FluencyBank English IISRP Corpus

	Nicoline Ambrose Hearing and Speech Sciences University of Illinois nambrose@illinois.edu website
	Ehud Yairi Hearing and Speech Sciences University of Illinois - website

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Media

This corpus exists in three forms:

• The IISRP-new corpus provides fully fluency coded, checked, and linked versions of the recordings from Time 1.
• The version of the corpus available from the above links on the current page was created by ASR on the basis of the audio extracted from the videos provided by Yairi and Ambrose. Improvement of this version to include fluency coding and correction of ASR errors is currently underway.
• We also provide the original transcriptions in the IISRP-orig.zip file that is inside the downloadable version of the ASR corpus that is available from this link . Those original transcriptions were produced by conversion from SALT. They did not include utterances produced by the examiners, and they were not time linked.

Citation information

Users of this corpus should the following publication:

Yairi, E. & Ambrose, N. (2005). Early childhood stuttering. Austin: Pro Ed.

For a full bibliography, please click here.

Project Description

• 440 samples from 88 CWS, 5 samples each, 6 months apart
• 67 additional samples from the same children, an additional year later
• 37 of the same children, samples taken 3 months after the initial visit (between visits 1 & 2) from children seen close to onset
• 160 samples (approx..) from CWNS, 4 samples each, one year apart

• determine variations in onset and their possible effect on the future course of the disorder,
• describe and quantify changes that occur in stuttering over time,
• obtain data on the timing and magnitude of natural recovery,
• identify factors that can influence the recovery and those that lead to chronic stuttering, and
• identify means for making early prediction of the likelihood of chronic vs. transient stuttering.

The general investigation involves a wide range of testing of young children as close as possible to the onset of stuttering. This includes tests of speech, language, hearing, motor skills, intellectual functioning, and emotional reactions, as well as audio and video recordings, thorough case histories, and familial pedigrees. After initial testing we proceed with follow-ups every six months for a period of several years. Through this close monitoring, we document what happens to children who begin stuttering and generate criteria for risks. The National Institutes of Health, National Institute on Deafness and Other Communication Disorders funded this project for more than 12 years.

For a full list of researchers involved in this project, click here

Codes

Stuttering-like disfluencies are coded as:

• PW part-word repetition of a sound or syllable, the number refers to how many extra times
• WW single syllable whole word repetition
• DP disrhythmic phonation, blocks or prolongations (reliably identified by two experienced listeners, as are all disfluencies but these are the hardest to be reliable on)

"Normal"-like disfluencies are coded as:

• M multiple syllable word repetition
• P phrase repetition
• I interjection, um, er, uh etc., NOT "real" words such as "well" or "like"
• R revision

Here are two examples:

(block)I wa-wa-waaaaant w-want some um um cookies cookies

[DP]I [DP][PW3][WW1]want some [I2] [M1]cookies.

Ca-ca-can I play play play so-so-some some of those toys?

[PW2]CAN I [WW2]PLAY [PW2][WW1]SOME OF THOSE TOY/S?

Acknowledgements