If you live in a condo, you will likely get some amount of noise coming in through your neighboring walls. It’s normal to hear some sound from your neighbor’s unit, but if you hear their voices clearly and can discern exactly what they’re saying, you need soundproofing. Sound travels via vibration and it can get into any crack, nook, or cranny. Therefore, any potential pathways should be blocked with insulating material. According to the International Code Council, insulation should have a sound transmission class (STC) rating of 45 or more. The higher the rating, the better job it will do in keeping sound blocked. If you’re tired of hearing about what your neighbor ate for dinner, this article will give you tips on how to soundproof a condo wall so you can get the peace of mind you need.