If noise pollution is an issue it is one best tackled prior to purchasing a wooden floor as it can affect your selection.
First be aware that solid wood floors need to be fully fixed to the sub-floor and cannot be installed as a floating floor so any sound proofing must be carried out under the sub-floor i.e. uplifting the existing floorboards/ply board and fitting a sound proofing material. Then re-fit or install a new sub-floor prior to installing the solid wooden floor on top.
The best choice of flooring with sound proofing in mind is either Laminate, engineered or Multiply engineered oak flooring as all of these floors can be installed as a floating floor meaning they can be installed on top of a sound proof underlay, which will reduce impact and airborne sound.
These underlays are installed over the top of the existing sub-floor, most are loose laid and rely on the weight of the product to hold it in place, the new flooring is than installed either using a glued tongue and groove fixing or a click system.
There are a number of sound reduction underlays available on the market all offering different properties and levels of decibel rating (dB), the cost of these products also varies considerable. When choosing your underlay, consider the following: