How to sync audio with video while rendering?

[midgunner66]

@ruigol

As for solution 2, do you mean a way to capture the spectrum data and play it back over the duration of the song, in effect, allowing the niagara to react to the music without requiring realtime and therefore being able to render for however long it takes and remain synced. If so, do you have any idea how?

Not what I meant, but what you suggested is a great idea. I found some nodes that are similar to the one you’re using in your graph: https://docs.unrealengine.com/en-US/BlueprintAPI/SoundVisualization/index.html. They let you sample audio at a specific time, so you can use that to keep it in sync.