I'm wondering what the whirring, clicking sound effect is. Does anyone know? It seems to happen at random, as far as I can tell.

What room is it in? Some things are activated by touching them, which you do when you scroll the map.

As far as I can tell, it seems to be coming from outside... near the shed?

what are the careers of U family?

Does a family member work in the workshop?

The father is a dress maker and the mother is a fiction writer. It doesn't seem to have anything to do with what work they do, as far as I can tell. I don't think it's coming from the workshop.. I think it's above that a little. It sounds a little like a live electrical wire that's come loose, but the clicking is rather rhythmic. It's been awhile since I've played VV3, but I think I heard the same sound there, too, and never figured out what it was.

Hmm, I just started the game up again and heard it right away... none of the family members were in the workshop.

the modem/router is right by one of the computers, and sounds similar to that if it's been clicked. Could that be it?

No, this doesn't have any of the high pitched chirps... it's just whirring/buzzing with a few clicks.

I wonder if it's a bug in the game and some other sound is supposed to be playing.

I figured out what it is. I found the VF sound files (on a Mac.. opening the app as a package) and went through them with a sound playing app til I found it. It was the insect.ogg file. So, it's supposed to be insects, I guess.