Chatterer skin question

This question is for folks who have bought/played against the new legendary costume for The Cenobite:

I know in the preview video, the Chatterer cenobite skin shows him doing his cinematic 'teeth gnashing', but does the in-game killer actually do that? Do survivors see him chattering or the killer hear the character making that noise? Or is the outfit purely a Pinhead reskin, without any additional visual/audio features to better represent Mr. Smiley?

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