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43.10.Ce	Conferences, lectures, and announcements (not of the Acoustical Society of America)
43.10.Df	Other acoustical societies and their publications, online journals, and other electronic publications

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Analysis of parameter effects on sound energy decay in coupled volume systems (A)

David Timothy Bradley

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1754-1754 (2006); (1 page)

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Several noise criteria methods commonly used in architectural acoustics have been quantitatively related to noise perception and task performance under a variety of ventilation systems-induced background noise conditions. Noise criteria, balanced noise criteria, room criteria, room criteria mark II, and A-weighted equivalent sound pressure level were examined. The first phase of the project included noise conditions controlled to be non-time-varying and nontonal, with neutral, rumbly, roaring, or hissy characteristics. An intermediate study examined exposure time length and types of performance tasks used. The final phase included noise conditions containing various levels of discrete tones from 120 to 595 Hz. Under each noise, subjects completed performance tasks and perception questionnaires. Results indicate task performance was significantly affected by perception of noise, but this relationship was not fully demonstrated by the criteria systems analyzed. The five criteria were generally well suited in describing subjective loudness perception, but some discrepancies in criteria spectral quality ratings and subjective perception existed. Finally, perception of annoyance changed based on the frequency and prominence of tones in noise, but these changes were not reflected in the criteria level or spectral quality ratings. Modifications to the existing criteria are recommended.

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43.55.Ka	Computer simulation of acoustics in enclosures, modeling
43.55.Gx	Studies of existing auditoria and enclosures
43.55.Hy	Subjective effects in room acoustics, speech in rooms

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Investigation of ocean acoustics using autonomous instrumentation to quantify the water-sediment boundary properties (A)

Jason David Holmes

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1754-1754 (2006); (1 page)

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Several noise criteria methods commonly used in architectural acoustics have been quantitatively related to noise perception and task performance under a variety of ventilation systems-induced background noise conditions. Noise criteria, balanced noise criteria, room criteria, room criteria mark II, and A-weighted equivalent sound pressure level were examined. The first phase of the project included noise conditions controlled to be non-time-varying and nontonal, with neutral, rumbly, roaring, or hissy characteristics. An intermediate study examined exposure time length and types of performance tasks used. The final phase included noise conditions containing various levels of discrete tones from 120 to 595 Hz. Under each noise, subjects completed performance tasks and perception questionnaires. Results indicate task performance was significantly affected by perception of noise, but this relationship was not fully demonstrated by the criteria systems analyzed. The five criteria were generally well suited in describing subjective loudness perception, but some discrepancies in criteria spectral quality ratings and subjective perception existed. Finally, perception of annoyance changed based on the frequency and prominence of tones in noise, but these changes were not reflected in the criteria level or spectral quality ratings. Modifications to the existing criteria are recommended.

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43.30.Ma	Acoustics of sediments; ice covers, viscoelastic media; seismic underwater acoustics
43.30.Pc	Ocean parameter estimation by acoustical methods; remote sensing; imaging, inversion, acoustic tomography
43.30.Re	Signal coherence or fluctuation due to sound propagation/scattering in the ocean
43.60.Fg	Acoustic array systems and processing, beam-forming

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Investigations of indoor noise criteria systems based on human perception and task performance (A)

Erica Eileen Bowden

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1754-1754 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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Several noise criteria methods commonly used in architectural acoustics have been quantitatively related to noise perception and task performance under a variety of ventilation systems-induced background noise conditions. Noise criteria, balanced noise criteria, room criteria, room criteria mark II, and A-weighted equivalent sound pressure level were examined. The first phase of the project included noise conditions controlled to be non-time-varying and nontonal, with neutral, rumbly, roaring, or hissy characteristics. An intermediate study examined exposure time length and types of performance tasks used. The final phase included noise conditions containing various levels of discrete tones from 120 to 595 Hz. Under each noise, subjects completed performance tasks and perception questionnaires. Results indicate task performance was significantly affected by perception of noise, but this relationship was not fully demonstrated by the criteria systems analyzed. The five criteria were generally well suited in describing subjective loudness perception, but some discrepancies in criteria spectral quality ratings and subjective perception existed. Finally, perception of annoyance changed based on the frequency and prominence of tones in noise, but these changes were not reflected in the criteria level or spectral quality ratings. Modifications to the existing criteria are recommended.

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43.50.Ba

Noisiness: rating methods and criteria

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The Physics of Birdsong (Biological and Medical Physics, Biomedical Engineering)

Gabriel B. Mindlin and Rodrigo Laje

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1755-1755 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.10.Hj	Books and book reviews
43.80.Ka	Sound production by animals: mechanisms, characteristics, populations, biosonar

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Communications Acoustics

Jens Blauert and Douglas Brungart, Reviewer

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1756-1756 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.10.Hj

Books and book reviews

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Electronic thermal management (P)

Ioan Sauciuc and Gregory M. Chrysler

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1757-1757 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.25.Nm

Acoustic streaming

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3‐D forward looking sonar with fixed frame of reference for navigation (P)

Matthew Jason Zimmerman and James Henry Miller

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1757-1757 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.30.Pc

Ocean parameter estimation by acoustical methods; remote sensing; imaging, inversion, acoustic tomography

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Apparatus and methods for testing acoustic probes and systems (P)

James M. Gessert

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1757-1757 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.35.Yb

Ultrasonic instrumentation and measurement techniques

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Standoff holder and standoff pad for ultrasound probe (P)

Martin Edmund Wendelken, Elmwood Park, and Charles Pope

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1758-1758 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.35.Yb

Ultrasonic instrumentation and measurement techniques

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Composite material for piezoelectric transduction (P)

Masao Sato

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1758-1758 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ar

Transducing principles, materials, and structures: general

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Traverse shear mode piezoelectric chemical sensor (P)

Michael Thompson and Gordon L. Hayward

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1758-1758 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ar

Transducing principles, materials, and structures: general

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Piezoelectric transformer, piezoelectric transformer unit, inverter circuit, light emission control device, and liquid crystal display device (P)

Hiroshi Nakatsuka

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1758-1758 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ar

Transducing principles, materials, and structures: general

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MEMS scanning mirror with tunable natural frequency (P)

Ting‐Tung Kuo

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1759-1759 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Bs

Electrostatic transducers

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Small ultrasound transducers (P)

James B. Seward

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1759-1759 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Fx

Piezoelectric and ferroelectric transducers

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Speaker (P)

Masataka Ueki

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1759-1759 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ja

Loudspeakers and horns, practical sound sources

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Loudspeakers (P)

Neil Harris and Graham Bank

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1759-1759 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ja

Loudspeakers and horns, practical sound sources

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Speaker device (P)

Hideaki Sugiura

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1759-1759 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ja

Loudspeakers and horns, practical sound sources

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Rectangular panel‐form loudspeaker and its radiating panel (P)

Tai‐Yan Kam

J. Acoust. Soc. Am. Volume 120, Issue 4, pp. 1760-1760 (2006); (1 page)

Online Publication Date: 06 Oct 2006

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43.38.Ja

Loudspeakers and horns, practical sound sources

Journal of the Acoustical Society of America

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Oct 2006

Volume 120, Issue 4, pp. 1743-EL54

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