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Acoustic fields; Algorithms; Bandwidth; Bit error rate; Estimation; Frequency estimation; Acoustic communications; Acoustic path; Acoustic response; Acoustic response function; Acoustic systems; Channel bandwidth; Channel dynamics; Combining method; Doppler; Estimation and compensation; Gaussian Mixture Model; Gaussian mixtures; Gaussian model; High frequency; Maximal path; Nova Scotia; Orthogonal signaling; Orthogonal signals; Per-symbol; Propagation media; Receiver algorithms; Recursive least square (RLS); Response functions; Shallow water acoustics; Signal duration; Single element; Temporal variability

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Acoustic impedance; Algorithms; Mathematical models; Optimization; Porosity; Porous materials; Viscous flow; Champoux-Allard model; Inverse characterization methods; Particular absorbing materials; Thermal characteristics

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Acoustic noise; Acoustic wave transmission; Algorithms; Estimation; Ambient noise; Bayesian frameworks; Bayesian inversion; Continuous time; Conventional beamforming; Geoacoustic inversion; Geoacoustic parameters; Grazing angles; Markov chain Monte Carlo; Model parameterization; Monte carlo algorithms; Parameterizations; Posterior probability; Shallow waters

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Aproximadamente 15 registro(s) hasta el momento: (knowledge)

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Recurso libre

Sparse broadband acoustic response estimation via a gaussian mixture model with application to m-ary orthogonal signaling
Gendron, Paul J.; Maritime Surveillance Division, Code 56490 Space and Naval Warfare Systems Center Pacific, San Diego, CA, United States

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	Shallow water acoustic response functions at high frequencies and large bandwidths exhibit spatio- temporal variability that depends greatly on the propagation media's volume and boundary conditions as well as system source-receiver motion. For this reason practical acoustic systems invariably must…
Fecha:	2012-03-01
Recurso:	Canadian Acoustics

Recurso libre

Automatic volume settings for environment sensitive hearing aids
Rahal, Rana; School of Information Technology and Engineering, Univ. of Ottawa, 800 King Edward Avenue, Ottawa, KIN 6N5, Canada - Gueaieb, Wail; School of Information Technology and Engineering, Univ. of Ottawa, 800 King Edward Avenue, Ottawa, KIN 6N5, Canada - Giguére, Christian; School of Information Technology and Engineering, Univ. of Ottawa, 800 King Edward Avenue, Ottawa, KIN 6N5, Canada - Othman, Hisham; School of Information Technology and Engineering, Univ. of Ottawa, 800 King Edward Avenue, Ottawa, KIN 6N5, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	A study was conducted to demonstrate the automatic adjustment of the hearing aid control settings to minimize the need for manual user interventions. The proposed system was based on computational intelligence tools, such as artificial neural networks and neurofuzzy systems.…
Fecha:	2009-09-01
Recurso:	Canadian Acoustics

Recurso libre

Changes to iso standards and their effects on machinery noise declarations
Keith, Stephen E.; Healthy Environments and Consumer Safety Branch, Environmental and Radiation Health Sciences Directorate, Consumer and Clinical Radiation Protection Bureau, 775 Brookfield Rd. 6301B, Ottawa, ON KlA lCl, Canada - BIy, Stephen H. P.; Healthy Environments and Consumer Safety Branch, Environmental and Radiation Health Sciences Directorate, Consumer and Clinical Radiation Protection Bureau, 775 Brookfield Rd. 6301B, Ottawa, ON KlA lCl, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	The article describes recent improvements in the basic ISO standards for measurement of machinery noise and how they can affect the ease of determination, or the reliability, of machinery noise declarations. Improvements to the ISO standards could be incorporated into…
Fecha:	2011-09-01
Recurso:	Canadian Acoustics

Recurso libre

Assessing the intrinsic relationship between facial motion and acoustics in patients with parkinson's disease
Ma, Luyao; Oral Dynamics Lab., Department of Speech-Language Pathology, University of Toronto, Toronto, Canada - Li, Huawei Colin; Oral Dynamics Lab., Department of Speech-Language Pathology, University of Toronto, Toronto, Canada - Amano-Kusumoto, Akiko; Oral Dynamics Lab., Department of Speech-Language Pathology, University of Toronto, Toronto, Canada - Wong, Willy; Institute of Biomaterials and Biomedical Engineering, University of Toronto - Van Lieshout, Pascal; Oral Dynamics Lab., Department of Speech-Language Pathology, University of Toronto, Toronto, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	A study was conducted to assess the relationship between facial motion and acoustics in patients suffering from Parkinson's Disease (PD). The study used 3D motion data with time-aligned acoustics acquired from the participants to conduct the investigations. It was assumed…
Fecha:	2009-09-01
Recurso:	Canadian Acoustics

Recurso libre

Architectural acoustics: Some historical developments and ongoing issues
Bradley, John S.; Institute for Research in Construction, National Research Council, Montreal Rd., Ottawa, K1A 0R6, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	This paper gives an overview of the history of the development of architectural acoustics and a sampling of the results of several more recent research studies. There are now standardised measures for assessing room acoustics character and there are criteria…
Fecha:	2009-09-01
Recurso:	Canadian Acoustics

Recurso libre

Hearing protectors - Calculations of the noise level at the protected ear
Behar, Alberto; IBBME, University of Toronto, Roseburgh Building, Toronto, Ont. M5S 3G9, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	The risk of noise induced hearing loss, when wearing a hearing protector, can only be calculated with the knowledge of the noise level at the protected ear. Several methods are available for calculating this level, from the hearing protectors' attenuation…
Fecha:	2004-03-01
Recurso:	Canadian Acoustics

Recurso libre

Inverse acoustical characterization of open cell porous media using impedance tube measurements
Atalla, Youssef; Grp. Acoust. l'Univ. de Sherbrooke, Dept. Génie Mécanique, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada - Panneton, Raymond; Grp. Acoust. l'Univ. de Sherbrooke, Dept. Génie Mécanique, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	Unlike porous models developed for particular absorbing materials and frequency ranges, the Johnson-Champoux-Allard model is a generalized model for sound propagation in porous materials over a wide range of frequencies. This model is nowadays used widely across the acoustic research…
Fecha:	2005-03-01
Recurso:	Canadian Acoustics

Recurso libre

A bayesian framework for geoacoustic inversion of wind-driven ambient noise in shallow water
Jorge, E. Quijano; School of Earth and Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada - Stan, E. Dosso; School of Earth and Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada - Dettmer, Jan; School of Earth and Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	Bayesian inversion is applied to estimate the joint posterior probability density (PPD) of geoacoustic parameters. The PPD is sampled by a reversible-jump Markov chain Monte Carlo (rjMCMC) algorithm, which uses an extended Metropolis-Hasting (MH) criterion that allows trans-D jumps between…
Fecha:	2012-09-01
Recurso:	Canadian Acoustics

Recurso libre

Review of legal suits involving hand-arm vibration
Jetzer, Thomas; Occupational Medicine Consultants, 6515 Barrie Road, Edina, MN 55359, United States

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	The characteristics of lawsuits involving hand-arm vibration (HAV), the medical issues involved, and the strategies of defense and plaintiff attorneys as noted in a particular occupational medicine practice, are outlined. The study finds that there is widespread lack of physician…
Fecha:	2011-06-01
Recurso:	Canadian Acoustics

Recurso libre

10.

Three-dimensional single-hydrophone tracking of a sperm whale demonstrated using workshop data from the bahamas
Tiemann, Christopher O.; Applied Research Laboratories, University of Texas at Austin, P.O. Box 8029, Austin, TX 78713

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	A passive acoustic localization method for tracking the movement of a clicking sperm whale in three-dimensions using data from just one hydrophone is demonstrated using data made available for the 3rd International Workshop on Detection and Classification of Marine Mammals.…
Fecha:	2008-03-01
Recurso:	Canadian Acoustics

Recurso libre

11.

A PC based measurement system for obtaining spatial information and objective room-acoustic indicators
Abdou, A.; Centre for Building Studies, Concordia Univ., Montreal, Que., Canada - Guy, R.W.; Centre for Building Studies, Concordia Univ., Montreal, Que., Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	Over the last twenty years, many subjectively relevant objective room-acoustics quantities or indicators for evaluating the acoustical quality of an enclosure have been introduced. Whilst indicators give new insight into the acoustical goodness of a receiver position, there is still…
Fecha:	1993-03-01
Recurso:	Canadian Acoustics

Recurso libre

12.

Robust 2D localization of low-frequency calls in shallow waters using modal propagation modelling
Gervaise, C.; E3I2, EA3876, GIS Europôle Mer, 2 Rue François Verny, 29200 Brest, France - Vallez, S.; E3I2, EA3876, GIS Europôle Mer, 2 Rue François Verny, 29200 Brest, France - Stephan, Y.; CMO/SHOM, 13 Rue Chatellier, 29200, Brest, France - Simard, Y.; Institut des Sciences de la Mer, Université du Québec à Rimouski, 310 allée des Ursulines, Rimouski, QC G5L 3A1, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	We propose a new method to localize low-frequency calls in 2D in shallow waters from a sparse array of hydrophones using modal propagation modelling. An analysis of modal propagation modelling of transients signals in shallow water environment shows that the…
Fecha:	2008-03-01
Recurso:	Canadian Acoustics

Recurso libre

13.

Objets sonores: une représentation bio-inspirée, hiérarchique, parcimonieuse à très grandes dimensions utilisable en reconnaissance, Objets sonores: une représentation bio-inspirée, hiérarchique, parcimonieuse à très grandes dimensions utilisable en reconnaissance
Brodeur, Simon - Rouat, Jean; Groupe de recherche en Neuroscience Computationelle et Traitement Intelligent des Signaux (NECOTIS) Département génie électrique et génie informatique, Université de Sherbrooke, Sherbrooke QC Canada J1K 2R1

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	The emphasis is put on the hierarchical structure, independence and sparseness aspects of auditory signalrepresentations in high-dimensional spaces, so as to define the components of auditory objects. The conceptof an auditory object and its neural representation is introduced. An illustrative…
Fecha:	2013-06-01
Recurso:	Canadian Acoustics

Recurso libre

14.

Statistical classification of odontocete clicks
Gillespie, Douglas; Sea Mammal Research Unit, Gatty Marine Laboratory, University of St. Andrews, Fife, KY16 8LB, United Kingdom - Caillat, Marjolaine; Sea Mammal Research Unit, Gatty Marine Laboratory, University of St. Andrews, Fife, KY16 8LB, United Kingdom

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	To the best of our knowledge, all odontocetes produce some kind of click like vocalisation, which is used primarily for echolocation but may also play a role in social communication. Characteristics of these echolocation pulses range from the broad band…
Fecha:	2008-03-01
Recurso:	Canadian Acoustics

Recurso libre

15.

Online teaching of acoustics to candidates for admission in audiology and speech-language pathology at the University of Ottawa, Enseignement en ligne de l'acoustique aux candidats à l'admission en audiologie et orthophonie à l'université d'Ottawa
Giguère, Christian; Programme D'Audiologie et D'Orthophonie, Université d'Ottawa, 451 chemin Smyth, Ottawa, ON K1H 8M5, Canada - Brown, Elizabeth Campbell; Centre du Cyber-Prrentissage, Université d'Ottawa, 136 rue Jean-Jacques Lussier, Ottawa, ON KIN 6N5, Canada - Dostie, Daniel; Centre du Cyber-Prrentissage, Université d'Ottawa, 136 rue Jean-Jacques Lussier, Ottawa, ON KIN 6N5, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	This paper aims to share the experiences gained by migrating a preparatory course in acoustics for candidates applying to the graduate program in audiology or speech-language pathology at the University of Ottawa to an online environment. The course is offered…
Fecha:	2012-06-01
Recurso:	Canadian Acoustics