A STUDY OF THE POSSIBILITY OF ACQUIRING NOISE-INDUCED HEARING LOSS BY THE USE OF PERSONAL CASSETTE PLAYERS (WALKMAN).

 

Table Of Contents


Chapter ONE

INTRODUCTION

  • 1.1Introduction
  • 1.2Background of Study
  • 1.3Problem Statement
  • 1.4Objective of Study
  • 1.5Limitation of Study
  • 1.6Scope of Study
  • 1.7Significance of Study
  • 1.8Structure of the Research
  • 1.9Definition of Terms

Chapter TWO

LITERATURE REVIEW

  • 2.1Overview of Noise-Induced Hearing Loss
  • 2.2Historical Perspective on Noise-Induced Hearing Loss
  • 2.3Causes of Noise-Induced Hearing Loss
  • 2.4Effects of Noise-Induced Hearing Loss
  • 2.5Prevention and Management of Noise-Induced Hearing Loss
  • 2.6Studies on Noise-Induced Hearing Loss
  • 2.7Technologies Impacting Noise-Induced Hearing Loss
  • 2.8Societal Implications of Noise-Induced Hearing Loss
  • 2.9Behavioral Aspects of Noise-Induced Hearing Loss
  • 2.10Future Trends in Research on Noise-Induced Hearing Loss

Chapter THREE

RESEARCH METHODOLOGY

  • 3.1Research Design
  • 3.2Sampling Methods
  • 3.3Data Collection Techniques
  • 3.4Data Analysis Methods
  • 3.5Ethical Considerations
  • 3.6Research Instruments
  • 3.7Variables Definition
  • 3.8Research Assumptions

Chapter FOUR

DATA PRESENTATION AND ANALYSIS

  • 4.1Overview of Findings
  • 4.2Presentation of Data
  • 4.3Analysis of Data
  • 4.4Comparison with Existing Literature
  • 4.5Interpretation of Results
  • 4.6Discussion on Key Findings
  • 4.7Implications of Findings
  • 4.8Recommendations for Future Research

Chapter FIVE

SUMMARY, CONCLUSION AND RECOMMENDATIONS

  • 5.1Summary of Findings
  • 5.2Conclusion
  • 5.3Contributions to Knowledge
  • 5.4Practical Implications
  • 5.5Limitations of the Study
  • 5.6Recommendations for Practice
  • 5.7Recommendations for Policy
  • 5.8Suggestions for Further Research

Project Abstract

Playing various types of music on five selected personal cassette players (PCPs), A-weighted sound pressure levels (SPLs), together with octave band spectrum, were measured on KEMAR (Knowles Electronics Manikin for Acoustic Research). Maximum and equivalent SPLs were measured for various types of music, PCPs and for different gain (volume) settings.The measured SPL-values on KEMAR ear were transformed to field values outside the ear canal by means of corrections based on KEMAR’s ear canal resonance curve–in order to compare measured values with the Norwegian national noise risk criteria. Temporary threshold shift (TTS) was measured after listening to PCP music for one hour in order to obtain additional information about possible risk of hearing damage.TTS values are presented for six subjects when playing two different pop music cassettes on one type PCP. Our analysis indicates that the risk for permanent noise-induced hearing loss from listening to PCP is very small for normal listening conditions.

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