ERIC Number: EJ909547
Record Type: Journal
Publication Date: 2010-Dec
Abstractor: As Provided
Reference Count: 0
The Effectiveness of Clear Speech as a Masker
Calandruccio, Lauren; Van Engen, Kristin; Dhar, Sumitrajit; Bradlow, Ann R.
Journal of Speech, Language, and Hearing Research, v53 n6 p1458-1471 Dec 2010
Purpose: It is established that speaking clearly is an effective means of enhancing intelligibility. Because any signal-processing scheme modeled after known acoustic-phonetic features of clear speech will likely affect both target and competing speech, it is important to understand how speech recognition is affected when a competing speech signal is also spoken clearly. In 2 experiments, the authors investigated whether listeners would experience improved intelligibility when both target and nontarget speech were spoken clearly. Method: Listeners' recognition of sentences in competing sounds was examined in 2 experiments. For both experiments, the target speech was spoken in conversational and clear styles. The competing sounds in Experiment 1 included 2-talker maskers spoken in conversational and clear styles of English or Croatian. The competing sounds in Experiment 2 included 1-talker maskers spoken in clear or conversational styles and temporally modulated white noise maskers shaped to mimic the 1-talker maskers. Results: Performance increased for clear versus conversational targets. No significant differences were found between conversational and clear maskers. Conclusions: If it were possible to implement clear speech through a listening device, it appears that listeners would still receive a clear-speech benefit, even if all sounds (including competing sounds) were (inadvertently) processed to be more clear.
Descriptors: Listening, Speech, Recognition (Psychology), Sentences, Serbocroatian, English, Auditory Perception, Acoustics
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A