Are you bothered by noise coming in and out of your room?
Soundproofing a room requires installing noise-blocking materials on doors, walls and windows. These materials are dense enough to block lower and higher sound frequencies. Sealing all gaps and cracks is also important.
Seal any gaps on the window frame with weatherstrip or foam tape. Cover the window with heavy sound deadening curtains. Install plastic noise blocking window film on the glass surface.
Seal the gaps between the door and the frame with weatherstrip or foam tape. Attach a door sweep to the bottom of the door. Install soundproofing panels, moving blankets or mass loaded vinyl on the door.
Install soundproofing materials in or on the wall. For external application place soundproofing panels, mass loaded vinyl or moving blankets directly on the wall’s surface. For internal application install mass loaded vinyl on the studs and/or fill up the space between the studs with rockwool batts.
Additionally, place a thick carpet or rug on the floor. It will also soak up some of the noise from footsteps and improve acoustics.
Focus on the areas with weakest sound insulation: doors, windows, air vents, gaps. Seal gaps with weatherstrip tape. Cover doors, windows, walls with sound deadening curtains or moving blankets. If the noise persists, add extra layers of material on the same areas.