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/ http://irep.iium.edu.my/49079/1/Optimum_initial_masking_level_for_plateu_seeking_method.pdf

id	iium-49079
recordtype	eprints
spelling	iium-490792017-11-21T08:26:23Z 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)
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/49079/1/Optimum_initial_masking_level_for_plateu_seeking_method.pdf
first_indexed	2023-09-18T21:09:26Z
last_indexed	2023-09-18T21:09:26Z
_version_	1777411153305010176

Optimum initial masking level for Plateau seeking method

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