# Audio Create personalized and realistic spatial audio experiences. ## Overview Creating a compelling audio experience with RealityKit is as simple as playing audio on your existing RealityKit entities. Use RealityKit’s default audio settings to create a personalized and realistic experience or utilize advanced customization options to tailor the audio for the needs of your application. Utilizing acoustic ray tracing and a personalized HRTF, RealityKit provides lifelike and high-quality sound. You can load and configure audio with an [`AudioResource`](/documentation/RealityKit/AudioResource) subclass, such as [`AudioFileResource`](/documentation/RealityKit/AudioFileResource), and adjust the spatial rendering with [`SpatialAudioComponent`](/documentation/RealityKit/SpatialAudioComponent), [`AmbientAudioComponent`](/documentation/RealityKit/AmbientAudioComponent), [`ChannelAudioComponent`](/documentation/RealityKit/ChannelAudioComponent). Control the audio resource playback with [`AudioPlaybackController`](/documentation/RealityKit/AudioPlaybackController). For real-time audio playback you can prepare a [`Audio.GeneratorRenderHandler`](/documentation/RealityKit/Audio/GeneratorRenderHandler) and control playback with [`AudioGeneratorController`](/documentation/RealityKit/AudioGeneratorController). You can control the playback levels of multiple resources at once with [`AudioMixGroup`](/documentation/RealityKit/AudioMixGroup) and [`AudioMixGroupsComponent`](/documentation/RealityKit/AudioMixGroupsComponent). ## Topics ### Audio source components [Creating a Spaceship game](/documentation/RealityKit/creating-a-spaceship-game) Build an immersive game using RealityKit audio, simulation, and rendering features. [`SpatialAudioComponent`](/documentation/RealityKit/SpatialAudioComponent) A component that configures how sounds emit from an entity into a person’s environment. [`AmbientAudioComponent`](/documentation/RealityKit/AmbientAudioComponent) A component that configures the ambient rendering of sounds from an entity. [`ChannelAudioComponent`](/documentation/RealityKit/ChannelAudioComponent) A component that configures channel-based rendering of sounds from an entity. ### Playback controllers [`AudioPlaybackController`](/documentation/RealityKit/AudioPlaybackController) A controller that manages an audio playback instance. [`AudioGeneratorController`](/documentation/RealityKit/AudioGeneratorController) A controller that manages the playback of a real-time audio stream. [`AudioGeneratorConfiguration`](/documentation/RealityKit/AudioGeneratorConfiguration) A container for various settings for preparing and playing an AudioGeneratorController. [`AudioEvents`](/documentation/RealityKit/AudioEvents) Events associated with audio playback. [`PlayAudioAction`](/documentation/RealityKit/PlayAudioAction) An action which plays an audio resource on the given target entity. ### Audio resources [`AudioFileResource`](/documentation/RealityKit/AudioFileResource) An audio resource that you load from a file or from a URL. [`AudioFileGroupResource`](/documentation/RealityKit/AudioFileGroupResource) An audio file group. [`AudioBufferResource`](/documentation/RealityKit/AudioBufferResource) An audio resource that you load from an . [`AudioLibraryComponent`](/documentation/RealityKit/AudioLibraryComponent) A container for audio resources that you can look up by user-defined names. [`AudioResource`](/documentation/RealityKit/AudioResource) A playable audio resource [`Calibration`](/documentation/RealityKit/AudioResource/Calibration) A container for different calibration modes that can be applied for playback. [`Normalization`](/documentation/RealityKit/AudioResource/Normalization) Normalization adjusts the level of an audio file or buffer to be at a defined target. ### Reverb [`Reverb`](/documentation/RealityKit/Reverb) The reverberation RealityKit applies to spatial audio sources. [`Preset`](/documentation/RealityKit/Reverb/Preset) Reverbs defined by a preset environment. [`ReverbComponent`](/documentation/RealityKit/ReverbComponent) A component that defines the reverberation of spatial audio sources. ### Audio mixing [Mixing spatial music](/documentation/RealityKit/mixing-spatial-music) Preview ray-traced reverb by adjusting a spatialized multitrack audio mix in an immersive scene. [`AudioMixGroup`](/documentation/RealityKit/AudioMixGroup) A group that manages the playback properties of multiple playing sounds. [`AudioMixGroupsComponent`](/documentation/RealityKit/AudioMixGroupsComponent) A component that provides functionality for controlling the playback of audio you assign to mix groups in a scene. ### Audio types [`Audio`](/documentation/RealityKit/Audio) A namespace for types that are used commonly in audio. [`Decibel`](/documentation/RealityKit/Audio/Decibel) The unit for measuring intensity of sound on a logarithmic scale. [`Directivity`](/documentation/RealityKit/Audio/Directivity) The radiation pattern of sound emitted from an entity. [`DistanceAttenuation`](/documentation/RealityKit/Audio/DistanceAttenuation) The different ways that audio intensity diminishes as the distance between the listener and the sound source increases. ### Acoustics and group playback [`ReverbMeshResource`](/documentation/RealityKit/ReverbMeshResource) A high-level representation of a collection of vertices and edges that define a shape used for simulating reverb. [`AudioPlaybackGroupController`](/documentation/RealityKit/AudioPlaybackGroupController) A controller that manages synchronized playback for a group of audio resources. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)