Attic - Upper floor ceiling soundproofing

Hello friends,

our house construction is in full swing. We are building 2 floors plus an attic. Knee wall at 1.80m. The attic partly lies over the bedroom, partly over the children's room. Our part will probably be used as storage space, the part over the children's room is intended to be used long-term as an additional room for the children's room when our little one gets older. We want to lay oak parquet in the house and in our imagination it should also be like that in the attic. Now it is so that the ceiling of the second floor will not be a concrete ceiling, but made of wood. Now everyone says we should, due to impact sound in the attic, use carpet instead of parquet. We hate carpets. Do you have any ideas how we could lay parquet on a wooden floor in the attic without being able to hear every step in the floor below?

Wooden ceiling is not just wooden ceiling - which type of ceiling is planned? A sensible structure with raw ceiling ballast is quite feasible, contrary to the common rumors that only mass helps.

Wooden ceiling is not the same as wooden ceiling - which type of ceiling is planned? A sensible structure with raw ceiling weighting is quite quiet, contrary to the common rumors that only mass helps.

I have to clarify that...

We have the practice (künftig Einliegerwohnung) under our bedroom. We are going to lower the ceiling and install a Knauf insulation board. This should reduce sound transmission to a minimum. I would not do without a wooden floor.

So, the ceiling construction will consist of about 25cm collar beams, with approximately 3cm OSB boards on top. The ceiling will be suspended 15cm below the collar beams. There should be quite a few options to insert something that prevents a parquet floor on the OSB boards from becoming a noise maker for the rooms below, right?