QtAudioEngine

AttenuationModelInverse: Defines a non-linear attenuation curve for a Sound.
AttenuationModelLinear: Defines a linear attenuation curve for a Sound.
AudioCategory: Control all active sound instances by group.
AudioEngine: Organize all your 3d audio content in one place.
AudioListener: Control global listener parameters.
AudioSample: Load audio samples, mostly .wav.
PlayVariation: Define a playback variation for sounds. So each time the playback of the same sound can be a slightly different even with the same AudioSample.
Sound: Define a variety of samples and parameters to be used for SoundInstance.
SoundInstance: Play 3d audio content.