A3D

(hardware)

(Aureal 3-Dimensional?) A technology developed by Aureal that delivers sound with a three-dimensional effect through two speakers. Many modern sound cards and PC games now support this feature.

A3D differs from the various forms of surround sound in that it only requires two speakers, while surround sound typically requires four or five. It is sometimes less convincing than surround sound but is supposedly better in interactive environments. For example, PC games in which sounds often move from one speaker to another favour A3D, while pre-recorded video favours surround sound.

http://a3d.com/.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

References in periodicals archive

In those cases holding that the occupancy of the motorcycle by the injured person had ceased, the facts supported a conclusion that there were two accidents, i.e., the first when the injured person was thrown to the pavement, and the second when that person was struck by another vehicle unconnected to the first accident (see Swarner, 72 A3d at 650-651; Miller, 156 NH at 122, 931 A2d at 1184; Mid-Century Ins.

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carrier task force had first been considered a real threat to Soviet shore targets in 1954, when intelligence confirmed the presence of nuclear weapons (both bombs and Regulus missiles) on board the carriers, as well as planes that could deliver them (AJ-1s and A3Ds).

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Figures A3a, A3b, A3c, and A3d in the Appendix each demonstrates a Moran scatterplot which provides a disaggregated picture of the nature of spatial autocorrelation for district per capita income in 1998 and 2005, using the BC and ID matrix respectively.

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[partial derivative][lambda] / [partial derivative][c.sub.2] = ([n.sub.22] + [n.sub.23] + [n.sub.32] + [n.sub.33]) [h.sub.'2] / [h.sub.2] - ([n.sub.21] + [n.sub.24] + [n.sub.31] + [n.sub.34]) [h'.sub.2] / 1 - ([h.sub.2] + [n.sub.12] + [n.sub.13] + [n.sub.42] + [n.sub.43]) [f'.sub.2] / [f.sub.2] - ([n.sub.11] + [n.sub.14] + [n.sub.41] + [n.sub.44]) [f'.sub.2] / 1 - [f.sub.2], (A3d)

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[q.sub.B2] = 1/3(-[RNV.sub.B1] + 2[RNV.sub.B2] - [mtc.sub.B1][TQM.sub.1] + 2[mtc.sub.B2][TQM.sub.2]) (A3d)

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