Exterior walls 24cm hollow bricks: WDVS or Poroton T7?

No idea who changed the title. My headline is:
Exterior walls masonry with 24cm high perforated bricks with ETICS or Poroton T7 42.5cm?

I have the Unipor W08 Plan in 36.5cm (are basically the same as the T8 Poroton). So far, I am extremely satisfied, no sound problems or most of it goes through the windows anyway. Inside the house, it is not too sound-transmissive either. The thick concrete ceiling creates good damping between the floors. In case of doubt, I would have taken at most 42.5cm for marginally better insulation, but that is probably money wasted anyway.

If you talk on the phone on the ground floor, you can hear it on the upper floor

So that's really not to blame on the bricks of the exterior wall, when you have a massive reinforced concrete ceiling between the floors, where the brick wall is completely interrupted all around. How should anything couple over the exterior wall there?

Or do you only have a lousy wooden floor in between?

So this is really not the fault of the bricks of the exterior wall when you have a massive reinforced concrete ceiling between the floors, where the brick wall is completely interrupted all around. How should anything couple through the exterior wall there? Or do you only have a lousy wooden intermediate ceiling?

Of course massive concrete ceiling. The sound still passes through. I have checked this in several houses. And in apartment buildings you also have concrete ceilings. Try it out. Ear on the brick on the upper floor and you hear everything from the ground floor. It is purely due to the lousy brick. Or knock on the wall, it is a hollow body.

So, a hollow brick also has continuous perforations like an unfilled poroton stone. The sound should then also be transferable between the floors here. The only solution would be filled poroton or concrete wall with insulation. That can't be, can it?

Well, or sand-lime brick. Most people just don't mind that. Besides, the concrete ceiling doesn't go through, because you need thermal insulation on the end face. That alone is a huge noise bridge. Nowadays, sticking stones on makes the effect even worse, of course.