Hearing aid benefit outcomes using automated real-ear measurements versus manufacturer's first fit

Abstract

The aim of this study is to explore the differences in hearing benefit outcomes between automated real ear measurements and the manufacturer's first fit in hearing aids. The objective of this study is to investigate any significant differences, present in speech-in-noise recognition using integrated real ear measurements versus manufacturer's first fit using The Maltese Speech-in-Noise Test. Experimental research, which is a method of quantitative research was used. Pretest and posttest were the mode of assessment, using a ‘one-group pretest-posttest design’. A singular group of Maltese-speakers aged 49-75 years old underwent a pretest - Maltese Speech-in-Noise Test, to establish the baseline of the subjects with fittings using manufacturer’s first fit. Following this, they received the experimental intervention through fitting with automated REMs, after which a posttest, M-SINT, was administered. Findings indicate no statistically significant difference observed between the results of the two tests. There was no significant relationship between age group and difference in SRT score in Test 1 and Test 2. The same observation was noted for gender group. Minor trends were noted across groups. Whilst this could be due to minimal difference between manufacturer’s first fit and fitting using REMs, this lack of significant difference could be attributed to the limited pool of participants recruited and poor balance between groups. Further research exploring the benefit outcomes of hearing aid programming using integrated REMs and manufacturer's first fit, using both subjective and objective outcome measures of hearing aid programming, is recommended.