Only vapor barrier, no impact sound insulation?

I can't see anything with the blur!
And you can't either, right?

Is it possible in blurry? You can see every pore like that. Joking aside, take a proper picture(s). Then one can also make a statement. And of course, a description of the floor construction wouldn't be wrong either.

Where and what kind of impact sound insulation do you suspect/expect? Or what did you pay for it?

Thank you for your quick responses!

unfortunately doesn’t work, the auto-focus always focuses incorrectly. Sorry. Yes, the setup is quite thick, yet there is always a dull sound when stepping. Yes, the cable is actually just lying there "around".

I think it is a kind of laminate. Unfortunately, I’m only a tenant and can’t judge that exactly. Would an integrated impact sound insulation still produce a dull echo with every step?

and - sorry, somehow it doesn’t work better because of the autofocus. I already have about 20 pictures from the "spot".

It's not because of the autofocus, since it is not focused on anything. It's due to the short distance, a normal lens, whether phone or SR, can't achieve anything there. The question is why you are adjusting it then. Maybe you should read the camera manual sometime.., ;) Keep a greater distance! Or use a macro lens :)

or move closer with the phone camera and tap on the spot that should be in focus. Otherwise, increase the distance as correctly mentioned.

If the cable runs directly under the floor, this is likely to have a negative effect on the "walking feel" and also on the durability of the cable. But before that, I would check what kind of cable it is exactly, so that no voltage is present.

Hi everyone,

thanks for the feedback. I'll try again as soon as I'm back home.
Best regards