Acoustics Today

Acoustics Today A publication of the Acoustical Society of America

Acoustics Today A publication of the Acoustical Society of America This Issue : Acoustical Horizontal Array Coherence Lengths and the Carey Number How Does Wind Turbine Noise A ff ect People ?

Boundary Conditions for Room Acoustic Simulations

Research on room acoustic simulation focuses on more accurate modeling of wave effects in rooms. Today, also wave models (e.g., the boundary element method and the finite differences in time domain technique) can be used for higher frequencies, thus, in the geometrical acoustics (GA) domain. Simulations in architectural acoustics are powerful tools but their reliability depends on the input dat...

Acoustics of ancient Greek and Roman theatres in use today

In the Mediteranian area a large number of open, ancient Greek and Roman theatres are still today facing a busy schedule of performances including both classical and contemporary works of dance, drama, concerts, and opera. During the EU funded "Erato" project and a subsequent master thesis project, extensive measurement data have been collected from four well preserved theatres, which represent...

Harvey Fletcher's role in the creation of communication acoustics.

As the reader might appreciate after reading Fletcher's 1953 views, in 1918 Fletcher had taken on the toughest problem of all: to quantify and model how we hear and understand speech. This understanding allowed AT&T Bell Labs engineers to develop the necessary specifications of what was to become the largest telephone network in the world. The problems that Fletcher and his colleagues studied w...