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Binaural recording is a method of recording sound that uses two microphones, arranged with the intent to create a 3D stereo sound sensation for the listener of actually being in the room with the performers or instruments.
Gnaural is free software for creating binaural beats intended to be used as personal brainwave synchronization software, for scientific research, or by professionals. Gnaural allows for the creation of binaural beat tracks specifying different frequencies and exporting tracks into different audio formats.
Holophonics is a binaural recording system created by Hugo Zuccarelli that is based on the claim that the human auditory system acts as an interferometer.It relies on phase variance, just like stereophonic sound.
QSound is essentially a filtering algorithm. It manipulates timing, amplitude, and frequency response to produce a binaural image.Systems like QSound rely on the fact that a sound arriving from one side of the listener will reach one ear before the other and that when it reaches the furthest ear, it is lower in amplitude and spectrally altered due to obstruction by the head.
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.
The binaural auditory system is highly dynamic and capable of rapidly adjusting tuning properties depending on the context in which sounds are heard. Each eardrum moves one-dimensionally; the auditory brain analyzes and compares movements of the two eardrums to extract physical cues and perceive auditory objects.
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In 1991, Roland Corporation launched Roland Sound Space, [8] a system that created a 3D sound-space using stereo speakers. It worked better for some listeners than others. [citation needed] Ambiophonics is an amalgam of new research and previously known psychoacoustic principles and binaural technologies. This knowledge has enabled audio ...