I'm sort of a neurologist, at least an undergrad studying this sort of thing.
Most of the literature shows people not being able to distinguish situations where audio is leading by less than 80ms for non speech sounds, and over 100ms for speech. (Video leading is okay by up to a couple of 100ms, so its too bad the problem isn't reversed!) Anyway, I'm surprised this is a problem, unless there is already some delay in the system, and this is pushing it past the limit.
As for you being able to feel 5 to 20ms changes... very little happens in your mind with this level of granularity. But not a lot has been done with people actively playing high speed games, and the stuff that has has been pretty interesting, so it's possible.
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I'm sort of a neurologist, at least an undergrad studying this sort of thing.
Most of the literature shows people not being able to distinguish situations where audio is leading by less than 80ms for non speech sounds, and over 100ms for speech. (Video leading is okay by up to a couple of 100ms, so its too bad the problem isn't reversed!) Anyway, I'm surprised this is a problem, unless there is already some delay in the system, and this is pushing it past the limit.
As for you being able to feel 5 to 20ms changes... very little happens in your mind with this level of granularity. But not a lot has been done with people actively playing high speed games, and the stuff that has has been pretty interesting, so it's possible.