Speech intelligibility in different types of audiograms and speech audiometry by using the simulated hearing loss on the speech material with normal hearing people

Abstract

Presbycusis and noise-induced hearing loss result in characteristic audiogram curves with increasing levels of hearing loss at higher frequencies. Another specific form of audiogram curve is the cookie bite, which is often the result of inherited hearing loss and sometimes the result of illness or injury. The influence of the hearing loss on speech intelligibility was examined along with a list of words selected according to the frequency range of the phonemes present. Dependence of speech intelligibility and frequency of dominant hearing loss, at lower, middle and higher frequencies and over the whole range is shown. The method of speech audiometry with the simulated hearing loss on the speech material and the normal hearing people is presented.