Optimization of the Speech Test Material in a Group of Hearing Impaired Subjects: A Feasibility Study for Multilingual Digit Triplet Test Development.

Autor: Masalski M; Department of Otolaryngology Head and Neck Surgery, Wroclaw Medical University, 50-367 Wroclaw, Poland.; Institute of Biomedical Engineering and Instrumentation, Wroclaw University of Technology, 50-370 Wroclaw, Poland., Adamczyk M; Department of Otolaryngology Head and Neck Surgery, Wroclaw Medical University, 50-367 Wroclaw, Poland., Morawski K; Department of Otolaryngology, Institute of Medical Sciences, University of Opole, 45-401 Opole, Poland.
Jazyk: angličtina
Zdroj: Audiology research [Audiol Res] 2021 Jul 12; Vol. 11 (3), pp. 342-356. Date of Electronic Publication: 2021 Jul 12.
DOI: 10.3390/audiolres11030032
Abstrakt: Background: The development of the global digit-in-noise test requires optimization of each language version on a group of normal-hearing native-speakers. An alternative solution may be an adaptive optimization during ongoing tests in a group of subjects with unknown hearing impairments. The objective of the research was to compare the optimization results between these groups.
Methods: Digit triplets consisting of three pseudo-randomly selected digits were presented in speech-shaped noise at various signal-to-noise ratios (SNRs), according to the protocol of the final speech test. Digit-specific and position-specific speech reception thresholds (SRTs) were determined and compared between groups.
Results: The study sample consisted of 82 subjects, 26 normal-hearing subjects and 56 patients with diverse hearing disorders. Statistically significant differences in digit-specific SRTs between the control and the investigated group were obtained for three digits in continuous noise (digits 0, 4, 6; p -value of 0.04, 0.03, 0.05) and two in modulated noise (digits 1 and 6; p -value of 0.05 and 0.01). An analysis including only ears with SRTs within the range of the normal hearing control group showed no statistically significant differences between digits.
Conclusion: Optimization of speech material can be carried out in a group of subjects with unknown hearing impairments, provided the ears with scores outside normal range are rejected.
Databáze: MEDLINE
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