For a wood floor to be anything other than terrible sounding, you would have to be in a HUGE room that was designed specifically with recording acoustics in mind (very complex, all walls and ceiling need to be angled in various ways related to each other, and room dimensions really matter, and AGAIN it must be HUGE)... if you were going to get any benefit from wood floor.
Otherwise use carpet. And since nearly all of us have poor rooms for audio use, pretty much ALWAYS use carpet. Thick carpet, preferably, with underlay.
You know the sound of a gymnasium? That is a HUGE room without any carpeting (or furniture, of course, so it's an extreme example).
Now if you can think of an example of a large room that doesn't have a lot of furniture in it but has carpeted floor, that'll show the difference. Nope, I can't think of an example either. But trust me here, it matters.
I can tell ya that for recording, if you want GOOD sounding natural room sound (mild warmth from the wood), you won't get it in a normal house sized room. It'll just be a nasty plate echo. There is roughly 8 feet between floor and ceiling normally. sometimes less, sometimes more. It would have to be several times that to have any useful effect, and the ceiling woudl need to have multiple curved baffles on it to sound good and have a nice even reverb.
When I was in university, I recorded in an orchestral room at the CBC studios in Canada. As soon as you walked through the (extremely thick, sound proof) doorway into that room and talked out loud, your voice sounded like it had dropped an entire octave. THAT is great recording acoustics.
We can't get useful acoustics in our homes, so it's pretty much always best to dampen it as much as possible. THICK (REAL) bass traps (not just foam) in the corners, and lots of thin traps along ceiling and walls.
