Bell sound when using Revelio

[matthias]

I have no idea what it is supposed to indicate. There is nothing highlighted in these areas or otherwise exposed or revealed. Can anybody help me out?

[dwchu711]

Indicates there's a hidden field note nearby. Bell sound will be louder the closer you get, and will give you direction, left or right, if you have stereo.

[TwisTeD SenSe]

It means you are close to a field guide page. Should be able to locate it by sounds, gets louder the closer you are.

[Nepnep]

Revelio pages. Look around for it. Since you can scan through walls, it can also mean the next room, the floor above, floor below, etc.

You need to be right beside the page to actually reveal it.

[Red Velvet]

Bell sound usually indicates something special, if you can't see anything highlighted it could be a field guide page, those things are surprisingly well hidden in the overworld because you just can't see that goldish yellow glow

[matthias]

Thank you. With headphones it becomes more obvious. My audio equiment was not paned out for gaming. But the hint to be still above or below my current stage in the area is not that easy.