Research Information System
in: Exploration of the Intersection of Corpus Linguistics and Language Science, Hakan Cangır,Kutay Uzun,Taner Can,Enis Oğuz, Editor, IGI Global yayınevi, Pennsylvania, pp.133-156, 2025
This chapter illustrates how an online speech corpus can be employed in educational contexts to enhance phonemic awareness, stimulate research curiosity, and facilitate data-driven learning. The study examines the production and substitution patterns of voiced and voiceless dental fricatives among native Turkish speakers of English, while investigating the influences of age of acquisition and length of residence. Phonemic substitution patterns were analyzed using speech samples from 24 speakers obtained from an online corpus. The findings indicate that native Turkish speakers primarily substitute [t] for /θ/ and [d] for /ð/, with occasional substitutions of [n] for the voiced fricative and [s] for the voiceless one. Participants experienced difficulties with /θ/ in consonant clusters but performed better with /ð/ when it occurred between vowels. The results suggest that early language acquisition and extended residence do not consistently lead to native-like production. Additionally, an analysis of voice onset times was conducted to further evaluate the nature of these substitutions.