Training Korean listeners to perceive phonemic length contrasts in Japanese: Effects of speaking rate variation and contrast type

2011 ◽  
Vol 130 (4) ◽  
pp. 2575-2575
Author(s):  
Mee Sonu ◽  
Keiichi Tajima ◽  
Hiroaki Kato ◽  
Yoshinori Sagisaka
Keyword(s):  
Speaking Rate ◽  
Rate Variation

scholarly journals Speaking Rate Effects on Normal Aspects of Articulation: Outcomes and Issues

2011 ◽  
Vol 21 (1) ◽  
pp. 15-26 ◽  
Author(s):  
Jeff Berry
Keyword(s):  
Speech Production ◽  
The Body ◽  
Rate Change ◽  
Speaking Rate ◽  
Rate Variation ◽  
Rate Effects ◽  
Speech Science ◽  
Disordered Speech

The articulatory effects of speaking rate have been a point of focus for a substantial literature in speech science. The normal aspects of speaking rate variation have influenced theories and models of speech production and perception in the literature pertaining to both normal and disordered speech. While the body of literature pertaining to the articulatory effects of speaking rate change is reasonably large, few speaker-general outcomes have emerged. The purpose of this paper is to review outcomes of the existing literature and address problems related to the study of speaking rate that may be germane to the recurring theme that speaking rate effects are largely idiosyncratic.

Talker and speaking rate variation affect lexical neighborhoods

2001 ◽  
Vol 110 (5) ◽  
pp. 2739-2739
Author(s):  
James R. Sawusch ◽  
Liza K. Zimack ◽  
Kathleen M. Measer ◽  
Rochelle S. Newman ◽  
Paul A. Luce
Keyword(s):  
Speaking Rate ◽  
Rate Variation ◽  
Lexical Neighborhoods

Automated Acoustic Analysis of Oral Diadochokinesis to Assess Bulbar Motor Involvement in Amyotrophic Lateral Sclerosis

2020 ◽  
Vol 63 (1) ◽  
pp. 59-73 ◽  
Author(s):  
Panying Rong
Keyword(s):  
Amyotrophic Lateral Sclerosis ◽  
Acoustic Analysis ◽  
Speaking Rate ◽  
Disease Stage ◽  
Healthy Controls ◽  
Tongue Movement ◽  
Major Barrier ◽  
Syllable Repetition ◽  
Oral Diadochokinesis ◽  
Lateral Sclerosis

Purpose The purpose of this article was to validate a novel acoustic analysis of oral diadochokinesis (DDK) in assessing bulbar motor involvement in amyotrophic lateral sclerosis (ALS). Method An automated acoustic DDK analysis was developed, which filtered out the voice features and extracted the envelope of the acoustic waveform reflecting the temporal pattern of syllable repetitions during an oral DDK task (i.e., repetitions of /tɑ/ at the maximum rate on 1 breath). Cycle-to-cycle temporal variability (cTV) of envelope fluctuations and syllable repetition rate (sylRate) were derived from the envelope and validated against 2 kinematic measures, which are tongue movement jitter (movJitter) and alternating tongue movement rate (AMR) during the DDK task, in 16 individuals with bulbar ALS and 18 healthy controls. After the validation, cTV, sylRate, movJitter, and AMR, along with an established clinical speech measure, that is, speaking rate (SR), were compared in their ability to (a) differentiate individuals with ALS from healthy controls and (b) detect early-stage bulbar declines in ALS. Results cTV and sylRate were significantly correlated with movJitter and AMR, respectively, across individuals with ALS and healthy controls, confirming the validity of the acoustic DDK analysis in extracting the temporal DDK pattern. Among all the acoustic and kinematic DDK measures, cTV showed the highest diagnostic accuracy (i.e., 0.87) with 80% sensitivity and 94% specificity in differentiating individuals with ALS from healthy controls, which outperformed the SR measure. Moreover, cTV showed a large increase during the early disease stage, which preceded the decline of SR. Conclusions This study provided preliminary validation of a novel automated acoustic DDK analysis in extracting a useful measure, namely, cTV, for early detection of bulbar ALS. This analysis overcame a major barrier in the existing acoustic DDK analysis, which is continuous voicing between syllables that interferes with syllable structures. This approach has potential clinical applications as a novel bulbar assessment.

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