DPOAE measurements in factory workers with cochlear hearing loss

The main aim of the study was to find a correlation between the pure-tone threshold measured
by a classic audiometer and estimated from input/output function of distortion product
otoacoustic emission. The measurements were performed for a group of 27 factory workers
and a control group of 10 young subjects with normal hearing (YNH). The interrelations between
the results of these two methods were analyzed with respect to all measured frequencies
and for six groups of subjects representing different characteristics of audiograms. The UCL
(uncomfortable level) influence on I/O-functions was also considered.