There are a few ways to soundproof a room on the cheap. The most common methods are to add insulation, add sound dampening materials, or seal up any cracks or gaps in the walls. Adding insulation is probably the cheapest and easiest way to soundproof a room. You can buy insulation at most hardware stores, and it's easy to install yourself. Just make sure you buy enough insulation to cover all of the walls, ceilings, and windows in your room. Adding sound dampening materials is another cheap way to reduce noise levels in a room.

There are a few ways to soundproof a room cheaply. The most common way is to add some extra insulation to the walls, ceiling, and floors. You can also add some acoustic panels or curtains to help absorb and deflect noise. If you have any large appliances or furniture in the room, try moving them around or covering them up with blankets or curtains to help muffle the noise. Finally, make sure your doors and windows are properly sealed and insulated.