PlaySound2D triggering more than once.

Development Audio
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1

I have a Custom Event in BP (that is triggered from C++ using Broadcast from a Dynamic Multicast Delegate).
The event in BP has a PlayAnimation and a PlaySound2D. Sometimes (not all the time) the sound played is VERY loud, as if it has been played 2-4 times at once but then other times it sounds as expected.

Are multicast events safe for this?
What would trigger the event multiple times?
Anyone seen this?

I tried lowering the Audio Concurrency to 1 for these PlaySound2D events to see what effect it had and it “fixed” the “loud sound” bug, but sounds also started cutting off sounds and so it wasn’t satisfactory.

Thanks,

2

Hi,

I’ve not gone as deep as that just yet but I have logged everytime I broadcast and verified that it’s definitely only being done once.

I will try a breakpoint in PlaySound2D but it is tricky since it will hit it a lot and the bug doesn’t always happen.

3

Try using the PrintString node instead of debugging if you don’t want it to stop everytime then :wink: let me know how it goes!

4

Have you confirmed that the PlaySound2D is actually being called multiple times, with PrintString nodes for instance?

I’d say if it does, that it is likely that the C++ event is being broadcast more than once. Have you checked that too? Again with AddOnScreenDebugMessages, for instance :slight_smile:

5

I have found something. Although I broadcast only once the delegate finds two functions to invoke (both PlaySound2d with the same sfx) so I must have the created UI twice - somehow… I wil investigate further, thanks.

6

Found it. I was creating the Widget twice, doh!

Thanks for the help, breakpointing in PlaySound helped track it down.