Experimental and theoretical results are presented for nonlinear dispersive waveguide modes in an acoustic duct. We report observations of a localized envelope which splits into two disturbances moving with two different velocities of propagation. As a consequence, we predict that if a signal is amplitude modulated at the source, spatial beating between the two disturbances will occur, and at periodic positions in space the signal will become frequency modulated. These results can have...
Topics: Acoustics, Nonlinear acoustics
54
54
Oct 9, 2015
10/15
by
Winfrey, Richard Cameron.
texts
eye 54
favorite 0
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Title from cover
Topic: ACOUSTICS.
Title from cover
Topic: ACOUSTICS.
727
727
Dec 14, 2015
12/15
by
Encyclopedia Britannica
movies
eye 727
favorite 18
comment 1
Compares sound waves with water waves, provides examples of echoes and explains how they affect acoustics indoors, demonstrates effects of different wall surfaces upon the reflection of sounds, portrays the mechanics of our hearing process, dramatizes the range of the human voice, reveals the effects of eliminating certain vibrational frequencies, and identifies ultrasonics. We digitized and uploaded this film from the A/V Geeks Archives. Email us at footage@avgeeks.com if you have questions...
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Topic: acoustics
pages 22-29 : 23 cm
Topic: Acoustics
5
5.0
Jul 26, 2021
07/21
by
European Conference on Underwater Acoustics (5th : 2000 : Villeurbanne, France)
texts
eye 5
favorite 0
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xxii, 746, vi pages : 26 cm
Topics: Underwater acoustics -- Congresses, Underwater acoustics
The Royal College of Surgeons of England
Topic: Acoustics
273
273
May 27, 2008
05/08
by
Lachèz, Théodore
texts
eye 273
favorite 0
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Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Architectural acoustics, Lighting, Architectural acoustics, Lighting
Source: http://books.google.com/books?id=Kl7erUO_0lcC&oe=UTF-8
110
110
Jan 20, 2020
01/20
by
Thompson, Emily Ann
texts
eye 110
favorite 1
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ix, 500 p. : 24 cm
Topics: Architectural acoustics, Music -- Acoustics and physics
Source: removedNEL
The purpose of this study was to evaluate the performance of passive, omni-directional receivers as means to detect vocalizing Odontocetes. It was necessary to establish probability of detection as a function of a) signal to noise ratio and b) probability of false alarm. For this purpose, a model of the probability distribution function of the detector output was derived from experimental data. For the experiment a series of short duration digital recordings of selected Odontocete vocalizations...
Topics: Oceanography, Underwater acoustics, Marine mammals, Acoustics
307
307
May 5, 2008
05/08
by
Lachèz, Théodore
texts
eye 307
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Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Architectural acoustics, Lighting, Architectural acoustics, Lighting
Source: http://books.google.com/books?id=MjoIAAAAIAAJ&oe=UTF-8
30
30
Aug 6, 2015
08/15
by
Albers, Vernon Martin, 1902-
texts
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Includes bibliographical references
Topic: Underwater acoustics
3
3.0
texts
eye 3
favorite 1
comment 0
x, 285 p. : 25 cm
Topic: Underwater acoustics
381
381
Jan 24, 2009
01/09
by
Kelly, Eugene Henri
texts
eye 381
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topic: Architectural acoustics
Source: http://books.google.com/books?id=Dgg4AAAAMAAJ&oe=UTF-8
66
66
Nov 8, 2016
11/16
by
Fath, Jack M.
texts
eye 66
favorite 0
comment 0
Topic: Acoustics--Testing
14
Topic: Architectural acoustics
1,142
1.1K
Nov 13, 2012
11/12
by
Walter Stewart George; Bruce Lindsay Robert
texts
eye 1,142
favorite 0
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Topics: acoustics, physics
"Originally issued as Division 6, volume 8, N[ational] D[efense] R[esearch] C[ommittee] summary technical reports."
Topic: Underwater acoustics
161
161
Jan 20, 2016
01/16
by
Swan, Clifford Melville; Johns-Manville Corporation (1926-1981)
texts
eye 161
favorite 1
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Reprinted from the Journal of the American Institute of Architects, December 1919
Topic: Architectural acoustics
7 p. : 23 cm
Topics: Sound, Acoustics
Acoustics is a field of study not easily understood and laboratory experiments which might shed light on problems in acoustics are complex and expensive to accomplish. Computers have become a valuable tool in many fields of study in order to examine problems which would be difficult and expensive, if not impossible to study using traditional methods. This thesis is an extension of work previously completed by Thomas Green to support instruction utilizing the text, Fundamentals of Acoustics,...
Topics: acoustics, MATLAB
26
Topic: Architectural acoustics
California Digital Library
1,846
1.8K
Jul 23, 2007
07/07
by
Swan, Clifford Melville]; Johns-Manville, H. W., co., New York
texts
eye 1,846
favorite 0
comment 0
24 p
Topic: Architectural acoustics
40
40
texts
eye 40
favorite 5
comment 0
4 v. : 29 cm
Topic: Acoustics -- Encyclopedias
142
142
Jan 20, 2016
01/16
by
Kelly, Eugene Henri
texts
eye 142
favorite 0
comment 0
Includes index
Topic: Architectural acoustics
8
8.0
Jul 16, 2021
07/21
by
Ross, Donald, 1922-
texts
eye 8
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comment 0
xiv, 375 p. : 24 cm
Topic: Underwater acoustics
Technical report for period August 1986 - November 1986--Cover.
Topic: UNDERWATER ACOUSTICS.
16
16
Oct 29, 2021
10/21
by
Cremer, Lothar, 1905-1990
texts
eye 16
favorite 0
comment 0
2 v. : 23 cm
Topic: Architectural acoustics
The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
Topic: Architectural acoustics
California Digital Library
3,893
3.9K
Dec 3, 2008
12/08
by
Sabine, Wallace Clement, 1868-1919
texts
eye 3,893
favorite 2
comment 0
ix, 279 p. 27 cm
Topic: Architectural acoustics
568
568
Apr 4, 2008
04/08
by
Kelly, Eugene Henri
texts
eye 568
favorite 0
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topic: Architectural acoustics
Source: http://books.google.com/books?id=qjkIAAAAIAAJ&oe=UTF-8
663
663
Jan 31, 2008
01/08
by
Swan, Clifford Melville; Johns-Manville, Incorporated
texts
eye 663
favorite 0
comment 0
Book digitized by Google from the library of the University of California and uploaded to the Internet Archive by user tpb.
Topic: Architectural acoustics
Source: http://books.google.com/books?id=WPg_AAAAIAAJ&oe=UTF-8
42
42
Aug 7, 2015
08/15
by
Haines, Gregory
texts
eye 42
favorite 1
comment 0
Bibliography: p. 197-202
Topic: Underwater acoustics
Biodiversity Heritage Library
1,688
1.7K
Oct 23, 2009
10/09
by
Institute on Underwater Acoustics (1961 : London); Albers, Vernon Martin, 1902-; Pennsylvania State University
texts
eye 1,688
favorite 1
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354 p. :
Topic: Underwater acoustics
62
62
Feb 6, 2020
02/20
by
Knudsen, Vern Oliver, 1893-1974
texts
eye 62
favorite 2
comment 0
x, 457 pages 22 cm
Topic: Architectural acoustics
62
62
Oct 7, 2015
10/15
by
Goldstein, A. A.;Russak, Ira Bert.
texts
eye 62
favorite 0
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Technical report for period August 1986 - November 1986--Cover.
Topic: UNDERWATER ACOUSTICS.
From the Applications of Modern Acoustics Series Edited by Moises Levy and Richard Stern
Topics: architecture, acoustics
5,334
5.3K
Dec 10, 2014
12/14
by
Hot Acoustics
Link-budget analysis is commonly applied to satellite and wireless communications for estimating signal-to-noise ratio (SNR) at the receiver. Link-budget analysis considers transmitter power, transmitter antenna gain, channel losses, channel noise, and receiver antenna gain. For underwater signaling, the terms of the sonar equation readily translate to a formulation of the link budget. However, the strong frequency dependence of underwater acoustic propagation requires special consideration,...
Topic: Underwater acoustics
Biodiversity Heritage Library
692
692
Oct 23, 2009
10/09
by
Calderon, M. A; Wenz, G. M; Naval Undersea Warfare Center (U.S.)
texts
eye 692
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Cover title
Topic: Underwater acoustics
600
600
Dec 6, 2009
12/09
by
Sabine, Wallace Clement, 1868-1919
texts
eye 600
favorite 0
comment 0
Book digitized by Google from the library of University of Michigan and uploaded to the Internet Archive by user tpb.
Topic: Architectural acoustics
Source: http://books.google.com/books?id=G25LAAAAMAAJ&oe=UTF-8
Biodiversity Heritage Library
691
691
Sep 10, 2010
09/10
by
Brown, Jay C; Niner, William G; David W. Taylor Model Basin
texts
eye 691
favorite 0
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"July 1963."
Topic: Underwater acoustics
The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
Topic: Architectural acoustics
Biodiversity Heritage Library
791
791
Sep 13, 2010
09/10
by
Hansen, P. G; U.S. Navy Electronics Laboratory (San Diego, Calif.)
texts
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"4 September 1962."
Topic: Underwater acoustics
This research considers the \"Seastar\" concept of an underwater local-area network (LAN) having a central node and multiple peripheral nodes. The concept of operation for the Seastar LAN involves the delivery of large volumes of digital information from the peripheral nodes through direct acoustic communication links to a sophisticated central node for assimilation (e.g., beamforming, fusion). For a design range of 500 meters, link budget analysis in combination with parametric...
Topics: Engineering, Acoustics, Underwater acoustics, Monte Carlo method
148
148
movies
eye 148
favorite 3
comment 0
Acoustics Film Ironically, this film is silent. We digitized and uploaded this film from the Orgone Cinema 16mm Archive. Email us at footage@avgeeks.com if you have questions about the footage and are interested in using it in your project.
Topic: Acoustics Film
I started flowin like two years ago, since then I've been a dedicated emcee. Just started droppin audio's...I'm not really plannin' on makin' rappin a career...this is just one of a most enjoyable hobbies though.
Topic: Keen Acoustics
Seaweb is a wide-area network interconnecting a set of distributed underwater nodes through the use of a DSP-based acoustic communications modem at each node and through-water digital acoustic links between neighboring nodes. As a by-product of Seaweb communications, the distances between neighboring nodes are obtained from the roundtrip acoustic travel-time measurements. If the network is deployed in an ad hoc distribution, or if an established network is disturbed, the locations of the nodes...
Topic: Underwater acoustics
Ocean acoustic recordings were obtained from January through June of 2007 at the site of a former Unites States Navy listening station to the west of Point Sur, California. These data were analyzed to determine the characteristics of the ambient acoustic noise. Direct comparisons to previous studies conducted at the same location revealed a near identical match of the pressure spectrum level in the 50 to 120 Hz frequency band to a 1994-2001 study. Comparison to a 1963-1965 study revealed a 3 to...
Topic: Underwater acoustics
707
707
Nov 13, 2012
11/12
by
George Walter Stewart
texts
eye 707
favorite 1
comment 0
Topics: acoustics, physics
