When you say rudimentary mapping of the area, do you mean a general map, or a way to pinpoint the Sound?
If it's a general map, you could certainly try, but the ship is massive, and it will be hard to keep everything straight. You could mark your way through and figure out where you've been, and where you haven't, but it is a pretty massive ship.
As for mapping the area, they can walk for as long as they'd like, but the sound does not seem to get louder/softer where you move. There is some change in the distance of the sound between noises, but it seems to be done on its own. The Sound is all-encompassing; it seems to be coming from everywhere, and nowhere at once. It does seem to . . . move, but it would take hours and hours to figure that out, as there are hours between each sound. :)
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If it's a general map, you could certainly try, but the ship is massive, and it will be hard to keep everything straight. You could mark your way through and figure out where you've been, and where you haven't, but it is a pretty massive ship.
As for mapping the area, they can walk for as long as they'd like, but the sound does not seem to get louder/softer where you move. There is some change in the distance of the sound between noises, but it seems to be done on its own. The Sound is all-encompassing; it seems to be coming from everywhere, and nowhere at once. It does seem to . . . move, but it would take hours and hours to figure that out, as there are hours between each sound. :)