I need some advice on acoustic panels please?!?

My tv is mounted on a wall and on the other side of that wall is my roommate. he says it gets a little loud sometimes when I have my tv on, even though its not that loud. If i buy some acoustic tiles and place them behind my tv, will that help absorb some of the sound so that my roommate wouldn t hear it? Or would... show more My tv is mounted on a wall and on the other side of that wall is my roommate. he says it gets a little loud sometimes when I have my tv on, even though its not that loud. If i buy some acoustic tiles and place them behind my tv, will that help absorb some of the sound so that my roommate wouldn t hear it? Or would it just dull out the sound from the tv and i wouldnt be able to hear it from my bed?
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