scholarly journals Automatic Speaker Independent Dysarthric Speech Intelligibility Assessment System

2021 ◽  
pp. 101213
Author(s):  
Ayush Tripathi ◽  
Swapnil Bhosale ◽  
Sunil Kumar Kopparapu
Keyword(s):  
Speech Intelligibility ◽  
Assessment System ◽  
Speaker Independent ◽  
Dysarthric Speech

“You Say Severe, I Say Mild”: Toward an Empirical Classification of Dysarthria Severity

2021 ◽  
pp. 1-18
Author(s):  
Kaila L. Stipancic ◽  
Kira M. Palmer ◽  
Hannah P. Rowe ◽  
Yana Yunusova ◽  
James D. Berry ◽  
...  
Keyword(s):  
Speech Intelligibility ◽  
Interrater Reliability ◽  
Reliability And Validity ◽  
Roc Curves ◽  
Speaking Rate ◽  
Response Options ◽  
Cutoff Points ◽  
Healthy Control ◽  
Dysarthric Speech ◽  
Surrogate Measures

Purpose: The main purpose of this study was to create an empirical classification system for speech severity in patients with dysarthria secondary to amyotrophic lateral sclerosis (ALS) by exploring the reliability and validity of speech-language pathologists' (SLPs') ratings of dysarthric speech. Method: Ten SLPs listened to speech samples from 52 speakers with ALS and 20 healthy control speakers. SLPs were asked to rate the speech severity of the speakers using five response options: normal, mild, moderate, severe, and profound. Four severity-surrogate measures were also calculated: SLPs transcribed the speech samples for the calculation of speech intelligibility and rated the effort it took to understand the speakers on a visual analog scale. In addition, speaking rate and intelligible speaking rate were calculated for each speaker. Intrarater and interrater reliability were calculated for each measure. We explored the validity of clinician-based severity ratings by comparing them to the severity-surrogate measures. Receiver operating characteristic (ROC) curves were conducted to create optimal cutoff points for defining dysarthria severity categories. Results: Intrarater and interrater reliability for the clinician-based severity ratings were excellent and were comparable to reliability for the severity-surrogate measures explored. Clinician severity ratings were strongly associated with all severity-surrogate measures, suggesting strong construct validity. We also provided a range of values for each severity-surrogate measure within each severity category based on the cutoff points obtained from the ROC analyses. Conclusions: Clinician severity ratings of dysarthric speech are reliable and valid. We discuss the underlying challenges that arise when selecting a stratification measure and offer recommendations for a classification scheme when stratifying patients and research participants into speech severity categories.

Increasing the Precision of Dysarthric Speech Intelligibility and Severity Level Estimate

2021 ◽  
pp. 670-679
Author(s):  
Mohammad Soleymanpour ◽  
Michael T. Johnson ◽  
Jeffrey Berry
Keyword(s):  
Speech Intelligibility ◽  
Severity Level ◽  
Dysarthric Speech

scholarly journals The Preschool Speech Intelligibility Measure

1995 ◽  
Vol 4 (4) ◽  
pp. 22-28 ◽  
Author(s):  
Sherrill R. Morris ◽  
Kim A. Wilcox ◽  
Tracy L. Schooling
Keyword(s):  
Speech Intelligibility ◽  
Multiple Choice ◽  
Single Word ◽  
Speech Language Pathologists ◽  
Initial Testing ◽  
Dysarthric Speech ◽  
Children's Speech

Documenting changes in speech intelligibility across time is an important but difficult task for speech-language pathologists. This study reports on the development and initial testing of the Preschool Speech Intelligibility Measure (PSIM), a single-word, multiple-choice intelligibility measure. The PSIM is adapted from the Assessment of Intelligibility of Dysarthric Speech (Yorkston & Beukelman, 1981) and is designed to plot changes in children's speech intelligibility across time. This instrument is offered as an addition to the existing array of available speech intelligibility measures.

Effects of Presentation Mode and Repeated Familiarization on Intelligibility of Dysarthric Speech

2003 ◽  
Vol 12 (2) ◽  
pp. 198-208 ◽  
Author(s):  
Katherine C. Hustad ◽  
Meghan A. Cahill
Keyword(s):  
Cerebral Palsy ◽  
Speech Intelligibility ◽  
Presentation Mode ◽  
Presentation Modality ◽  
Motor Impairments ◽  
Dysarthric Speech ◽  
The One ◽  
Intelligibility Score ◽  
Clinical Measures

Clinical measures of speech intelligibility are widely used as one means of characterizing the speech of individuals with dysarthria. Many variables associated with both the speaker and the listener contribute to what is actually measured as intelligibility. The present study explored the effects of presentation modality (audiovisual vs. audio-only information) and the effects of speaker-specific familiarization across 4 trials on the intelligibility of speakers with mild and severe dysarthria associated with cerebral palsy. Results revealed that audiovisual information did not enhance intelligibility relative to audio-only information for 4 of the 5 speakers studied. The one speaker whose intelligibility increased when audiovisual information was presented had the most severe dysarthria and concomitant motor impairments. Results for speaker-specific repeated familiarization were relatively homogeneous across speakers, demonstrating significant intelligibility score improvements across 4 trials and, in particular, a significant improvement in intelligibility between the 1st and 4th trials.

Effect of Dysarthria Type, Speaking Condition, and Listener Age on Speech Intelligibility

2017 ◽  
Vol 26 (1) ◽  
pp. 113-123 ◽  
Author(s):  
Megan J. McAuliffe ◽  
Annalise R. Fletcher ◽  
Sarah E. Kerr ◽  
Greg A. O'Beirne ◽  
Tim Anderson
Keyword(s):  
Speech Intelligibility ◽  
Perceptual Task ◽  
Tailored Intervention ◽  
Vowel Formants ◽  
Speech Cues ◽  
Speech Features ◽  
Dysarthric Speech ◽  
Acoustic Analyses ◽  
Slow Speech

Purpose The aim of this study was to examine the effect of loud and slow speech cues on younger and older listeners' comprehension of dysarthric speech, specifically, (a) whether one strategy, as opposed to the other, promoted greater intelligibility gains for different speaker groups; (b) whether older and younger listeners' understandings were differentially affected by these strategies; and (c) which acoustic changes best predicted intelligibility gain in individual speakers. Method Twenty younger and 40 older listeners completed a perceptual task. Six individuals with dysarthria produced phrases across habitual, loud, and slow conditions. The primary dependent variable was proportion of words correct; follow-up acoustic analyses linked perceptual outcomes to changes in acoustic speech features. Results Regardless of dysarthria type, the loud condition produced significant intelligibility gains. Overall, older listeners' comprehension was reduced relative to younger listeners. Follow-up analysis revealed considerable interspeaker differences in intelligibility outcomes across conditions. Although the most successful speaking mode varied, intelligibility gains were strongly associated with the degree of change participants made to their vowel formants. Conclusions Perceptual outcomes vary across speaking modes, even when speakers with dysarthria are grouped according to similar perceptual profiles. Further investigation of interspeaker differences is needed to inform individually tailored intervention approaches.

Reliability and Agreement of Ratings of Ataxic Dysarthric Speech Samples With Varying Intelligibility

1991 ◽  
Vol 34 (2) ◽  
pp. 285-293 ◽  
Author(s):  
Christine Sheard ◽  
Roger D. Adams ◽  
Pamela J. Davis
Keyword(s):  
Speech Intelligibility ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Intraclass Correlation Coefficients ◽  
Percent Agreement ◽  
Wide Range ◽  
Interjudge Reliability ◽  
Ataxic Dysarthria ◽  
Dysarthric Speech ◽  
Source Of Error

Indices of interjudge reliability and inter- and intrajudge agreement were calculated from the ratings made by 15 experienced speech clinicians on five deviant speech dimensions with respect to 15 speakers with ataxic dysarthria. Speakers were chosen to cover a wide range of speech intelligibility (16–97%) as measured by the sentence intelligibility transcriptions of the Assessment of Intelligibility of Dysarthric Speech (Yorkston & Beukelman, 1981). Intraclass correlation coefficients derived from each judge on two occasions were above .6 for imprecise consonants, excess and equal stress, and harsh voice, but below .6 for distorted vowels and below .5 for irregular articulatory breakdown. The last dimension also had the lowest percent agreement for the interjudge and intrajudge comparisons. Poor speech dimension definition seems to be the most likely source of error on irregular articulatory breakdown. Judges agreed equally well in rating dysarthric speech across the range from low to high intelligibility.

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