Page 7 - January 2006

Acoustics Today
A Publication of the Acoustical Society of America
Volume 2, Issue 1 January 2006
Cover: Aerial photograph of a plume from Mount Saint Helens on 8 March 2005. The photo was taken from the southwest of the volcano by John Pallister (USGS). In this event the ash-laden vol- canic plume reached a height of 35,000 feet, with ash falling on communities up to 100 km to the east of the volcano. The trace shown at the bottom of the image is an infrasound recording collected at an array located 13 km north of the volcano. The event lasted for approximately 30 minutes. Image: USGS/Cascades Volcano Observatory.
VOLUME 2, ISSUE 1 JANUARY 2006
Acoustics Today
Infrasound, Supersonics, Inventions, Noise, Echoes, and more
A publication of the Acoustical Society of America
Mount St. Helens speaks...
7 From the Executive Director: Charles E. Schmid Articles:
9 Infrasound—Henry E. Bass, Joydeep Bhattacharyya, Milton A. Garcés, Michael Hedlin, John V. Olson, and Robert L. Woodward
The establishment of the International Monitoring System has led to an infrasound renaissance.
20 Lowering the Boom—Victor W. Sparrow
Ongoing research activities and a report of a recent ASA cosponsored conference concerning sonic boom.
29 Not Invented Here—Timothy L. O’Brien
Reprinted with permission of the New York Times Co.—An article about James E. West.
33 Finding Connections Among Indoor Noise Criteria, Human Perception, and Worker Performance—
Lily M. Wang and Erica E. Bowden
An extensive study is being conducted to learn how indoor noise criteria systems are related to occupant perception and performance under a variety of back- ground noise conditions.
Departments:
38 ECHOES
48 Standards News: Working Group on Passive Acoustic Monitoring Standard—Aaron M. Thode
Passive Acoustic Monitoring for Marine Mammal Mitigation for Seismic Surveys.
51 Speech Communication: The Human Voice—
Jody E. Kreiman, Patricia A. Keating, and David A. Berry One area of recent cross-disciplinary emphasis within the Speech Communication Technical Committee is the study of the human voice.
53 Patent Talk: Protecting Computer Software: Patent or Copyright—D. Lloyd Rice and Gregory Aharonian
55 National News: Elaine Moran
Acoustical news from around the country.
59 International News: Walter G. Mayer Acoustical news from around the world.
61 The Library: Dick Stern
New and recent publications, reports, and brochures on acoustics.
62 The Lab: Dick Stern
New and recent acoustic instrumentation and news about acoustic instrument manufacturers.
Business Directory
63 Business card advertisements 64 Index to Advertisers
Table of Contents 5