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Children's recognition of their own recorded voice: influence of age and phonological impairment
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH.
2013 (English)In: Clinical Linguistics & Phonetics, ISSN 0269-9206, E-ISSN 1464-5076, Vol. 27, no 1, 33-45 p.Article in journal (Refereed) Published
Abstract [en]

Children with phonological impairment (PI) often have difficulties perceiving insufficiencies in their own speech. The use of recordings has been suggested as a way of directing the child's attention toward his/her own speech, despite a lack of evidence that children actually recognize their recorded voice as their own. We present two studies of children's self-voice identification, one exploring developmental aspects, and one exploring potential effects of having a PI. The results indicate that children from 4 to 8 years recognize their recorded voice well (around 80% accuracy), regardless of whether they have a PI or not. A subtle change in this ability from 4 to 8 years is observed that could be linked to a development in short-term memory. Clinically, one can indeed expect an advantage of using recordings in therapy; this could constitute an intermediate step toward the more challenging task of online self-monitoring.

Place, publisher, year, edition, pages
2013. Vol. 27, no 1, 33-45 p.
Keyword [en]
child phonological disorders, speech perception, short-term memory
National Category
Computer Science Language Technology (Computational Linguistics)
URN: urn:nbn:se:kth:diva-110046DOI: 10.3109/02699206.2012.735744ISI: 000312245100003ScopusID: 2-s2.0-84871255932OAI: diva2:585863

QC 20130110

Available from: 2013-01-10 Created: 2013-01-10 Last updated: 2014-03-17Bibliographically approved
In thesis
1. The /k/s, the /t/s, and the inbetweens: Novel approaches to examining the perceptual consequences of misarticulated speech
Open this publication in new window or tab >>The /k/s, the /t/s, and the inbetweens: Novel approaches to examining the perceptual consequences of misarticulated speech
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis comprises investigations of the perceptual consequences of children’s misarticulated speech – as perceived by clinicians, by everyday listeners, and by the children themselves. By inviting methods from other areas to the study of speech disorders, this work demonstrates some successful cases of cross-fertilization. The population in focus is children with a phonological disorder (PD), who misarticulate /t/ and /k/. A theoretical assumption underlying this work is that errors in speech production are often paralleled in perception, e.g. that children base their decision on whether a speech sound is a /t/ or a /k/ on other acoustic-phonetic criteria than those employed by proficient language users. This assumption, together with an aim at stimulating self-monitoring in these children, motivated two of the included studies. Through these studies, new insights into children’s perception of their own speech were achieved – insights entailing both clinical and psycholinguistic implications. For example, the finding that children with PD generally recognize themselves as the speaker in recordings of their own utterances lends support to the use of recordings in therapy, to attract children’s attention to their own speech production. Furthermore, through the introduction of a novel method for automatic correction of children’s speech errors, these findings were extended with the observation that children with PD tend to evaluate misarticulated utterances as correct when just having produced them, and to perceive inaccuracies better when time has passed. Another theme in this thesis is the gradual nature of speech perception related to phonological categories, and a concern that perceptual sensitivity is obscured in descriptions based solely on discrete categorical labels. This concern is substantiated by the finding that listeners rate “substitutions” of [t] for /k/ as less /t/-like than correct productions of [t] for intended /t/. Finally, a novel method of registering listener reactions during the continuous playback of misarticulated speech is introduced, demonstrating a viable approach to exploring how different speech errors influence intelligibility and/or acceptability. By integrating such information in the prioritizing of therapeutic targets, intervention may be better directed at those patterns that cause the most problems for the child in his or her everyday life.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. xiii, 105 p.
TRITA-CSC-A, ISSN 1653-5723 ; 2014:03
speech perception, speech disorders, speech synthesis, speech analysis
National Category
Specific Languages
Research subject
Speech and Music Communication
urn:nbn:se:kth:diva-143102 (URN)ISBN-978-91-7595-050-1 (ISBN)
Public defence
2014-04-07, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (English)

QC 20140317

Available from: 2014-03-17 Created: 2014-03-17 Last updated: 2014-03-17Bibliographically approved

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Strömbergsson, Sofia
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