scholarly journals Influence of noise level and seniority in the workplace on the SAL, ELI and percentage of hearing loss indices in the diagnosis and prevention of hearing loss in the working population

2022 ◽  
Author(s):  
Jesús P. Barrero ◽  
Susana García-Herrero ◽  
Miguel A. Mariscal
Keyword(s):  
Hearing Loss ◽  
Noise Level ◽  
Working Population ◽  
Influence Of Noise

Effects of Railway Noise on Residents’ in A Residential Area

2021 ◽  
Vol 3 (01) ◽  
pp. 17-28
Author(s):  
Ria Anggreani Syahputri ◽  
Budi Damianto
Keyword(s):  
Noise Level ◽  
Sleep Disturbances ◽  
Sampling Technique ◽  
Residential Area ◽  
Comfort Level ◽  
Simple Method ◽  
Urban Village ◽  
Noise Measurements ◽  
Influence Of Noise

Population growth in Depok City is large and not in accordance with development land causes many residents’ to build houses with conditions <5 meters from the line of Electric Rail Train or Kereta Rel Listrik (KRL); this causes changes in the quality of the environment, including noise. The objective of this study is to determine the noise level, and the results will be compared with the standard noise level of the residential area; also, to find the influence of noise on residents’. This research was conducted in the area of ​​Rawa Geni Raya Street, 1st Neighborhood, Ratu Jaya Urban Village, Depok City. Noise measurements were carried out at 5-points using a simple method with a noise level measuring instrument (SLM). At one time, the measurement was taken for 10 minutes with a reading time of every 5 seconds. The questionnaire was measured using a Purposive Random Sampling technique, and the number of samples was calculated using the Slovin formula. The results of this study indicate that the 5-point noise level exceeds the recommended threshold according to KEPMEN LH 48 of 1996 and PERMENKES 718/1987 at  55 dB(A). The largest value for the 24-hour noise level (LSM) is at point 1, which is 5 m from the KRL line. The noise level on the weekday is 75.32 dB(A) and 74.24 dB(A) on weekends. According to PERMENKES No 718/1987, the location of point 1 should be included in Area D as an industrial zone, plant, railway station, and bus terminal. The results of questionnaires by 34 respondents showed that the noise generated by KRL was noisy and the majority of respondents agreed the noise affected the comfort level; in terms of health, respondents agreed KRL noise caused sleep disturbances and hearing loss.

scholarly journals The Noise Level Measurements of Children’s Sound Books

2021 ◽  
Vol 17 (4) ◽  
pp. 371-379
Author(s):  
Seok-Hee Joo ◽  
Eun-Yeong Shin
Keyword(s):  
Hearing Loss ◽  
External Auditory Canal ◽  
Noise Level ◽  
Sound Intensity ◽  
International Standards ◽  
Children's Books ◽  
Children’S Books ◽  
Hearing Rehabilitation ◽  
Children's Book ◽  
International Standards Organization

Purpose: It was intended to measure the sound intensity of children's sound books and to compare them with the standards of Korea and the International Standards Organization (ISO).Methods: The loudness of 15 children’s sound books was measured at a distance of 25 cm (child’s arm length), and 2.5 cm length of external auditory canal. Measurements taken three times with each book were performed, and the overall sound intensity of the sound books and the sound intensity of each button were measured and compared.Results: Compared with the Korean standard, all the buttons of all books exceeded the standard for the sound volume of the children’s book measured at a distance of 2.5 cm. When comparing the maximum sound intensity measured at a distance of 25 cm with 85 LAmax, a total of 168 buttons of these, 25 (14.88%) were recorded as exceeding the maximum loudness. According to the standards of the ISO, all buttons in all books were below the standard 85 LAeq.Conclusion: Several children’s books are loud enough to cause noise-induced hearing loss, especially when they are placed close to the ear. Strict standards for sound children’s books are required, and it is important to put a warning on the cover of the book. It is expected that the sound intensity of the children’s sound book presented in this study can be referenced when referring to the loudness during hearing rehabilitation in children.

Economic Impact of Hearing Loss and Reduction of Noise-Induced Hearing Loss in the United States

2017 ◽  
Vol 60 (1) ◽  
pp. 182-189 ◽  
Author(s):  
Richard L. Neitzel ◽  
Tracy K. Swinburn ◽  
Monica S. Hammer ◽  
Daniel Eisenberg
Keyword(s):  
Hearing Loss ◽  
Economic Benefit ◽  
Noise Exposure ◽  
The United States ◽  
Health Programs ◽  
Working Population ◽  
Additional Costs ◽  
New Policies ◽  
Economic Analyses ◽  
Excessive Noise

Purpose Hearing loss (HL) is pervasive and debilitating, and noise-induced HL is preventable by reducing environmental noise. Lack of economic analyses of HL impacts means that prevention and treatment remain a low priority for public health and environmental investment. Method This article estimates the costs of HL on productivity by building on established estimates for HL prevalence and wage and employment differentials between those with and without HL. Results We estimate that HL affects more than 13% of the working population. Not all HL can be prevented or treated, but if the 20% of HL resulting from excessive noise exposure were prevented, the economic benefit would be substantial—we estimate a range of $58 billion to $152 billion annually, with a core estimate of $123 billion. We believe this is a conservative estimate, because consideration of additional costs of HL, including health care and special education, would likely further increase the benefits associated with HL prevention. Conclusion HL is costly and warrants additional emphasis in public and environmental health programs. This study represents an important first step in valuing HL prevention—in particular, prevention of noise-induced HL—where new policies and technologies appear promising.

The influence of noise in vehicles on the driver’s subjective evaluation of driveability

2017 ◽  
Vol 232 (11) ◽  
pp. 1494-1500
Author(s):  
Hyoseong Wi ◽  
Jinil Park ◽  
Jonghwa Lee
Keyword(s):  
Fuel Economy ◽  
Noise Level ◽  
Subjective Evaluation ◽  
Engine Performance ◽  
Operating Conditions ◽  
Vehicle Noise ◽  
Noise Characteristics ◽  
Noise Frequency ◽  
Influence Of Noise ◽  
Physical Quantities

Driveability, including maneuverability, stability, and riding quality, is one of the most important factors determining the marketability of vehicles. However, unlike fuel economy or engine performance, driveability is very difficult to be evaluated quantitatively. With regard to research on vehicle noise related to driveability, existing works mainly deal with quantification or improvement methods. In this study, the various physical quantities regarding vehicle operating conditions were measured and the noise characteristics were manipulated in several ways to evaluate and analyze the influence of noise on subjective drivability. The results show that the noise level as well as noise frequency characteristics are influencing the drivers’ subjective evaluation of driveability.

Paper 16: A Study of Tractor Noise Control

1969 ◽  
Vol 184 (17) ◽  
pp. 149-169
Author(s):  
J. Matthews ◽  
J. D. C. Talamo
Keyword(s):  
Hearing Loss ◽  
Diesel Engine ◽  
Noise Reduction ◽  
Noise Level ◽  
Exhaust System ◽  
Low Noise ◽  
Acoustic Features ◽  
Noise Levels ◽  
Engine Design ◽  
High Incidence

A high incidence of hearing loss has been encountered among tractor drivers, and noise levels are shown to be further increased by the addition of cabs, particularly those which are structurally strong to resist crushing if the vehicle overturns. Some reductions in the noise level of the operator's environment can be obtained by covering the engine or by exhaust system modifications, while possible future improvements to diesel engine design may effect a significant improvement. However, it is proposed that noise reduction is likely to be achieved by attention to acoustic features of the operator's cab. The inclusion of resilient mounts, substantial floors and bulkheads, and acoustically absorbent linings are all shown to provide worthwhile improvements and, in combination, these measures can reduce noise levels from more than 100 dBA to 90 dBA or less. Where the tractor is fitted with a safety frame only, a low noise fabric cladding is shown to be feasible.

scholarly journals Hearing loss is associated with delayed neural responses to continuous speech

2021 ◽  
Author(s):  
Marlies Gillis ◽  
Lien Decruy ◽  
Jonas Vanthornhout ◽  
Tom Francart
Keyword(s):  
Hearing Loss ◽  
Speech Processing ◽  
Noise Level ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Neural Responses ◽  
Continuous Speech ◽  
Processing Efficiency ◽  
Sound Amplification ◽  
The Impact

AbstractWe investigated the impact of hearing loss on the neural processing of speech. Using a forward modelling approach, we compared the neural responses to continuous speech of 14 adults with sensorineural hearing loss with those of age-matched normal-hearing peers.Compared to their normal-hearing peers, hearing-impaired listeners had increased neural tracking and delayed neural responses to continuous speech in quiet. The latency also increased with the degree of hearing loss. As speech understanding decreased, neural tracking decreased in both population; however, a significantly different trend was observed for the latency of the neural responses. For normal-hearing listeners, the latency increased with increasing background noise level. However, for hearing-impaired listeners, this increase was not observed.Our results support that the neural response latency indicates the efficiency of neural speech processing. Hearing-impaired listeners process speech in silence less efficiently then normal-hearing listeners. Our results suggest that this reduction in neural speech processing efficiency is a gradual effect which occurs as hearing deteriorates. Moreover, the efficiency of neural speech processing in hearing-impaired listeners is already at its lowest level when listening to speech in quiet, while normal-hearing listeners show a further decrease in efficiently when the noise level increases.From our results, it is apparent that sound amplification does not solve hearing loss. Even when intelligibility is apparently perfect, hearing-impaired listeners process speech less efficiently.

scholarly journals The Acceptable Noise Level Benefit From Directionality for Listeners With Severe Hearing Loss

2018 ◽  
Vol 11 (3) ◽  
pp. 166-173 ◽  
Author(s):  
Mina Aghsoleimani ◽  
Hamid Jalilvand ◽  
Mohammad Ebrahim Mahdavi ◽  
Ahmad Reza Nazeri ◽  
Mohammad Kamali
Keyword(s):  
Hearing Loss ◽  
Noise Level ◽  
Severe Hearing Loss ◽  
Acceptable Noise Level

scholarly journals Noise Pollution and Its Correlations with Occupational Noise-Induced Hearing Loss in Cement Plants in Vietnam

2021 ◽  
Vol 18 (8) ◽  
pp. 4229
Author(s):  
Tinh Thai ◽  
Petr Kučera ◽  
Ales Bernatik
Keyword(s):  
Hearing Loss ◽  
Noise Level ◽  
Noise Exposure ◽  
Noise Pollution ◽  
Noise Induced Hearing Loss ◽  
Exposure Limit ◽  
Global Issue ◽  
Exposed Workers ◽  
Almost All ◽  
Cement Grinding

Noise-Induced Hearing Loss (NIHL) is a global issue that is caused by many factors. The purpose of this study was to survey noise level to identify NIHL and its relationship with other factors in cement plants in Vietnam. Noise level was measured at one cement plant and three cement grinding stations located in the South of Vietnam. The audiometric data of exposed workers were surveyed to determine NIHL. Finally, the relationship between NIHL and noise level in cement plants was determined. The results show that noise level in almost all processes exceeded the permissible exposure limit (PEL). In this study, 42 cases (10% of exposed workers) with occupational NIHL were found with mean age (SD) of 49 (9.0) years. All NIHL cases were found in the departments in which the noise level exceeded the PEL, which included quarry (n = 16), maintenance (n = 12), production (n = 10), co-waste processing (n = 3) and quality assurance (n = 1). There was a positive and significant correlation between the NIHL and the excessive noise exposure in the cement plants (r = 0.89, p = 0.04).

The Effect of Continuous Monaural Noise on Loudness Matches to Tinnitus

1988 ◽  
Vol 31 (1) ◽  
pp. 98-102 ◽  
Author(s):  
M. J. Penner
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Auditory System ◽  
Noise Level ◽  
Sensorineural Hearing ◽  
Peripheral Auditory System

Data from two psychophysical tasks are presented. In the first, 8 subjects with sensorineural hearing loss and tinnitus adjusted the intensity of a continuous monaural noise to mask the tinnitus. In the second, in the presence of continuous monaural noise, the same subjects adjusted the intensity of a pulsed monaural tone to match the loudness of the tinnitus. The tone was either ipsilateral or contralateral to the noise. Although the noise level required to mask the tinnitus increased substantially, as did the level of the ipsilateral matching tone, the change in the level of the contralateral matching tone was minimal. One possible explanation of these findings is related to the functioning of the peripheral auditory system.

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