preface

Chapter 1: Understanding Sound and Hearing Loss
1.
Generation and transmission of sound
2.
basic unit of sound
3.
Characteristics of sound
4.
Characteristics of promissory notes
5.
Characteristics of hearing loss

Chapter 2: History and Classification of Hearing Aids
1.
History of Hearing Aids
2.
Types of hearing aids

Chapter 3: Basic Structure and Function of Hearing Aids
1.
Basic Electrical and Electronic Engineering
2.
Basic structure and function of hearing aids

Chapter 4 Hearing Aid Performance Evaluation
1.
Psychoacoustic verification
2.
Measurement of electroacoustic properties

Chapter 5 Earplugs and Hearing Aid Body
1.
earring
2.
Hearing aid body
3.
Material of earmuffs and hearing aid body
4.
Ventilation, acoustic filters and sound ducts

Chapter 6 Real-time measurement
1.
Basic knowledge of real-time measurement
2. REM method and interpretation
3.
Recent REM trends

Chapter 7 Amplification System
1.
Linear and nonlinear amplification systems
2.
Multichannel amplification system
3.
Programmable amplification system
4.
Multi-Memory Amplification System
5.
Frequency lowering amplification system
6.
digital amplification system
7.
Directional transmitter

Chapter 8 Hearing Aid Fitting Formula
1.
History of Hearing Aid Fitting Formulas
2.
Hearing aid fit formula for linear amplification systems
3.
Hearing aid fit formula for nonlinear amplification systems
4.
Optimal gain and frequency response curves
5.
Output sound pressure level 90 and maximum output
6.
Compression threshold and compression ratio
7.
Compression time and decompression time

Chapter 9: Choosing a Hearing Aid and Taking Ear Impressions
1.
Selection of wearers
2.
Choosing the right ear for your hearing aid
3.
Select hearing aid specifications
4.
Ear impression collection

Chapter 10 Hearing Aid Suitability Confirmation
1.
Check before wearing
2.
Check the wearing condition
3.
Check hearing aid adjustment

Chapter 11: Solving Problems in Hearing Aid Fitting
1.
Problems with using hearing aids
2.
Problems with volume and sound quality
3.
Problems with bill recognition
4.
Problems with noise
5.
Deformation of the hearing aid body or earpiece
6.
Other Hearing Aid Problems and Solutions

Chapter 12 Counseling and Education for the Hearing Impaired
1.
Hearing Aid Compliance Management Procedure
2.
Customer information consultation
3.
Consultation on hearing test results
4.
Choosing a hearing aid
5.
Fitting and adjusting hearing aids
6.
Confirmation of hearing aid suitability
7.
Auditory training
8.
Aftercare
9.
etc

Chapter 13 Auditory Training
1.
What is auditory training?
2.
The effects of auditory training
3.
Considerations for Auditory Training
4.
Auditory training case

Chapter 14 Special Hearing Aids and Listening Assistive Devices
1. FM system
2.
Infrared system
3.
Wired or induction loop system
4.
Bone conduction hearing aid
5.
Cross hearing aid
6.
Tinnitus masker
7.
tactile hearing aid
8.
assistive listening devices

Chapter 15 Implantable Hearing Devices
1.
Structure and function of artificial cochlea
2.
Proper management of artificial cochlea
3.
Other implantable hearing devices
4.
Conclusion

Chapter 16 Hearing Aid Appropriateness for Children
1.
Physical characteristics of children
2.
Characteristics of speech perception and language development according to age and degree of hearing loss
3.
Hearing Aid Fitting Procedure for Children

[Appendix 1] HAI-V1 Fitting Formula
[Appendix 2] List of Korean Standard Speech Hearing Tests
[Appendix 3] ISO 21388 Hearing Aid Compliance Management Certification System