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OnAudioFinished not called for USoundWaveProcedural

I have a class extended from USoundWaveProcedural:

 // HEADER
 UCLASS()
 class UMySoundWave : public USoundWaveProcedural
 {
     GENERATED_UCLASS_BODY()
 
     public:
         bool Initialize();
 };
 
 //CODE
 UMySoundWave::UMySoundWave(const FObjectInitializer& ObjectInitializer) : Super(ObjectInitializer) {}
 
 bool UMySoundWave::Initialize()
 {
     uint32 BytesRead;
     uint8 *AudioBuffer = ...;// HERE: GENERATE PCM DATA AND FILL BytesRead
     
     NumChannels = 1;
     SampleRate = 44100;
     Duration = (BytesRead / 2) / 44100.0;
     SoundGroup = SOUNDGROUP_Voice;
         
     QueueAudio(AudioBuffer, BytesRead);
         
     delete AudioBuffer;
 
     return true;
 }

The problem is when I use SpawnSoundAttached with this sound, OnAudioFinished never called.

Product Version: UE 4.21
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asked Nov 30 '18 at 09:30 PM in C++ Programming

avatar image

yar3333
36 3 1

avatar image faetell Feb 03 '19 at 04:13 AM

Did you ever figure this out?

I've been struggling with the same issue for the past few days now. I'm considering just putting in a delayed event where the delay = the length of the audio, but that just feels sloppy...

avatar image yar3333 Feb 03 '19 at 08:11 AM

I did the same - timer as a solution/workaround.

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