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Optimum initial masking level for Plateau seeking method

The purpose of this study is to establish the optimum initial masking level that can be used in “Plateau Method” of masking. The Minimum Effective Masking Level (MEML) of 30 normal hearing ears was determined at octave frequencies from 250Hz to 4000Hz. Mean MEML for the octave frequencies ranged fro...

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Main Authors: Rahmat, Sarah, Jamaluddin, Saiful Adli
Format: Conference or Workshop Item
Language:English
Published: 2010
Subjects:
Q Science (General)
Online Access:http://irep.iium.edu.my/49079/1/Optimum_initial_masking_level_for_plateu_seeking_method.pdf
http://irep.iium.edu.my/49079/
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spelling my.iium.irep.490792022-04-20T01:12:24Z http://irep.iium.edu.my/49079/ Optimum initial masking level for Plateau seeking method Rahmat, Sarah Jamaluddin, Saiful Adli Q Science (General) The purpose of this study is to establish the optimum initial masking level that can be used in “Plateau Method” of masking. The Minimum Effective Masking Level (MEML) of 30 normal hearing ears was determined at octave frequencies from 250Hz to 4000Hz. Mean MEML for the octave frequencies ranged from -1.8 to 0.7 dB SL. There were significant differences of MEML between 250 Hz and 2 KHz, and 250 Hz and 4 KHz (P <0.05) with higher MEML recorded at higher frequencies as compared to 250Hz. MANOVA revealed no significant difference of MEML between male and female across frequencies (P<0.05). Pearson correlation revealed a strong positive significant linear relationship between pure tone level and masker level for all frequencies (P<0.05; 0.95<r<1.0) which suggests that the narrowband noise used effectively masked the pure tone signals. The highest recorded MEML was 5 dB SL at all octave frequencies. Taking a conservative approach, this value was used in the calculation of optimum initial masking level in addition to 5 dB to ensure significant threshold shift. It is recommended that 10 dB SL of initial masking level is applied in audiology clinics in Malaysia as it is adequate to effectively mask the pure tone thresholds. 2010 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/49079/1/Optimum_initial_masking_level_for_plateu_seeking_method.pdf Rahmat, Sarah and Jamaluddin, Saiful Adli (2010) Optimum initial masking level for Plateau seeking method. In: Asia Pacific Conference of Speech, Language and Hearing Sciences 2010, 3rd- 4th May 2010, Kuala Lumpur. (Unpublished)
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Rahmat, Sarah
Jamaluddin, Saiful Adli
Optimum initial masking level for Plateau seeking method
description The purpose of this study is to establish the optimum initial masking level that can be used in “Plateau Method” of masking. The Minimum Effective Masking Level (MEML) of 30 normal hearing ears was determined at octave frequencies from 250Hz to 4000Hz. Mean MEML for the octave frequencies ranged from -1.8 to 0.7 dB SL. There were significant differences of MEML between 250 Hz and 2 KHz, and 250 Hz and 4 KHz (P <0.05) with higher MEML recorded at higher frequencies as compared to 250Hz. MANOVA revealed no significant difference of MEML between male and female across frequencies (P<0.05). Pearson correlation revealed a strong positive significant linear relationship between pure tone level and masker level for all frequencies (P<0.05; 0.95<r<1.0) which suggests that the narrowband noise used effectively masked the pure tone signals. The highest recorded MEML was 5 dB SL at all octave frequencies. Taking a conservative approach, this value was used in the calculation of optimum initial masking level in addition to 5 dB to ensure significant threshold shift. It is recommended that 10 dB SL of initial masking level is applied in audiology clinics in Malaysia as it is adequate to effectively mask the pure tone thresholds.
format Conference or Workshop Item
author Rahmat, Sarah
Jamaluddin, Saiful Adli
author_facet Rahmat, Sarah
Jamaluddin, Saiful Adli
author_sort Rahmat, Sarah
title Optimum initial masking level for Plateau seeking method
title_short Optimum initial masking level for Plateau seeking method
title_full Optimum initial masking level for Plateau seeking method
title_fullStr Optimum initial masking level for Plateau seeking method
title_full_unstemmed Optimum initial masking level for Plateau seeking method
title_sort optimum initial masking level for plateau seeking method
publishDate 2010
url http://irep.iium.edu.my/49079/1/Optimum_initial_masking_level_for_plateu_seeking_method.pdf
http://irep.iium.edu.my/49079/
_version_ 1731225353391702016
score 13.211869

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