Compensatory speech response to time-scale altered auditory feedback

Perception of Auditory Feedback Delay: Subjective Estimate of Delay Magnitude

Journal of Speech and Hearing Research ◽

10.1044/jshr.1104.861 ◽

1968 ◽

Vol 11 (4) ◽

pp. 861-868 ◽

Cited By ~ 1

Author(s):

John H. Saxman ◽

Theodore D. Hanley

Keyword(s):

Delay Interval ◽

Auditory Feedback ◽

Delay Time ◽

Feedback Delay ◽

Delayed Auditory Feedback ◽

Physical Time ◽

Subjective Estimate ◽

Speech Response ◽

Female Subjects

Twenty female subjects were required to select, by the method of fractionation, the delay interval judged by them to be one-half the duration of the standard delay interval with which it was paired. The signals judged were the delay intervals between the subjects' own production of the syllable /da/ and its return via delayed auditory feedback. Ten ascending and ten descending one-half judgments were obtained for each subject at each of tie standard delay intervals of 100, 200, 400, and 800 msec. The curves for the ascending, descending, and combined ascending-descending judgments, when plotted against delay intervals in physical time, were all nearly linear with a slight positively accelerated slope. A tentative scale of subjective delay time is described and its implications for evaluating the speech response to DAF as a function of time are noted.

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Speech Compensation for Time-Scale-Modified Auditory Feedback

Journal of Speech Language and Hearing Research ◽

10.1044/2014_jslhr-s-12-0214 ◽

2014 ◽

Vol 57 (2) ◽

Cited By ~ 2

Author(s):

Rintaro Ogane ◽

Masaaki Honda

Keyword(s):

Auditory Feedback ◽

Time Scale ◽

Onset Time ◽

Feedback Condition ◽

Time Difference ◽

Acoustic Features ◽

Scale Perturbation ◽

Speed Change

Purpose The purpose of this study was to examine speech compensation in response to time-scale-modified auditory feedback during the transition of the semivowel for a target utterance of /ija/. Method Each utterance session consisted of 10 control trials in the normal feedback condition followed by 20 perturbed trials in the modified auditory feedback condition and 10 return trials in the normal feedback condition. The authors examined speech compensation and the aftereffect in terms of 3 acoustic features: the maximum velocities on the (a) F1 and (b) F2 trajectories (VF1 and VF2) and (c) the F1–F2 onset time difference (TD) during the transition. They also conducted a syllable perception test on the feedback speech. Results Speech compensation was observed in VF1, VF2, and TD. The magnitudes of speech compensation in VF1 and TD monotonically increased as the amount of the time-scale perturbation increased. The amount of speech compensation increased as the phonemic perception change increased. Conclusions Speech compensation for time-scale-modified auditory feedback is carried out primarily by changing VF1 and secondarily by adjusting VF2 and TD. Furthermore, it is activated primarily by detecting the speed change in altered feedback speech and secondarily by detecting the phonemic categorical change.

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Large-scale Motion of Solar Filaments

International Astronomical Union Colloquium ◽

10.1017/s0252921100064502 ◽

2000 ◽

Vol 179 ◽

pp. 205-208

Author(s):

Pavel Ambrož ◽

Alfred Schroll

Keyword(s):

Magnetic Flux ◽

Proper Motion ◽

Time Scale ◽

Large Scale ◽

Accuracy Of Measurements ◽

Solar Filaments ◽

General Movement ◽

Scale Motion ◽

Velocity Scatter

AbstractPrecise measurements of heliographic position of solar filaments were used for determination of the proper motion of solar filaments on the time-scale of days. The filaments have a tendency to make a shaking or waving of the external structure and to make a general movement of whole filament body, coinciding with the transport of the magnetic flux in the photosphere. The velocity scatter of individual measured points is about one order higher than the accuracy of measurements.

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The E-ring: interactions with plasma and implications for its evolution

International Astronomical Union Colloquium ◽

10.1017/s0252921100101678 ◽

1984 ◽

Vol 75 ◽

pp. 599-602

Author(s):

T.V. Johnson ◽

G.E. Morfill ◽

E. Grun

Keyword(s):

Time Scale ◽

Particle Density ◽

High Energy ◽

Particle Removal ◽

Density Region ◽

Drag Forces ◽

Orbit Evolution ◽

History Of ◽

Ring Particle ◽

Ring Material

A number of lines of evidence suggest that the particles making up the E-ring are small, on the order of a few microns or less in size (Terrile and Tokunaga, 1980, BAAS; Pang et al., 1982 Saturn meeting; Tucson, AZ). This suggests that a variety of electromagnetic and plasma affects may be important in considering the history of such particles. We have shown (Morfill et al., 1982, J. Geophys. Res., in press) that plasma drags forces from the corotating plasma will rapidly evolve E-ring particle orbits to increasing distance from Saturn until a point is reached where radiation drag forces acting to decrease orbital radius balance this outward acceleration. This occurs at approximately Rhea's orbit, although the exact value is subject to many uncertainties. The time scale for plasma drag to move particles from Enceladus' orbit to the outer E-ring is ~104yr. A variety of effects also act to remove particles, primarily sputtering by both high energy charged particles (Cheng et al., 1982, J. Geophys. Res., in press) and corotating plasma (Morfill et al., 1982). The time scale for sputtering away one micron particles is also short, 102 - 10 yrs. Thus the detailed particle density profile in the E-ring is set by a competition between orbit evolution and particle removal. The high density region near Enceladus' orbit may result from the sputtering yeild of corotating ions being less than unity at this radius (e.g. Eviatar et al., 1982, Saturn meeting). In any case, an active source of E-ring material is required if the feature is not very ephemeral - Enceladus itself, with its geologically recent surface, appears still to be the best candidate for the ultimate source of E-ring material.

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Delayed Auditory Feedback with Different Delay Times at Each Ear

Journal of Speech and Hearing Research ◽

10.1044/jshr.0704.369 ◽

1964 ◽

Vol 7 (4) ◽

pp. 369-371

Author(s):

Samuel Fillenbaum

Keyword(s):

Delay Interval ◽

Auditory Feedback ◽

Normal Subjects ◽

Delayed Auditory Feedback ◽

Delay Times

Binaurally asynchronous delayed auditory feedback (DAF) was compared with synchronous DAF in 80 normal subjects. Asynchronous DAF (0.10 sec difference) did not yield results different from those obtained under synchronous DAF with a 0.20 sec delay interval, an interval characteristically resulting in maximum disruptions in speech.

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Effects of Noise and Increased Vocal Intensity on Stuttering

Journal of Speech and Hearing Research ◽

10.1044/jshr.2002.233 ◽

1977 ◽

Vol 20 (2) ◽

pp. 233-240 ◽

Cited By ~ 17

Author(s):

Sharon F. Garber ◽

Richard R. Martin

Keyword(s):

Normal Level ◽

Auditory Feedback ◽

Concomitant Increase ◽

Vocal Intensity ◽

Presence And Absence

The present study was designed to assess the effects of increased vocal level on stuttering in the presence and absence of noise, and to assess the effects of noise on stuttering with and without a concomitant increase in vocal level. Accordingly, eight adult stutterers spoke in quiet with normal vocal level, in quiet with increased vocal level, in noise with normal level, and in noise with increased level. All subjects reduced stuttering in noise compared with quiet conditions. However, there was no difference in stuttering when subjects spoke with normal compared with increased vocal level. In the present study, reductions in stuttering under noise could not be explained by increases in vocal level. It appears, instead, that reductions in stuttering were related to a decrease in auditory feedback. The condition which resulted in the largest decrease in auditory feedback, speaking in noise with a normal level, also resulted in the largest decrease in stuttering.

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