[DigInfo – AkihabraNews.com]
KDDI Labs has developed 3D audio technology that lets you change your listening position in a 3D space. Multiple microphones are used to record the audio and a unique method of audio signal processing, called virtual sound source reproduction, is used to map out the sound in a virtual 3D space in real time. This can generate an unlimited number of listening positions, even in locations where there are no microphones. This technology also lets you change where sounds come from or remove them from the 3D space altogether. …
In the past, to map out the sound in a 3D space required a huge amount of data, this is because it needs to accurately reproduce characteristics such as the dimensions of the room or how the sound enters the listeners ear. Because of this it’s been impossible to do this on a mobile device such as a smartphone. But KDDI has reduced the number of transmission characteristics required to accurately recreate this virtual sound field, and the whole database is now only a few hundred kilobytes in size. This makes the technology usable even on a smartphone. …
Watch the video and see the complete story here: http://en.akihabaranews.com/104993/icon-cat/event-show/kddi-labs-demos-3d-virtual-sound-technology