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.

The effects of special lighting on the lipreading performance of profoundly deaf children

This paper is a review of a study to determine optimum lighting conditions to facilitate lipreading.

Monaural and binaural loudness summation of speech

This paper reviews a study to determine optimum hearing aid settings based on loudness.