EAX is disabled and changing the ini does nothing. Original game uses OpenAL routed through FMOD. Don't use Alchemy because all that does it convert DirectSound3D to OpenAL. Converting OpenAL to OpenAL is pointless. Adding a openal32.dll just makes the game crash.
Topic on Talk:BioShock Remastered
I seem to recall I have read BS2 remaster still uses FMOD (so.. I'd expect this to use it too)
The only problem it seems, is that they dropped OpenAL, DShw and EAX support in 2010.
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Just for the records anyway, using ALchemy in native OpenAL games, for as much as insane, still makes sense thanks to Creative wonderful intelligence, as discussed here.