|||  Journal title: Audiology | Publisher: Tehran University of Medical Sciences | Website: http://aud.tums.ac.ir | Email: aud@tums.ac.ir   |||
   [Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Registration :: Submission :: Current Issue :: Archive :: Contact :: Search ::
:: Volume 22, Issue 3 (10-2013) ::
aud 2013, 22(3): 74-82 Back to browse issues page
Acoustic explanation of fundamental frequency of onset in initial plosives by cochlear-implanted children and normal hearings
Rahimeh Roohparvar 1, Mahmood Bijankhan2, Saeed Hasanzadeh3, Shohreh Jalaie4
1- Department of Foreign Languages, Faculty of Literature and Humanities, Shahid Bahonar University of Kerman, Kerman, Iran
2- Department of General Linguistics, Faculty of Literature and Humanities, University of Tehran, Iran
3- Department of Psychology and Education of Exceptional Children, University of Tehran, Iran
4- Department of Biostatistics, School of Rehabilitation, Tehran University of Medical Sciences, Iran
Abstract:   (8390 Views)

Background and Aim: Fundamental frequency (F0) of onset is a reliable acoustic cue of voicing differences in plosive consonants. The purpose of present study was to acoustically analyze of the F0 amount of oral plosive consonants in the initial position of words in cochlear-implanted children and normal hearings.

Methods: In this study, the F0 of onset was measured in the speech production of 47 prelingual deaf children who were cochlear implanted about 61 months before the test (range: 47-76 months, SD: 8.6) and the results were compared with 60 normal hearing children who were 60 months old (range: 49-73, SD: 6.5).

Results: Using repeated measurement tests, it was shown that in all places of articulation, the amount of F0 of onset in voiceless plosives was higher than that of voiced ones, because of the low position of larynx and hyoid bone in voiced plosives. On the other hand, in most cases, the F0 of cochlear-implanted children was lower than that of normal hearings and in voiced plosives, there were significant differences (p=0.005) between cochlear implanted and normal hearing children. There was not any significant difference between the F0 of onset in girls and boys.

Conclusion: In all places of articulation, the mean amount of F0 of onset for voiceless plosives was higher than that of voiced plosives. There was significant difference between F0 of onset in cochlear implanted and normal hearing children.

Keywords: Fundamental frequency of onset, cochlear implant, articulation of plosive consonant, voicing
Full-Text [PDF 148 kb]   |   Full Text (HTML)   (2267 Downloads)    
Type of Study: Research |
Received: 2012/05/4 | Accepted: 2012/10/23 | Published: 2013/11/30
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print



Volume 22, Issue 3 (10-2013) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
Creative Commons Attribution-NonCommercial 3.0

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.

Persian site map - English site map - Created in 0.24 seconds with 33 queries by YEKTAWEB 4030