Phonology in New Varieties of English: Hong Kong English Diphthongs
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PHONOLOGY IN NEW VARIETIES OF ENGLISH: HONG KONG ENGLISH DIPHTHONGS Jane Setter†, Chris Ryder† and Peggy Mok‡ †University of Reading, ‡The Chinese University of Hong Kong [email protected], [email protected], [email protected] ABSTRACT produced by HKE speakers. We then discuss the possible effects of these productions on listeners Studies of vowels in Hong Kong English (HKE) who are unfamiliar with HKE. have revealed that it has diphthongs which are not dissimilar from British English (BrE). However, 2. THE SYLLABLE IN CANTONESE AND impressionistically, diphthongs in HKE can and do ENGLISH sound different. This paper looks at two perceptual phenomena: 2.1. Cantonese monophthongisation of GOAT; and coda consonant Cheung [4] views the syllable as the “primary loss in words containing closing diphthongs phonological isolate” in Cantonese and analyses it as followed by a geminate alveolar plosive. We follows, where S = syllable, T = tone, O = onset, R = indicate that patterns of production exist which rime, V = vowel and Cd = coda: could cause problems of intelligibility for listeners who are less familiar with the variety. (1) S → T (+ O) + R Keywords: Diphthongs; Hong Kong English; L1 R → V (+ Cd) transfer; syllable structure. From this description, it can be seen that the coda is 1. INTRODUCTION an optional element in Cantonese. As mentioned, Cantonese syllable structure determines that, in There has been a fair amount of research on diphthongs, the coda position is occupied by the phonology and pronunciation in HKE. For example, glide element; there are no syllables in Cantonese Hung’s [8] overview of the phonology of the variety which have diphthong + oral or nasal stop as the was followed up by Deterding, Wong and rime. Figure 1 below, adapted from Bauer and Kirkpatrick [6] who found that, although HKE Benedict [2], gives all possible combinations of rime shares many phonological features with Singapore elements in Cantonese, with the glides given as [j], English (SE), it also contains features found only in [y] or [w] (second, third and fourth columns), and ∅ BrE but not in other Englishes in South-East Asia; indicating an open syllable. they attributed such differences to the different developmental stages of the two English varieties. Figure 1: Rime elements in Cantonese. Peng and Setter [9] looked at consonant cluster deletion; Setter considered speech rhythm [10] and j y w m/p n/t ŋ/k ∅ syllable structure [11]; and Setter et al. [12] found iː - - + + + - + that the production of juncture cues in HKE made it ɪ - - - - - + - more intelligible than SE or BrE to HKE, SE and yː - - - - + - + BrE listeners. ɛː - - - - - + + HKE is undoubtedly influenced by Cantonese, e + - - - - - - which is the first language (L1) of HKE speakers. œ - - - - - + + This being the case, one might expect diphthongs ø - + - - + - - followed by coda consonants to be affected, as aː + - + + + + + Cantonese phonology considers the coda position to ɐ + - + + + + - be occupied by the diphthongal glide [2]. This paper uː + - - - + - + ʊ - - - - - + - looks at two perceived features associated with ɔː + - - - + + + diphthongs in HKE: monophthongisation of the o - - + - - - - GOAT vowel; and coda consonant loss in words containing closing diphthongs followed by /d/ where Where there is an oral stop coda, this is strongly the next word begins with /t/. Instrumental analysis glottalised and has the effect of shortening the indicates how these two features are actually preceding vowel quite considerably [2,4]. 2.2. British English 3. METHODOLOGY BrE, by comparison, is much less restrictive. Not 3.1. Participants only are consonants permitted to follow diphthongs, it is possible to have diphthongs followed by 25 speakers each for BrE and HKE were recruited in consonant clusters (e.g., most; bikes; sounds). It is Reading and Hong Kong respectively (altogether 50 also possible to have fricatives, alveolar lateral /l/ participants).Participants were all university students (e.g., boil) and voiced obstruents (e.g., hide; rouse) with no speech or language impairment. The British following a diphthong; in Cantonese, these types of speakers were all monolingual native English sound are not found in syllable coda position at all. speakers. Some of them had limited exposure to Like Cantonese, the type of consonant has an foreign languages. The Hong Kong participants had effect on the duration of the preceding vowel in BrE, not lived in an English-speaking country before, and with voiceless obstruent consonants shortening it had received all of their education in Hong Kong. considerably; this is known as (pre-)fortis clipping Their accents are typical of the varieties they [1], as voiceless obstruents are sometimes referred to represent. All participants were paid to participate as fortis (in comparison with lenis). in the experiment. 2.3. The present study 3.2. Materials Our study investigates two factors affecting A list of 65 monosyllabic words was compiled, each diphthongs followed by coda consonants in HKE. It containing a unique pairing of an English closing was instigated by the first author’s interest in this diphthong – /aɪ/, /eɪ/, /ɔɪ/, /aʊ/ or /əʊ/ – and a single- subject as a speaker of BrE listening to speakers of consonant coda. The illegal BrE diphthong codas HKE produce words containing these sequences, as /r/, /w/, /j/ and /ŋ/, as well as pairings for which real there seemed to be a loss of contrast in some words do not exist, such as /ɔɪb/, were ignored. productions which could lead to unintelligibility. Centring diphthongs were excluded from this The first area under scrutiny is experiment. monophthongisation of syllables containing the Each of the 65 words was inserted into a carrier GOAT vowel. Production of GOAT containing a phrase ‘I read _________ to you’ with emphatic vowel more similar to BrE THOUGHT could lead to stress falling on the word ‘I’ in order to minimize loss of distinction between minimal pairs such as stress and intonational differences between each bowl/ball and coat/caught. While context and phrase. grammatical category may help a listener to understand the meaning, unexpected vowel choices 3.1. Procedure can temporarily distract a listener and demand greater cognitive resources be directed to processing Participants were recorded reading each of the 65 the entire stream of speech [3]. words in the carrier phrase a total of three times each The second area is production of coda consonants to allow for mistakes or interference, thus producing and duration of the vowel in words containing a a total of 195 recordings per speaker. The phrases closing diphthong which is followed by a geminate were initially randomized and split between three alveolar plosive; the gemination is brought about by groups, which in turn were randomized between the occurrence of an alveolar onset to the following speakers. syllable. It was noticed that many HKE speakers Recordings were made in a sound-proof booth appeared to elide the final consonant in such directly to PC at 44.1kHz, 16 bit mono using the situations. This could again lead to issues of analytical program Audacity and a Samson C01U unintelligibility if a listener unused to this pattern USB condenser microphone. The recordings were perceived e.g. sigh instead of side. later split into individual recordings of each phrase As an exploratory study, instrumental for further analysis. measurements of a small sample of HKE and BrE 4. RESULTS speakers were carried out to ascertain the differences in patterns of production among HKE speakers who Following initial observations, four HKE speakers (3 were heard to display the above pronunciation female, 1 male) were identified for further analysis features in comparison with BrE speakers. It should as they regularly exhibited the monophthongisation be noted that the authors are not intending to imply and coda elision described above. Four randomly- that BrE has any superiority over HKE as a variety. selected BrE speakers (all female) were also analysed in the same ways in order to draw equal comparisons between varieties. Each of the three unlike Hung’s [8] measurements for the diphthong productions made by the speakers was analysed. in coat. 4.1. Monophthongisation 4.2. Coda Elision The words cope, robe, joke and vogue were The perceived elision of codas was observed in the identified as frequently containing monophthongised four HKE speakers as regular where there was no GOAT vowels. PRAAT was used to measure the audible release of the /d/ plosive across all five frequency in Hertz of the first (F1) and second (F2) diphthongs, in the words side, fade, void, loud and formants at both the onset and offset of the vowels mode. PRAAT was again used to measure the in all instances of these words in all the speakers length in seconds of the vowel itself as well as the analysed (i.e., 48 measurements for each variety). pause preceding the release of the following /t/, with An average was derived from these measurements which /d/ would usually be geminate when not and is depicted by Figure 1. audibly released. Measurements were taken for all recordings of Figure 1: Movement of GOAT vowel from onset /ə/ to these words for each of the eight speakers, including offset target /ʊ/ in average BrE and HKE pronunciation those where there was an audible release of /d/, of cope, robe, joke and vogue. which were kept separate. Figure 2 shows that, on average, the shortest diphthongs were found in BrE speakers producing no audible release (BrE-NAR), while the longest were in HKE speakers with this production (HKE-NAR). The shortest pause lengths were shared by speakers of both varieties where there was an audible release (BrE-R and HKE-R) and the longest were by BrE-NAR speakers. Measurements were not taken to differentiate individual or variety-specific speaking rates; however, this does not affect the relative changes in vowel and pause lengths within varieties shown As the frequency of both the F1 and F2 should be here.