3D audio

(redirected from 3-D 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 ?
3-D sound technology in general is based on the principle that the ear can be fooled by the use of certain audio cues.
For fighter pilots, 3-D sound can be used to pinpoint locations of friendly and hostile airplanes.
By correcting distortions found in current digital recording technology, HDCD A/D conversion, dynamic digital filtering, dither and amplitude encoding/ decoding provide extended dynamic range, a focused 3-D sound stage, and extremely natural musical timbre.
30, 1997, will receive a free matching VAIO keybuperior multimedia A/V solution, combining a crisp, bright display with an integrated 3-D sound system.
New standard in PC audio delivers true positional 3-D sound,
gaming systems come complete with rich multimedia content and compelling, high-resolution, 3-dimensional realism by featuring standard components such as S3 ViRGE graphics and video acceleration, 3-D sound, 24-watt Altec Lansing speakers, a 40-watt subwoofer and a Logitech Wingman Extreme Joystick.
Among many of enReality's other features is the ability to transport, from one part of the world to another, a floor plan view of the world, as well as feedback on the users's current location and orientation, in addition to fast rendering, 3-D sound, and very high image quality.
Fulfilling the requirements for the digital controller functions defined by the PC and semiconductor industry's recently announced AC '97 audio system specification, the OTI-611 is an audio hardware accelerator for Microsoft's DirectSound standard and will support future 3-D sound standards.
Since `In The System' was authored and delivered on Pentium Pro architecture, we were able to harness the power on the client side with 3-D sound and unrivaled speed in running Java.