Phono ducting/Rockwool ducting

Hello

I was wondering wether phonoducting has a good effect on silencing sound or not. I have a theory that it might "isolate" the sound, so it is even louder when it goes outside the grow closet?

Thank you in advance

Oh, here's a link: http://bg-support.com/products/dk/Luftkonditionering/Slangesystemer/Phono-slange-fleksibel-127-mm-plm.html