INTRODUCTION Noise is a major cause of health disorders in workers and has unique importance in the auditory analysis of people exposed to it. The purpose of this study is to evaluate the arithmetic mean of the auditory thresholds at frequencies of 3, 4, and 6 kHz of workers from five professional categories exposed to occupational noise. METHODS We propose a retrospective cross-sectional coh...

X-linked adrenoleukodystrophy (X-ALD) is characterized by demyelination that is associated with a deficient beta-oxidation of very long chain fatty acids. We report the unusual case of a male adult with X-ALD who was diagnosed at the age of 26 by a brain MRI performed because his brother had been diagnosed with a rapidly deteriorating form of X-ALD. His sole symptom was hearing difficulties in ...

ISSN: 2231-5381 http://www.ijettjournal.org Page 106 Abstract: Finite impulse response (FIR) filters and filter banks contains specific properties as good stability as well as linear-phase can be easily achieved. hence, they are popular in many applications such as communication systems, audio signal processing, biomedical instruments. Based on these properties we can implement FIR filter bank ...

Distortion product otoacoustic emission (DPOAE) growth functions reflect the active nonlinear cochlear sound processing when using a primary-tone setting which accounts for the different compressions of the two primaries at the DPOAE generation site and hence provide a measure for objectively assessing cochlear sensitivity and compression. DPOAE thresholds can be derived from extrapolated DPOAE...

BACKGROUND AND OBJECTIVES High-dose systemic steroid therapy is the mainstay treatment for sudden sensorineural hearing loss (SSNHL). Recovery rates from SSNHL range are about 47-63% and are influenced by various prognostic factors. To evaluate the prognostic value of specific clinical parameters, we reviewed 289 cases by clinical and statistical analysis. SUBJECTS AND METHODS This study incl...

OBJECTIVES This study aims to compare different therapy methods used for sudden sensorineural hearing losses, to determine the prognostic factors and particularly to investigate the importance of starting the therapy within the first three days of the prognosis. PATIENTS AND METHODS Between January 1995 and December 2008, the files of 213 patients who were treated in our clinic were reviewed....

The pure-tone audiogram gives a limited information about the r esidual hearing of hearing-impaired subjects. This i s especially the case when the hearing loss is severe or profound. In these cases often wide variations a r e obtained in results on speech-discrimination tests for the same degree of hearing loss. In some cases it i s likely that the puretone audiogram only shows tactile sensati...