OpenAL is a cross-platform API (Application Programming Interface) It is dedicated to displaying multichannel three-dimensional positional audio. Some computer experts use OpenAL in order to take advantage of simulated attenuation. For instance, in some games, OpenAL offers you 3D realism, in this way, you would better not uninstall OpenAL from your PC. If you find you have never used this OpenAL program and will not use it in the time to come, you can try to delete it from Windows 7, 8, and 10.”]
Source: https://hackercombat.com/openal-software-should-you-keep-it-or-remove-it-from-your-pc/