I am actually able to identify it as Swedish through the ventilation shaft, and if I put my ear to it and actually listen it is really easy to make out what they are saying, but remember that we are talking about identifying a language by what you hear through the floorboards and like at least 2 meters of solid ground, with no open air in between. This is not the same as being able to identify a language when you actually hear it spoken.
I am actually able to identify it as Swedish through the ventilation shaft, and if I put my ear to it and actually listen it is really easy to make out what they are saying, but remember that we are talking about identifying a language by what you hear through the floorboards and like at least 2 meters of solid ground, with no open air in between. This is not the same as being able to identify a language when you actually hear it spoken.