Scroll To Top   70 volt line See constant-voltage.  SAA
(semantic audio analysis) The automatic extraction of meaning
from audio and the means for representing it, typically as
metadata.  sabin A non-metric unit of sound absorption used in
acoustical engineering. One sabin is the sound absorption of one
square foot (or one square meter -- a metric sabin) of a
perfectly absorbing surface--such as an open window. The sound
absorption of a wall or some other surface is the area of the
surface, in square feet, multiplied by a coefficient that
depends on the material of the surface and on the frequency of
the sound. These coefficients are carefully measured and
tabulated. The unit honors Wallace Sabine (see below). Sabine
used this unit, which he called the open window unit (owu), as
early as 1911. [From Rowlett's How Many? A Dictionary of Units
of Measurement]  Sabine, Wallace Clement Ware (1868-1919)
American physicist and Harvard University professor who founded
the systematic study of acoustics around 1895. Re