acoustics

Summary

Summary: The branch of physics that deals with sound and sound waves. In medicine it is often applied in procedures in speech and hearing studies. With regard to the environment, it refers to the characteristics of a room, auditorium, theatre, building, etc. that determines the audibility or fidelity of sounds in it. (From Random House Unabridged Dictionary, 2d ed)

Top Publications

  1. ncbi Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfish Halobatrachus didactylus
    Raquel O Vasconcelos
    Departamento de Biologia Animal e Centro de Biologia Ambiental, Faculdade de Ciências da Universidade de Lisboa Bloco C2 Campo Grande, 1749 0161 Lisbon, Portugal
    J Exp Biol 211:502-9. 2008
  2. ncbi Echolocation signals reflect niche differentiation in five sympatric congeneric bat species
    Björn M Siemers
    Animal Physiology, Zoological Institute, University of Tubingen, Morgenstelle 28, 72076 Tubingen, Germany
    Nature 429:657-61. 2004
  3. ncbi Vocal cues to identity and relatedness in giant pandas (Ailuropoda melanoleuca)
    Benjamin D Charlton
    Zoo Atlanta, Atlanta, GA 30315 1440, USA
    J Acoust Soc Am 126:2721-32. 2009
  4. ncbi Audience drives male songbird response to partner's voice
    Clementine Vignal
    Equipe Communications Acoustiques NAMC CNRS UMR8620, Université Paris XI Orsay and LBA Université Jean Monnet, 42023 Saint Etienne cedex 2, France
    Nature 430:448-51. 2004
  5. ncbi Ecological adaptation and species recognition drives vocal evolution in neotropical suboscine birds
    Nathalie Seddon
    Department of Zoology, University of Cambridge, United Kingdom
    Evolution 59:200-15. 2005
  6. ncbi Tomographic imaging of absolute optical absorption coefficient in turbid media using combined photoacoustic and diffusing light measurements
    Lu Yin
    J Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, USA
    Opt Lett 32:2556-8. 2007
  7. ncbi Pulse register phonation in Diana monkey alarm calls
    Tobias Riede
    Department of Psychology, 245 Uris Hall, Cornell University, Ithaca, New York 14853, USA
    J Acoust Soc Am 113:2919-26. 2003
  8. ncbi GSU Praat Tools: scripts for modifying and analyzing sounds using Praat acoustics software
    Michael J Owren
    Department of Psychology, Georgia State University, Atlanta, Georgia 30302 5010, USA
    Behav Res Methods 40:822-9. 2008
  9. ncbi The production of communication signals at the air-water and water-substrate boundaries
    Sean C Lema
    Center for Animal Behavior and Section of Neurobiology, Physiology, and Behavior, University of California, Davis, USA
    J Comp Psychol 116:145-50. 2002
  10. ncbi Nonlinear acoustics in the pant hoots of common chimpanzees (Pan troglodytes): vocalizing at the edge
    Tobias Riede
    National Center for Voice and Speech, Denver Center for the Performing Arts, CO 80204, USA
    J Acoust Soc Am 121:1758-67. 2007

Research Grants

  1. Flow Visualization in the Canine Larynx During Phonation
    Siddarth Khosla; Fiscal Year: 2006
  2. AEROACOUSTICS OF VOICE
    Fariborz Alipour; Fiscal Year: 2007
  3. Acoustic and Respiratory System Correlates of Pausing
    Janet Slifka; Fiscal Year: 2007
  4. Method of Wind Noise Suppression in Hearing Aids
    GARY ELKO; Fiscal Year: 2007
  5. A Simulator for Sound Production in Airways
    Ingo R Titze; Fiscal Year: 2010
  6. The Relationship between Vortices, Acoustics, and Vibration in Vocal Fold Assymet
    Siddarth Khosla; Fiscal Year: 2009
  7. The Relationship between Vortices, Acoustics, and Vibration in Vocal Fold Assymet
    SIDDARTH MITTER KHOSLA; Fiscal Year: 2010
  8. Physiology and Acoustics of Singing II: New Directions
    John Nix; Fiscal Year: 2004
  9. NEUROMOTOR BASIS OF STUTTERING
    MICHAEL MCCLEAN; Fiscal Year: 2003
  10. Influence of subglottic anatomy on voice production
    Scott L Thomson; Fiscal Year: 2010

Detail Information

Publications273 found, 100 shown here

  1. ncbi Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfish Halobatrachus didactylus
    Raquel O Vasconcelos
    Departamento de Biologia Animal e Centro de Biologia Ambiental, Faculdade de Ciências da Universidade de Lisboa Bloco C2 Campo Grande, 1749 0161 Lisbon, Portugal
    J Exp Biol 211:502-9. 2008
    ....
  2. ncbi Echolocation signals reflect niche differentiation in five sympatric congeneric bat species
    Björn M Siemers
    Animal Physiology, Zoological Institute, University of Tubingen, Morgenstelle 28, 72076 Tubingen, Germany
    Nature 429:657-61. 2004
    ....
  3. ncbi Vocal cues to identity and relatedness in giant pandas (Ailuropoda melanoleuca)
    Benjamin D Charlton
    Zoo Atlanta, Atlanta, GA 30315 1440, USA
    J Acoust Soc Am 126:2721-32. 2009
    ..The ecological relevance of acoustically signaling information on caller identity and the potential practical implications for acoustic monitoring of population levels in this endangered species are discussed...
  4. ncbi Audience drives male songbird response to partner's voice
    Clementine Vignal
    Equipe Communications Acoustiques NAMC CNRS UMR8620, Université Paris XI Orsay and LBA Université Jean Monnet, 42023 Saint Etienne cedex 2, France
    Nature 430:448-51. 2004
    ..Here we show that the male of a gregarious songbird species--the zebra finch (Taeniopygia guttata)--pays attention to the mating status of conspecific pairs, and uses this information to control its behaviour towards its female partner...
  5. ncbi Ecological adaptation and species recognition drives vocal evolution in neotropical suboscine birds
    Nathalie Seddon
    Department of Zoology, University of Cambridge, United Kingdom
    Evolution 59:200-15. 2005
    ..To my knowledge, these data provide the first direct evidence that species recognition and ecological adaptation operate in tandem, and that the interplay between these factors drives the evolution of mating signals in suboscine birds...
  6. ncbi Tomographic imaging of absolute optical absorption coefficient in turbid media using combined photoacoustic and diffusing light measurements
    Lu Yin
    J Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, USA
    Opt Lett 32:2556-8. 2007
    ..The experimental results show that targets as small as 0.5 mm in diameter with optical absorption contrasts as low as 1.5 relative to a 50 mm diameter scattering background medium can be clearly detected...
  7. ncbi Pulse register phonation in Diana monkey alarm calls
    Tobias Riede
    Department of Psychology, 245 Uris Hall, Cornell University, Ithaca, New York 14853, USA
    J Acoust Soc Am 113:2919-26. 2003
    ....
  8. ncbi GSU Praat Tools: scripts for modifying and analyzing sounds using Praat acoustics software
    Michael J Owren
    Department of Psychology, Georgia State University, Atlanta, Georgia 30302 5010, USA
    Behav Res Methods 40:822-9. 2008
    The Praat acoustics program (Boersma, 2001) is powerful freeware that is widely used bybehavioral scientists working with digital sound. This article describes GSU Praat Tools, a script package that helps simplify and automate such work...
  9. ncbi The production of communication signals at the air-water and water-substrate boundaries
    Sean C Lema
    Center for Animal Behavior and Section of Neurobiology, Physiology, and Behavior, University of California, Davis, USA
    J Comp Psychol 116:145-50. 2002
    ....
  10. ncbi Nonlinear acoustics in the pant hoots of common chimpanzees (Pan troglodytes): vocalizing at the edge
    Tobias Riede
    National Center for Voice and Speech, Denver Center for the Performing Arts, CO 80204, USA
    J Acoust Soc Am 121:1758-67. 2007
    ..The results are discussed in light of the initial hypotheses...
  11. ncbi Dolphin foraging sounds suppress calling and elevate stress hormone levels in a prey species, the Gulf toadfish
    Luke Remage-Healey
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14850, USA
    J Exp Biol 209:4444-51. 2006
    ....
  12. ncbi Acoustic competition in the gulf toadfish Opsanus beta: acoustic tagging
    Robert F Thorson
    Department of Biology, Virginia Commonwealth University, Richmond 23284-2012, USA
    J Acoust Soc Am 111:2302-7. 2002
    ..Tagging is not generally reciprocal between fish, suggesting parallels to dominance displays...
  13. ncbi Quantitative measures of air-gun pulses recorded on sperm whales (Physeter macrocephalus) using acoustic tags during controlled exposure experiments
    P T Madsen
    Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA
    J Acoust Soc Am 120:2366-79. 2006
    ....
  14. ncbi Effects of proximity and behavioral context on acoustic variation in the coo calls of Japanese macaques
    Hideki Sugiura
    Primate Research Institute, Kyoto University, Kanrin 41, Inuyama, Aichi, Japan
    Am J Primatol 69:1412-24. 2007
    ..The results suggest that Japanese macaques produce calls with more detectable and locatable features depending on the proximity to group members...
  15. ncbi Novel vocal repertoire and paired swimbladders of the three-spined toadfish, Batrachomoeus trispinosus: insights into the diversity of the Batrachoididae
    Aaron N Rice
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    J Exp Biol 212:1377-91. 2009
    ....
  16. ncbi Behavioral assessment of acoustic parameters relevant to signal recognition and preference in a vocal fish
    J R McKibben
    Section of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
    J Acoust Soc Am 104:3520-33. 1998
    ..These results demonstrate that phonotactic assessment of stimulus relevance can be applied in a teleost fish, and that multiple signal parameters can affect receiver response in a vertebrate with relatively simple communication signals...
  17. ncbi Hierarchical organization of human auditory cortex: evidence from acoustic invariance in the response to intelligible speech
    Kayoko Okada
    Center for Cognitive Neuroscience and Department of Cognitive Sciences, University of California, Irvine, CA 92697, USA
    Cereb Cortex 20:2486-95. 2010
    ..This finding provides direct evidence for a hierarchical organization of human auditory cortex and clarifies the cortical pathways supporting the processing of intelligible speech...
  18. ncbi Effect of acoustic clutter on prey detection by bats
    R Arlettaz
    Division of Conservation Biology, Zoological Institute, University of Bern, Baltzerstrasse 6, CH 3012 Bern, Switzerland
    Nature 414:742-5. 2001
    ..These findings suggest that the short, broadband FM echolocation calls associated with gleaning bats are not adapted to detecting prey in clutter...
  19. ncbi Vocal tract length and acoustics of vocalization in the domestic dog (Canis familiaris)
    T Riede
    Institut fur Biologie, c o Professor G Tembrock, Humboldt Universitat zu Berlin, Invalidenstrasse 43, Germany
    J Exp Biol 202:2859-67. 1999
    ..Because of the low correlation between vocal tract length and the first formant, we predict a non-uniform vocal tract shape...
  20. ncbi Information entropy of humpback whale songs
    Ryuji Suzuki
    Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts 02747-2300, USA
    J Acoust Soc Am 119:1849-66. 2006
    ..In addition, the entropy estimates indicate that the maximum amount of information that could be communicated by the sequence of sounds made is less than 1 bit per second...
  21. ncbi Background noise levels and reverberation times in unoccupied classrooms: predictions and measurements
    Heather A Knecht
    The Ohio State University, Columbus, OH, USA
    Am J Audiol 11:65-71. 2002
    ..Results indicated that most classrooms were not in compliance with ANSI noise and reverberation standards. Further, our results suggested that a checklist was not a good predictor of the noisier and more reverberant rooms...
  22. ncbi Depth electrode recordings show double dissociation between pitch processing in lateral Heschl's gyrus and sound onset processing in medial Heschl's gyrus
    Marc Schönwiesner
    Laboratory for Brain, Music and Sound Research BRAMS, Montreal, Canada
    Exp Brain Res 187:97-105. 2008
    ..Our results provide direct evidence for a pitch-specific area on lateral STP with intracranial recordings from the human auditory cortex...
  23. ncbi Raman acoustic levitation spectroscopy of red blood cells and Plasmodium falciparum trophozoites
    Ljiljana Puskar
    Centre for Biospectroscopy and School of Chemistry, Monash University, Wellington Road, 3800, Victoria, Australia
    Lab Chip 7:1125-31. 2007
    ..The spectra obtained have an excellent signal-to-noise ratio and demonstrate for the first time the utility of the technique as a diagnostic and monitoring tool for minute sample volumes of living animal cells...
  24. ncbi Photoacoustic tomography of biological tissues with high cross-section resolution: reconstruction and experiment
    Xueding Wang
    Optical Imaging Laboratory, Biomedical Engineering Program, Texas A and M University 3120 TAMU, College Station, Texas 77843-3120, USA
    Med Phys 29:2799-805. 2002
    ....
  25. ncbi Two-dimensional quantitative photoacoustic image reconstruction of absorption distributions in scattering media by use of a simple iterative method
    Benjamin T Cox
    Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK
    Appl Opt 45:1866-75. 2006
    ..The ability to recover optical properties (which directly reflect tissue physiology) could enhance photoacoustic imaging techniques, particularly methods based on spectroscopic analysis of chromophores...
  26. ncbi Subjective and objective assessment of acoustical and overall environmental quality in secondary school classrooms
    Arianna Astolfi
    Politecnico di Torino, Department of Energetics, Corso Duca degli Abruzzi, 24, 10129, Torino, Italy
    J Acoust Soc Am 123:163-73. 2008
    ..Acoustical satisfaction was lower in nonrenovated classrooms, and one of the most important consequences of poor acoustics was a decrease in concentration...
  27. ncbi The relationship between acoustic structure and semantic information in Diana monkey alarm vocalization
    Tobias Riede
    Institut für Theoretische Biologie, Humboldt Universitat zu Berlin, Invalidenstrasse 43, 10115 Berlin, Germany
    J Acoust Soc Am 114:1132-42. 2003
    ..It is suggested that the formant modulation is the result of active vocal filtering used by the monkeys to encode semantic information, an ability previously thought to be restricted to human speech...
  28. ncbi Sound levels in classrooms and effects on self-reported mood among school children
    Pär Lundquist
    National Institute for Working Life, Umea, Sweden
    Percept Mot Skills 96:1289-99. 2003
    ....
  29. ncbi Complex auditory behaviour emerges from simple reactive steering
    Berthold Hedwig
    Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
    Nature 430:781-5. 2004
    ..These findings are relevant to concepts of insect auditory behaviour and to the development of biologically inspired robots performing cricket-like auditory orientation...
  30. ncbi Do acoustic features of lion, Panthera leo, roars reflect sex and male condition?
    Dana Pfefferle
    Research Group Cognitive Ethology, German Primate Center, Kellnerweg 4, 37077 Gottingen, Germany
    J Acoust Soc Am 121:3947-53. 2007
    ..Instead, lion roars may have mainly been selected to effectively advertise territorial boundaries...
  31. ncbi Fast photoacoustic imaging system based on 320-element linear transducer array
    Bangzheng Yin
    Institute of Laser Life Science, South China Normal University, Guangzhou 510631, People's Republic of China
    Phys Med Biol 49:1339-46. 2004
    ..The methodology and equipment thus provide a rapid and reliable approach to PA imaging that may have potential applications in noninvasive imaging and clinic diagnosis...
  32. ncbi Three-axis acoustic device for levitation of droplets in an open gas stream and its application to examine sulfur dioxide absorption by water droplets
    Terrance L Stephens
    Xerox Corporation, Wilsonville, Oregon 97070, USA
    Rev Sci Instrum 78:014901. 2007
    ..Droplet pH over a central volume of the droplet was measured by planar laser induced fluorescence. The results for the decay of droplet pH versus time are in general agreement with published theory and experiments...
  33. ncbi Classification of natural textures in echolocation
    Jan-Eric Grunwald
    , Luisenstrasse 14, D-80333 Munich, Germany
    Proc Natl Acad Sci U S A 101:5670-4. 2004
    ..The present behavioral results and their simulations in a computer model of the bats' ascending auditory system indicate the involvement of modulation-sensitive neurons in echo analysis...
  34. ncbi Response of acoustic transmission to positive airway pressure therapy in experimental lung injury
    Jukka Räsänen
    Department of Anesthesiology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA
    Intensive Care Med 31:1434-41. 2005
    ..To evaluate the effect of positive end-expiratory pressure on the sound filtering characteristics of injured lungs...
  35. ncbi Acoustic effects of positive end-expiratory pressure on normal lung sounds in mechanically ventilated pigs
    Antonio Vena
    Department of Medical Sciences, Clinical Physiology, Uppsala University Hospital, Uppsala, Sweden
    Clin Physiol Funct Imaging 26:45-53. 2006
    ..The application of increasing levels of PEEP reduced the amplitude and changed the spectral characteristics of normal lung sounds...
  36. ncbi The monopulsed nature of sperm whale clicks
    Bertel Møhl
    Department of Zoophysiology, Institute of Biological Sciences, University of Aarhus, DK 8000 Aarhus C, Denmark
    J Acoust Soc Am 114:1143-54. 2003
    ..The sound levels measured make sperm whale clicks by far the loudest of sounds recorded from any biological source. On-axis click properties support previous work proposing the nose of sperm whales to operate as a generator of sound...
  37. ncbi Acoustics and psychosocial environment in intensive coronary care
    V Blomkvist
    National Institute for Psychosocial Factors and Health, Stockholm, Sweden
    Occup Environ Med 62:e1. 2005
    ..Stress, strain, and fatigue at the workplace have previously not been studied in relation to acoustic conditions...
  38. ncbi The intelligibility of speech in elementary school classrooms
    J S Bradley
    National Research Council, Montreal Road, Ottawa, K1A 0R6, Canada
    J Acoust Soc Am 123:2078-86. 2008
    ..The results are used as a basis for estimating ideal acoustical criteria for elementary school classrooms...
  39. ncbi Enzyme kinetics in acoustically levitated droplets of supercooled water: a novel approach to cryoenzymology
    David D Weis
    Department of Chemistry, Skidmore College, 815 North Broadway, Saratoga Springs, New York 12866 1632, USA
    Anal Chem 77:2558-63. 2005
    ..The rate of the reaction decreased 6-fold in supercooled solution at -6 +/- 2 degrees C. The acoustic levitator apparatus is described in detail...
  40. ncbi The production and perception of long calls by cotton-top tamarins (Saguinus oedipus): acoustic analyses and playback experiments
    D J Weiss
    Department of Psychology, Harvard University, USA
    J Comp Psychol 115:258-71. 2001
    ....
  41. ncbi Pressure-dependent attenuation and scattering of phospholipid-coated microbubbles at low acoustic pressures
    Marcia Emmer
    Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam, The Netherlands
    Ultrasound Med Biol 35:102-11. 2009
    ..Between 30 and 150 kPa, 16 dB additional scattered power was obtained. We concluded that threshold behavior of phospholipid-coated microbubbles results in pressure-dependent attenuation and scattering...
  42. ncbi Virtual adult ears reveal the roles of acoustical factors and experience in auditory space map development
    Robert A A Campbell
    Department of Physiology, Anatomy and Genetics, Sherrington Building, University of Oxford, Oxford, United Kingdom
    J Neurosci 28:11557-70. 2008
    ..is likely to depend on refinements in neural circuitry, maturation of the structure of the SRFs (particularly their spatial extent) can be largely accounted for by changes in the acoustics associated with growth of the head and ears.
  43. ncbi Syllable acoustics, temporal patterns, and call composition vary with behavioral context in Mexican free-tailed bats
    Kirsten M Bohn
    Section of Neurobiology, University of Texas at Austin, Austin, Texas 78712, USA
    J Acoust Soc Am 124:1838-48. 2008
    Recent research has shown that some bat species have rich vocal repertoires with diverse syllable acoustics. Few studies, however, have compared vocalizations across different behavioral contexts or examined the temporal emission ..
  44. ncbi Analysis of magnetic resonance imaging acoustic noise generated by a 4.7 T experimental system
    S A Counter
    Department of Neurology, Harvard University Biological Laboratories, Cambridge, Massachusetts 01238, USA
    Acta Otolaryngol 120:739-43. 2000
    ..The intense MRI acoustic impulse noise generated by the 4.7 T system may cause masking of stimuli used in fMRI of the auditory cortex, reduce the hearing acuity of experimental animals and present a risk for unprotected human ears...
  45. ncbi Acoustic characterization of single ultrasound contrast agent microbubbles
    Jeroen Sijl
    Physics of Fluids Group, University of Twente, Enschede, The Netherlands
    J Acoust Soc Am 124:4091-7. 2008
    ....
  46. ncbi Foliage echoes: a probe into the ecological acoustics of bat echolocation
    R Muller
    Department of Electrical Engineering, Yale University, New Haven, Connecticut 065420 8284, USA
    J Acoust Soc Am 108:836-45. 2000
    ..here aims at understanding the biosonar system of bats based on the properties of its natural inputs (ecological acoustics). Echoes from foliages are studied as examples of ubiquitous, natural targets...
  47. ncbi Acoustic identification of twelve species of echolocating bat by discriminant function analysis and artificial neural networks
    S Parsons
    School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK
    J Exp Biol 203:2641-56. 2000
    ..Our findings are discussed in terms of recent advances in recording and analysis technologies, and are related to factors causing convergence and divergence of echolocation call design in bats...
  48. ncbi Simultaneous recovery of tissue physiological and acoustic properties and the criteria for wavelength selection in multispectral photoacoustic tomography
    Zhen Yuan
    Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611 6131, USA
    Opt Lett 34:1714-6. 2009
    ..We found that the image quality and the separation between acoustic velocity and different chromophore concentrations strongly depend on the measurement wavelengths of incident laser source...
  49. ncbi Acoustical mimicry in a predatory social parasite of ants
    F Barbero
    Department of Animal and Human Biology, University of Turin, 10123 Turin, Italy
    J Exp Biol 212:4084-90. 2009
    ..We consider the role of acoustics in ant communication and its exploitation by social parasites...
  50. ncbi Large-scale movement and reef fidelity of grey reef sharks
    Michelle R Heupel
    School of Earth and Environmental Sciences, James Cook University, Townsville, Queensland, Australia
    PLoS ONE 5:e9650. 2010
    ..amblyrhynchos populations between these two regions. Results indicate limited reef fidelity and evidence of large-scale movements within northern Australian waters...
  51. ncbi Low frequency groans indicate larger and more dominant fallow deer (Dama dama) males
    Elisabetta Vannoni
    Zoologisches Institut, Universitat Zurich, Zurich, Switzerland
    PLoS ONE 3:e3113. 2008
    ..However, the role of the acoustic features of vocalisations as cues to other quality-related phenotypic characteristics of callers has rarely been investigated...
  52. ncbi Application of acoustic telemetry to assess residency and movements of rockfish and lingcod at created and natural habitats in Prince William Sound
    Brad F Reynolds
    Department of Marine Sciences, University of South Alabama and Dauphin Island Sea Lab, Dauphin Island, Alabama, USA
    PLoS ONE 5:e12130. 2010
    ..Our results suggest the potential for artificial reefs to provide rockfish habitat in the event of disturbances to natural habitat...
  53. ncbi Regional distribution of acoustic-based lung vibration as a function of mechanical ventilation mode
    R Phillip Dellinger
    Division of Cardiovascular Disease and Critical Care Medicine, Robert Wood Johnson School of Medicine, University of Medicine and Dentistry of New Jersey, Cooper University Hospital, Camden, NJ 08103, USA
    Crit Care 11:R26. 2007
    ..In this study, we objectively evaluated the differences in regional lung vibration during different modes of mechanical ventilation by means of this new technology...
  54. ncbi Mass spectrometry of acoustically levitated droplets
    Michael S Westphall
    Department of Chemistry, 1101 University Avenue, University of Wisconsin Madison, Madison, Wisconsin 53706, USA
    Anal Chem 80:5847-53. 2008
    ..It is likely, although not yet proven, that the role of the droplet charging is to increase the strength of the electric field at the surface of the droplet, reducing charge recombination after ion desorption...
  55. ncbi A comparison of wood density between classical Cremonese and modern violins
    Berend C Stoel
    Department of Radiology, Division of Image Processing, Leiden University Medical Center, Leiden, The Netherlands
    PLoS ONE 3:e2554. 2008
    ..Either of these mechanisms may help explain the acoustical differences between the classical and modern violins...
  56. ncbi Combined ultrasound and optoacoustic system for real-time high-contrast vascular imaging in vivo
    Joël J Niederhauser
    Institute of Applied Physics, University of Bern, CH 3012 Bern, Switzerland
    IEEE Trans Med Imaging 24:436-40. 2005
    ..The functionality of the system was demonstrated in vivo on human finger, arm and leg. The proposed system combines the merits and most compelling features of optics and ultrasound in a single high-contrast vascular imaging device...
  57. ncbi A modeling approach to explain pulse design in bats
    Arjan Boonman
    INCM CNRS UMR6193, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
    Biol Cybern 97:159-72. 2007
    ..The existence of an optimal sweep rate explains why bats are likely to use certain combinations of bandwidth and pulse duration to obtain such sweep rates...
  58. ncbi Quantitative spatially resolved measurement of tissue chromophore concentrations using photoacoustic spectroscopy: application to the measurement of blood oxygenation and haemoglobin concentration
    Jan Laufer
    Department of Medical Physics and Bioengineering, University College London, Malet Place Engineering Building, London WC1E 6BT, UK
    Phys Med Biol 52:141-68. 2007
    ..8 g l(-1) (+/-58 microM) and +/-4.4 g l(-1) (+/-68 microM) for the HbO(2) and HHb concentrations respectively and +/-4% for SO(2) with an accuracy in the latter in the range -6%-+7%...
  59. ncbi Influence of intensive coronary care acoustics on the quality of care and physiological state of patients
    Inger Hagerman
    Department of Cardiology, Huddinge University Hospital, Karolinska Institutet, Huddinge, Sweden
    Int J Cardiol 98:267-70. 2005
    To evaluate the possible role of room acoustics on patients with coronary artery disease and to test the hypothesis that a poor acoustics environment is likely to produce a bad work environment resulting in unwanted sound that could ..
  60. ncbi Basic acoustic properties of microbubbles
    Nico de Jong
    Deparment of Cardiology and Experimental Echocardiography, Throraxcenter, Erasmus University Rotterdam and the Interuniversity Cardiologic Institute Netherlands ICIN, Utrecht, The Netherlands
    Echocardiography 19:229-40. 2002
    ..This consequence is due to rupture, disappearance, change of gas content, etc. Using these specific characteristics of the contrast bubbles will open new perspectives in imaging and analysis for medical diagnosis...
  61. ncbi Acoustic monitoring of double-lumen ventilated lungs for the detection of selective unilateral lung ventilation
    Shai Tejman-Yarden
    Division of Pediatrics, Soroka Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva 84101, Israel
    Anesth Analg 103:1489-93. 2006
    ..This study suggests that acoustic monitoring is effective for the detection of selective lung ventilation and may be useful for early diagnosis of OLI...
  62. ncbi Duet-splitting and the evolution of gibbon songs
    Thomas Geissmann
    Institute of Zoology, Tierarztliche Hochschule Hannover, Germany
    Biol Rev Camb Philos Soc 77:57-76. 2002
    ..This appears to be the first time that a non-duetting animal can be shown to be derived from a duetting form. (4) The return to exclusive solo singing may be related to the isolated island distribution of the non-duetting species...
  63. ncbi A spiral-shaped harvester with an improved harvesting element and an adaptive storage circuit
    Hongping Hu
    Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1177-87. 2007
    ..Numerical results show that the introduction of a dc-dc converter in the storage circuit or a SSHI in the harvesting structure can raise the charging efficiency several times higher than a harvester without a dc-dc converter or an SSHI...
  64. ncbi Comment on "admittance matrix of asymmetric piezoelectric bimorph with two separate electrical ports under general distributed load"
    Jiashi Yang
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1087-9. 2007
    ..We show that, in general, the neutral axis cannot be used as a reference axis in the modeling of asymmetrically laminated beams or plates with elastic and piezoelectric layers...
  65. ncbi Two-dimensional analysis of spurious modes in aluminum nitride film resonators
    Xun Gong
    Laboratory of Modern Acoustics, Nanjing University, Nanjing, Jiangsu 210093, China
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1171-6. 2007
    ..The spectrum of spurious modes is calculated and the influence of the spurious modes is discussed...
  66. ncbi Optimal selection of piezoelectric substrates and crystal cuts for SAW-based pressure and temperature sensors
    Xiangwen Zhang
    Key Laboratory for Complex Systems and Intelligence Science, Chinese Academy of Sciences, Beijing, China
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1207-16. 2007
    ....
  67. ncbi Side radiation of Rayleigh waves from synchronous SAW resonators
    Olli Holmgren
    Helsinki University of Technology, Espoo, Finland
    IEEE Trans Ultrason Ferroelectr Freq Control 54:861-9. 2007
    ..Furthermore, the propagation angles of the Rayleigh-wave beams as a function of frequency are calculated. The computed angles are compared with the measured ones for both the LiTaO3 and LiNbO3 substrates...
  68. ncbi Effects of a parallel resistor on electrical characteristics of a piezoelectric transformer in open-circuit transient state
    Kuo Tsai Chang
    Department of Electrical Engineering, National United University, Miaoli 36003, Taiwan, ROC
    IEEE Trans Ultrason Ferroelectr Freq Control 54:107-17. 2007
    ..The advantages of adding the parallel resistor also are discussed. From the measured results, the DC time constant is greatly decreased from 9 to 0.04 ms by a 10 k(omega) parallel resistance under open output...
  69. ncbi SAW filters based on parallel-connected coupled resonator filters with offset frequencies
    Johanna Meltaus
    Optics and Molecular Materials Laboratory, Helsinki University of Technology, Espoo, FIN 02015 HUT, Finland
    IEEE Trans Ultrason Ferroelectr Freq Control 54:167-76. 2007
    ..23% are achieved at 868 MHz. On 42 degrees-LiTaO3, the corresponding figures of merit are 1.3 dB for minimum insertion loss and 4.1% bandwidth at 1960 MHz. The filters on 42 degrees-LiTaO3 also have remarkably flat passbands...
  70. ncbi Thermal compensation in GaPO4 beam resonators: experimental evidence for length extensional mode
    Fabrice Sthal
    IEEE Trans Ultrason Ferroelectr Freq Control 54:196-7. 2007
    ..Experimental evidence of a temperature-compensated cut in GaPO4 rectangular beam resonator vibrating in length extension is given...
  71. ncbi Experimental measurement and numerical analysis on resonant characteristics of cantilever plates for piezoceramic bimorphs
    Chien Ching Ma
    Department of Mechanical Engineering, National Taiwan University, Taipei, Republic of China
    IEEE Trans Ultrason Ferroelectr Freq Control 54:227-39. 2007
    ..Good agreements between the experimental measured data and numerical calculated results are found for resonant frequencies and mode shapes of the piezoceramic bimorph...
  72. ncbi Application of the nonlinear, double-dynamic Taguchi method to the precision positioning device using combined piezo-VCM actuator
    Yung Tien Liu
    Department of Mechanical and Automation Engineering, National Kaohsiung First University of Science and Technology, Yenchau, Kaohsiung 824, Taiwan, ROC
    IEEE Trans Ultrason Ferroelectr Freq Control 54:240-50. 2007
    ..The analysis of variance (ANOVA) was applied to set the optimum parameters based on the high-precision positioning process...
  73. ncbi Electrostatic transducers for micromechanical resonators: free space and solid dielectric
    Ville Kaajakari
    IEEE Trans Ultrason Ferroelectr Freq Control 53:2484-9. 2006
    ..Although the solid dielectric offers higher permittivity than the free-space-filled transducers, the unfavorable locations of the internal transducers reduce or even remove the performance advantage of the higher permittivity...
  74. ncbi Investigation of the scaling rules determining the performance of film bulk acoustic resonators operating as mass sensors
    Jan Weber
    Siemens AG, Corporate Technology, Munchen, Germany
    IEEE Trans Ultrason Ferroelectr Freq Control 54:405-12. 2007
    ..It was found that increasing the frequency leads to a principally improved performance of these devices. Problems arising for the horizontal as well as the vertical dimension and structure are investigated...
  75. ncbi Precise trajectory tracking of a piezoactuator-driven stage using an adaptive backstepping control scheme
    Hsin Jang Shieh
    Department of Electrical Engineering, National Dong Hwa University, Shoufong, Hualien, Taiwan
    IEEE Trans Ultrason Ferroelectr Freq Control 54:705-14. 2007
    ..Experimental results illustrate the feasibility of the proposed control for practical applications in trajectory tracking...
  76. ncbi Influence of surface roughness of Bragg reflectors on resonance characteristics of solidly-mounted resonators
    Chung Jen Chung
    Department of Electrical Engineering, National Sun Yat Sen University, Kaohsiung, Taiwan, R O C
    IEEE Trans Ultrason Ferroelectr Freq Control 54:802-8. 2007
    ..By controlling deposition parameters, the surface roughness of the Bragg reflector is improved, and better resonance characteristics of SMR are obtained...
  77. ncbi Compound piezoelectric cylindrical resonators as sensors of the rheological parameters of viscoelastic media
    Piotr Kiełczyński
    Acoustoelectronics Laboratory, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1199-206. 2007
    ..The analysis presented in this paper can be utilized for the design and construction of cylindrical piezoelectric viscosity sensors, annular accelerometers, filters, transducers, and multilayer resonators...
  78. ncbi Analytical solutions for the transverse deflection of a piezoelectric circular axisymmetric unimorph actuator
    Shuxiang Dong
    Materials Science and Engineering Department, Virginia Tech, Blacksburg, VA 24061, USA
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1240-9. 2007
    ..Derived formulas are very simple that offer a quick method for engineering design and optimization of a circular unimorph piezoelectric actuator...
  79. ncbi Modeling impermeable membranes as acoustic filters for biomedical applications
    Miguel A Goenaga
    Dept. of Electr. and Comput. Eng, Puerto Rico Univ, Mayaguez, PR 00681
    Conf Proc IEEE Eng Med Biol Soc 1:6406-9. 2006
    ..Results indicated that membrane thickness and density affect sound transmission the most. Membrane sound speed had minimal effect on sound transmission...
  80. ncbi Effects of coupled vibrations on the acoustical performance of underwater cylindrical shell transducers
    Boris Aronov
    BTech Acoustics, LLC, Acoustics Research Laboratory, Advanced Technology and Manufacturing Center, and Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth, 151 Martine Street, Fall River, Massachusetts 02723, USA
    J Acoust Soc Am 122:3419-27. 2007
    ..Recommendations are made on the application of cylindrical piezoelectric elements with different aspect ratios for underwater transducer applications...
  81. ncbi Acousto-optic interaction in a non-homogeneous acoustic field excited by a wedge-shaped transducer
    Vladimir I Balakshy
    Moscow State University, Department of Physics, Vorobyevy Gory 1, 119991 Moscow, Russia
    Ultrasonics 48:351-6. 2008
    ..It is demonstrated that the diffraction efficiency in the Bragg regime can approach 100% in spite of a noticeable phase mismatch. The appropriate optimal values of ultrasound power and incidence angles of light are found...
  82. ncbi Dual mode tuning strategy of a slightly asymmetric ring
    Han Gil Park
    Advanced Automotive Research Center, School of Mechanical and Aerospace Engineering, Seoul National University, San 56 1 Shinlim Dong, Kwanak gu, Seoul 151 744, South Korea
    J Acoust Soc Am 123:1383-91. 2008
    ..The position and amount of the additional masses are determined analytically. Analytical tuning results are compared and verified with those of the finite element analysis...
  83. ncbi On the steering of sound energy through a supercritical plate by a near-field transducer array
    Brian E Anderson
    Applied Research Laboratory, The Pennsylvania State University, PO Box 30, State College, Pennsylvania 16804, USA
    J Acoust Soc Am 123:2613-9. 2008
    ..Experimental results of sound transmission versus angle of incidence of finite sized plates agree qualitatively with theoretical results from an analysis of the transmission through an unbounded flexible partition...
  84. ncbi The trapped fluid transducer: modeling and optimization
    Lei Cheng
    Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48105 2125, USA
    J Acoust Soc Am 123:4152-64. 2008
    ..In analogy to the cochlea, a tapered-width plate design is considered and shown to have a more uniform frequency response than a similar plate with no taper...
  85. ncbi Characterization of sol-gel Pb(Zr0.53Ti0.47O3) in thin film bulk acoustic resonators
    Janine Conde
    Department of Materials Science, Ecole Polytechnique Federale de Lausanne EPFL, Switzerland
    IEEE Trans Ultrason Ferroelectr Freq Control 55:1373-9. 2008
    ..Dielectric, piezoelectric, and elastic properties of the f111g-textured PZT film are reported and compared to direct measurements and to literature values...
  86. ncbi Classification of live, untethered zooplankton from observations of multiple-angle acoustic scatter
    Paul L D Roberts
    Marine Physical Lab, Scripps Institution of Oceanography, La Jolla, California 92093 0238, USA
    J Acoust Soc Am 124:796-802. 2008
    ..These results support the idea that broadband, multiple-angle scatter can be used to classify organisms of different sizes and shapes...
  87. ncbi Acoustic characterization of panel materials under simulated ocean conditions using a parametric array source
    Victor F Humphrey
    Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, United Kingdom
    J Acoust Soc Am 124:803-14. 2008
    ..The potential of the technique is also illustrated with experimental results for test panels for hydrostatic pressures up to 2.8 MPa. An extensive discussion of the measurement limitations is included...
  88. ncbi Edge resonance in semi-infinite thick pipe: numerical predictions and measurements
    M Ratassepp
    Department of Mechanics, Tallinn University of Technology, Tallinn, Estonia
    J Acoust Soc Am 124:875-85. 2008
    ..The reflected energy amplitudes show that at the resonance frequencies the incident wave is strongly converted to L(0,1) and L(0,3) modes, depending also on the curvature parameter of the pipe...
  89. ncbi Active damping control unit using a small scale proof mass electrodynamic actuator
    Cristóbal González Díaz
    Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, United Kingdom
    J Acoust Soc Am 124:886-97. 2008
    ....
  90. ncbi Smart panel with active damping units. Implementation of decentralized control
    Cristóbal González Díaz
    Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, United Kingdom
    J Acoust Soc Am 124:898-910. 2008
    ..The two analyses have shown that reductions of up to 10 dB in both vibration response and sound radiation are measured at low audio frequencies, below about 250 Hz...
  91. ncbi Time reversal of flexural waves in a beam at audible frequency
    Dany Francoeur
    Groupe d Acoustique de l Universite de Sherbrooke, Universite de Sherbrooke, Sherbrooke, Quebec, Canada
    J Acoust Soc Am 124:1006-17. 2008
    ..Finally, the "Decomposition de l'Operateur de Retournement Temporel" approach is examined to detect and localize point mass scatterers in the beam...
  92. ncbi The effect of a distributed mass loading on the frequency response of a MEMS mesh resonator
    M J Bartkovsky
    Dept of Chem Eng, Carnegie Mellon Univ, Pittsburgh, PA 15213, USA
    Conf Proc IEEE Eng Med Biol Soc 1:1862-5. 2006
    ..We use a finite element model to demonstrate how a distributed mass loading affect the frequency responses of our MEMS structures...
  93. ncbi Ultra-steep cut-off double mode SAW filter and its application to a PCS duplexer
    Shogo Inoue
    Media Devices Laboratory, Fujitsu Laboratories Ltd, Akashi, 674 8555 Japan
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1882-7. 2007
    ..Moreover, we propose a compact multiple-connection configuration for low insertion loss. Applying these technologies to the Rx filter, we successfully develop a PCS SAW duplexer...
  94. ncbi Structural acoustic control of plates with variable boundary conditions: design methodology
    Joseph D Sprofera
    Pratt School of Engineering, Duke University, Durham, North Carolina 27708, USA
    J Acoust Soc Am 122:271-9. 2007
    ..Modeled results indicate that it is possible to minimize the impact of uncertain boundary conditions in active structural acoustic control by optimizing the placement of transducers with respect to those uncertainties...
  95. ncbi Active listening room compensation for massive multichannel sound reproduction systems using wave-domain adaptive filtering
    Sascha Spors
    Deutsche Telekom Laboratories, Berlin University of Technology, Ernst Reuter Platz 7, Berlin, Germany
    J Acoust Soc Am 122:354-69. 2007
    ..Due to the time-varying nature of room acoustics, the compensation signals have to be determined by an adaptive system...
  96. ncbi Dynamic response of an insonified sonar window interacting with a Tonpilz transducer array
    Andrew J Hull
    Autonomous Systems and Technology Department, Naval Undersea Warfare Center Division, Newport, Rhode Island 02841, USA
    J Acoust Soc Am 122:794-803. 2007
    ..The effects of these nulls in the beam patterns of the array are demonstrated...
  97. ncbi An investigation of transmission coefficients for finite and semi-infinite coupled plate structures
    Michael B Skeen
    School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW, Australia
    J Acoust Soc Am 122:814-22. 2007
    ..In the cases considered, it is found that the semi-infinite system is a good approximation for finite systems after frequency averaging, especially if the system is excited with multiple point force excitation...
  98. ncbi Enhancing low frequency sound transmission measurements using a synthesis method
    Teresa Bravo
    Universite de Technologie de Compiegne, Laboratoire Roberval FRE CNRS 2833, Secteur Acoustique, Compiegne Cedex, France
    J Acoust Soc Am 122:869-80. 2007
    ..They also validate the proposed synthesis method for providing an estimate that only depends on the properties of the partition itself...
  99. ncbi Quartz crystal microbalance based on torsional piezoelectric resonators
    W Bücking
    Institute of Physical Chemistry, Clausthal University of Technology, Arnold Sommerfeld Strasse 4, D 38678 Clausthal Zellerfeld, Germany
    Rev Sci Instrum 78:074903. 2007
    ..Details of the geometry matter if the viscoelastic properties of the sample are of interest...
  100. ncbi Nonlinear interface between the piezoelectric harvesting structure and the modulating circuit of an energy harvester with a real storage battery
    Yuantai Hu
    Department of Mechanics, Huazhong Univ of Sci and Technol, Wuhan, Hubei, China
    IEEE Trans Ultrason Ferroelectr Freq Control 55:148-60. 2008
    ..It was found that the introduction of a DDC in the modulating circuit and an SSHI in the harvesting structure can raise the charging efficiency by several times...
  101. ncbi Acoustical scattering by arrays of cylinders in waveguides
    Liang Wu Cai
    Department of Mechanical and Nuclear Engineering, Kansas State University, Manhattan, Kansas 66506, USA
    J Acoust Soc Am 122:1340. 2007
    ..The similarity diminishes when there are multiple propagating modes. Despite the mode mixing, some key features in the scattering as observed in the two-dimensional problem remain observable in the waveguide case...

Research Grants80

  1. Flow Visualization in the Canine Larynx During Phonation
    Siddarth Khosla; Fiscal Year: 2006
    ..Coursework in fluid mechanics, computational flow dynamics, vibrations, and acoustics will give the candidate the necessary knowledge to derive new theoretical models for laryngeal diseases...
  2. AEROACOUSTICS OF VOICE
    Fariborz Alipour; Fiscal Year: 2007
    ..of this application is to establish a firm understanding of the biomechanics, kinematics, aerodynamics, and acoustics of vocal fold oscillation, hemilarynx phonation, register shift, and vocal fold impact dynamics...
  3. Acoustic and Respiratory System Correlates of Pausing
    Janet Slifka; Fiscal Year: 2007
    ..requirements for generating within-breath pauses, the impact of those requirements on the resulting speech acoustics, and the relation between within-breath pauses and the speech planning process...
  4. Method of Wind Noise Suppression in Hearing Aids
    GARY ELKO; Fiscal Year: 2007
    ..I investigation and further evaluate and refine a promising novel digital technique we have developed at MH Acoustics for reducing wind noise in hearing aids...
  5. A Simulator for Sound Production in Airways
    Ingo R Titze; Fiscal Year: 2010
    ..The work will tie together many fragmentary efforts presently ongoing in fluid mechanics, acoustics, and biomechanics of respiration and phonation...
  6. The Relationship between Vortices, Acoustics, and Vibration in Vocal Fold Assymet
    Siddarth Khosla; Fiscal Year: 2009
    ..application, which is: glottal airflow contains certain vortical structures that significantly contribute to the acoustics; and that in certain laryngeal pathologies, these vortical structures are reduced or eliminated...
  7. The Relationship between Vortices, Acoustics, and Vibration in Vocal Fold Assymet
    SIDDARTH MITTER KHOSLA; Fiscal Year: 2010
    ..application, which is: glottal airflow contains certain vortical structures that significantly contribute to the acoustics;and that in certain laryngeal pathologies, these vortical structures are reduced or eliminated...
  8. Physiology and Acoustics of Singing II: New Directions
    John Nix; Fiscal Year: 2004
    ..at the Denver Center for the Performing Arts will host the 2nd International Conference on the Physiology and Acoustics of Singing on October 7-9, 2004...
  9. NEUROMOTOR BASIS OF STUTTERING
    MICHAEL MCCLEAN; Fiscal Year: 2003
    ..This approach is taken in the present research through analyses of orofacial movements and voice acoustics. A central issue in the study of pattern generating function for speech concerns how different muscle systems (e...
  10. Influence of subglottic anatomy on voice production
    Scott L Thomson; Fiscal Year: 2010
    Vocal fold vibration is caused by a three-way coupling between laryngeal aerodynamics, acoustics, and tissue dynamics...
  11. Predictors of Speech Quality after Tongue Cancer Surgery
    Maureen Stone; Fiscal Year: 2009
    ..3: A vocal tract model that maps geometry to acoustics can provide targeted speech therapy and can inform surgical decisions...
  12. Predictors of Speech Quality after Tongue Cancer Surgery
    Maureen Stone; Fiscal Year: 2010
    ..3: A vocal tract model that maps geometry to acoustics can provide targeted speech therapy and can inform surgical decisions...
  13. A Simulator for Sound Production in Airways
    Ingo Titze; Fiscal Year: 2009
    ..The work will tie together many fragmentary efforts presently ongoing in fluid mechanics, acoustics, and biomechanics of respiration and phonation...
  14. A Simulator for Sound Production in Airways
    Ingo Titze; Fiscal Year: 2007
    ..The work will tie together many fragmentary efforts presently ongoing in fluid mechanics, acoustics, and biomechanics of respiration and phonation...
  15. Physiology & Measurement of Vocal Fold Vibration
    Jack J Jiang; Fiscal Year: 2010
    ..Genetic Algorithm (GA) from the experimentally measured time series, such high-speed imaging, EGG, PGG, and acoustics, we can estimate both the stiffness and mass changes due to vocal fold pathology...
  16. Physiology & Measurement of Vocal Fold Vibration
    Jack Jiang; Fiscal Year: 2009
    ..Genetic Algorithm (GA) from the experimentally measured time series, such high-speed imaging, EGG, PGG, and acoustics, we can estimate both the stiffness and mass changes due to vocal fold pathology...
  17. Physiology & Measurement of Vocal Fold Vibration
    Jack Jiang; Fiscal Year: 2007
    ..Genetic Algorithm (GA) from the experimentally measured time series, such high-speed imaging, EGG, PGG, and acoustics, we can estimate both the stiffness and mass changes due to vocal fold pathology...
  18. Biomechanics of the False Vocal Folds
    Fariborz Alipour; Fiscal Year: 2010
    ..The objective of this application is to establish a firm understanding of the biomechanics, aerodynamics, and acoustics of false vocal fold oscillation...
  19. Use of External Cueing to Treat Hypophonia in Parkinson's Disease
    Jessica E Huber; Fiscal Year: 2010
    ..of respiratory strength, respiratory kinematics during speech, laryngeal aerodynamics, and articulatory acoustics. The third specific aim is to determine the long-term maintenance of speech treatment gains, across a six-month ..
  20. Use of External Cueing to Treat Hypophonia in Parkinson's Disease
    Jessica Huber; Fiscal Year: 2009
    ..of respiratory strength, respiratory kinematics during speech, laryngeal aerodynamics, and articulatory acoustics. The third specific aim is to determine the long-term maintenance of speech treatment gains, across a six-month ..
  21. EFFICACY OF VOICE TREATMENT FOR PARKINSONS DISEASE
    Lorraine Ramig; Fiscal Year: 2001
    ..orbicularis oris superior & inferior (OOS & OO1)) muscle activity, labial kinematics and articulatory acoustics; 4) establish the interactive roles of phonatory and articulatory enhancement on phonetic accuracy and speech ..
  22. Sound Sources of Phonation
    ZHAOYAN contact ZHANG; Fiscal Year: 2010
    ..research is to develop a common theoretical framework that will link together vocal fold dynamics, aerodynamics, acoustics, and speech perception...
  23. LINKS BETWEEN PRODUCTION AND PERCEPTION IN SPEECH
    DOUG WHALEN; Fiscal Year: 2009
    ..acoustic manner and that the link would be seen in modifications of the vocal tract shape to achieve particular acoustics. An alternative approach holds that speech consists of gestures (the coordinated activity of articulators), such ..
  24. Hearing Aids and Auditory Evoked Potentials
    Curtis Billings; Fiscal Year: 2007
    ..amplification on neural responses in normal-hearing participants, (2) determine the same effects in hearing-impaired individuals, and (3) quantify signal- processing effects on stimuli acoustics using in-the-canal acoustic recordings.
  25. Nonlinear Acoustics in Calibration/Metrology of High Intensity Focused Ultrasound
    VERA KHOKHLOVA; Fiscal Year: 2010
    ..This lack of standards and relations of acoustics to bioeffects is a major impediment to broad clinical adoption of HIFU...
  26. Nonlinear Acoustics in Calibration/Metrology of High Intensity Focused Ultrasound
    VERA KHOKHLOVA; Fiscal Year: 2009
    ..This lack of standards and relations of acoustics to bioeffects is a major impediment to broad clinical adoption of HIFU...
  27. Nonlinear Acoustics in Calibration/Metrology of High Intensity Focused Ultrasound
    VERA KHOKHLOVA; Fiscal Year: 2009
    ..This lack of standards and relations of acoustics to bioeffects is a major impediment to broad clinical adoption of HIFU...
  28. NEURAL MECHANISMS OF BINAURAL HEARING
    Shigeyuki Kuwada; Fiscal Year: 2007
    ..We will explore distance processing in both anechoic and reverberant environments because the acoustics are quite different and both of these environments, to one degree or another, are normally experienced by humans ..
  29. Bubble Based Acoustic Force Elasticity for Presbyopia
    KYLE HOLLMAN; Fiscal Year: 2006
    ..1) Experimentally determine the relationship between physical parameters in three main areas: elastic media, acoustics, and bubbles...
  30. Mechanisms for Wound Healing with Ultrasound
    Denise C Hocking; Fiscal Year: 2010
    ..team of scientists, engineers, and clinicians with expertise in cell and ECM biology, biomedical ultrasound and acoustics, vascular biology, and wound healing...
  31. Speech in Glossectomy Assessed by Tagged-MRI
    Emi Murano; Fiscal Year: 2007
    ..The data will be compared to speech articulations and acoustics. The clinical goal of this work is to provide objective measurements of tongue function following surgical ..
  32. LINKS BETWEEN PRODUCTION AND PERCEPTION IN SPEECH
    Carol Fowler; Fiscal Year: 2007
    ..acoustic manner and that the link would be seen in modifications of the vocal tract shape to achieve particular acoustics. An alternative approach holds that speech consists of gestures (the coordinated activity of articulators), such ..
  33. LINKS BETWEEN PRODUCTION AND PERCEPTION IN SPEECH
    DOUG H WHALEN; Fiscal Year: 2010
    ..acoustic manner and that the link would be seen in modifications of the vocal tract shape to achieve particular acoustics. An alternative approach holds that speech consists of gestures (the coordinated activity of articulators), such ..
  34. AERODYNAMIC AND ACOUSTIC MODELS OF PHONATIAN
    Ronald Scherer; Fiscal Year: 2001
    ..The focus of this research proposal is to resolve basic issues related to the aerodynamics and acoustics of phonation...
  35. Perception of Dysarthric Speech
    ANDREW JAMES LOTTO; Fiscal Year: 2010
    ..The causality of the relationships between acoustics and perception uncovered by these analyses will be tested through perceptual experiments using speech samples ..