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Sound localization technology is used in some audio and acoustics fields, such as hearing aids, surveillance [1] and navigation. Existing real-time passive sound localization systems are mainly based on the time-difference-of-arrival approach, limiting sound localization to two-dimensional space, and are not practical in noisy conditions.
While the relationship between human perception of sound and various attributes of the sound field is not yet well understood, [2] DSP algorithms for sound localization are able to employ several mechanisms found in neural systems, including the interaural time difference (ITD, the difference in arrival time of a sound between two locations), the interaural intensity difference (IID, the ...
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.
Douglas Earl Comer, 2019. Douglas Earl Comer is a professor of computer science at Purdue University, where he teaches courses on operating systems and computer networks.He has written numerous research papers and textbooks, and currently heads several networking research projects.
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.
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 ...
Since CASA is modeling human auditory pathways, binaural CASA systems better the human model by providing sound localization, auditory grouping and robustness to reverberation by including 2 spatially separated microphones. With methods similar to cross-correlation, systems are able to extract the target signal from both input microphones. [11 ...
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.