Electronic modeling of human ear

number: 
2369
إنجليزية
Degree: 
Author: 
Mais Odai AbdulRassul Jaffar
Supervisor: 
Dr. Sadiq J. Abbas
year: 
2010

Electronic model of human ear is a simplified representation of the auditory system for the purposes of analyzing this system. It allows one to observe more closely the behavior of the system and to make predictions regarding its performance under altered input conditions and different system parameters. Modeling of the human ear function has been described by adopting various approaches and a comparison between different models of the human ear was made. In this project lumped- parameter model have been used for the modeling of human ear function and a study was made in Baghdad teaching hospital on twenty people aged between 6 to76 years old by using two devices which are the pure tone audiometer and the tympanometer. Visual Basic program version 6.0 is used on the data obtained in this study in order to determine the type of the hearing loss for the patients as this model is suitable for patients with middle ear dysfunction. The obtained results of the electronic model of the middle ear show that the frequencies above 17.5 kHz will be removed. That is due to the middle ear can not deal with frequencies above 20 kHz and the type of the hearing loss can be determined directly by using a program that analyzes the data obtained from the patient by using pure tone audiometer and tympanometer devices.