Evaluating the directional effects of acoustic horn style hearing aids using the QuickSIN procedure

This paper evaluates the directional effects of two hearing devices – an antique London Dome horn style device and a constructed Cupped Hand. The comparisons were made using the Quick SIN (Speech in Noise) adaptive test which measures signal-to-noise ratio loss.

The effectiveness of noise cancellation headphones for hearing impaired listeners

This paper discusses the use of noise cancellation headphones for hearing aid users to reduce background noise in order to improve speech discrimination.

Differences in performance in noise between conventional hearing aids and radiant multimicrophone beamforming technology

This paper discusses the results of a study to determine the differences between hearing aids and radiant beamforming technology.

Noise exposure impact in a manufacturing environment: A hearing conservation program needs assessment

This paper examines a study conducted to evaluate the impact of occupational noise exposure and the role of a hearing conservation program in the occupational setting.

Auditory and audio-visual reception of words in noise by observers with normal and impaired hearing

This dissertation examines auditory perception and audio-visual reception in noise for both hearing-impaired and normal hearing persons, with a goal of determining some of the noise conditions under which amplified acoustic cues for speech can be beneficial to hearing-impaired persons.

The effects of earmuffs and hearing impairment on word discrimination in noise

This paper discusses a study to determine selection of hearing protective devices to ensure optimum speech discrimination.

Differential sensitivity to tonal frequency and to the rate of modulation of broad-band noise by hearing-impaired listeners

This dissertation examined whether a hearing impairment of the auditory end-organ has the same or a differential effect on the place and periodicity processes. Differential sensitivities for four normally hearing listeners and for both ears of five patients with unilateral Meniere’s disease were measured for tonal frequency and rate of sinusoidally amplitude-modulated noise at common frequencies and rates of the stimulus.

An analysis of the effect of audiologic management on a newborn hearing screening program's refer and loss to follow-up rates

This study includes an exhaustive review of the literature related to universal newborn hearing screening and loss to follow-up. It examines refer and follow-up rates in Missouri and highlights three successful newborn hearing screening programs under the same audiologic management.

Early linguistic development as seen in four young profoundly hearing impaired children

This paper studies the linguistic development of four profoundly hearing-impaired children, and how the children induced rules for developing linguistically.

Occupational hearing conservation in a rural woodworking company

This paper discusses a study to evaluate noise exposure and hearing thresholds of workers in a small woodworking company in a rural area.

Noise exposure in high school aged youths and distortion product otoacoustic emissions

This paper discusses the effect of noise exposure on high school aged boys' hearing levels and how to measure the effects.

Acoustical barriers to communication and hearing

This study examined the acoustical conditions, including the surface-dimension measurements, background noise levels, and reverberation times in classrooms in a metropolitan area. The data collected in this study will help school administrators realize that appropriate classroom acoustics are necessary for both hearing impaired and normal hearing students.

An educational curriculum outline for teaching sound and hearing in elementary schools

This paper provides curriculum on noise, ears, hearing and deafness for elementary school children.

A study of threshold and loudness summation in normal-hearing listeners

This paper presents some normative data on the relation between the perceived loudness of third-octave bands of noise and that of broad-band noise. The study used normally-hearing listeners and was used as a control study for a parallel study done with hearing impaired listeners.

Evaluation of noise levels experienced by medically fragile neonates during emergency helicopter transport

There was a concern medically fragile infants may be exposed to high noise levels during emergency helicopter transport. This study had been initiated in 2007. Data was collected using a Larson Davis noise dosimeter. The purpose of this study was to collect additional data to evaluate the noise exposure experienced by medically fragile neonates during emergency transport via helicopter inbound/outbound of St. Louis Children’s Hospital, St. Louis, MO. The results suggested neonates may be exposed to noise levels ranging 85 to 95 dBA during transport. These high noise exposures may pose a risk to hearing.