This is technically known as spatial domain convolution of sound waves using head-related transfer functions (HRTF). The term spatialization is what is called the projection and localization of sound source in a space, physical or simulated and its spatial movement in space.Ĭombined, you end up with ambisonic audio techniques which are bracketed as having 5 levels+, the first level being the simulation of the points of a compass and increasing in steps to 8 then 16, 32, 64 +. As a technique used in modern music, it has been in use since around 1928 as ‘Raumusik’ or “space music” from Germany. This has been in use since prehistoric times in the form of antiphon. Spatial music is music composed to intentionally exploit sound localization. To account for direction, distance, and environmental factors, content creators produce such “spatially oriented” audio experiences when creating soundtracks. This involves the simulated placement of virtual sound sources anywhere in a simulated three-dimensional space, including behind, above or below the listener. Spatial audio ( also referred to as 3D audio or 360 audio) is a sonic experience where the audio changes with the movement of the viewer’s head 3D audio effects manipulate the audio waves produced by stereo speakers, surround-sound speakers, speaker-arrays, or headphones.
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