Reducing noise & an extended door frame (35mm > 51mm)

[Felto]

Hey

I live in a very noisy household and I'm wondering if it's possible to soundproof a door or reduce some of the noise that gets in? I'll be replacing my hollow door for a hardwood door but apart from that i'm pretty clueless on how else to tackle the noise problem.

I also had to have my door frame extended from the standard 35mm width to 51mm so now there will be a 16mm gap that needs filling. I was going to use some sort of draught seal but maybe there is a noise reduction type seal I could use or another other option?

Any inputs are greatly appreciated

Thanks

 

[Felto]

Still open to any advice on what to do