This study examined Korean three-way stop contrasts produced by North Korean (NK) immigrant speakers now living in South Korea, from the perspective of second dialect acquisition (SDA). Their production was compared with that of South Korean (SK) speakers. SK speakers and NK refugee speakers (N = 22 each) completed three tasks designed to elicit careful and conversational speech: reading aloud lists of one-syllable words and short phrases and participating in a sociolinguistic interview. The potential acoustic cues voice onset time (VOT), F0, and H1-H2 were measured and analyzed for 14,478 stops. Results indicated that in conversational speech (interview), SK speakers neutralized VOT between lenis and aspirated and used F0 robustly to differentiate the two categories, while distinguishing the long VOT for lenis and aspirated from the short VOT for fortis stops. In careful speech (reading one-syllable words), SK speakers differentiated all three categories by VOT. In contrast, NK speakers distinguished all three categories by VOT in all tasks, except for neutralizing the contrast for fortis and lenis in phrase reading. Furthermore, F0 was not used as robustly by NK as by SK speakers. We also examined the effects of age of arrival (AoA) and length of residence (LoR) on NK speakers’ SDA. Our results indicated that the longer the NK refugees lived in SK, the more they could produce more SK-like stops. The results suggest that NK stop contrasts are likely distinguished by VOT, and these refugee speakers are in the process of acquiring SK stop patterns.
AbramsonA. S.LiskerL. (1985). Relative power of cues: F0 shift versus voice timing. In FromkinV. (Eds.), Phonetic linguistics: Essays in honor of Peter Ladefoged (pp. 25–33). Academic Press.
2.
AhnH. (1999). Post-release phonatory processes in English and Korean: Acoustic correlates and implications for Korean phonology [Doctoral dissertation, The University of Texas at Austin]. ProQuest Dissertations and Theses Global. https://www.proquest.com/docview/304527961/abstract/852F5BE7442049E0PQ/1
3.
AnastassiadisT.RalliA.GekasS.PappasP.SiotouA.TsolakidisS.KarachaliouR.RsimpourisC.PapanagiotouC. (2017). Immigration and language in Canada: Greeks and Greek-Canadians questionnaire. Immigrec Database. https://immigrec.com
4.
BaayenR. H.DavidsonD. J.BatesD. M. (2008). Mixed-effects modeling with crossed random effects for subjects and items. Journal of Memory and Language, 59(4), 390–412. https://doi.org/10.1016/j.jml.2007.12.005
5.
BangH.-Y.SondereggerM.KangY.ClayardsM.YoonT.-J. (2018). The emergence, progress, and impact of sound change in progress in Seoul Korean: Implications for mechanisms of tonogenesis. Journal of Phonetics, 66, 120–144. https://doi.org/10.1016/j.wocn.2017.09.005
6.
BatesD.MächlerM.BolkerB.WalkerS. (2015). Fitting linear mixed-effects models using lme4. Journal of Statistical Software, 67(1), 1–48. https://doi.org/10.18637/jss.v067.i01
BrownL. (2011). Korean honorifics and “revealed,” ‘ignored,’ and “suppressed” aspects of Korean culture and politeness. In Bargiela-ChiappiniF.KádárD. (Eds.), Politeness across cultures (pp. 106–127). Palgrave Macmillan UK.
9.
CarmichaelK. (2014). “I never thought I had an accent until the hurricane”: Sociolinguistic variation in post-Katrina Greater New Orleans [Doctoral dissertation, University of Ohio]. ProQuest Dissertations and Theses Global.
10.
CarmichaelK. (2017). Displacement and local linguistic practices: R-lessness in post-Katrina Greater New Orleans. Journal of Sociolinguistics, 21, 696–719. https://doi.org/10.1111/josl.12253
ChoT. (2022). Linguistic functions of prosody and its phonetic encoding with special reference to Korean. Japanese/Korean Linguistics, 29, 1–24.
13.
ChoT.JunS. A. (2000). Domain-initial strengthening as enhancement of laryngeal features: Aerodynamic evidence from Korean. UCLA Working Papers in Phonetics, 57–70.
14.
ChoT.JunS. A.LadefogedP. (2002). Acoustic and aerodynamic correlates of Korean stops and fricatives. Journal of Phonetics, 30(2), 193–228. https://doi.org/10.1006/jpho.2001.0153
15.
ChoT.KimD. J.KimS. (2019). Prosodic strengthening in reference to the lexical pitch accent system in South Kyungsang Korean. The Linguistic Review, 36(1), 85–115. https://doi.org/10.1515/tlr-2018-2007
16.
ChoT.LeeY.KimS. (2011). Communicatively driven versus prosodically driven hyper-articulation in Korean. Journal of Phonetics, 39(3), 344–361. https://doi.org/10.1016/j.wocn.2011.02.005
17.
ChoiJ.KimS.ChoT. (2020). An apparent-time study of an ongoing sound change in Seoul Korean: A prosodic account. PLOS ONE, 15(10), Article e0240682. https://doi.org/10.1371/journal.pone.0240682
18.
EckertP.RickfordJ. R. (Eds.). (2001). Style and sociolinguistic variation. Cambridge University Press.
19.
EvansB. G.IversonP. (2004). Vowel normalization for accent: An investigation of best exemplar locations in northern and southern British English sentences. The Journal of the Acoustical Society of America, 115(1), 352–361.
20.
EvansB. G.IversonP. (2007). Plasticity in vowel perception and production: A study of accent change in young adults. The Journal of the Acoustical Society of America, 121(6), 3814–3826.
21.
GafterR. J. (2016). What’s a stigmatized variant doing in the word list? Authenticity in reading styles and Hebrew pharyngeals. Journal of Sociolinguistics, 20(1), 31–58. https://doi.org/10.1016/j.wocn.2014.03.005
22.
GaoJ.AraiT. (2019). Plosive (de-)voicing and f0 perturbations in Tokyo Japanese: Positional variation, cue enhancement, and contrast recovery. Journal of Phonetics, 77, 100932. https://doi.org/10.1016/j.wocn.2019.100932
23.
GilesH.TaylorD. M.BourhisR. Y. (1973). Towards a theory of interpersonal accommodation through speech: Some Canadian data. Language in Society, 2, 177–192.
24.
HanM. S.WeitzmanR. S. (1970). Acoustic features of Korean /P, T, K/, /p, t, k/ and /pʰ, tʰ, kʰ/. Phonetica, 22(2), 112–128. https://doi.org/10.1159/000259311
25.
HollidayJ. J. (2015). A longitudinal study of the second language acquisition of a three-way stop contrast. Journal of Phonetics, 50, 1–14. https://doi.org/10.1016/j.wocn.2015.01.004
26.
IdemaruK.GuionS. G. (2008). Acoustic covariants of length contrast in Japanese stops. Journal of the International Phonetic Association, 38(2), 167–186. https://doi.org/10.1017/S0025100308003459
27.
IdemaruK.HoltL. L. (2011). Word recognition reflects dimension-based statistical learning. Journal of Experimental Psychology: Human Perception and Performance, 37, 1939–1956. https://doi.org/10.1037/a0025641
28.
IdemaruK.VaughnC. (2020). Perceptual tracking of distinct distributional regularities within a single voice. The Journal of the Acoustical Society of America, 148(6), EL427–EL432.
29.
JangH. J. (2017). 20 seyki cenki kwuke etwu phyeyswayumuy sengtaycintong sicaksikan (VOT) yenkwu: Pothonghakkyo cosenetokpon, kimpokcinuy tonghwakwuyen calyolul pathangulo [Study of VOT in stops in early 20th century: Based on Kim Bok-Jin’s Joseon language reading]. Hankwukehak [Korean Linguistics], 77, 311–329.
30.
JohnsonD. E.NyczJ. (2015). Partial mergers and near-distinctions: Stylistic layering in dialect acquisition. University of Pennsylvania Working Papers in Linguistics, 21(2), 13.
31.
JunS. A. (1998). The accentual phrase in the Korean prosodic hierarchy. Phonology, 15(2), 189–226.
JunS. A. (2005). Prosodic typology: The phonology of intonation and phrasing. Oxford University Press.
34.
KangK. H. (2010). Generational differences in the perception of Korean stops. Phonetics and Speech Sciences, 2(3), 3–10.
35.
KangK. H.GuionS. G. (2008). Clear speech production of Korean stops: Changing phonetic targets and enhancement strategies. The Journal of the Acoustical Society of America, 124(6), 3909–3917. https://doi.org/10.1121/1.2988292
36.
KangK. H.GuionS. G. (2009). Sound change and perceptual weight of acoustic correlates to Korean stops. The Journal of the Acoustical Society of America, 125(4), 2568–2568. https://doi.org/10.1121/1.4783727
37.
KangS. K. (1996). Nampwukhanuy moumpwunsek [Acoustic analyses of South and North Korean vowels]. Ehak [Language Research], 32(1), 1–18.
38.
KangS. K. (1997). Hamkyengpangenuy moumcheykyey [The vowel systems of the Hamkyong dialect]. Ehakyenkwu [Linguistic Study], 33(1), 117–135.
39.
KangS. K. (1999a). The merger of back vowels in North Korean. Speech Sciences, 5(2), 41–55.
40.
KangS. K. (1999b). Pwukhan moum /wu/ yess /u/ eyse palkyentoynun kwaingkyoceng hyensang [The hypercorrection of vowel /u/ → /ɯ/ in North Korean dialects]. Umsengkwahak [Speech Sciences], 6(1), 43–54.
41.
KangY. (2014). Voice onset time merger and development of tonal contrast in Seoul Korean stops: A corpus study. Journal of Phonetics, 45, 76–90.
42.
KangY. J.YunS. Y. (2018, June). Acquisition of second dialect features by North Koreans in Seoul [Poster presentation]. Meeting of LabPhon16, University of Lisbon, Lisbon, Portugal.
43.
KimC. W. (1965). On the autonomy of the tensity feature in stop classification (with special reference to Korean stops). WORD, 21(3), 339–359. https://doi.org/10.1080/00437956.1965.11435434
44.
KimJ. U.JangD. J. (2007). Aliens among brothers? The status and perception of North Korean refugees in South Korea. Asian Perspective, 31, 5–22.
45.
KimM. (2004). Correlation between VOT and F0 in the perception of Korean stops and affricates [Conference session]. Eighth International Conference on Spoken Language Processing.
KirbyJ. P. (2018). Onset pitch perturbations and the cross-linguistic implementation of voicing: Evidence from tonal and non-tonal languages. Journal of Phonetics, 71, 326–354. https://doi.org/10.1016/j.wocn.2018.09.009
48.
KongE. J.LeeH. (2018). Attentional modulation and individual differences in explaining the changing role of fundamental frequency in Korean laryngeal stop perception. Language and Speech, 61(3), 384–408.
49.
LabovW. (1966). The linguistic variable as a structural unit. Distributed by Educational Resources Information Center Clearinghouse. https://eric.ed.gov/?id=ED010871
50.
LabovW. (1973). Sociolinguistic patterns. University of Pennsylvania Press.
51.
LabovW. (2006). The social stratification of English in New York City. Cambridge University Press.
52.
LeeH. B. (1991). Pwukhanuy wulimal umsenghak yenkwu hyenhwang [Phonetic study in North Korea]. Hankul [Korean], 213, 7–28.
LiF. (2013). The effect of speakers’ sex on voice onset time in Mandarin stops. The Journal of the Acoustical Society of America, 133(2), EL142–EL147. https://doi.org/10.1121/1.4778281
MunroM. J.DerwingT. M.FlegeJ. E. (1999). Canadians in Alabama: A perceptual study of dialect acquisition in adults. Journal of Phonetics, 27(4), 385–403. https://doi.org/10.1006/jpho.1999.0101
NyczJ. (2013). Changing words or changing rules? Second dialect acquisition and phonological representation. Journal of Pragmatics, 52, 49–62. https://doi.org/10.1016/j.pragma.2012.12.014
63.
NyczJ. (2015). Second dialect acquisition: A sociophonetic perspective. Language and Linguistics Compass, 9(11), 469–482. https://doi.org/10.1111/lnc3.12163
64.
NyczJ. (2018). Stylistic variation among mobile speakers: Using old and new regional variables to construct complex place identity. Language Variation and Change, 30(2), 175–202.
OhM.YangH. (2013). The production of stops by Seoul and Yanbian Korean speakers. Phonetics and Speech Sciences, 5(4), 185–193. https://doi.org/10.13064/KSSS.2013.5.4.185
68.
ParkM. Y. (2022). ‘I don’t want to be distinguished by others’: Language ideologies and identity construction among North Korean refugees in South Korea. Language Awareness, 31(3), 271–287.
69.
ParkM. Y.MayS. (2025). Linguistic discrimination in higher education: Experiences of North Korean university students in South Korea. Language, Culture and Curriculum, 38(1), 113–129.
70.
PayneA. (1980). Factors controlling the acquisition of the Philadelphia dialect by out-of-state children. In LabovW. (Ed.), Locating language in time and space (pp. 143–178). Academic Press.
71.
R Core Team. (2023). R: A language and environment for statistical computing [R Foundation for Statistical Computing, Vienna, Austria]. https://www.R-project.org/
SilvaD. J. (2006b). Variation in voice onset time for Korean stops: A case for recent sound change. Korean Linguistics, 13, 1–16.
76.
SinC. Y.ShinJ.KiaerJ.ChaJ. (2012). The sounds of Korean. Cambridge University Press.
77.
SohnH. M. (2001). The Korean language. Cambridge University Press.
78.
SondereggerM.KeshetJ. (2012). Automatic measurement of voice onset time using discriminative structured prediction. The Journal of the Acoustical Society of America, 132(6), 3965–3979. https://doi.org/10.1121/1.4763995
79.
StarksD.BayardD. (2002). Individual variation in the acquisition of postvocalic /r/: Day care and sibling order as potential variables. American Speech, 77(2), 184–194. https://muse.jhu.edu/pub/4/article/2852
80.
Stuart-SmithJ.PryceG.TimminsC.GunterB. (2013). Television can also be a factor in language change: Evidence from an urban dialect. Language, 89(3), 501–536. https://www.jstor.org/stable/24671937
81.
Stuart-SmithJ.SondereggerM.RathckeT.MacdonaldR. (2015). The private life of stops: VOT in a real-time corpus of spontaneous Glaswegian. Laboratory Phonology, 6(3–4), 505–549.
82.
TagliamonteS. A.MolfenterS. (2007). How’d you get that accent? Acquiring a second dialect of the same language. Language in Society, 36(5), 649–675. https://doi.org/10.1017/S0047404507070911
83.
TrudgillP. (1986). Social identity and linguistic sex differentiation. In SankoffD. (Ed.), Dialect and language variation (pp. 395–402). Academic Press.
WellsJ. C. (1982). Accents of English: Volume 1. Cambridge University Press.
86.
WinterB.GrawunderS. (2011). The polite voice in Korean: Searching for acoustic correlates of contaymal and panmal. Japanese/Korean Linguistics, 19, 419–431.
