• Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Journal of the Acoustical Society of America

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

Nov 2008

Volume 124, Issue 5, pp. 2647-EL333

Page 1 of 6 Pages Next Page | Jump to Page
back to top
RSS Feeds

New Fellows of the Acoustical Society of America

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2647-2647 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.05.Ky Members and membership lists, personal notes, fellows

Annual Reports of Technical Committees

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2647-2650 (2008); (4 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.05.Nb Technical committee activities; Technical Council

USA Meetings Calendar

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2650-2651 (2008); (2 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.05.Hw Meetings
43.10.Ce Conferences, lectures, and announcements (not of the Acoustical Society of America)

Cumulative Indexes to the Journal of the Acoustical Society of America

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2651-2651 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.05.Gv Publications, ARLO, Echoes, ASA Web page, electronic archives and references

Revision List

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2651-2655 (2008); (5 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.05.Ky Members and membership lists, personal notes, fellows
back to top
RSS Feeds

ACOUSTICAL STANDARDS NEWS

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2656-2663 (2008); (8 pages)

Full Text: Read Online (HTML) | Download PDF

Abstract Unavailable
Show PACS
43.20.Bi Mathematical theory of wave propagation
back to top
RSS Feeds

Geometric and Boundary Element Method Simulations of Acoustic Reflections From Rough, Finite, or Nonplanar Surfaces (A)

Jonathan Rathsam

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2664-2664 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Show Abstract
This dissertation seeks to advance the current state of computer-based sound field simulations for room acoustics. Acoustical designers commonly use geometric simulations for quick sound field predictions. A geometric simulation of reflections from rough surfaces is still under refinement. The first project in this dissertation investigates the scattering coefficient, which quantifies the degree of diffuse reflection from rough surfaces. The main result is that predicted reverberation time varies inversely with scattering coefficient if the sound field is nondiffuse. Geometric acoustics is a high-frequency approximation to wave acoustics. Acoustical designers encounter the limits of geometric acoustics when simulating the low-frequency response from finite suspended reflector panels. The second project in this dissertation uses the rigorous boundary element method (BEM) to develop an improved low-frequency radiation model for smooth finite reflectors. The improved low-frequency model is suggested in two forms for implementation in geometric simulations. The final project in this dissertation uses BEM to investigate the sound field around nonplanar reflectors. The author has added convex edges rounded away from the source side of a finite smooth reflector to minimize coloration of reflections caused by boundary-wave interference. [Copies may be obtained from Jonathan Rathsam, jrathsam@gmail.com]
Show PACS
43.55.Ka Computer simulation of acoustics in enclosures, modeling
43.55.Br Room acoustics: theory and experiment; reverberation, normal modes, diffusion, transient and steady-state response

Investigations of Incorporating Source Directivity Into Room Acoustics Computer Models to Improve Auralizations (A)

Michelle C. Vigeant

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2664-2664 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Show Abstract
Room acoustics computer modeling and auralizations are useful tools when designing or modifying acoustically sensitive spaces. In this dissertation, the input parameter of source directivity has been studied in great detail to determine, first, its effect in room acoustics computer models and, second, how to better incorporate the directional source characteristics to improve auralizations. The room acoustics computer model was initially validated in terms of accurately incorporating the input source directivity. The next study demonstrated that using directional sources over an omnidirectional source in room acoustics computer models produces significant differences both in terms of calculated room acoustics parameters and auralizations. A recently proposed technique for creating auralizations using multichannel anechoic recordings has been examined with numerous subjective studies, applied to both solo instruments and an orchestra. Through these studies, this process was shown to be effective in terms of improving the realism and source width of the auralizations in a number of cases and also modeling different source orientations. In addition, this approach was applied to modeling an entire orchestra with individual sources, in three different configurations, for the first time. This method shows great promise as a new technique for auralizing both solo instruments and an entire orchestra. [Copies may be obtained from Michelle Vigeant, michelle.vigeant@gmail.com]
Show PACS
43.55.Ka Computer simulation of acoustics in enclosures, modeling
43.55.Hy Subjective effects in room acoustics, speech in rooms
back to top
RSS Feeds

Cochlear Hearing Loss: Physiological, Psychological and Technical Issues, Second Edition (Wiley Series in Human Communication Science)

Brian C. J. Moore and Kathryn H. Arehart, Reviewer

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2665-2666 (2008); (2 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.10.Hj Books and book reviews
43.66.Lj Perceptual effects of sound
43.66.Ts Auditory prostheses, hearing aids
43.66.Sr Deafness, audiometry, aging effects
back to top
RSS Feeds

Thermal-acoustic scanning systems and methods (P)

Robert A. Falk

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2667-2667 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.35.Sx Acoustooptical effects, optoacoustics, acoustical visualization, acoustical microscopy, and acoustical holography

Vibrator for bone‐conduction hearing (P)

Patrik Westerkull

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2667-2667 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Dv Electromagnetic and electrodynamic transducers

Acoustic resonator (P)

Hendrikus A. C. Tilmans and Wanling Pan

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2667-2667 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Fx Piezoelectric and ferroelectric transducers

Absolute pressure sensor (P)

Itzhak Sapir

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2668-2668 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Fx Piezoelectric and ferroelectric transducers

Loudspeaker lead wire management system (P)

Lucio Proni

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2668-2668 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ja Loudspeakers and horns, practical sound sources

Speaker system having a front speaker integrated with a reflection‐type surround speaker (P)

Jin Sub Lee

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2668-2669 (2008); (2 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ja Loudspeakers and horns, practical sound sources

Speaker assembly with aiming device (P)

Barron Ferrell

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2669-2669 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ja Loudspeakers and horns, practical sound sources

Frame for speaker device and speaker device (P)

Hiromitsu Sasaki and Yutaka Moriyama

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2669-2669 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ja Loudspeakers and horns, practical sound sources

Speaker device (P)

Koji Maekawa and Hiroyuki Dohi

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2669-2669 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ja Loudspeakers and horns, practical sound sources

Loudspeaker with inverted cone (P)

Jozef Arnold Frans Baeten

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2669-2669 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ja Loudspeakers and horns, practical sound sources

System for limiting loudspeaker displacement (P)

Andrew Bright

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2670-2670 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Lc Amplifiers, attenuators, and audio controls

System and method for minimizing DC offset in outputs of audio power amplifiers (P)

L. Dexter Bates

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2670-2670 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Lc Amplifiers, attenuators, and audio controls

Semiconductor integrated circuit and amplifier for suppressing pop sound while minimizing voltage transition settling time (P)

Katsuhiko Aisu

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2670-2670 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Lc Amplifiers, attenuators, and audio controls

Personal audio visual system (P)

Bruce D. Hirschhorn

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2670-2671 (2008); (2 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Md Sound recording and reproducing systems, general concepts

Sound generating hand wear (P)

Yourik Atakhanian

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2671-2671 (2008); (1 page)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Ne Mechanical, optical, and photographic recording and reproducing systems

Mobile telephone (P)

Mamoru Yoshida

J. Acoust. Soc. Am. Volume 124, Issue 5, pp. 2671-2672 (2008); (2 pages)

Online Publication Date: 10 Nov 2008

Full Text: | Download PDF

Abstract Unavailable
Show PACS
43.38.Si Telephones, earphones, sound power telephones, and intercommunication systems
Page 1 of 6 Pages Next Page | Jump to Page
Close

Home Publications Meetings Contact ASA Site Map Back to Top

Copyright © Acoustical Society of America

close