loudspeakers produce a diffuse sound field that will not sound harsh or
blaring anywhere over their broad coverage area. Listeners seldom perceive a
source of sound, but rather a field of sound that appears to come from
everywhere. Voice announcements and music are more pleasing and less
intrusive than with conventional loudspeakers, and fewer speakers are needed
to cover a given area. Fewer sources of sound mean simpler sound systems and
fewer problems in acoustically difficult spaces.