Acoustic door blanket panels overlap the door and extend beyond the frame to prevent acoustical leaks.
Soundproof door panel.
To soundproof a door install a curtain rod over the back of the door and get a heavy fabric drape to hang from the rod.
While closed doors do a decent job shutting out the noise outside the room cracks between a door and its casing or threshold offer just enough space for some sound to filter in.
Soundproofing doors is easier when you understand the acoustics involved.
You can also coat the door with sound absorbing paint which can reduce external noise by nearly 30.
Magnetic door gaskets only work on doors which are built into metal frames so they aren t a suitable method of soundproofing for most doors.
These panels offer a step up from gluing a sheet of plywood to your door but they re not generally as expensive as high end solutions like fiberglass soundproofing blankets.
If you are willing to change your doorframe to a metal one then this is a very effective door sealing method which will make a huge difference to the sound resistance of your door.
They have a cut out for the door handle slits to fit around the hinges and velcro sewn onto the back for quick and easy installation.