Binaural Discrimination Of “Everyday” Speech

Abstract

The binaural intelligibility of Pb-words in 9 indoor everyday listening situations is tested on 63 persons with bilateral sensori-neural losses and 22 normals. A group with bilateral sensori-neural loss of 50 dB or more on 3 000 Hz and above and normal hearing up to and including 2 000 Hz have 2545 % lesser scores than normals. The corresponding figures for bilateral normal hearing up to 3 000 Hz and bilateral sensori-neural loss of 50 dB or more on 4 000 Hz and above is 5515%. In quiet there is about 5% difference between normals and these groups.