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Development of a Danish speech intelligibility test

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Authors:
  • Nielsen, Jens Bo ;
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    Orcid logo0000-0003-3870-5105
    Hearing Systems, Department of Electrical Engineering, Technical University of Denmark
  • Dau, Torsten
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    Orcid logo0000-0001-8110-4343
    Hearing Systems, Department of Electrical Engineering, Technical University of Denmark
DOI:
10.1080/14992020903019312
Abstract:
Abstract A Danish speech intelligibility test for assessing the speech recognition threshold in noise (SRTN) has been developed. The test consists of 180 sentences distributed in 18 phonetically balanced lists. The sentences are based on an open word-set and represent everyday language. The sentences were equalized with respect to intelligibility to ensure uniform SRTN assessments with all lists. In contrast to several previously developed tests such as the hearing in noise test (HINT) where the equalization is based on scored (objective) measures of word intelligibility, the present test used an equalization method based on subjective assessments of the sentences. The new equalization method is shown to create lists with less variance between the SRTNs than the traditional method. The number of sentence levels included in the SRTN calculation was also evaluated and differs from previous tests. The test was verified with 14 normal-hearing listeners; the overall SRTN lies at a signal-to-noise ratio of -3.15 dB with a standard deviation of 1.0 dB. The list-SRTNs deviate less than 0.5 dB from the overall mean.
Type:
Journal article
Language:
English
Published in:
International Journal of Audiology, 2009, Vol 48, Issue 10, p. 729-741
Keywords:
Speech intelligibility assessment; Speech perception; HINT; Equalization of intelligibility
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2009
Scientific Level:
Scientific
ID:
113991824

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