I checked the Braid sounds for the Mac and Linux versions, and from what I can see they're pretty much just direct ports. The the packaging (due to the different platform of course) is about the only difference I can see, but all the resources look exactly the same, even in terms of folder structure. I didn't extract them and check every sound file individually, but I looked into the archives and the names, extensions, and locations are identical to the PC's. I can hardly see a reason to change them anyway.
So yeah, they're the same
So yeah, they're the same