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A Visual Speech Intelligibility Benefit Based on Speech Rhythm.

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Název: A Visual Speech Intelligibility Benefit Based on Speech Rhythm.
Autoři: Kawase, Saya, Davis, Chris, Kim, Jeesun
Zdroj: Brain Sciences (2076-3425); Jun2023, Vol. 13 Issue 6, p932, 12p
Témata: INTELLIGIBILITY of speech, SPEECH, SPEECH perception, PHONETICS, SPEECH processing systems, ENGLISH language pronunciation by foreign speakers, ACCENTS (Sociolinguistics)
Abstrakt: This study examined whether visual speech provides speech-rhythm information that perceivers can use in speech perception. This was tested by using speech that naturally varied in the familiarity of its rhythm. Thirty Australian English L1 listeners performed a speech perception in noise task with English sentences produced by three speakers: an English L1 speaker (familiar rhythm); an experienced English L2 speaker who had a weak foreign accent (familiar rhythm), and an inexperienced English L2 speaker who had a strong foreign accent (unfamiliar speech rhythm). The spoken sentences were presented in three conditions: Audio-Only (AO), Audio-Visual with mouth covered (AVm), and Audio-Visual (AV). Speech was best recognized in the AV condition regardless of the degree of foreign accent. However, speech recognition in AVm was better than AO for the speech with no foreign accent and with a weak accent, but not for the speech with a strong accent. A follow-up experiment was conducted that only used the speech with a strong foreign accent, under more audible conditions. The results also showed no difference between the AVm and AO conditions, indicating the null effect was not due to a floor effect. We propose that speech rhythm is conveyed by the motion of the jaw opening and closing, and perceivers use this information to better perceive speech in noise. [ABSTRACT FROM AUTHOR]
Copyright of Brain Sciences (2076-3425) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A Visual Speech Intelligibility Benefit Based on Speech Rhythm.
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  Data: <searchLink fieldCode="AR" term="%22Kawase%2C+Saya%22">Kawase, Saya</searchLink><br /><searchLink fieldCode="AR" term="%22Davis%2C+Chris%22">Davis, Chris</searchLink><br /><searchLink fieldCode="AR" term="%22Kim%2C+Jeesun%22">Kim, Jeesun</searchLink>
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  Data: Brain Sciences (2076-3425); Jun2023, Vol. 13 Issue 6, p932, 12p
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  Data: <searchLink fieldCode="DE" term="%22INTELLIGIBILITY+of+speech%22">INTELLIGIBILITY of speech</searchLink><br /><searchLink fieldCode="DE" term="%22SPEECH%22">SPEECH</searchLink><br /><searchLink fieldCode="DE" term="%22SPEECH+perception%22">SPEECH perception</searchLink><br /><searchLink fieldCode="DE" term="%22PHONETICS%22">PHONETICS</searchLink><br /><searchLink fieldCode="DE" term="%22SPEECH+processing+systems%22">SPEECH processing systems</searchLink><br /><searchLink fieldCode="DE" term="%22ENGLISH+language+pronunciation+by+foreign+speakers%22">ENGLISH language pronunciation by foreign speakers</searchLink><br /><searchLink fieldCode="DE" term="%22ACCENTS+%28Sociolinguistics%29%22">ACCENTS (Sociolinguistics)</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This study examined whether visual speech provides speech-rhythm information that perceivers can use in speech perception. This was tested by using speech that naturally varied in the familiarity of its rhythm. Thirty Australian English L1 listeners performed a speech perception in noise task with English sentences produced by three speakers: an English L1 speaker (familiar rhythm); an experienced English L2 speaker who had a weak foreign accent (familiar rhythm), and an inexperienced English L2 speaker who had a strong foreign accent (unfamiliar speech rhythm). The spoken sentences were presented in three conditions: Audio-Only (AO), Audio-Visual with mouth covered (AVm), and Audio-Visual (AV). Speech was best recognized in the AV condition regardless of the degree of foreign accent. However, speech recognition in AVm was better than AO for the speech with no foreign accent and with a weak accent, but not for the speech with a strong accent. A follow-up experiment was conducted that only used the speech with a strong foreign accent, under more audible conditions. The results also showed no difference between the AVm and AO conditions, indicating the null effect was not due to a floor effect. We propose that speech rhythm is conveyed by the motion of the jaw opening and closing, and perceivers use this information to better perceive speech in noise. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Brain Sciences (2076-3425) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/brainsci13060932
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              Text: Jun2023
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