Difference between revisions of "3D audio"
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==3D Audio and Virtual Reality== | ==3D Audio and Virtual Reality== | ||
| − | + | In [[Virtual Reality]], 3D audio is very important for creating realistic and [[immersive]] experiences. [[Oculus VR]] licensed a 3D Audio engine called [[RealSpace 3D]] and demonstrated its practical use at CES 2015. The solution relies on a pair of adjustable on-ear headphones that are connected to the rest of the device. Those who were lucky to try it out said that it helped significantly increase the overall immersion. Chief Scientist at Oculus, [[Michael Abrash]], said that 3D sound is not an addition to VR but a multiplier. Unlike regular video games, Virtual Reality is able to use 3D audio cues to help players orient themselves in the environment and experience a complete immersion. Our 2D monitors have a limited field-of-view and lack the necessary information about distance, which means that while we may know from which direction is a certain sound coming, we would probably not be able to precisely estimate how far from us is its source. | |
==3D Audio Engines== | ==3D Audio Engines== | ||
Revision as of 06:26, 15 October 2015
This page is a stub, please expand it if you have more information.- See also: VR audio
Binaural Audio
The method for recording and reproducing 3D audio goes back to the late 19th century.[1] The simplest form of binaural recording, as this method is called, requires two microphones placed roughly in the same distance as is the average position of human ears. There are, of course, many additional factors that have to be considered in order to produce a high-quality recording. Some of these include the shape of the outer and inner ear, the so-called head shadow, or a proper frequency response compensation in the playback device.
The playback device is of special significance since binaural audio requires headphones or a distinct stereo setup to work properly. Regular speakers exhibit various degrees of so-called crosstalk, which means that sound from speaker A mixes with sound from speaker B and cancels the binaural effect out. Speakers need to be placed closely together at 10-30 degrees for crosstalk to be minimized. Headphones do not have this problem and the only real requirement is a proper sound isolation. An open design shows slightly better acoustic properties for binaural audio, but this is actually quite negligible when we consider just how big differences in anatomy can be found, for example, just between males and females. A single pair of headphones simply cannot fit perfectly on everybody. The good news is that this is not really a problem because the effect is very convincing even with just an average pair of earbuds or headphones.
3D Audio and Virtual Reality
In Virtual Reality, 3D audio is very important for creating realistic and immersive experiences. Oculus VR licensed a 3D Audio engine called RealSpace 3D and demonstrated its practical use at CES 2015. The solution relies on a pair of adjustable on-ear headphones that are connected to the rest of the device. Those who were lucky to try it out said that it helped significantly increase the overall immersion. Chief Scientist at Oculus, Michael Abrash, said that 3D sound is not an addition to VR but a multiplier. Unlike regular video games, Virtual Reality is able to use 3D audio cues to help players orient themselves in the environment and experience a complete immersion. Our 2D monitors have a limited field-of-view and lack the necessary information about distance, which means that while we may know from which direction is a certain sound coming, we would probably not be able to precisely estimate how far from us is its source.
3D Audio Engines
References
- ↑ http://www.theverge.com/2015/2/12/8021733/3d-audio-3dio-binaural-immersive-vr-sound-times-square-new-york
