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Introduction to Hearing Aids

Course Code: HEAR 1111
Credits: 3.0
Semester: 15 weeks
Learning Format: Lab
Typically Offered: TBD. Contact Department Chair for more info.
course overview

This course provides an introduction to hearing aids including styles, structure, internal electronics, troubleshooting, general repairs, and basic function. A variety of common fitting formulas and signal processing strategies will also be compared. Students will be introduced to common ear mold designs and how to select the appropriate style based on acoustic requirements.

Course Content

  1. History of hearing aids
  2. Hearing aids, available designs, internal structures, and functions
  3. Linear and non-linear signal processing
  4. Earmold design and material selection based on degree of hearing loss
  5. Hearing aid and earmold repairs
  6. Industry standard fitting formulas
  7. The path of sound through a hearing aid
  8. Physical modification of hearing aids and earmolds
  9. Troubleshooting for different types of hearing aid malfunction
  10. Hearing aid battery size and drain

Methods of Instruction

  1. Laboratory lecture
  2. Application exercises in lab
  3. Independent study of courseware
  4. Proficiency tests
  5. Laboratory assignments

Means of Assessment

Evaluation will be carried out in accordance with Douglas College policy. The instructor will present a written course outline with specific evaluation criteria at the beginning of the semester. Evaluation will be based on the following:


Lab assessments 10-20%

Written tests 10-20%

Written midterm examination 10-20%

Lab practical midterm examination 10-20%

Final examination 20-35%



Learning Outcomes

Upon completion of this course, the student will be able to:

 1. Explain the internal structures and the functions of a modern hearing aid
 2. Explain the differences between hearing aid styles and the limitations for different types of  hearing loss
 3. Explain the differences in signal processing strategies between analog and digital technology
 4. Explain how sound is modified within a hearing aid prior to entering the ear
 5. Explain how to test basic hearing aid functions and identify when additional troubleshooting is required
 6. Explain how hearing aid fittings can affect sound quality
 7. Explain how different physical modifications to hearing aids and earmolds can affect sound
 8. Explain the differences between various industry standard hearing aid fitting formulas from past to present
 9. Explain the differences in earmold materials used based on degree of hearing loss                                    
10.Explain the different battery sizes available in addition to battery drain calculation

course prerequisites



HEAR 1100, HEAR 1101, HEAR 1112

curriculum guidelines

Course Guidelines for previous years are viewable by selecting the version desired. If you took this course and do not see a listing for the starting semester/year of the course, consider the previous version as the applicable version.

course schedule and availability
course transferability

Below shows how this course and its credits transfer within the BC transfer system. 

A course is considered university-transferable (UT) if it transfers to at least one of the five research universities in British Columbia: University of British Columbia; University of British Columbia-Okanagan; Simon Fraser University; University of Victoria; and the University of Northern British Columbia.

For more information on transfer visit the BC Transfer Guide and BCCAT websites.


If your course prerequisites indicate that you need an assessment, please see our Assessment page for more information.