Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/201220
Type: Artigo de periódico
Title: Sound Pressure Level Generated By Individual Portable Sound Equipment.
Author: Santos, Izabella dos
Colella-Santos, Maria Francisca
Couto, Christiane Marques do
Abstract: The use of Personal Digital Audio Players can cause hearing injuries, as the sound is generated directly in the ear canal. It is believed that different types of headphones can cause different amplifications, since they cause changes in the volume and resonance of the ear canal according to their depth. This study aimed to determine the sound pressure to which young individuals are exposed when using Personal Digital Audio Players with two types of headphones: insertion earphones and anatomical insertion earphones. This was an experimental study. The probe microphone measurements were made with different headphones in 54 ears (27 young individuals). The resonance peaks were also recorded. A statistically significant difference was observed between the evaluated headphones, showing that anatomical insertion earphones had higher levels of sound pressure than insertion earphones for all frequencies measured. There was no correlation between the resonance peak of the closed canal and the frequency where the highest sound pressure level was obtained. There was a significant difference between ears at some frequencies with the different headphones. It was concluded that anatomical insertion earphones generate a higher sound pressure level than insertion earphones.
Subject: Acoustic Impedance Tests
Acoustic Stimulation
Adolescent
Adult
Auditory Perception
Ear Canal
Equipment Design
Female
Humans
Male
Music
Pressure
Sex Factors
Sound
Young Adult
Rights: aberto
Identifier DOI: 10.5935/1808-8694.20140010
Address: http://www.ncbi.nlm.nih.gov/pubmed/24626891
Date Issue: -1-Uns- -1
Appears in Collections:Unicamp - Artigos e Outros Documentos

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