Automatic method of pause measurement for normal and dysarthric speech

This study proposes an automatic method for the detection of pauses and identification of pause types in conversational speech for the purpose of measuring the effects of Friedreich's Ataxia (FRDA) on speech. Speech samples of ∼ 3 minutes were recorded from 13 speakers with FRDA and 18 healthy controls. Pauses were measured from the intensity contour and fit with bimodal lognormal distributions using the Expectation-Maximization algorithm in Matlab©. In the speakers with FRDA, both modes in the pause distributions had significantly larger means, with disproportionately fewer pauses associated with the first mode. From this preliminary study, it is concluded that distributional analysis of pause duration holds promise as a useful method of measuring the effects of FRDA on functional speech.

[1]  A. L. Leiner,et al.  Cognitive and language functions of the human cerebellum , 1993, Trends in Neurosciences.

[2]  Raymond D. Kent,et al.  Acoustic Analysis of Speech , 2009 .

[3]  D. O’connell,et al.  The Trouble with "Articulatory" Pauses , 1983 .

[4]  Raymond D. Kent,et al.  Prosodic disturbance and neurologic lesion , 1982, Brain and Language.

[5]  N. Hewlett,et al.  Dysarthria and Friedreich's ataxia: what can intelligibility assessment tell us? , 2007, International journal of language & communication disorders.

[6]  B. Murdoch,et al.  Physiological features of dysarthria in Friedreich's ataxia , 2003 .

[7]  John O. Greene.  SPEECH PREPARATION PROCESSES AND VERBAL FLUENCY , 1984 .

[8]  Raymond D. Kent,et al.  Dysarthria associated with traumatic brain injury: speaking rate and emphatic stress. , 2005, Journal of communication disorders.

[9]  Ray Bull,et al.  Suspects, Lies, and Videotape: An Analysis of Authentic High-Stake Liars , 2002, Law and human behavior.

[10]  A. Nieto,et al.  Neuropsychological Test Performance of Patients With Friedreich's Ataxia , 2002, Journal of clinical and experimental neuropsychology.

[11]  E. Yairi,et al.  Temporal dynamics of repetitions during the early stage of childhood stuttering: an acoustic study. , 1994, Journal of speech and hearing research.

[12]  Kristin M. Rosen,et al.  Analysis of speech segment duration with the lognormal distribution: A basis for unification and comparison , 2005, J. Phonetics.

[13]  K. Yorkston,et al.  Speech and pause characteristics following speech rate reduction in hypokinetic dysarthria. , 1996, Journal of communication disorders.

[14]  P. Patel,et al.  Friedreich's Ataxia: Autosomal Recessive Disease Caused by an Intronic GAA Triplet Repeat Expansion , 1996, Science.

[15]  Yukiko Ikui.  [Ataxic dysarthria]. , 2012, Rinsho shinkeigaku = Clinical neurology.

[16]  A. E. Lindsey,et al.  Encoding Processes in the Production of Multiple-Goal Messages. , 1989 .

[17]  X. Seron,et al.  Study of the temporal variables in the spontaneous speech of five aphasic patients in two situations, interview and description , 1979, Brain and Language.

[18]  E. Storey,et al.  Clinical and genetic study of Friedreich ataxia in an Australian population. , 1999, American journal of medical genetics.

[19]  Kim Kirsner,et al.  Temporal cycles in spontaneous speech. , 2000 .

[20]  Pause time and phonation time in stuttering and cluttering , 1972, Journal of psycholinguistic research.

[21]  P. Allen,et al.  Lognormal Distributions , 1945, Nature.

[22]  P. Deb.  Finite Mixture Models , 2008 .

[23]  F. Goldman-Eisler.  Psycholinguistics: Experiments in spontaneous speech , 1968 .

[24]  Jordan R Green,et al.  Algorithmic Estimation of Pauses in Extended Speech Samples of Dysarthric and Typical Speech. , 2004, Journal of medical speech-language pathology.

[25]  S. Skodda,et al.  Speech rate and rhythm in Parkinson's disease , 2008, Movement disorders : official journal of the Movement Disorder Society.

[26]  M. Schilling,et al.  Is Human Height Bimodal? , 2002 .

[27]  W. Friedman,et al.  The Effects of Pallidotomy Surgery on Sentence Measures across Three Tasks in Parkinson Patients , 2004 .

[28]  B. Healy.  Time for a pause. , 2003, U.S. news & world report.

[29]  M. Picheny,et al.  Speaking clearly for the hard of hearing. II: Acoustic characteristics of clear and conversational speech. , 1986, Journal of speech and hearing research.

[30]  Ray Bull,et al.  Increasing Cognitive Load to Facilitate Lie Detection: The Benefit of Recalling an Event in Reverse Order , 2008, Law and human behavior.

[31]  Geoffrey J. McLachlan,et al.  Finite Mixture Models , 2019, Annual Review of Statistics and Its Application.

[32]  Frieda Goldman Eisler.  Psycholinguistics : experiments in spontaneous speech , 1968 .

[33]  B. Murdoch,et al.  Dysarthria in Friedreich’s Ataxia: A Perceptual Analysis , 2010, Folia Phoniatrica et Logopaedica.

[34]  K. Kirsner,et al.  Temporal cycles in speech production , 2000 .

[35]  K. Yorkston,et al.  Modification of breath patterning to increase naturalness of a mildly dysarthric speaker. , 1986, Journal of communication disorders.

[36]  R. Kass,et al.  Response latency and verbal complexity: stochastic models of individual differences in children with specific language impairments. , 1997, Journal of speech, language, and hearing research : JSLHR.

[37]  L. A. Jeffress,et al.  Identification of brief pauses in the fluent speech of stutterers and nonstutterers. , 1971, Journal of Speech and Hearing Research.

[38]  Raymond D. Kent,et al.  Parametric quantitative acoustic analysis of conversation produced by speakers with dysarthria and healthy speakers. , 2006, Journal of speech, language, and hearing research : JSLHR.

[39]  Hans W. Dechert,et al.  Hesitancy as a conversational resource: Some methodological implications , 1980 .

[40]  Jordan R. Green,et al.  A diagnostic marker for childhood apraxia of speech: the coefficient of variation ratio , 2003, Clinical linguistics & phonetics.

[41]  V. M. Holmes.  Hesitations and sentence planning , 1988 .

[42]  G Weismer,et al.  Characteristics of speaking rate in the dysarthria associated with amyotrophic lateral sclerosis. , 1993, Journal of speech and hearing research.

[43]  Brian Butterworth,et al.  Hesitation and the production of verbal paraphasias and neologisms in jargon aphasia , 1979, Brain and Language.

[44]  J. Bradshaw,et al.  Towards an understanding of cognitive function in Friedreich ataxia , 2006, Brain Research Bulletin.

[45]  A. Aronson,et al.  Clusters of deviant speech dimensions in the dysarthrias. , 1969, Journal of speech and hearing research.

[46]  J. Pearn.  A Clinical and Genetic Study , 1978 .

[47]  M. Niimi,et al.  Speaking rate and its components in dysarthric speakers , 2001 .

[48]  Raymond D. Kent,et al.  Lognormal distribution of pause length in ataxic dysarthria , 2003, Clinical linguistics & phonetics.