Effects of the mp3 player on hearing

Purpose to investigate if there is damage and the extent of even using MP3 player. Methods to get the best results on the extension of this harm, in addition to the Distortion Product Otoacustic Emission, the groups were also evaluated with Transient Evoked Otoacustic Emissions. They were asked to listen to MP3 players and divided into two groups, 15 of them belonged to the controlled group (medium intensity of 85 dBNA) and the others in the analysis group (medium intensity of 110 dBNA). The method used for the analysis was inferencial (test “t” to parallel samples). Results the results showed that the controlled group has presented alterations in the frequency of 1,5kHz in the Transient Evoked Otoacustic Emissions and 6 kHz in the frequency of Distortion Product. While the study group showed alteration in the frequency of 2, 3, 4 kHz and also in the medium amplitude of all frequencies in the Transient Evoked Otoacustic Emissions and in the frequencies of 3 and 6 kHz in the Distortion Product. Conclusion this study confirmed that those people exposed to intense noise, generated by the MP3 Player, showed a significant loss of their hearing extension, indicating a temporary change in their cochlea cells that might turn into a permanent loss when continuously exposed to it.