3D audio

(redirected from 3-D sound)

3D audio

(1) An umbrella term for surround sound systems that add a height channel. Also called "virtual surround sound" and "Immersive Sound," sound cards may use signal processing to simulate a 3D audio experience in headphones. See OpenAL and Auro-3D.

(2) (3D Audio) An MPEG-H standard for surround sound recording and playback. 3D Audio supports a mix of channel-based audio, object-based audio and Higher Order Ambisonics (HOA) with up to 64 speaker channels. See surround sound and MPEG-H.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
It is also worth noting that Muller's invention uses the wave field synthesis technique that builds 3-D sound fields to either cancel or reinforce sound waves with constructive or destructive interference, to place sound at pinpoint locations.
Among the challenges to creating 3-D sound fields is that each person's spatial sound cues are influenced by individual factors, such as the shape and position of the person's ears, Algazi said.
For fighter pilots, 3-D sound can be used to pinpoint locations of friendly and hostile airplanes.
Air Force researchers are continuing work on 3-D sound at the Biocommunications Lab, Wright-Patterson Air Force Base, OH.
"With 3-D sound, the signal coming into your headphones appears to be outside your head [somewhere] in space.
The primary reason for developing 3-D sound is to help fighter pilots.
But 3-D sound has a number of uses outside of the military.
For the visually handicapped, a 3-D sound system could give them a higher degree of freedom through a new and more realistic navigation system.
By knowing your current position on a map, you can use 3-D sound to follow a signal, such as a quiet beep, to reach the next desired point," McKinley says.