Sound Science: Physics of the 3D Audio effect

3D audio effects are a group of sound effects that manipulate the sound produced by stereo speakers, surround-sound speakers, speaker-arrays, or headphones. This frequently involves the virtual placement of sound sources anywhere in three-dimensional space, including behind, above or below the listener.

3-D audio (processing) is the spatial domain convolution of sound waves using Head-related transfer functions. It is the phenomenon of transforming sound waves (using head-related transfer function or HRTF filters and cross talk cancellation techniques) to mimic natural sounds waves, which emanate from a point in a 3-D space. It allows trickery of the brain using the ears and auditory nerves, pretending to place different sounds in different 3-D locations upon hearing the sounds, even though the sounds may just be produced from just 2 speakers (dissimilar to surround sound).

This article includes material from “3D audio effect.” Wikipedia. https://en.wikipedia.org/wiki/3D_audio_effect Licensed under Attribution-ShareAlike 3.0 United States (CC BY-SA 3.0 US) https://creativecommons.org/licenses/by-sa/3.0/us/ Authors: https://en.wikipedia.org/w/index.php?title=3D_audio_effect&action=history