What on earth is this bool?

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was indexing a sound effect called inside a aprt and i saw “audiocancollide”, no idea what it does, any help?

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It’s a property of BasePart and it was added in version 652 (we’re on 654 right now), so about 2 weeks ago. It seems to be for a prototype or testing for audios, which by the name implies, collide with parts.

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judging by the name and the reply above, it may be a test for some sort of realistic audio dampening, like how audio seems muffled through a wall. if im correct, this would be really cool, especially for horror games!

but, i can always be wrong.

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Roblox might be planning to add an update that allows sound waves to apply forces to unanchored parts

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Edit: Don’t take this reply too seriously, this reply is mostly a joke.

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finally i won’t hear sounds fully clear from 3 rooms over

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Personally, I think it’s more likely this is to muffle sounds that play behind parts, there was even a Hackweek project of it:

(At 1:02)

is this enabled by default for all parts?

I can’t check right now, but it should be easy to see for yourself by creating a new Part and printing the value of it in the Output. This feature will likely only be fully released mid-to-late-2025, we probably won’t get any information on it until next year because most of the engineering team is on holiday, and it doesn’t have any functionality right now.

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Just checked, yes, all parts have the bool set to true by default.