Soundproofing open heating pipes

Hello,

I live in a very thin-walled apartment, and there are almost daily new surprises regarding sounds that can be heard. This stresses me a lot, and if finding an apartment in Hamburg were not so complicated, I would have moved again long ago. To make it more bearable, I try everything to dampen sounds.
A new problem I have now is that you can hear the music from the newly opened café below me very loudly through the heating pipes (see photo). These run openly from below through the room and carry the sound upward as if there were a hole in the floor. You can also clearly hear voices through the pipes.
Is there a way to insulate the pipes and dampen the sound? Possibly with foam pipe covers? Or would one have to build a whole box around the pipes and try to insulate that? Or is there really nothing that can be done from up here?

try to loosen the pipe collars (push up?). The pipes probably have plenty of play in the penetration. I would stuff glass insulation wool into the cracks. Foam pipe covers are of little use; they are more suitable for thermal insulation. I consider it unlikely that the sound passes THROUGH the heating pipes. If it does, it is more likely conducted as structure-borne sound. That can also be dampened with mineral wool mats: wrap and fix!

Build a damped closed box around it, that works. Takes up as much space as a useless shelf, costs almost nothing at the hardware store around the corner, and is 100% reversible when moving out.