OpenAL acts as an intermediary between a software application and the audio hardware. It models a collection of audio sources moving in a 3D space relative to a listener. The API automatically calculates the appropriate volume, balance, and frequency adjustments based on the relative coordinates of the object and the listener.
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Integrates with Environmental Audio Extensions (EFX) to process environmental effects like reverb, occlusion, and obstruction. Installation and Troubleshooting Guide openal -open audio library- 2.0.7.0