Computing (FOLDOC) dictionary
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hardware (Aureal 3-Dimensional?) A technology developed by
that delivers sound with a three-dimensional effect
through two speakers. Many modern sound cards
and PC games
now support this feature.
it only requires two speakers, while surround sound typically
requires four or five. It is sometimes less convincing than
environments. For example, PC games in which sounds often
move from one speaker to another favour A3D, while
pre-recorded video favours surround sound.