Vowel production by Mandarin speakers of English

An acoustic study of American English vowels produced by native Mandarin sp eakers was performed. First and second formant frequencies ( F1 and F2) of 11 vowels were examined in syllable-level productions of 40 Mandarin speake rs compared to 40 American English speakers. Results of comparative acousti c analysis indicated that male and female Mandarin speakers differed signif icantly from American English speakers in their production of several Engli sh vowels. For female and male Mandarin speakers, the overall vowel quadril aterals appeared to be smaller than corresponding American speakers' quadri laterals. The general pattern shown across the Mandarin subjects was one in which vowels are produced with less acoustic diversity compared to native speakers of American English. Phonetic influences of the Mandarin language on production of American English vowels are discussed, as are implications of these findings with regard to clinical management of Chinese individual s who speak English as a second language.