3-D positional sound | Article about 3-D positional sound by The Free Dictionary
3D audio (redirected from 3-D positional sound)
3D audio(1) A variety of techniques that simulate surround sound from a single pair of stereo speakers (left and right channels). Also called "virtual surround sound" and employed in sound cards to enhance gaming, 3D audio uses signal processing techniques that simulate sounds coming from all directions. See OpenAL, Dolby Digital and Auro-3D.
(2) (3D Audio) An MPEG-H standard for surround sound audio delivery. 3D Audio supports object-based audio and up to 128 virtual and 64 physical channels. It also supports higher-order ambiosonics (HOA) for sounds above and below the listener. 3D Audio handles traditional speaker layouts such as 5.1 and 7.1, as well as 22.2, which includes 10 middle, 9 upper and 3 lower channels plus two subwoofers. See object-based audio, surround sound and MPEG-H.
References in periodicals archive
Meanwhile, various online gaming sites have been giving "Delta Force" rave reviews that exalt its unique multiplayer aspects, the 3-D positional sound
and unrivaled expansive outdoor environments.
3-D positional sound in Delta Force increases a player's situational awareness, adding to the game's realism.
The 3-D positional sound forces the player to rely on listening for cues while conducting a mission.
The device supports Microsoft's DirectSound (2D and 3D) and Aureal's HRTF (Head Related Transfer Function) 3-D positional sound
standards as well as the AC'97 audio system specification.
The OTI-611 incorporates support for the following latest PC audio standards: wavetable synthesis and multichannel digital audio mixing; 3-D positional sound
and support for multiple audio and communications codecs.