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Wwise Unreal Integration Documentation
Known Issues

Implementation Notes and Known Issues for Wwise Unreal Integration

Cooking and Packaging

Iterative cooking is not supported in 2023.1. Unreal doesn't support our particular use case, and we are working on mitigating this issue. For now, the simplest solution is to manually delete the staged files. See https://issues.unrealengine.com/issue/UE-167603.

There is currently no automated way to separate assets by package. It is not possible to split languages into different optional packages, or make particular assets loadable independently. Although these features are planned, we need your feedback on your particular use cases so we can develop the most appropriate default feature set. Remember, it’s always possible to overwrite the different libraries in order to adapt the cooking functionality to your particular needs. You can also write specific rules directly in Unreal's Game - Asset Manager project preferences that would encompass the different Wwise assets in the Staging folder.

Known Issues

  • WG-44750 Physical Material Override on the Mesh cannot be used for Acoustic Texture assignment with an AkGeometryComponent.
  • WG-52497 The Unreal Editor might hang when modifying the Spatial Sound option on the current audio device. For example, this could occur when changing from Windows Sonic for Headphones to Off.

    Users encountering this issue can disable UE Audio to prevent this hang.

    In order to disable UE Audio, you must:

    1. Open your UE project's Config folder. (For example, WwiseAudioLab/Config.)
    2. Create a new subfolder called Windows.
    3. In the newly created Windows folder, create a WindowsEngine.ini file with the following contents:
      [Audio]
      AudioDeviceModuleName=
      AudioMixerModuleName=
  • WG-69181 When applying "Fix issue" to a Wwise Niagara module, a crash might occur. A similar behaviour occurs when using Unreal audio.
  • WG-69640 The Unreal Editor can crash if Niagara modules are loaded from a disabled plugin. This also affects Wwise Niagara.
  • WG-69735 Only the top-most "Post Persistent Event" Niagara module plays audio.

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