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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Use of speech production repair strategies to improve diver communication.

The purpose of this investigation was to determine if speech intelligibility improved when divers made specific modifications to their speaking patterns while in a hyperbaric helium-oxygen (heliox) environment. Divers were trained to produce a variety of sentences using speech with three types of alterations: (1) slowed rate, (2) increased loudness, and (3) a combination of slightly slowed rate, a minimal increase in loudness, increased pause time, and greater mouth opening (composite strategy). Both diver and non-diver listeners judged these sentences for intelligibility. In addition, acoustic analysis of the cues for the identification of voicing, place, and manner of articulation was conducted to determine if such cues might become more audible in the speech signal when repair strategies were used. Both perceptual and acoustic results showed the composite method to be the best for natural-sounding, intelligible speech. It had the effect of slowing rate and increasing loudness just enough to increase intelligibility without causing distortion. It was concluded that teaching divers to produce speech using this method would be a worthwhile investment for improving speech intelligibility.[1]

References

  1. Use of speech production repair strategies to improve diver communication. Mendel, L.L., Walton, J.H., Hamill, B.W., Pelton, J.D. Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc. (2003) [Pubmed]
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