The spatial domain convolution of sound waves utilising Head-related transfer functions is known as 3-D audio (processing). It is the process of modifying sound waves (using HRTF filters and cross talk cancellation techniques) to resemble real sound waves that originate from a point in three-dimensional space. It allows the brain to deceive itself by using the ears and auditory nerves to place distinct sounds in different 3-D positions after hearing them, even if the sounds are only produced by two speakers (dissimilar to surround sound).
3D audio systems can be found in a variety of places,
including mobile devices, gaming, home theatre, AR/VR audio systems, and more.
In addition, industries such as media and entertainment, vehicles, consumer
electronics, and others are implementing 3D audio technology to increase sound
quality and provide users with a real-time visualization and 3D audio
experience. 3D audio-visual (AV) technology is still in its early stages, but
the demand for it is growing rapidly in the film and gaming industries.
Mobile devices, gaming, home theatre, AR/VR-based audio
systems, and other applications employ 3D audio systems. In addition,
industries such as media and entertainment, vehicles, consumer electronics, and
others are implementing 3D audio technology to increase sound quality and
provide users with a real-time visualization as well as a 3D audio experience.
The need for 3D audio-visual (AV) technology is growing rapidly in the film and
gaming industries.
During the projected period (2018–2026), the global 3D
audio market is expected to rise significantly. Continuous
improvements in audio technology across many applications in multiple end-use
sectors such as film, gaming, and virtual reality concerts are credited with
the market's growth.