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DF2012:Noise
| This article is about the current version of DF. |
Certain jobs generate noise which disturbs nearby sleeping dwarves. Depending on a job's noise level and proximity, your dwarves could sleep "uneasily due to noise", "very uneasily due to noise", or be woken up by noise. These events will produce unhappy thoughts in varying degrees.
Neither walls nor doors will insulate dwarves from noise. Distance and how loud a job is are the only factors determining whether a dwarf's sleep will be disturbed.
Noise is produced when a noisy job is completed. Thoughts about noise do not appear until the sleeping dwarf has woken up.
Contrary to common belief based on earlier versions, Toady has stated that workshops do not currently produce any noise. In fact, he states that "only digging, chopping, making fortifications, engraving walls and removing constructions" will make noise.
Although there seems to have been the intention of noise being reinstated in a more potent form in the recent versions, there is no evidence that it actually was, and as such, you can actually have a bed directly next to a working metalsmith's forge, and the dwarves will not be bothered by the noise.
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[edit] Noisiness of various jobs
It's important to remember that noise is created in all 3 dimensions, including across z-levels - see below for visualization.
Short distances:
- Eating is believed to cause noise within 1 or 2 tiles; probably 1. It is unknown whether the noise radiates from the eating dwarf or his food.
Within 3-4 tiles:
- Engraving jobs produce sound 4 tiles away.
- It has been claimed that most other jobs cause noise within 2-4 tiles. More research is necessary to determine the specifics.
- An operating water wheel causes noise within at least 3 tiles.
Within 8 tiles:
- Mining and wood cutting
- Removing a construction
Within 16 tiles:
- Placing and removing buildings causes noise within 16 tiles. For example, placing a chair will cause a 33x33x33 cube (or 35937 tiles) of noise centered on the chair. Hopefully this will change in future versions.
- Combat has also been observed to wake dwarves up, which suggests that it causes noise within 16 tiles as well. Strangely, sparring does not cause any noise at all.
- Firing siege engines also produces noise within 16 tiles.
Non-noise actions:
- Jobs performed at workshops have recently been confirmed by Toady to not cause any noise at all.
- Hauling, and taking from/placing in stockpiles
- Sparring
- Traffic
[edit] Visualization
Noise radiates across z-levels in the shape of a cube, in all 6 directions (north/south, east/west, and up/down), so noise that travels 4 tiles will generate noise in a 9x9 pattern on 9 successive floors. The noise radiates from the center of the noise-producing apparatus.
Level 0 Level ± 1 Level ± 2 Level ± 3 Level ± 4 Level ± 5 ........... ........... ........... ........... ........... ........... .*********. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... .****N****. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... .*********. .*********. .*********. .*********. .*********. ........... ........... ........... ........... ........... ........... ........... N = Origin of noise * = Noise . = No noise
[edit] Noise in practice
- Try not to place buildings like doors while your dwarves are asleep. Or if you do, make sure they are at least 16 tiles away from the nearest sleeping dwarf.
- Don't dig near the bedrooms when there are dwarves sleeping in them.
[edit] Designing in anticipation of noise
- A good way to start is to put all your bedrooms on level -9 or lower, so you don't have worry about noise from woodcutting.
- If you anticipate there to be fighting in your Trade Depot, you should keep bedrooms away from there. (It is believed that fighting creates noise within 16 tiles, since it has the power to wake units up.)
- Alternately, you can deliberately place your barracks nearby, so that the combat can help wake up any sleeping warriors that should be helping. Remember that this comes at the cost of unhappy thoughts.
- Remember that jails, hospitals, and sleeping barracks should also ideally be kept away from noise, in addition to standard and noble bedrooms.