OnAudioFinished not called for USoundWaveProcedural

Development Audio
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1

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.

2

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…

3

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