Aspects of disturbed prosody in dysarthria

Schlenck, Klaus-Jürgen; Bettrich, R.; Willmes, Klaus

doi:10.3109/02699209308985549

Cited by 37 publications

(21 citation statements)

References 2 publications

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“…Although neither manipulation was found to be beneficial compared with the original dynamic pitch, there are potential implications that justify further testing of moderate dynamic-pitch values in this paradigm. It is unusual to encounter monotonous speech in reality, but speech that has reduced dynamic pitch is documented in individuals who have speech pathologies (e.g., dysarthria; Schlenck, Bettrich, & Willmes, 1993). A potential intervention for improving speech recognition with this type of speech is to strengthen dynamic pitch and bring it closer to natural strength.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Dynamic Pitch on Speech Recognition in Temporally Modulated Noise

Shen

Souza

2017

J Speech Lang Hear Res

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Purpose This study investigated the effect of dynamic pitch in target speech on older and younger listeners' speech recognition in temporally modulated noise. First, we examined whether the benefit from dynamic-pitch cues depends on the temporal modulation of noise. Second, we tested whether older listeners can benefit from dynamic-pitch cues for speech recognition in noise. Last, we explored the individual factors that predict the amount of dynamic-pitch benefit for speech recognition in noise. Method Younger listeners with normal hearing and older listeners with varying levels of hearing sensitivity participated in the study, in which speech reception thresholds were measured with sentences in nonspeech noise. Results The younger listeners benefited more from dynamic pitch for speech recognition in temporally modulated noise than unmodulated noise. Older listeners were able to benefit from the dynamic-pitch cues but received less benefit from noise modulation than the younger listeners. For those older listeners with hearing loss, the amount of hearing loss strongly predicted the dynamic-pitch benefit for speech recognition in noise. Conclusions Dynamic-pitch cues aid speech recognition in noise, particularly when noise has temporal modulation. Hearing loss negatively affects the dynamic-pitch benefit to older listeners with significant hearing loss.

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Section: Discussionmentioning

confidence: 99%

The Effect of Dynamic Pitch on Speech Recognition in Temporally Modulated Noise

Shen

Souza

2017

J Speech Lang Hear Res

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“…Perceptual determination is an indirect detection based on auditory judgments of speech features associated with the respiratory cycle (Bunton, Kent, & Rosenbek, 2000; Oller & Smith, 1977; Schlenck, Bettrich, & Willmes, 1993; Wang, Kent, Duffy & Thomas, 2005; Wozniak, Coelho, Duffy, & Liles, 1999). Both the perceptual and acoustic methods can be applied to previously recorded speech samples and can be accomplished with only modest investment in hardware or software.…”

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confidence: 99%

Accuracy of perceptual and acoustic methods for the detection of inspiratory loci in spontaneous speech

et al. 2012

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The current study investigates the accuracy of perceptually and acoustically determined inspiratory loci in spontaneous speech for the purpose of identifying breath groups. Sixteen participants were asked to talk about simple topics in daily life at a comfortable speaking rate and loudness while connected to a pneumotach and audio microphone. The locations of inspiratory loci were determined based on the aerodynamic signal, which served as a reference for loci identified perceptually and acoustically. Signal detection theory was used to evaluate the accuracy of the methods. The results showed that the greatest accuracy in pause detection was achieved (1) perceptually based on the agreement between at least 2 of the 3 judges; (2) acoustically using a pause duration threshold of 300 ms. In general, the perceptually-based method was more accurate than was the acoustically-based method. Inconsistencies among perceptually-determined, acoustically-determined, and aerodynamically-determined inspiratory loci for spontaneous speech should be weighed in selecting a method of breath-group determination.

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“…To identify inspiratory loci in continuous speech, clinicians and researchers have used three methods: (1) direct detection of inspiration by recording either chest-wall movements (Bunton, 2005; Forner & Hixon, 1977; Hammen & Yorkston, 1994; Hixon et al, 1973; Hixon et al, 1976; Hoit & Hixon, 1987; Hoit, Hixon, Watson, & Morgan, 1990; McFarland, 2001; Mitchell, Hoit, & Watson, 1996; Winkworth, Davis, Adams, & Ellis, 1995; Winkworth, Davis, Ellis, & Adams, 1994) or oral airflow (Wang et al, 2010); (2) indirect detection based on a presumed pause duration identified visually in acoustic recordings of speech (Campbell & Dollaghan, 1995; Walker, Archibald, Cherniak, & Fish, 1992; Yunusova, Weismer, Kent, & Rusche, 2005); and (3) indirect detection based on auditory–perceptual judgments of speech samples (Bunton, Kent, Kent, & Rosenbek, 2000; Oller & Smith, 1977; Schlenck, Bettrich, & Willmes, 1993; Wang et al, 2005; Wozniak, Coelho, Duffy, & Liles, 1999). Although many studies have relied on indirect methods to identify inspiratory loci in continuous speech, the accuracy of each technique has not been satisfactorily established.…”

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confidence: 99%

Accuracy of perceptually based and acoustically based inspiratory loci in reading

Wang¹,

Green

Nip

et al. 2010

Behavior Research Methods

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Investigations of speech often involve the identification of inspiratory loci in continuous recordings of speech. The present study investigates the accuracy of perceptually determined and acoustically determined inspiratory loci. While wearing a circumferentially vented mask connected to a pneumotach, 16 participants read two passages. The perceptually determined and acoustically determined inspiratory loci were compared with the actual loci of inspiration, which were determined aerodynamically. The results showed that (1) agreement across all three judges was the most accurate of the approaches considered here for detecting inspiratory loci based on listening; (2) the most accurate pause duration threshold for detecting inspiratory loci was 250 msec; and (3) the perceptually based breath-group determination was more accurate than the acoustically based determination of pause duration. Inconsistencies among perceptually determined, acoustically determined, and aerodynamically determined inspiratory loci are not negligible and, therefore, need to be considered when researchers design experiments on breath groups in speech.

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Aspects of disturbed prosody in dysarthria

Cited by 37 publications

References 2 publications

The Effect of Dynamic Pitch on Speech Recognition in Temporally Modulated Noise

The Effect of Dynamic Pitch on Speech Recognition in Temporally Modulated Noise

Accuracy of perceptual and acoustic methods for the detection of inspiratory loci in spontaneous speech

Accuracy of perceptually based and acoustically based inspiratory loci in reading

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