There are many ways to soundproof a room. Soundproofing can start at the floor level, the walls and finally the ceiling. Improve the ability of the structures to absorb sound energy and vibration is the main principle behind soundproofing. As well as soundproofing the main structure of the room there are other tips which you can put into practice in order to reduce the noise transfer. The infographic below is a simple guide to soundproofing a room courtesy of Soundproofingonline.
Infographic by: soundproofingonline
Infographic by: soundproofingonline