Preliminary standardization of consonant-vowel in noise test in normal Persian speaking children
AbstractBackground and Aim: Children have more difficulty in understanding speech in noisy environment than adults. Different tests are available for evaluation of speech perception ability in noise in children, each examines different levels of auditory system. The present study aimed to obtain normative data for consonant-vowel in noise test for 8–12 years old Persian-speaking children.Methods: A hundred and sixty children were selected in five age range groups of 8 to 12 years old (32 children in each age range) with normal hearing from school students in Tehran. The audiometry test was performed in octave interval between 500–4000 Hz. Then the consonant-vowel test was first performed in silence and then in signal-to-noise ratios (SNRs) of +12, +6, 0, −6, −12, at the listening comfort level and randomly in children ears.Results: There were significant differences between age range of 8 and 9 years with other age groups in the SNR of −12. There was a significant difference in all children between the scores of left and right ears in −12, −6, 0 SNRs (p < 0.05). However, there was no specific pattern in each age group. The results showed that with increasing SNR, the scores of recognition of the syllables increased. Sex had no effect on consonant-vowel recognition in the presence of noise.Conclusion: Recognition of the consonant-vowel in high SNR in both ears is stable before age 8, and this stability in the low signal-to-noise ratio is higher at around the age of 10.
2. Wilson RH, Farmer NM, Gandhi A, Shelburne E, Weaver J. Normative data for the Words-in-Noise Test for 6- to 12-year-old children. J Speech Lang Hear Res. 2010;53(5):1111-21. doi: 10.1044/1092-4388(2010/09-0270)
3. Klatte M, Lachmann T, Meis M. Effects of noise and reverberation on speech perception and listening comprehension of children and adults in a classroom-like setting. Noise Health. 2010;12(49):270-82. doi: 10.4103/1463-1741.70506
4. American Speech-Language-Hearing Association. (central) auditory processing disorders [Technical Report]. 2005. Available from www.asha.org/policy. doi: 10.1044/policy.TR2005-00043
5. Shobha NH, Thomas TG, Subbarao K. Experimental evaluation of improvement in consonant recognition for the hearingimpaired listeners: role of consonant-vowel intensity ratio. Journal of Theoretical and Applied Information Technology. 2009;7(2):105-9.
6. Neuman AC, Hochberg I. Children's perception of speech in reverberation. J Acoust Soc Am. 1983;73(6):2145-9
7. Johnson CE. Children's phoneme identification in reverberation and noise. J Speech Lang Hear Res. 2000;43(1):144-57. doi:10.1044/jslhr.4301.144
8. Nishi K, Lewis DE, Hoover BM, Choi S, Stelmachowicz PG. Children's recognition of American English consonants in noise. J Acoust Soc Am. 2010;127(5):3177-88. doi: 10.1121/1.3377080
9. Leibold LJ, Buss E. Children's identification of consonants in a speech-shaped noise or a two-talker masker. J Speech Lang Hear Res. 2013;56(4):1144-55. doi: 10.1044/1092-4388(2012/12-0011)
10. American National Standards Institute. Specification for audiometers (ANSI S3.6-2004). New York, NY:Author. 2004.
11. Oldfield RC. The assessment and analysis of handedness: the Edinburgh inventory. Neuropsychologia. 1971;9(1):97-113.
12. Lotfi Y, Kargar S, Javanbakht M, Biglarian A. Development, validity and reliability of the Persian version of the consonant-vowel in white noise test. Journal of Rehabilitation Sciences and Research. 2016;3(2):29-34.
13. Bishop DV, Anderson M, Reid C, Fox AM. Auditory development between 7 and 11 years: an event-related potential (ERP) study. PLoS One. 2011 9;6(5):e18993. doi: 10.1371/journal.pone.0018993
14. Danhauer JL, Abdala C, Johnson C, Asp C. Perceptual features from normal-hearing and hearing-impaired children's errors on the NST. Ear Hear. 1986;7(5):318-22.
15. Yathiraj A, Vanaja CS. Age related changes in auditory processes in children aged 6 to 10 years. Int J Pediatr Otorhinolaryngol. 2015;79(8):1224-34. doi: 10.1016/j.ijporl.2015.05.018
16. Lotfi Y, Salim S, Mehrkian S, Ahmadi T, Biglarian A. The Persian version of words-in-noise test for young population: development and validation. Aud Vestib Res. 2016;25(4):194-200.
17. Neijenhuis K, Snik A, Priester G, van Kordenoordt S, van den Broek P. Age effects and normative data on a Dutch test battery for auditory processing disorders. Int J Audiol. 2002;41(6):334-46. doi: 10.3109/14992020209090408
18. Stollman MH, van Velzen EC, Simkens HM, Snik AF, van den Broek P. Development of auditory processing in 6-12-year-old children: a longitudinal study. Int J Audiol. 2004;43(1):34-44. doi: 10.1080/14992020400050006