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Sonar uses sound source localization techniques to identify the location of a target. 3D sound localization is also used for effective human-robot interaction. With the increasing demand for robotic hearing, some applications of 3D sound localization such as human-machine interface, handicapped aid, and military applications, are being explored ...
Sound localization is a listener's ability to identify the location or origin of a detected sound in direction and distance. The sound localization mechanisms of the mammalian auditory system have been extensively studied. The auditory system uses several cues for sound source localization, including time difference and level difference (or ...
3D sound reconstruction is the application of reconstruction techniques to 3D sound localization technology. These methods of reconstructing three- dimensional sound are used to recreate sounds to match natural environments and provide spatial cues of the sound source.
Perceptual-based sound localization may be used to enhance and supplement robotic navigation and environment recognition capability. [1] In addition, it is also used to create virtual auditory spaces which is widely implemented in hearing aids.
Both of these techniques, when used in water, are known as sonar; passive sonar and active sonar are both widely used. Acoustic mirrors and dishes, when using microphones, are a means of passive acoustic localization, but when using speakers are a means of active localization. Typically, more than one device is used, and the location is then ...
An application of 3D sound synthesis is the sense of presence in a virtual environment, by producing more realistic environments and sensations in games, teleconferencing systems, and tele-ensemble systems. 3D sound can also be used to help those with sensory impairments, such as the visually impaired, and act as a substitute for other sensory feedback.
These effects include localization of sound sources behind, above and below the listener. Some 3D technologies also convert binaural recordings to stereo recordings. 3D Positional Audio effects emerged in the 1990s in PC and video game consoles. 3D audio techniques have also been incorporated in music and video-game style music video arts.
[24] [25] The localization of a virtual source, based on level differences between two loudspeakers to the side of a listener, shows great inconsistency across the standardized 5.1 setup, also being largely affected by movement away from the reference position. 5.1 surround is therefore limited in its ability to convey 3D sound, making the ...