Hi, I am helping a (neighbourhood) organization. This organization has noticed that around ten bars have opened within a six month period in their neighbo(u)r- hood. Almost all houses in the neighborhood, without regard to their sizes, are very close together. (Actually they are arranged next to each other). All of these houses have a small or large patio, depending on their size. Some house owners have rented some of these houses to run bars at night. Not all houses next to any of these bars have tenants or are occupied, but most bars have neighbors living close by. These bars are allowed to have music up to a certain decibel level, but they are not being checked all the time by the authorities. Members of our organization are concerned because there are neigbors who feel bothered at night and they can not sleep propperly or at all. The perceived loudness is not every day, but three to four days of the week. I wonder how the city officials measure loudness, or I wonder what could it be the best way to measure loudness? Is loudness measured by decibels? How expensive are these decibel-measurer, (is that their name?). Perhaps the organization I am helping can afford one. Which would be a brand and/or modell you would recommend? Perhaps these decibel-measurers can be attached to any of the walls in these bars and the decibels' information recorded during a night can be recorded and stored to be analized by the neighbors, city officials and bar owners. Perhaps these decibel-measures can keep a decibel level that is satisfying for all the parties involved. Any ideas or suggestions will be very appreciated to go about solving this situation. Thank you, kind regards, igmolinav : ) !!!