Page 7 - Fall 2007

Acoustics Today
A Publication of the Acoustical Society of America
Volume 3, Issue 4 October 2007
Cover: Visual stimuli are presented on a computer monitor in front of two groups of subjects along with auditory speech stimuli from a centrally located computer speaker placed directly below the monitor. Each subject was placed in a chair 25 inches from the computer monitor. The headband with the magnetic head tracking sensor was placed on each participant’s head. To compare the amount of visual influence between groups on the audiovisual speech trials, only those trials on which participants’ gazes were on the face of the speaker were assessed. The audio and visual stim- uli that were presented simultaneously did not always match.
6 Acoustics’08 Paris Articles:
8 Auditory and Audiovisual Speech Perception in Children with Autism Spectrum Disorders—
Julia R. Irwin
Visual tracking during audiovisual speech perception allows an assessment of whether individuals with autism spectrum disorder show difficulty in extracting phonetic information from the face, or exhibit a more fundamen- tal deficit in the capacity for audiovisual integration.
16 Modern Music-Playing Devices as Hearing Health Risks—Brenda L. Lonsbury-Martin and Glen K. Martin Do personal digital music-players cause hearing loss?
21 Progress in Sound Masking—Robert C. Chanaud Sound masking is the most cost-effective tool for pro- viding acoustical privacy, and the new products and techniques discussed further improve its performance and reputation.
Departments:
27 Technical Committee on Psychological and Physiological Acoustics: An Adjustable Auditory System—Elizabeth A. Strickland and Skyler G. Jennings The auditory system may use a reflex to adjust to differ- ent levels of background noise.
30 Standards: Audiologists and ANSI Standards— Laura Ann Wilber
Although there is a reason for each ANSI standard in audiology, only some appear to be directly related to audiologic practice.
34 National News—Elaine Moran
Acoustical news from around the country.
39 International News—Walter G. Mayer Acoustical news from around the world.
41 Books and Publications—Dick Stern
New and recent publications, reports, and brochures on acoustics.
42 Instrumentation—Dick Stern
New and recent acoustic instrumentation and news about acoustic instrument manufacturers.
44 Passings—Dick Stern
A farewell to colleagues—J. M. Eargle, H. E. von Gierke
Business Directory
53 Business card advertisements
55 Classified
Classified advertisements, including positions offered and positions desired
56 Index to Advertisers
Table of Contents 5