3D audio

(redirected from 3D 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 ?
Environmental Audio combines traditional 3D positional sound with room acoustics, voice pitch shifting, reverb and echo to give the most immersive sound available on a PC.
An on-chip 512Kbytes buffer memory in the AS3532 music player IC allows single chip support of all key audio formats, compressed, lossless and high definition, polyphonic sequenced content, wavetable synthesizer, 3D positional sound, virtualizer engines and other digital audio effects.
3D Positional Sound - Recently deployed in Second Life, users can hear other users in relation to where they are positioned - left, right, behind, front.
0 GB Hard Drive 24X Max CD Rom 2X AGP 8MB ATI RAGE Mobility M1 3d video card 3D Positional Sound w/Wavetable sound card Internal PCI 56K Capable v.
The ACS56MW is engineered with quad inputs for games providing rear channel output from specified 3D positional sound cards.
Rounding out the stereo system are superb Altec Lansing(R) SoundGuide speakers with 3D positional sound capability, which are positioned at the sides of the display for crisp and direct sound to the user.
The ACS54 is engineered with quad inputs for games providing rear channel output from specified 3D positional sound cards.
Fully supporting Environmental Audio Extensions (EAX(tm)) in today's hottest 3D games, FM801's 4/6-channel solution truly enhances and creates more realistic and accurate 3D positional sound effect for game players.
We chose CRL's 3D positional sound technology because of its extensive game developer support and superior audio quality.
Possible configurations include: DVD2 drive, Intel Pentium II MMX processor; 3D positional sound, 3D AGP graphics, hardware DVD decoder, choice of 56K modem or high speed network adapter, Dolby Digital(tm) sound effects, Dolby Prologic(tm) sound effects, wireless keyboard, hand-held remote control, SDRAM main memory; PCI expansion slots, and 4MB on-board video, hi-speed hard-drives, and Windows software.
The 4DWAVE-DX, a single-purpose audio device, provides 64 voices with advanced sound effects, digital joystick and enhanced audio capabilities such as 3D positional sound.
This advanced PCI system offers multimedia functions including 3D positional sound, wavetable synthesis and Dolby Digital (AC-3) under the Microsoft DirectSound 5.