[UE5.3.2] Plugin does not work

[magswag]

System Information Please provide the following information about your system:

• Steam Audio version: 4.5.0
• Unreal Engine version: 5.3.2 (Launcher)
• Operating System and version: Windows 11 Home 22623.1037

Issue Description I went through the necessary steps of deleting the version of Steam Audio that ships with the engine, and downloaded the 4.5.0 release from Github. Then I extracted the "SteamAudio" folder into my blank project's plugin folder, enabled it in the project, and set it up in the [Project Settings/Platforms/Windows] settings. I then created a simple scene consisting of an extruded cube making up a wall, and an extruded cube making up the floor. I then tagged these cubes with the geometry component and exported the geometry, which I verified to be exported properly. However, when I created an actor with an audio component in the scene and set up the sound attenuation to use binaural spatialization with the steam audio config, it did not work, it sounded exactly the same as panning. Occlusion did not work either, at all.

Steps To Reproduce Steps to reproduce the behavior:

1. Delete the built-in SteamAudio from UE5.3.2
2. Install SteamAudio 4.5.0 to a blank project.
3. Enable it, and set it up in platform settings.
4. Blockout a simple scene.
5. Tag all meshes using the plugin and export geometry.
6. Drag a soundcue into the scene and override it's attenuation settings.
7. Set the spatialization method to Binaural, and create a new steam audio asset for the spatialization plugin settings, where you enable binaural and set the interpolation to bilinear.
8. Enable occlusion and create a new steam audio asset for the plugin settings. Enable "apply occlusion" on this asset.

[lakulish]

I tried to repro this issue, and I observed the following:

• The spatialization plugin (i.e. setting Spatialization Method to Binaural) works fine.
• The occlusion plugin does not work when playing in editor, but it does work when running a packaged build.

I think this has to do with the way the plugin is re-initialized when entering play-in-editor mode. Can you try commenting out line 138 of the function FSteamAudioModule::OnPIEStarted in Plugins/SteamAudio/Source/SteamAudio/Private/SteamAudioModule.cpp? This line currently reads:

Manager->ShutDownSteamAudio();

After commenting this line out, you will need to rebuild your project. If you are able to try this, let me know if it helps fix the issue. Thanks!

[magswag]

Commenting out line 138 and recompiling the plugin worked, thank you! 😄

[lakulish]

This issue should now be fixed in v4.5.1.