Detection of wave v using continuous wavelet transform and instanstaneous energy for hearing loss

Abstract

Hearing screening is an essential test to detect hearing ability of someone. A good hearing ability is absolutely necessary for a normal speech development. In cases with pronounced hearing loss even no speech ability will develop at all causing serious communication problems and impaired intellectual and emotional development. Auditory brainstem response is a well known method that has been used on detection of hearing problem. An alternative method was also introduced in this thesis in detecting the hearing loss problem. Evoked potentials are used because they can indicate problem along nerve pathways that are too subtle to show up during neurologic examination or to be noticed by the person. This description may not be visible on magnetic resonance imaging test. This study proposes methods of identifying hearing loss based on continuous wavelet transforms (CWT) and instantaneous energy (IE). Study showed that the IE performed better than the CWT with the sensitivity of 0.88 and specificity of 0.81 compared to the CWT with the sensitivity of 0.63 and specificity of 0.83. Significance of the results is 0.42.This experiments result can be used as a basis to improve methods of detection hearing loss.