When inquiring on the legislation of sonorous pollution the answers of the interviewed ones are contradictory, therefore while it affirms to know what it is sonorous pollution majority 97% does not know no legislation regarding sonorous pollution, only 3% knows the legislation. Law 9,605/98, deals with the Law of ambient crimes, became possible the framing of the sonorous pollution as ambient crime. Article 54 – To cause pollution of any nature in levels such that result or can result in damages the health human being, or that they provoke the loss of life of animals or significant destruction of the flora. Penalty: reclusion of one the four years and fine If the crime is guilty: Penalty-detention of six to one year and fine. Relative problems to the levels of noises are enclosed between the citizens to the control of the ambient pollution, whose normatizao and establishment of compatible standards with the balanced and necessary environment the healthy quality of life, is attributed to the CONAMA (National Advice of the Environment). The identification between sound and noise is made through the use of units of measurement of the level of rudo.com this, defines, also, the acceptable and unacceptable standards of emission, creating themselves and allowing verification it of the bordering point with rudo.o level of express sonorous intensity habitually in decibels (dB) and is refined with the use of a called device decibelimetro. When inquiring on the use and use of the earphone, the quisito familiar income did not intervene with result, therefore 85% of the interviewed ones possesss some device of digital music hardwired to the earphone and only 15% do not possess or it does not use earphone. When inquiring on the volume the earphone, we evidence that only 10% use the minimum phone by vol., 15% in turn uses by vol. average and 33% use by vol. high and surprising 43% of the interviewed ones use the maximum phone by vol.