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Warianty tytułu
Języki publikacji
Abstrakty
The paper presents results of hearing loss measurements provided for 81 young people (from 16 to 25 years old). The main aim of the work was to find the influence of headphones of the types used (closed, semi-open, open and in-ear) on the hearing losses. The first part of the research was to answer questions about the influence of: time of listening, loudness of music, other noise exposures as well as the type of the headphones used. It turned out that all factors mentioned above influence thresholds of hearing but the found dependencies are not explicit. The greatest hearing losses were observed for people who work as sound reinforcement engineers and, moreover, no influence of the headphone types was found for them. It turned out that the use of in-ear headphones causes the greatest hearing losses for some subjects (thresholds shifted up to about 20 dB HL at 4 kHz). The daily time of a listening also affected the hearing thresholds. It was found that for users of in-ear and close headphones, an average time of musical exposure of three hours causes the hearing loss of 10-15 dB HL at higher frequencies. The use of open as well as semi-open headphones has no influence on the hearing damage. Thus it would be stated that these kinds are safety in use. Almost 15% of the investigated young people have their thresholds shifted up at higher frequencies, particularly at 4 kHz, which means that they have the first symptoms of a permanent hearing damage.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
383--387
Opis fizyczny
Bibliogr. 11 poz., tab., wykr.
Twórcy
autor
- Chair of Acoustics and Multimedia, Faculty of Electronics, Wrocław University of Technology Wybrzeże Wyspiańskiego 27,50-370 Wrocław, Poland
autor
- Chair of Acoustics and Multimedia, Faculty of Electronics, Wrocław University of Technology Wybrzeże Wyspiańskiego 27,50-370 Wrocław, Poland
autor
- Chair of Acoustics and Multimedia, Faculty of Electronics, Wrocław University of Technology Wybrzeże Wyspiańskiego 27,50-370 Wrocław, Poland
Bibliografia
- 1. BIAP Recommendation 02/1 bis: Automatic classification of hearing impairment, Oct. 26, 1996.
- 2. Chiou-Jong Ch., Yu-Tung D., Yih-Min S., Yi- Chang L., Yow-Jer J. (2007), Evaluation of Auditory Fatigue in Combined Noise, Heat and Work load Exposure, Industrial Health, 45, 4, 527-534.
- 3. Gulati S. (2011), Hearing loss from headphones and earphones, http://www.symptomfind.com/health/he-aring-loss-from-headphones.htm.
- 4. Greń J. (1978), Mathematical Statistics. Models and Exercises [in Polish], PWN, Warszawa.
- 5. ISO 7029:2000, Acoustics Statistical distribution of hearing threshold as a function of age.
- 6. ISO 8253-1:2010, Acoustics - Audiometric test methods- Part 1: Pure-tone air and bone conduction audiometry.
- 7. Katz B. (2007), Mastering Audio: The Art and the Science, Focal Press, Oxford.
- 8. Moore B.C.J. (1997), An Introduction to the Psychology of Hearing, Academic Press, London.
- 9. PN-EN 26189, The measurements of hearing threshold by audiometric air conduction for hearing protection [in Polish].
- 10. Strelau J. (2000), Psychology [in Polish], Gdańskie Wyd. Psychologiczne, Gdańsk.
- 11. Vickers E. (2011), The Loudness War - Do Louder, Hyper compressed Recordings Sell Better?, J. Audio Eng. Soc., 59, 5, 346-352.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-43a01d9e-fd87-4a76-9179-2d23d206057c
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