User-operated speech in noise test: Implementation and comparison with a traditional test

作者：Pedersen Ellen Raben^*; Juhl Peter Moller

来源：International Journal of Audiology, 2014, 53(5): 336-344.

DOI：10.3109/14992027.2013.860486

• Dantale II
• speech intelligibly in noise
• user-operated test
• matrix test
• alternative forced choice
• -button
• discrimination function
• normal-hearing subjects

Objective: The purpose of this study was to implement and evaluate a user-operated speech in noise test. Design: The test is based on the Danish speech material Dantale II, which consists of five words sentences (Wagener et al, 2003). For each word presented the subject selected a response from ten alternative words. Two versions of the test were made: one with and one without the possibility that for each word presented the subject could answer %26quot;I do not know%26quot; (?-button). Using a listening test the two versions were evaluated against a traditional test, where the subjects orally repeated the words that were perceived. Study sample: Twenty-four normal-hearing subjects. Results: The speech intelligibility as a function of the signal-to-noise ratio can be described by logistic functions in the different user-operated tests and in the traditional test. The logistic parameters obtained from the user-operated test with the ?-button agree with the parameters obtained in a traditional test. The homogeneity of the speech material is uninfluenced when the material is used in a user-operated test. Conclusions: It is reasonable to use the Dantale II speech material for a user-operated speech in noise test, and the use of the ?-button is favourable.

• 出版日期2014-5