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How to subclass AmbientSound

To add special playback logics to an AudioComponent contained in a AAmbientSound actor, I tried to subclass AmbientSound through Unreal Editor's Add Code to Project, however the editor complains that "Failed to add class . Failed to automatically compile module." If its not possible, why?

Product Version: UE 4.7
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asked May 22 '15 at 03:44 AM in C++ Programming

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I'm not sure why - it could have something to do with the "MinimalAPI" specifier in the code.

Anyway AmbientSound is a really thin wrapper around AudioComponent: it'll be easier and more flexible for you to create an Actor Blueprint from scratch, add it an AudioComponent and control it from the actor graph.

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answered May 22 '15 at 08:59 AM

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avatar image KidBroker May 23 '15 at 04:13 AM

Thanks but in code, is there a way I could get a reference to the AmbientSound actor which is manually added to UWorld? then I could dynamically add and delete audiocomponent from it.

avatar image G4m4 May 23 '15 at 08:34 AM

You have different ways to do this:

  • When you're spawning the actor from the code, keep a reference to it

  • Use the actor iterator to find yours

  • You could create events in the code, and use those in your actor blueprint to add and remove audio component in blueprint

...and probably a lot more. What are you trying to achieve?

avatar image KidBroker May 23 '15 at 01:35 PM

The ultimate goal is to access the raw data from a MediaSoundWave. My inital plan was to create an AmbientSound actor to host an audio component, which can load a MediaSoundWave as a SoundWave to access FByteBulkData RawData.

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