Dieter Ennemoser, violin maker and acoustic researcher, developed a startling new theory of sound perception with applications on instruments, Hifi and loudspeakers.

Scientific Applications & Research Associates, (SARA) Inc. SARA performs cutting-edge, multi-disciplinary technology development in areas with high potential - both in scientific achievement and market impact - and transforms the developed ...

Modal Analysis applications use computer modelling to determine vibration modes or shapes. Modal analysis provides solutions for building or structural component vibration problems.

All aspects of sound; music, human hearing, sound system design. Room acoustics. A non-mathematical description of sound, and also a rigorous mathematical derivation based on molecular statistics.

HOME WHAT'S NEW ABOUT ACOUSTIC EMISSION DECI TRANSDUCERS & INSTRUMENTATION DECI NEWSLETTERS AND REPORTS UPCOMING CONFERENCES PUBLICATIONS BY H.L. DUNEGAN LOG-IN: COMMENTS & QUESTIONS Prepared for presentation at 6th Conference on AE/MS Activity in Geologic Structures and Materials Pennsylvania State University June 11-13, 1996. PREDICTION OF EARTHQUAKES WITH AE/MS WHY NOT H.L. Dunegan May, ...

A key part of NASA's aeronautics research is reducing noise to make helicopters and tiltrotors more acceptable to the public. The objective of the In-Flight Rotorcraft Acoustics Program (IRAP) is to acquire rotorcraft noise data in flight for comparison to wind tunnel data. The type of noise of concern is blade-vortex-interaction, or BVI, noise.

WEIRD SCIENCE | GOOD STUFF | NEW STUFF | HELP! SOUND SUCKER, ACOUSTIC ILLUSION (c)1997 William Beaty The device below is a good sound absorber. It probably absorbs certain frequencies much better than others. At first glance you'd think this would be boring. However, the psychological effects are VERY INTERESTING. When you hold the thing up near one ear, you feel as if: * the air pressure is ...