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:: Volume 18, Issue 1 And 2 (18 2009) ::
aud 2009, 18(1 And 2): 12-17 Back to browse issues page
Investigation of Persian speech interaural attenuation in adults
Fahimeh Hajiabolhassan * 1, Afshin Amiri1
1- Department of Audiology, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
Abstract:   (9227 Views)

Background and Aim: As clinical audiometry assessment of each ear needs to know interaural attenuation (IA), the aim of this study was to investigate Persian speech IA in adults.

Methods: This cross-sectional, analytic study was performed on 50 normal hearing students (25 males, 25 females), aged 18-25 years old in Faculty of Rehabilitation, Tehran University of Medical Sciences. Speech reception threshold (SRT) was determined with descending method with and without noise. Then speech IA for Persian spondaic words was caculated with TDH-39 earphones.

Results: Mean speech IA was 53.06±3.25 dB. There was no significant difference between mean IA in males (53.88±2.93 dB) and females (52.24±3.40 dB)(p>0.05). The lowest IA was in females (45 dB) and the highest IA was in males (60 dB). Mother's language has no significant effect on speech IA.

Conclusion: We may consider 45 dB as the lowest IA for Persian speech assessment, however generalization needs more study on a larger sample.

Keywords: Speech audiometry, speech reception threshold test, interaural attenuation
Full-Text [PDF 95 kb]   (3087 Downloads)    
Type of Study: Research |
Received: 2008/09/7 | Accepted: 2009/01/13 | Published: 2013/10/12
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 18, Issue 1 And 2 (18 2009) 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.

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