Page 7 - April 2008

Acoustics Today
A Publication of the Acoustical Society of America
Volume 4, Issue 2 April 2008
Cover: An infrared photograph of the launch of an Orion rocket carrying approximately 30 kg of high explosive. The rocket was launched in the pre-dawn hours from the White Sands Missile Range in southern New Mexico. The explo- sives were detonated at an altitude of 31 km as the rocket was on the downward arc of its ballistic trajectory. The time-indexed infrared imagery provided corroboration of launch and detonation times. Image: Milton Garcés, Infrasound Laboratory of the University of Hawaii (ISLA).
7 From the Editor—Dick Stern Departments:
8 The Vice President’s View—George V. Frisk Articles:
9 High-altitude Infrasound Calibration Experiments— Eugene T. Herrin, Henry E. Bass, Bill Andre, Robert L. Woodward, Douglas P. Drob, Michael A. H. Hedlin, Milton A. Garcés, Paul W. Golden, David E. Norris, Catherine de Groot-Hedlin, Kristoffer T. Walker, Curt A. L. Szuberla, Rodney W. Whitaker, and F. Douglas Shields Small explosive charges detonated in the Earth’s strato- sphere efficiently generate low frequency acoustic sig- nals that can be observed nearly 1000 km away.
22 Coming to Terms with the Effects of Ocean Noise on Marine Animals—Mardi C. Hastings
Although many questions remain, research during the last two decades has greatly enhanced understanding of acoustic impacts on marine life.
35 Noise as an Indicator of Quality of Life: Advances in Measurement of Noise and Noise Effects on Humans and Animals in the Environment—
Ann Bowles and Brigitte Schulte-Fortkamp
Whether noise affects humans or animals, the brain often mitigates the effect.
40 Standards: How to Assess Hearing Protection Effectiveness: What is New in ANSI/ASA S12.68— William J. Murphy
The ANSI/ASA S12.68 standard describes three meth- ods of providing relevant and useful estimates of a per- son’s hearing exposure when using hearing protection.
43 Student Council: An Overview—Michael S. Canney 45 National News—Elaine Moran
Acoustical news from around the country.
51 International News—Walter G. Mayer Acoustical news from around the world.
53 Books and Publications—Dick Stern
New and recent publications, reports, and brochures on acoustics.
55 Instrumentation—Dick Stern
New and recent acoustic instrumentation and news about acoustic instrument manufacturers.
57 Passings—Dick Stern
A farewell to colleagues—Joseph Pope
Business Directory
58 Business card advertisements
59 Classified
Classified advertisements, including positions offered and positions desired.
62 Index to Advertisers
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