I d start by fortifying the space between the door frame and the wall with some acoustic.
Thing to slide under door for less noise.
These kinds of sliding doors are designed to have a strong feel to the touch.
Place acoustic drapes over the door.
Avoid sliding bi fold and pocket doors that not only make noise themselves but also don t seal as well as the swinging type.
When planning for new doors and windows also consider where sound travels.
You can purchase drapes that are made out of sound dampening fabric.
Install a short curtain rod directly over the back of your door.
When you are inside the room simply slide the drape into place for less sound from outside.
So if you are willing to go deep in your pocket the taste is yours.
Magzo under door noise stopper 30 x 3 inch weighted sliding glass door draft blocker white noise reducer heavy duty seal guard saving energy sound proof 4 5 out of 5 stars 2 394.
They cost in the excesses of 3000.
Get a heavy fabric drape and hang it from the rod.
In addition plugging the gaps in the door is essentially the best thing you can do to prevent the noise from coming in as well.
They come with a plastic interlayer between two panes of thick glass.
Grotheory 2 pack door draft stopper under door draft blocker soundproof door sweep weather stripping for doors 2 w x 39 l black.
So having something under your door even stuffing a towel in the gap should significantly decrease the amount of noise.
To soundproof a door make it structurally strong enough to block noise by replacing it with a solid core door or by adding mass loaded vinyl soundproof blankets and panels to the existing door.
Then seal the gaps with a door gasket door sweep or spray foam to prevent air leaks.
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