누적 청취 음량 측정을 위한 스마트폰 어플리케이션의 개발
Development of Smartphone Application to Measure Accumulated Sound Pressure Levels
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Purpose: Although it is acknowledged that abuse of portable listening devices such as high level of volume and long duration possibly occurs noise-induced hearing loss to young adults, there is no tool to accurately measure their levels and time duration. The present study aimed to develop a smartphone application which estimated user’s volume levels, the accumulated levels, and exposure time when he/she listened to music. Methods: The application which mainly consisting of service and activity was developed for Android users. Service function worked for measurement and transmission of data in the back, whereas the activity function with main activity and fragment took charge of various screen displays in the front. In addition, all data of application users was sent to a server system having Apache, Hypertext Preprocessor, My Structured Query Language and saved in real time. Finally, accuracy and reliability of the application was proved by using sound level meter and artificial ear simulator system. Results: The developed application had measurement image and data image. For the measurement image, image bar, option bar, graph view, text view, and seek bar were displayed during the listening to music. Data image presented four graphical views by time, daily, weekly and monthly and a calendar view with three different color codes. All data was saved at every five seconds in the main server system. Conclusion: Although preliminary data was run by three subjects to fully confirm any component for malfunction of the application, no problem was found. If applying further clinical study with a large size of participants, we expect that the application will be very helpful for the users to prevent themselves from hearing insult induced by high levels of music and long exposure time.
Abstract
Purpose: Although it is acknowledged that abuse of portable listening devices such as high level of volume and long duration possibly occurs noise-induced hearing loss to young adults, there is no tool to accurately measure their levels and time duration. The present study aimed to develop a smartphone application which estimated user’s volume levels, the accumulated levels, and exposure time when he/she listened to music. Methods: The application which mainly consisting of service and activity was developed for Android users. Service function worked for measurement and transmission of data in the back, whereas the activity function with main activity and fragment took charge of various screen displays in the front. In addition, all data of application users was sent to a server system having Apache, Hypertext Preprocessor, My Structured Query Language and saved in real time. Finally, accuracy and reliability of the application was proved by using sound level meter and artificial ear simulator system. Results: The developed application had measurement image and data image. For the measurement image, image bar, option bar, graph view, text view, and seek bar were displayed during the listening to music. Data image presented four graphical views by time, daily, weekly and monthly and a calendar view with three different color codes. All data was saved at every five seconds in the main server system. Conclusion: Although preliminary data was run by three subjects to fully confirm any component for malfunction of the application, no problem was found. If applying further clinical study with a large size of participants, we expect that the application will be very helpful for the users to prevent themselves from hearing insult induced by high levels of music and long exposure time.
참고문헌 (15)
- Axelsson, A., "Acute acoustic trauma", Acta Otolaryngologica, 104(3-4), pp.225~233 (1987)
- Basner, M., "Auditory and non-auditory effects of noise on health", Lancet, 383(9925), pp.1325~1332 (2014)
- Danhauer, J. L., "Survey of college students on iPod use and hearing health", Journal of the American Academy of Audiology, 20(1), pp.5~27 (2009)
- Fligor, B. J., "Output levels of commercially available portable compact disc players and the potential risk to hearing", Ear and Hearing, 25(6), pp.513~527 (2004)
- Hodgetts, W. E., "The effects of listening environment and earphone style on preferred listening levels of normal hearing adults using an MP3 player", Ear and Hearing, 28(3), pp.290~297 (2007)
- Keppler, H., "Hearing in young adults. Part I : The effects of attitudes and beliefs toward noise, hearing loss, and hearing protector devices", Noise and Health, 17(78), pp.237~244 (2015)
- Kim, K. S., "Industrial audiology and occupational hearing loss", Korean Journal of Audiology, 7(1), pp.3~14 (2003)
- Kujawa, S. G., "Adding insult to injury : Cochlear nerve degeneration after"temporary"noise-induced hearing loss", The Journal of Neuroscience, 29(45), pp.14077~14085 (2009)
- Criteria for a Recommended Standard : Occupational Noise Exposure, "National Institute of Occupational Safety and Health(NIOSH)", Department of Health and Human Services, 1~126 (1998)
- Ryan, A. F., "Temporary and permanent noise-induced threshold shifts: A review of basic and clinical observations", Otology and Neurotology, 37(8), pp.e271~e275 (2016)
- Saunders, J. C., "The anatomical consequences of acoustic injury : A review and tutorial", The Journal of the Acoustical Society of America, 78(3), pp.833~860 (1985)
- Spieth, W., "Intensity and duration of noise exposure and temporary threshold shifts", The Journal of the Acoustical Society of America, 30(8), pp.710~ (1958)
- Williams, W., "Noise exposure levels from personal stereo use", International Journal of Audiology, 44(4), pp.231~236 (2005)
- Yu, J., "Preferred listening levels of mobile phone programs when considering subway interior noise", Noise and Health, 18(80), pp.36~41 (2016)
- "Survey of Teens and Adults about the Use of Personal Electronic Devices and Head Phones 2006" (2016)[URL]