Placed between the furniture next door and talk loudly, to get people to pay attention to that cause, or complaints from people who know it as the base. Or a television or music, the sound is not the problem, brokerage Lets talk to the landlord or real estate company. Also, spread a carpet, DIY shop and talk and, in particular that there is a similar way to calling attention to all residents in soft or flyer and poster. Night, and put the washing machine and avoid vacuum cleaners. Trouble with other tenants, and also to make a high sound insulation and heavy curtains of the night playing music in the apartment or had better pass. Can introduce various products. The soundproofing measures will be easy. Especially after 10 leave open the windows, the repair will be done by yourself.