Journal article
The importance of high-frequency audibility with and without visual cues on speech recognition for listeners with normal hearing
International journal of audiology, Vol.54(11), pp.865-872
11/02/2015
DOI: 10.3109/14992027.2015.1051666
PMID: 26068537
Abstract
Objective: To examine the impact of visual cues, speech materials, age and listening condition on the frequency bandwidth necessary for optimizing speech recognition performance. Design: Using a randomized repeated measures design; speech recognition performance was assessed using four speech perception tests presented in quiet and noise in 13 LP filter conditions and presented in multimodalities. Participants' performance data were fitted with a Boltzmann function to determine optimal performance (10% below performance achieved in FBW). Study sample: Thirty adults (18-63 years) and thirty children (7-12 years) with normal hearing. Results: Visual cues significantly reduced the bandwidth required for optimizing speech recognition performance for listeners. The type of speech material significantly impacted the bandwidth required for optimizing performance. Both groups required significantly less bandwidth in quiet, although children required significantly more than adults. The widest bandwidth required was for the phoneme detection task in noise where children required a bandwidth of 7399 Hz and adults 6674 Hz. Conclusions: Listeners require significantly less bandwidth for optimizing speech recognition performance when assessed using sentence materials with visual cues. That is, the amount of bandwidth systematically decreased as a function of increased contextual, linguistic, and visual content.
Details
- Title: Subtitle
- The importance of high-frequency audibility with and without visual cues on speech recognition for listeners with normal hearing
- Creators
- Amanda B Silberer - Department of Communication Sciences and Disorders, Western Illinois UniversityRuth Bentler - Department of Communication Sciences and Disorders, The University of IowaYu-Hsiang Wu - Department of Communication Sciences and Disorders, The University of Iowa
- Resource Type
- Journal article
- Publication Details
- International journal of audiology, Vol.54(11), pp.865-872
- Publisher
- Taylor & Francis
- DOI
- 10.3109/14992027.2015.1051666
- PMID
- 26068537
- ISSN
- 1499-2027
- eISSN
- 1708-8186
- Language
- English
- Date published
- 11/02/2015
- Academic Unit
- Communication Sciences and Disorders; Otolaryngology
- Record Identifier
- 9984083805202771
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