Can zombies hear you when you dissembling furniture and do other activities?

[Frederick White]

Do actions such as dissembling, cooking, eating, or cutting down trees an actual in-game sound that zombies can hear?

[Shurenai]

Disassembling, yes. Cutting trees, yes. Not sure about cooking. But most things that have an ingame sound can indeed be heard by zombies, not limited to but including:
Running, walking, sprinting, fire, knocking on or breaking a door, burglar alarms, sneezing and coughing, a vehicle, smashing windows/doors/walls, TVS/radios/watch alarms, uhm.. disassembly/deconstruction as mentioned, construction and metalworking, firing guns, a running generator..uhm.. Probably some other things too, honestly.

If it has a sound effect, assume it makes some amount of actual sound the zombies can react to. Also loudness levels vary; Most zombies probably won't hear you walking, but they will hear you sprinting or shattering glass, for example.

[Shurenai]

Originally posted by Cat Supremacist SM:

Light switches, especially at night, can be a killer.

I believe that, at least temporarily, the light switch night sound has been removed.

[Armagenesis]

Originally posted by Cat Supremacist SM:

Light switches, especially at night, can be a killer.

I thought this is no longer the case? I watched Retanaru's video explaining how a light switch used to be louder than a gun for some reason, but I also read that it has been patched out. Though I can't remember where the source from.

[Frederick White]

That's really nice to know, just one more question. Do sounds work in Y-axis? Like if you're 1 or 2 floors above or below can they still hear it?

[Shurenai]

Originally posted by Frederick White:

That's really nice to know, just one more question. Do sounds work in Y-axis? Like if you're 1 or 2 floors above or below can they still hear it?

They can absolutely hear it when you're a floor or two above them. I'm not sure if there is any falloff from height currently implemented, but realistically speaking it wouldn't adjust the maximum range sounds can be heard from all that much- Would only really come into play for relatively quiet sounds that they probably aren't going to hear from a first floor, which a second or third floor would make effectively silent.