OpenAL
Updated: 11/13/2018 by Computer Hope
Originally developed by Loki Software in 2000, Open Audio Library, commonly known as OpenAL, is an audio API (application programming interface) and is available for multiple operating systems. OpenAL is used for rendering multi-channel 3D positional audio. The style of OpenAL's API is similar to that of OpenGL.
OpenAL was also designed to replace proprietary 3D audio systems, like EAX (Environmental Audio Extensions) and A3D. It can also simulate attenuation, the Doppler effect, and material densities; adding realism to video games.
Note
Although OpenAL has the word "Open," its name it is not open source.