Abstract
The aim of this study was to examine the monosyllable intelligibility test and subjective evaluation of the reading voice. This study involved 5 hearing-impaired subjects using 5 hearing aids (Behind The Ear). Hearing aids with the directional microphone and noise reduction system showed a higher speech discrimination score under noise than the others. In general, on hearing aids selection, the requirements are better speech intelligibility and natural sounds. No significant correlation was observed between the speech discrimination score and the sound quality evaluation results of reading speech under condition of noise. Thus, even if hearing aids provide high speech intelligibility, the sound quality does not always suit a subject’s preference. Therefore, both speech intelligibility and subjective evaluation should be tested.