August 19, 2022): 6017. http://dx.doi.org/10.3390/en15166017.

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In the acoustics-based power transformer fault diagnosis, a transformer acoustic signal collected by an acoustic sensor is generally mixed with a large number of interference signals. In order to separate transformer acoustic signals from mixed acoustic signals obtained by a small number of sensors, a blind source separation (BSS) method of transformer acoustic signal based on sparse component analysis (SCA) is proposed in this paper. Firstly, the mixed acoustic signals are transformed from time domain to time–frequency (TF) domain, and single source points (SSPs) in the TF plane are extracted by identifying the phase angle differences of the TF points. Then, the mixing matrix is estimated by clustering SSPs with a density clustering algorithm. Finally, the transformer acoustic signal is separated from the mixed acoustic signals based on the compressed sensing theory. The results of the simulation and experiment show that the proposed method can separate the transformer acoustic signal from the mixed acoustic signals in the case of underdetermination. Compared with the existing denoising methods of the transformer acoustic signal, the denoising results of the proposed method have less error and distortion. It will provide important data support for the acoustics-based power transformer fault diagnosis.
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Duran, Sebastian, Martyn Chambers, and Ioannis Kanellopoulos. "An Archaeoacoustics Analysis of Cistercian Architecture: The Case of the Beaulieu Abbey." Acoustics 3, no. 2 (March 26, 2021): 252–69. http://dx.doi.org/10.3390/acoustics3020018.

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The Cistercian order is of acoustic interest because previous research has hypothesized that Cistercian architectural structures were designed for longer reverberation times in order to reinforce Gregorian chants. The presented study focused on an archaeoacacoustics analysis of the Cistercian Beaulieu Abbey (Hampshire, England, UK), using Geometrical Acoustics (GA) to recreate and investigate the acoustical properties of the original structure. To construct an acoustic model of the Abbey, the building’s dimensions and layout were retrieved from published archaeology research and comparison with equivalent structures. Absorption and scattering coefficients were assigned to emulate the original room surface materials’ acoustics properties. CATT-Acoustics was then used to perform the acoustics analysis of the simplified building structure. Shorter reverberation time (RTs) was generally observed at higher frequencies for all the simulated scenarios. Low speech intelligibility index (STI) and speech clarity (C50) values were observed across Abbey’s nave section. Despite limitations given by the impossibility to calibrate the model according to in situ measurements conducted in the original structure, the simulated acoustics performance suggested how the Abbey could have been designed to promote sacral music and chants, rather than preserve high speech intelligibility.
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Zhang, Guo Jun, and Yun Ju Yan. "Applications of Statistical Energy Analysis in Influencing Factors Analysis of Aircraft Vibro-Acoustic Response Characteristics." Applied Mechanics and Materials 300-301 (February 2013): 810–13. http://dx.doi.org/10.4028/www.scientific.net/amm.300-301.810.

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The SEA model of hypersonic aircraft is established based on statistical energy analysis (SEA) theory. Three parameters of the SEA model are established by the theory and experiential formula. According to damping loss factors of model subsystem and acoustic absorptivity of cavity, sensitivity analysis of vibro-acoustic response is discussed. The effect that division way of plate subsystem and material structure cause to vibro-acoustic response is analyzed. The analysis results show that the material structure, damping loss factors and material type have the great effect on the characteristics of vibro-acoustic response. The division way of plate subsystem can affect computational accuracy greatly. The influencing factors should be synthetically considered in the design of acoustics structure.
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Marunin, Mikhail V., and Nataliya V. Polikarpova. "Polarization of Acoustic Waves in Two-Dimensional Phononic Crystals Based on Fused Silica." Materials 15, no. 23 (November 23, 2022): 8315. http://dx.doi.org/10.3390/ma15238315.

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The two-dimensional square-lattice phononic crystal is one of the recently proposed acoustic metamaterials. Strong anisotropic propagation of elastic waves makes the material promising for various potential applications in acoustics and acousto-optics. This paper presents a study of the propagation of elastic waves in two-dimensional phononic crystals based on fused silica. The band structures of a phononic crystal are obtained by solving the wave equation in its variational form by the finite element method. The main phononic crystal acoustic characteristics that are of practical interest in acousto-optics are calculated based on the analysis of the dispersion relations. It is shown that the choice of the phononic crystal geometry makes it possible to control the distributions of both the inverse phase velocities and the energy walk-off angles of acoustic modes. The calculations of the acoustic modes’ polarization are in a particular focus. It is demonstrated that under certain conditions, there are exactly three acoustic modes propagating in a phononic crystal, the averaged polarization vectors of which are mutually orthogonal for any directions of the acoustic wave’s propagation. It is argued that the acoustic properties of phononic crystals meet the requirements of acousto-optics.
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Dissertations / Theses on the topic "Acoustic analysis"

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Anderson, Shaun David. "Time-frequency methods for the analysis of multistatic acoustic scattering of elastic shells in shallow water." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39640.

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The development of low-frequency sonar systems, using for instance a network of autonomous systems in unmanned vehicles, provides a practical means for bistatic measurements (i.e. when the source and receiver are widely separated) allowing for multiple viewpoints of the target of interest. Time-frequency analysis, in particular Wigner-Ville analysis, takes advantage of the evolution time dependent aspect of the echo spectrum to differentiate a man-made target (e.g. elastic spherical shell) from a natural one of the similar shape (e.g. solid). A key energetic feature of fluid loaded and thin spherical shell is the coincidence pattern, or mid-frequency enhancement echoes (MFE), that result from antisymmetric Lamb-waves propagating around the circumference of the shell. This thesis investigates numerically the bistatic variations of the MFE (with respect to the monostatic configuration) using the Wigner-Ville analysis. The observed time-frequency shifts of the MFE are modeled using a previously derived quantitative ray theory for spherical shell's scattering. Additionally, the advantage of an optimal array beamformer, based on joint time delays and frequency shifts (over a conventional time-delay beamformer) is illustrated for enhancing the detection of the MFE recorded across a bistatic receiver array.
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Bienvenu, Kirk Jr. "Underwater Acoustic Signal Analysis Toolkit." ScholarWorks@UNO, 2017. https://scholarworks.uno.edu/td/2398.

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This project started early in the summer of 2016 when it became evident there was a need for an effective and efficient signal analysis toolkit for the Littoral Acoustic Demonstration Center Gulf Ecological Monitoring and Modeling (LADC-GEMM) Research Consortium. LADC-GEMM collected underwater acoustic data in the northern Gulf of Mexico during the summer of 2015 using Environmental Acoustic Recording Systems (EARS) buoys. Much of the visualization of data was handled through short scripts and executed through terminal commands, each time requiring the data to be loaded into memory and parameters to be fed through arguments. The vision was to develop a graphical user interface (GUI) that would increase the productivity of manual signal analysis. It has been expanded to make several calculations autonomously for cataloging and meta data storage of whale clicks. Over the last year and a half, a working prototype has been developed with MathWorks matrix laboratory (MATLAB), an integrated development environment (IDE). The prototype is now very modular and can accept new tools relatively quickly when development is completed. The program has been named Banshee, as the mythical creatures are known to “wail”. This paper outlines the functionality of the GUI, explains the benefits of frequency analysis, the physical models that facilitate these analytics, and the mathematics performed to achieve these models.
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Ambróz, Richard. "Analysis of Powertrain Acoustic Properties." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-234137.

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Dizertačná práca rieši problematiku analýzy akustických vlastností pohonných jednotiek. V úvodnej časti je teoretický rozbor fyzikálnych princípov vibrácií a hluku a prehľad súčasného stavu riešenia problematiky v oblasti návrhu pohonných jednotiek. Vlastná časť práce popisuje konštrukčný návrh elektrodynamického budiča vibrácií, návrh hodnotenia výsledkov merania a taktiež spôsob spracovania výsledkov. Akustické vlastnosti sú hodnotené pomocou normálových rýchlostí kmitania povrchu. V závere práce sú prezentované ukážky využitia metódy v praktických príkladoch spojených s návrhom pohonnej jednotky. Celé riešenie predstavuje ucelený spôsob analýzy vhodný pre rýchle hodnotenie vplyvu konštrukčných úprav na akustické vlastnosti.
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Davies, Jonathan James. "Underwater acoustic communications." Thesis, University of Birmingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289679.

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Jenal, Ruztamreen Bin. "Fatigue crack detection using nonlinear acoustic : analysis of vibro-acoustic modulations." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531115.

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Locey, Lance Lester. "Analysis and Comparison of Three Acoustic Energy Density Probes." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd561.pdf.

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Sikström, Johannes. "Vibro-acoustic analysis of a satellite reflector antenna using FEM." Thesis, Umeå universitet, Institutionen för fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-39875.

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The acoustic environment generated during launch is the most demanding structural load case for large, lightweight satellite reflector antennas. The reflector is exposed to extremely high sound pressure levels originating from the structural excitation of the rocket engines and exterior air flow turbulence. This thesis aims to predict the structural responses in the reflector due to the acoustic pressure load with a model based on Finite Element Modelling (FEM). The FE-model is validated against a previously performed Boundary Element Method (BEM) analysis. An approach called Split Loading together with a combination of BEM and FEM will be utilized to handle the surrounding air mass and the applied sound pressures. The idea of Split Loading is to divide the structure into several patches and apply a unit pressure load to each patch separately. In the last step the unit pressure is scaled and correlated by a power spectral density calculated from the acoustic pressures. Split Loading will be implemented in software packages MSC.NASTRAN/PATRAN. The model developed in this thesis handles both the added mass of the surrounding air and the sound pressure applied to the reflector. The model can qualitatively well reproduce the results of the BEM-analysis and the test data. However, the model tends to overestimate responses at low frequencies and underestimate them at high frequencies. The end results is that the model becomes too conservative at low frequencies to be used without further development.
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Pontén, Emeli. "Acoustic Design in Urban Development : analysis of urban soundscapes and acoustic ecology research in New York City." Thesis, Högskolan Dalarna, Ljud- och musikproduktion, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4836.

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The world is urbanizing rapidly with more than half of the global population now living in cities. Improving urban environments for the well-being of the increasing number of urban citizens is becoming one of the most important challenges of the 21st century. Even though it is common that city planners have visions of a ’good urban milieu’, those visions are concerning visual aesthetics or practical matters. The qualitative perspective of sound, such as sonic diversity and acoustic ecology are neglected aspects in architectural design. Urban planners and politicians are therefore largely unaware of the importance of sounds for the intrinsic quality of a place. Whenever environmental acoustics is on the agenda, the topic is noise abatement or noise legislation – a quantitative attenuation of sounds. Some architects may involve acoustical aspects in their work but sound design or acoustic design has yet to develop to a distinct discipline and be incorporated in urban planning.My aim was to investigate to what extent the urban soundscape is likely to improve if modern architectural techniques merge with principles of acoustics. This is an important, yet unexplored, research area. My study explores and analyses the acoustical aspects in urban development and includes interviews with practitioners in the field of urban acoustics, situated in New York City. My conclusion is that to achieve a better understanding of the human living conditions in mega-cities, there is a need to include sonic components into the holistic sense of urban development.
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Brock, James L. "Acoustic classification using independent component analysis /." Link to online version, 2006. https://ritdml.rit.edu/dspace/handle/1850/2067.

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Teki, S. "Cognitive analysis of complex acoustic scenes." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1413017/.

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Natural auditory scenes consist of a rich variety of temporally overlapping sounds that originate from multiple sources and locations and are characterized by distinct acoustic features. It is an important biological task to analyze such complex scenes and extract sounds of interest. The thesis addresses this question, also known as the “cocktail party problem” by developing an approach based on analysis of a novel stochastic signal contrary to deterministic narrowband signals used in previous work. This low-level signal, known as the Stochastic Figure-Ground (SFG) stimulus captures the spectrotemporal complexity of natural sound scenes and enables parametric control of stimulus features. In a series of experiments based on this stimulus, I have investigated specific behavioural and neural correlates of human auditory figure-ground segregation. This thesis is presented in seven sections. Chapter 1 reviews key aspects of auditory processing and existing models of auditory segregation. Chapter 2 presents the principles of the techniques used including psychophysics, modeling, functional Magnetic Resonance Imaging (fMRI) and Magnetoencephalography (MEG). Experimental work is presented in the following chapters and covers figure-ground segregation behaviour (Chapter 3), modeling of the SFG stimulus based on a temporal coherence model of auditory perceptual organization (Chapter 4), analysis of brain activity related to detection of salient targets in the SFG stimulus using fMRI (Chapter 5), and MEG respectively (Chapter 6). Finally, Chapter 7 concludes with a general discussion of the results and future directions for research. Overall, this body of work emphasizes the use of stochastic signals for auditory scene analysis and demonstrates an automatic, highly robust segregation mechanism in the auditory system that is sensitive to temporal correlations across frequency channels.
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Books on the topic "Acoustic analysis"

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Burdic, William S. Underwater acoustic system analysis. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1991.

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Kent, Raymond D. The acoustic analysis of speech. San Diego: Singular, 1996.

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1940-, Read Charles, ed. The acoustic analysis of speech. San Diego, Calif: Singular Pub. Group, 1992.

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Kent, Raymond D. The acoustic analysis of speech. London: Whurr, 1992.

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1940-, Read Charles, ed. The acoustic analysis of speech. 2nd ed. Australia: Singular/Thomson Learning, 2002.

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Finite element analysis of acoustic scattering. New York: Springer, 1998.

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Ihlenburg, Frank, ed. Finite Element Analysis of Acoustic Scattering. New York: Springer-Verlag, 1998. http://dx.doi.org/10.1007/b98828.

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Hanson, David R. Rock stability analysis using acoustic spectroscopy. Pittsburgh, Pa. (4800 Forbes Ave., Pittsburgh 15213): U.S. Dept. of the Interior, Bureau of Mines, 1985.

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Philip, Lieberman, Pickett Emily, United States. Office of Aviation Medicine, and Civil Aeromedical Institute, eds. An acoustic analysis of ATC communication. Washington, D.C: U.S. Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine, 1998.

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L, Chen C. Analysis of numerical approaches for acoustic equations. Washington, D. C: American Institute of Aeronautics and Astronautics, 1993.

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Book chapters on the topic "Acoustic analysis"

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Huang, Zhengfei, Frank Lobbezoo, Ghizlane Aarab, Nico de Vries, and Antonius A. J. Hilgevoord. "Acoustic Analysis." In The Role of Epiglottis in Obstructive Sleep Apnea, 147–57. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34992-8_10.

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Yang, Z. "Acoustic Analysis." In Multiphysics Modeling with Application to Biomedical Engineering, 29–37. Boca Raton : CRC Press, 2021.: CRC Press, 2020. http://dx.doi.org/10.1201/9780367510800-5.

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Sas, P., and F. Augusztinovicz. "Acoustic Modal Analysis." In Modal Analysis and Testing, 487–506. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4503-9_23.

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Cochelin, Bruno. "Acoustic mitigation." In Modal Analysis of Nonlinear Mechanical Systems, 325–40. Vienna: Springer Vienna, 2014. http://dx.doi.org/10.1007/978-3-7091-1791-0_8.

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Hozumi, Naohiro. "Acoustic Microscopy." In Compendium of Surface and Interface Analysis, 1–8. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6156-1_1.

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Tsujino, Soichiro, and Takashi Tomizaki. "Applications of Acoustic Levitation in Chemical Analysis and Biochemistry." In Acoustic Levitation, 151–79. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-32-9065-5_9.

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Manzetti, Maria Cristina. "Combining 3D Visibility Analysis and Virtual Acoustics Analysis for the Architectural Study of Ancient Theatres." In Capturing the Senses, 105–25. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-23133-9_6.

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AbstractThe research presented in this chapter demonstrates the fruitful combination of interdisciplinary and multisensory approaches in the field of archaeology. Several disciplines, such as architecture, archaeology, computer science, acoustics and geophysics, cooperated to obtain new data and to elaborate new hypotheses about the original structure of the Roman theatres in Crete. All the information available about these monuments (such as ancient drawings, descriptions of travellers, plans, archaeological reports, aerial pictures and geophysical anomalies) were the basis to hypothesise their original architecture, together with the support of comparisons with well-preserved Roman theatres and with Vitruvius’ proportions. These reconstructive hypotheses were visualised by 3D models and their accuracy was verified through a new methodology that sees the application of 3D visibility analysis and virtual acoustics analysis. The 3D visibility analysis was useful to verify the level of visibility of the stage by the spectators in the seating area. The virtual acoustics analysis was used to obtain quantitative values of acoustic parameters helpful to judge the acoustic quality of the 3D reconstructions. The auralisation was also carried out to attain a subjective parameter about acoustic perception. In particular, by 3D visibility analysis and virtual acoustics analysis, it is possible to verify the reliability and the accuracy of hypothetical reconstructions, assuming that every spectator was able to watch the stage and able to listen and to comprehend any performance. The case study presented here is the theatre at the acropolis of Gortyna. Two different 3D reconstructions were tested and it has resulted that the 3D model of the theatre which maintains some Greek characteristics is the most reliable one. This approach made it possible to obtain data that could not be obtained otherwise, as well as raising new questions and opening up new perspectives.
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Beeman, K. "Digital Signal Analysis, Editing, and Synthesis." In Animal Acoustic Communication, 59–103. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-76220-8_3.

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Coates, Rodney F. W. "Characteristics and Analysis of Sonar Waveforms." In Underwater Acoustic Systems, 32–51. London: Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-20508-0_3.

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Miles, Ronald N. "Analysis of Acoustic Signals." In Mechanical Engineering Series, 1–34. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22676-3_1.

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Conference papers on the topic "Acoustic analysis"

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O¨g˘u¨c¸, Mete. "Historical Progression of Mathematizing Vibro-Acoustic Problems." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24502.

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Some of celebrated geometers whom are acknowledged as to be the pioneers of scientific revolution have worked on acoustics and modeling of vibration of structures. They made great contributions on both the physical understanding and the mathematical modeling of these phenomena. The historical stream of physical understanding of sound propagation, foundations of the mathematical background of vibration mechanics and the instruments that reinforced the conceived theory of acoustics led to the advanced concept of modern vibro-acoustic engineering. A historical investigation is made on the early engineering approaches on vibro-acoustic engineering problems to comprehend the evolution of acoustic engineering and its place in modern era.
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Gennish, R., J. Jiang, A. Albarbar, G. Harris, F. Gu, and A. Ball. "Diesel Engine Combustion Monitoring Based on Acoustic Measurement of Exhaust Systems." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95648.

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This paper presents a novel monitoring approach to diesel engine combustion based on acoustic measurement of exhaust systems. It investigates the acoustic characteristics from the measurements of individual sensors and their combination based on a linear one port acoustic source model. It has been found that the strength, in terms of pressure, of the acoustic source gives a more accurate representation of engine acoustics because it is obtained by minimizing the reflection effects in the exhaust system. Therefore, the pressure waveform produces more accurate monitoring results for abnormal combustions such as those caused by faults in engine fuel injection systems.
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Shiohata, K., K. Nemoto, and T. Iwatsubo. "A Method for Large-Scale Structural-Acoustic Analysis." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-3834.

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Abstract This paper presents a method for large-scale structural-acoustic analysis in which a cavity is divided into several acoustic fields, and a transfer-function method is used to solve the acoustics efficiently. By solving simultaneous equations using the Gaussian elimination method sequentially for each pair of neighboring acoustic sub-fields, the calculation time and memory requirements are reduced. Calculation accuracy is the same as when calculating the entire acoustic field without first dividing it. We created two kinds of closed acoustic models (cavity models) and carried out numerical simulations. The results showed that the proposed method is effective for large-scale structural-acoustic analysis.
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Tetambe, Ravi P., and C. Rajakumar. "Estimation of Error in Acoustic Analysis." In ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium collocated with the ASME 1994 Design Technical Conferences. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/cie1994-0443.

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Abstract Application of error estimation in acoustical analysis is shown. Based on the Zienkiewicz-Zhu1 error estimator for stress analysis, a procedure for predicting the error in pressure distribution computed from a frequency domain analysis of acoustic cavities is outlined. Examples are presented to illustrate the usefulness of the error estimator in adaptively meshing the acoustic domain to minimize the error at different excitation frequencies.
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Armenise, Mario N., Vittorio M. N. Passaro, and Fabrizio Impagnatiello. "Acoustic-mode analysis of multilayered structures." In Integrated Photonics Research. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/ipr.1990.wc7.

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The acousto-optic transducer (AOT) is a fundamental component of a number of hybrid circuits for optical computing and optical signal processing. The grating created by the surface acoustic wave (SAW) in an AOT generates Bragg diffraction of an incident optical wave, and the intensity of the diffracted wave is proportional to the product of the incident light intensity and the power of the acoustic wave. This fundamental property of AOTs is widely used for spectral analysis and correlation of wide-band signals. Therefore, the theoretical analysis of an AOT involves both the optical and acoustic modal investigation. In most applications the role of the optical mode analysis is predominant over the acoustic mode analysis because the SAW propagation speed does not depend on the acoustic frequency, as occurs in the LiNbO3 devices.
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Law, Victor J., Feidhlim T. O’Neill, Denis P. Dowling, Theodore E. Simos, George Psihoyios, Ch Tsitouras, and Zacharias Anastassi. "Atmospheric Pressure Plasma Acoustic Moment Analysis." In NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2011: International Conference on Numerical Analysis and Applied Mathematics. AIP, 2011. http://dx.doi.org/10.1063/1.3637773.

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O’Regan, Stephen D. "External Acoustic Mode Analysis." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0407.

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Abstract This paper presents first an acoustic mode theory for continuous surfaces. The necessary step of basis function normalization is made and is then introduced into the discrete theory to make the two theories consistent. Significant reductions in degrees-of-freedom are illustrated using an example of a cylinder with endcaps as the source surface. The analysis shows that the acoustic modes and radiation efficiencies vary with frequency and, notably, field geometry. A procedure is then described for developing acoustic modal filters to construct a cost function for active sound control.
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Thorpe, W., M. Kurver, G. King, and C. Salome. "Acoustic analysis of cough." In ANZIIS 2001. Proceedings of the Seventh Australian and New Zealand Intelligent Information Systems Conference. IEEE, 2001. http://dx.doi.org/10.1109/anziis.2001.974110.

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Bickley, Corine A., and Sheri Hunnicutt. "Acoustic analysis of laughter." In 2nd International Conference on Spoken Language Processing (ICSLP 1992). ISCA: ISCA, 1992. http://dx.doi.org/10.21437/icslp.1992-284.

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Wang, Xiaolu. "Applications of acousto-optic tunable filters in environmental sensors." In Laser Applications to Chemical and Environmental Analysis. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/lacea.1996.lfb.1.

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Acousto-optic tunable filters (AOTFs) are electronically addressable optical filters that provide rapid, random wavelength access, broad spectral coverage and moderately high spectral resolution. They are based on acousto-optic diffraction of light in an anisotropic medium. A piezoelectric transducer bonded to a birefringent crystal generates a traveling acoustic wave through the crystal, whenever it is excited by an applied RF signal. This acoustic wave establishes a periodic modulation of the index of refraction and generates a moving grating which allows diffraction of the incident light beam. For a given acousto-optic frequency, only a small wavelength band will satisfy the phase-matching condition and will be cumulatively diffracted. Varying the RF frequency has the resulting effect of changing the center of the optical bandpass. In addition, applying multiple RF frequencies simultaneously, result in multiple wavelength bandpasses.
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Reports on the topic "Acoustic analysis"

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Bergès, B. J. P., and S. Sakinan. Analysis of ancillary acoustic data during acoustic trawl surveys. IJmuiden: Stichting Wageningen Research, Centre for Fisheries Research (CVO), 2020. http://dx.doi.org/10.18174/522177.

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Knobles, David P. Shallow Water Acoustic Experiment Analysis. Fort Belvoir, VA: Defense Technical Information Center, September 2009. http://dx.doi.org/10.21236/ada531972.

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Knobles, David P. Shallow Water Acoustic Experiment Analysis. Fort Belvoir, VA: Defense Technical Information Center, September 2008. http://dx.doi.org/10.21236/ada533055.

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Knobles, David P. Shallow Water Acoustic Experiment Analysis. Fort Belvoir, VA: Defense Technical Information Center, September 2007. http://dx.doi.org/10.21236/ada541159.

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Domen, John K. Determination of Complex Acoustic Impedance and Methods of Acoustic Spectral Analysis. Fort Belvoir, VA: Defense Technical Information Center, February 1998. http://dx.doi.org/10.21236/ada339252.

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Muhlestein, Michael, and Carl Hart. Geometric-acoustics analysis of singly scattered, nonlinearly evolving waves by circular cylinders. Engineer Research and Development Center (U.S.), October 2020. http://dx.doi.org/10.21079/11681/38521.

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Geometric acoustics, or acoustic ray theory, is used to analyze the scattering of high-amplitude acoustic waves incident upon rigid circular cylinders. Theoretical predictions of the nonlinear evolution of the scattered wave field are provided, as well as measures of the importance of accounting for nonlinearity. An analysis of scattering by many cylinders is also provided, though the effects of multiple scattering are not considered. Provided the characteristic nonlinear distortion length is much larger than a cylinder radius, the nonlinear evolution of the incident wave is shown to be of much greater importance to the overall evolution than the nonlinear evolution of the individual scattered waves.
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Gur, Ilan. Real-Time Acoustic Analysis of Batteries. Office of Scientific and Technical Information (OSTI), March 2020. http://dx.doi.org/10.2172/1607788.

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Peterson, Scott, and Paul Schomer. Acoustic Analysis of Small Arms Fire. Fort Belvoir, VA: Defense Technical Information Center, January 1994. http://dx.doi.org/10.21236/ada278306.

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Dahl, Peter H., and William J. Plant. Analysis of Simultaneous Acoustic/Microwave Data. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada626255.

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Yoerger, E. J., M. Wilson, and S. T. McDaniel. Surface Forward-Scattered Acoustic Measurements and Analysis. Fort Belvoir, VA: Defense Technical Information Center, June 1993. http://dx.doi.org/10.21236/ada276998.

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