openal-soft

OpenAL is an audio library designed in the spirit of OpenGL--machine
independent, cross platform, and data format neutral with a clean,
simple C-based API.
OpenAL provides capabilities for playing audio in a virtual 3D
environment. Distance attenuation, doppler shift, and directional
sound emitters are among the features handled by the API. More
advanced effects, including air absorption, occlusion, and
environmental reverb, are available through the EFX extension. It
also facilitates streaming audio, multi-channel buffers, and audio
capture.
OpenAL Soft is an LGPL-licensed, cross-platform, software
implementation of the OpenAL API.

          

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License: LGPL-2.1+ or GPL-2.0+
URL: http://www.openal-soft.org/