Acoustic and psychoacoustic analysis of the noise produced by the police force firearms

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorSpeech Therapist-
Autor(es): dc.creatorGuida, Heraldo Lorena-
Autor(es): dc.creatorDiniz, Thiago Hernandes-
Autor(es): dc.creatorKinoshita, Sérgio Koodi-
Data de aceite: dc.date.accessioned2025-08-21T18:34:06Z-
Data de disponibilização: dc.date.available2025-08-21T18:34:06Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2011-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S1808-86942011000200005-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/232016-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/232016-
Descrição: dc.descriptionPolice officers are exposed to impact noise coming from firearms, which may cause irreversible injuries to the hearing system. Aim: To evaluate the noise exposure in shooting stands during gunfire exercises, to analyze the acoustic impact of the noise produced by the firearms and to associate it with tonal audiometry results. Study design: Cross-sectional. Materials and methods: To measure noise intensity we used a digital sound level meter, and the acoustic analysis was carried out by means of the oscillations and cochlear response curves provided by the praat software. 30 police officers were selected (27 males and 3 females). Results: The peak level measured was 113.1 dB(C) from a.40 pistol and 116.8 dB(C) for a.38 revolver. The values obtained for oscillation and praat was 17.9±0.3 Barks, corresponding to the rate of 4,120 and 4,580 Hz. Audiometry indicated greater hearing loss at 4,000Hz in 86.7% of the cases. Conclusion: With the acoustic analysis it was possible to show cause and effect between the main areas of energy excitation of the cochlea (praat cochlear response curve) and the frequencies of low hearing acuity.-
Descrição: dc.descriptionFaculdade de Filosofa e Ciências UNESP, Avenida Hygino Muzzi Filho 737, Campus Universitario, Marília, SP 17525-900-
Descrição: dc.descriptionSpeech Therapist-
Descrição: dc.descriptionFaculdade de Filosofa e Ciências Universidade Estadual Paulista, UNESP Campus, Marília SP-
Descrição: dc.descriptionFaculdade de Filosofa e Ciências UNESP, Avenida Hygino Muzzi Filho 737, Campus Universitario, Marília, SP 17525-900-
Descrição: dc.descriptionFaculdade de Filosofa e Ciências Universidade Estadual Paulista, UNESP Campus, Marília SP-
Formato: dc.format163-170-
Idioma: dc.languageen-
Relação: dc.relationBrazilian Journal of Otorhinolaryngology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectFirearms-
Palavras-chave: dc.subjectNoise-
Palavras-chave: dc.subjectOccupational-
Palavras-chave: dc.subjectPolice-
Título: dc.titleAcoustic and psychoacoustic analysis of the noise produced by the police force firearms-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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