Hearing is the link by which the newborn comes in contact with the world of sound and language. Sense of hearing is a gift to mankind from god, as hearing and speech are the cornerstones of communication. Speech is intimately related to hearing because those with impaired hearing often have speech delay. The aim of the study was to analyze the effectiveness of BERA (Brain stem evoked response a...

Draft ANSI S12.13 1991 Standard Evaluating the Effectiveness of Hearing Conservation Programs presents statistical protocols purportedly sensitive to temporary threshold shift (TTS) in occupational hearing conservation program (HCP) audiometric databases. Because it is well established that less TTS is found in humans with hearing loss than in those with essentially normal hearing, one might pr...

Background: Hearing is the ability to perceive sound. A person said have hearing loss when he/she not able hear as well someone with a normal threshold of 25 dB or better in both ears. Binocular function plays an important role it helps coordinate eyes.Methodology: prospective study was conducted 103 subjects. After taking permission authority and impairment school, consent taken from participa...

This paper describes the estimation of hearing thresholds in normal-hearing and hearing-impaired subjects on the basis of multiple-frequency auditory steady-state responses (ASSRs). The ASSR was measured using two new techniques: (i) adaptive stimulus patterns and (ii) narrow-band chirp stimuli. ASSR thresholds in 16 normal-hearing and 16 hearing-impaired adults were obtained simultaneously at ...

Ideal binary time-frequency masking is a signal separation technique that retains mixture energy in time-frequency units where local signal-to-noise ratio exceeds a certain threshold and rejects mixture energy in other time-frequency units. Two experiments were designed to assess the effects of ideal binary masking on speech intelligibility of both normal-hearing (NH) and hearing-impaired (HI) ...

Introduction: Neonatal hyperbilirubinemia is one of the most important factors affecting the auditory system and can cause sensorineural hearing loss. This study investigated the relationship between behavioral hearing thresholds in children with a history of jaundice and the maximum level of bilirubin concentration in the blood.   Materials and Methods: This study was performed on 18 children...

The objective of the study was to assess the safety of the HyperSound® Audio System (HSS), a novel audio system using ultrasound technology, in normal hearing subjects under normal use conditions; we considered pre-exposure and post-exposure test design. We investigated primary and secondary outcome measures: i) temporary threshold shift (TTS), defined as >10 dB shift in pure tone air conductio...

PURPOSE To study the effect of noise on speech rate judgment and signal-to-noise ratio threshold (SNR50) at different speech rates (slow, preferred, and fast). RESEARCH DESIGN Speech rate judgment and SNR50 tasks were completed in a normal-hearing condition and a simulated hearing-loss condition. STUDY SAMPLE Twenty-four female and six male young, normal-hearing participants. RESULTS Spee...

Renal failure result in accumulation of nitrogenous waste in the body it is reversible in acute renal failure and irreversible deterioration of renal function leading to progressive destruction of nephrons in chronic renal failure (CRF). There is uremia, hyponatremia, hypertension and fluid retention in CRF causes direct and indirect effect on the inner ear including audiovestibular apparatus. ...