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Applications of the NTID speech recognition test (NSRT(®))
Wayne M Garrison1, Joseph H Bochner1
1a National Technical Institute for the Deaf, Rochester Institute of Technology , Rochester , USA.
International Journal of Audiology
|July 25, 2015
Summary
The non-invasive speech recognition test (NSRT) accurately predicts hearing thresholds for adults with mild to moderate hearing loss. This self-administered tool offers insights into speech understanding difficulties and aids in auditory training program design.
Area of Science:
- Audiology
- Speech-Language Pathology
- Hearing Science
Background:
- Hearing loss diagnosis often requires clinical visits.
- Self-administered audiological tools can improve accessibility.
Purpose of the Study:
- To evaluate the diagnostic accuracy of the adaptive speech recognition protocol (NSRT).
- To assess the NSRT's utility for self-administration in non-clinical settings.
Main Methods:
- 123 adults with normal to moderately severe hearing loss completed audiological evaluations.
- Participants underwent pure-tone testing and the NSRT in quiet and +5 dB SNR conditions.
Main Results:
- NSRT performance strongly correlated with pure-tone thresholds.
- The NSRT effectively estimated hearing thresholds from 0.5 to 8 kHz for individuals with hearing loss between -10 to 55 dB HL.
- Phonetic error analysis provided insights into speech understanding challenges.
Conclusions:
- The NSRT is a valuable tool for predicting hearing thresholds and understanding speech recognition difficulties.
- Results support the NSRT's use as a proxy for clinical hearing tests.
- Findings have implications for developing personalized auditory rehabilitation programs.
