Inserted a big size of rubber ear phone cover into the nose is rare case.Foreign body regarding children common and need to be seriously considered.Nowadays, using an earphone for music players games isverycommon among that more cautious.In general practitioner’s practice, several limitations seen with no fully equipped emergency trolley, anaesthetic set up X ray. In this case report, we report...

A masking dilemma occurs when energy from a non-test ear crosses over the head to a test ear. In cases of bilateral atresia, obtaining thresholds on the poorer ear is problematic. Near threshold, however, sufficient ear-bone isolation exists to test with validity but not so much above threshold, even for the ultra-high (> 10 kHz) frequencies. This aspect of the bone audiogram should not be over...

The analysis of hearing mechanisms and research on the influence of various internal (pathologies, ageing) and external (trauma, vibration, noise) factors on sound perception are usually done using acoustic waves induced in the external ear canal. Stimuli which have been used for this purpose are: clicks, tone bursts, half-sine-waves, single tones or pairs of tones. The Corti organ’s responses ...

We present results of our study in localization of the auditory evoked magnetic field measured by a noncryogenic potassium vapour atomic magnetometer (PVAM) [5]. The magnetometer was operating in a spin-exchange relaxation-free (SERF) regime at low magnetic flux densities and high alkali-metal vapour density [1]. Audio stimulation of short 1 kHz pulse trains was applied by a pneumatic earphone....

Pure-tone air-conduction audiometry has become the foundation of hearing assessment. The audiometer, and in particular the earphones used with it, need to be calibrated to ensure measurement traceability. Hearing threshold measurements are then referred to established reference levels to then judge if any hearing loss is present. Ear simulators are used in this process to provide an objective m...

INTRODUCTION The ear can be damaged by excessive noise levels. Noise can arise from variety of occupational/recreational sources causing tinnitus, hearing loss and hyperacusis. The use of different types of ear phones for entertainment has become very common/fashionable among our youths. OBJECTIVES This research aims to determine the prevalence of use of ear phones for entertainment and the p...

OBJECTIVE To test the hypothesis that some of the abnormal sensory perceptions that characterize autism may be explained by an abnormal activation of non-classical (extra-lemniscal) sensory pathways. METHODS Twenty-one individuals, 18--45 years of age who were diagnosed with autism participated in the study. Sounds (clicks presented at a rate of 40 per second and 65 dB above the normal thresh...

PURPOSE Hearing loss can lead to a number of disabilities and can reduce quality of life. Noise-induced hearing losses have become more common among adolescents due to increased exposure to personal music players. We, therefore, investigated the use of personal music player among Korean adolescents and the relationship between hearing threshold and usage pattern of portable music players. MAT...

The SmartVision prototype is a small, cheap and easily wearable navigation aid for blind and visually impaired persons. Its functionality addresses global navigation for guiding the user to some destiny, and local navigation for negotiating paths, sidewalks and corridors, with avoidance of static as well as moving obstacles. Local navigation applies to both inand outdoor situations. In this art...

In Augmented Reality Audio (ARA) applications the real sound environment of the user is extended with virtual objects. The real environment is reproduced as a pseudo-acoustic world via a special ARA headset that consists of binaural microphones and headphones. In augmented reality audio, one of the problems is a perceived effect of having the virtual source localized inside the listener’s head....