How do you activate triggers for MetaSound using Blueprint?

Development Programming & Scripting Blueprint
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Due to the official release of UE5 getting rid of the “Get Parameter Interface” node, it seems that every tutorial and forum post I come across is outdated on this matter. I simply wish to be able to start/stop various parts of a MetaSound with triggers that will be called by blueprint. However, I can’t seem to get even basic functionality working. My most recent attempt at this is below:

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When I click play on the project, only the first wave asset plays. In order for the second to play, I need to manually click simulate on the trigger.

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Not deleting the topic because it took me 4 full days of searching for an answer and someone is bound to be looking for the same thing.

Either way, this Youtube video covers it quite well: UE5 Metasounds Quickies 7: Controlling Metasound Parameter and Array Inputs from Blueprints - YouTube

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Hi, hanks very much! I was trying to get my metasound system to work in UE5 for ages. This seems to help

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This didn’t explain anything. I’m still having the exact same issue as OP

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@Shadowfang_TC did you ever figure this out? I’m having a devil of a time with it because everything keeps changing from version to version of UE5

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This keeps tripping me up, too!

The solution is that you need to be passing parameters to the audio component and not the metasound source.