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Development and Validation of the HINT Sentence Test in German
18 April 2018 (online)
With the development of the HINT sentence test (hearing in noise test) at the House Ear Institute in Los Angeles, the idea was pursued to set up a language test in quiet and noise for experimental and clinical applications. The preparation and validation of the HINT sentence test in German is presented in this study.
The test sentences were generated with a syllable length of 6 – 8 syllables, which correspond to the written language of children in the age range 6 – 8 years (childLex database). After evaluation by speech therapists regarding incidence in everyday life, 334 sentences were selected and recorded with a male speaker. The process of intelligibility matching was performed with n = 28 subjects:
From the recorded and edited sentences, the performance intensity function is determined to investigate the correlation between signal-to-noise ratio and intelligibility for all sentences.
By iterative change of the level, the individual sentences are adjusted to equal intelligibility.
Lists of 10 sentences are generated, which have been tested and combined into the final HINT lists of 20 sentences in order to achieve an as homogeneous intelligibility as possible.
Finally, reference data of the speech reception threshold (SVS) of the sentence test is collected on n = 10 subjects.
As a result of the reference data collection, the SVS in quiet is 16.6 ± 1.5 dB SPL and in noise S0N0 – 5.9 ± 0.8 dB SNR.
The HINT sentence test in German provides a validated test, which will now be available in 23 languages and will be used in international multi-center studies in particular.