E-Posters

introduction / background

Speech in noise (SIN) tests can directly address the most common complaint that patients have, which is an inability to hear well in background noise. Because it is a common complaint in all age ranges, (SIN) tests can provide valuable insights into what might be the most appropriate amplification strategy. The results of these tests give more precision in the way to counsel patients about realistic expectations [1]. Children require a more advantageous signal to noise ratio (SNR) than adults to recognize speech in the presence of competing background sounds [2]. Children with hearing loss have greater difficulty recognizing speech in these situations when compared with age-matched peers with normal hearing [3]. There is no available standardized Arabic SIN tests suitable for children and cochlear implant (CI) users till now. Subsequently, the present work was aiming at development and standardization of Arabic version of BKB test to measure SNR loss.

Objectives

Develop, and standardize an Arabic version of Bamford- Kowal-Bench (BKB) speech-in-noise test that measures the signal-to-noise ratio.

Materials & Methods

Subjects: This study included 54 normal hearing child. Their age ranged from 5-18 years. Material: Sentences have words that are at first grade reading level and familiar to children. These sentences were recorded by male talker and were presented in four-talker babble in four phases.

Results

phase I assess the equivalence of sentences and normalize signal to noise ratio 50%. In Phase II selection of sentences then construction of equivalent lists producing 18 equivalent lists, each list consists of eight sentences. The first sentence has four keywords, while the remaining sentences have three. Phase III determines the SNR starting level of lists. Phase IV provides age related norms. The final lists comprise the Arabic-BKB SIN test that measures the SNR a listener requires to understand 50% of keywords in sentences in a background of babble.

Conculsion

1- Arabic BKB test can be used as a reliable and valid test for measuring SNR loss in children. 2- The Arabic-BKB provides age-related norms for children and sensitive lists for each age group (5-7, >7-10 and >10-14). 3- Single list is sufficient to obtain accurate SNR loss score.

References

[1] Taylor B (2011) Using speech-in-noise tests to make better hearing aid selection decisions. [2] Hall III J, Grose J, Buss E, Dev M ( 2002). Ear and Hearing, 23(2), pp.159-165. [3] Rance G, Barker E, Mok M (2007). Ear Hear, 28, 351–360.

acknowledgement / Contact

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