NOISE MEASUREMENT AND FREQUENCY ANALYSIS OF COMMERCIALLY AVAILABLE NOISY TOYS

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GESHANI A.; SEDAEI M.; NASIRI PARVIN; JALAEI SHOHREH

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Journal: Auditory and Vestibular Research Journal Year:2005 | Volume:14 | Issue:23 Page(s): 6-11

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Information Journal Paper

Title

NOISE MEASUREMENT AND FREQUENCY ANALYSIS OF COMMERCIALLY AVAILABLE NOISY TOYS

Author(s)

GESHANI A. | SEDAEI M. | NASIRI PARVIN | JALAEI SHOHREH | Issue Writer Certificate

Keywords

NOISY TOYSQ4

NOISE-INDUCED HEARING LOSSQ4

NOISE POLLUTIONQ3

Abstract

Objective: Noise measurement and frequency analysis of commercially available NOISY TOYS were the main purposes of the study. Materials and Methods: 181 NOISY TOYS commonly found in toy stores in different zones of Tehran were selected and categorized into 10 groups. Noise measurement was done at 2, 25, and 50 cm from toys in dBA. The noisiest toy of each group was frequency analyzed in octave bands. Results: The highest and the lowest intensity levels belonged to the gun (mean=112 dBA and range of 100-127 dBA) and to the rattle-box (mean=84 dBA and range of 74-95 dBA), respectively. Noise intensity levels significantly decreased with increasing distance except for two toys. Noise frequency analysis indicated energy in effective hearing frequencies. Most of the toys energies were in the middle and high frequency region. Conclusion: As intensity level of the toys is considerable, mostly more than 90 dBA, and also their energy exist in the middle and high frequency region, toys should be considered as a cause of the hearing impairment.

Cites

SURVEY OF PARENTS’ KNOWLEDGE ABOUT SAFETY OF TOY AND THE CRITERIA FOR IT SHOPPING IN TEHRAN

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APA: Copy

GESHANI, A., SEDAEI, M., NASIRI, PARVIN, & JALAEI, SHOHREH. (2005). NOISE MEASUREMENT AND FREQUENCY ANALYSIS OF COMMERCIALLY AVAILABLE NOISY TOYS. AUDITORY AND VESTIBULAR RESEARCH, 14(23), 6-11. SID. https://sid.ir/paper/106278/en

Vancouver: Copy

GESHANI A., SEDAEI M., NASIRI PARVIN, JALAEI SHOHREH. NOISE MEASUREMENT AND FREQUENCY ANALYSIS OF COMMERCIALLY AVAILABLE NOISY TOYS. AUDITORY AND VESTIBULAR RESEARCH[Internet]. 2005;14(23):6-11. Available from: https://sid.ir/paper/106278/en

IEEE: Copy

A. GESHANI, M. SEDAEI, PARVIN NASIRI, and SHOHREH JALAEI, “NOISE MEASUREMENT AND FREQUENCY ANALYSIS OF COMMERCIALLY AVAILABLE NOISY TOYS,” AUDITORY AND VESTIBULAR RESEARCH, vol. 14, no. 23, pp. 6–11, 2005, [Online]. Available: https://sid.ir/paper/106278/en

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