This paper aims to propose a gradient of learnability as a criterion for setting priorities in pronunciation teaching. A total of 40 Korean subjects (mostly aged 12 years) were tested on their discrimination ability of English sounds before and after participating in a high variability phonetic training (HVPT) program for 4 weeks. This study shows highly promising results for pronunciation teaching with the HVPT method. First, lower level learners show greater improvements in phoneme discrimination ability compared to upper level learners. Second, consonants are better discriminated than vowels and greater improvements are seen with consonant contrasts than with vowels that have a lower functional load. Third, many of the sounds with a high functional load have high learnability. Fourth, greater improvements are seen with sounds that are poorly identified before the training than sounds that are well-identified. Fifth, young learners also benefit from the HVPT, much like highly motivated adult learners. A learnability gradient was established on the basis of the phoneme learnability index and the pairwise learnability index. On the basis of the constructed gradient of learnability and the concept of functional load, a set of priorities was provided for teaching English pronunciation to young Korean learners.

1.
Bang
,
J.
,
Lee
,
J.
,
Lee
,
G. G.
, and
Chung
,
M.
(
2014
). “
Pronunciation variants prediction method to detect mispronunciations by Korean learners of English
,”
ACM Trans. Asian Language Inf. Processing
13
,
1
21
.
2.
Bradlow
,
A. R.
,
Akahane-Yamada
,
R.
,
Pisoni
,
D. B.
, and
Tohkura
,
Y.
(
1999
). “
Training Japanese listeners to identify English /r/ and /l/: Long-term retention of learning in perception and production
,”
Percept. Psychophys.
61
,
977
985
.
3.
Bradlow
,
A. R.
,
Pisoni
,
D. B.
,
Yamada
,
R.
, and
Tokhura
,
Y.
(
1997
). “
Training Japanese listeners to identify English /r/ and /l/: IV. Some effects of perceptual learning on speech production
,”
J. Acoust. Soc. Am.
101
,
2299
2310
.
4.
Brown
,
A.
(
1988
). “
Functional load and the teaching of pronunciation
,”
TESOL Quart.
22
,
593
606
.
5.
Brown
,
A.
(
1995
). “
Minimal pairs: Minimal importance?
,”
ELT J.
49
,
169
175
.
6.
Catford
,
J. C.
(
1987
). “
Phonetics and the teaching of pronunciation: A systemic description of English phonology
,” in
Current Perspectives on Pronunciation
, edited by
J.
Morley
(
TESOL
,
Alexandria, VA
), pp.
87
100
.
7.
Dauer
,
R. M.
(
2005
). “
The Lingua Franca Core: A new model for pronunciation instruction?
,”
TESOL Quart.
39
,
543
550
.
8.
Derwing
,
T. M.
, and
Munro
,
M. J.
(
1997
). “
Accent, intelligibility, and comprehensibility
,”
Studies Sec. Lang. Acquisition
19
,
1
16
.
9.
Derwing
,
T. M.
,
Munro
,
M. J.
, and
Wiebe
,
G.
(
1998
). “
Evidence in favor of a broad framework for pronunciation instruction
,”
Lang. Learning
48
,
393
410
.
10.
Derwing
,
T. M.
, and
Rossiter
,
M. J.
(
2003
). “
The effects of pronunciation instruction on the accuracy, fluency, and complexity of L2 accented speech
,”
Appl. Lang. Learning
13
,
1
18
.
11.
Goto
,
H.
(
1971
). “
Auditory perception by normal Japanese adults of the sounds ‘L’ and ‘R,’
Neuropsychologia
9
,
317
323
.
12.
Hahn
,
L. D.
(
2004
). “
Primary stress and intelligibility: Research to motivate the teaching of suprasegmentals
,”
TESOL Quart.
38
,
201
223
.
14.
Hazan
,
V.
,
Sennema
,
A.
,
Faulkner
,
A.
,
Ortega-Llebaria
,
M.
,
Iba
,
M.
, and
Chung
,
H.
(
2006
). “
The use of visual cues in the perception of non-native consonant contrasts
,”
J. Acoust. Soc. Am.
119
,
1740
1751
.
13.
Hazan
,
V.
,
Sennema
,
A.
,
Iba
,
M.
, and
Faulkner
,
A.
(
2005
). “
Effect of audiovisual perceptual training on the perception and production of consonants by Japanese learners of English
,”
Speech Commun.
47
,
360
378
.
15.
Hockett
,
C. F.
(
1967
). “
The quantification of functional load
,”
Word
23
,
320
339
.
16.
Hwang
,
H.
, and
Lee
,
H. Y.
(
2015
). “
The effect of high variability phonetic training on the production of English vowels and consonants
,” in
Proceedings of the 18th International Congress of Phonetic Sciences
,
Glasgow, UK
, edited by The Scottish Consortium for ICPhS 2015, paper number 1041.1-9.
18.
Ingram
,
J. C.
, and
Park
,
S. G.
(
1998
). “
Language, context, and speaker effects in the identification and discrimination of English /r/ and /l/ by Japanese and Korean listeners
,”
J. Acoust. Soc. Am.
103
,
1161
1174
.
19.
Intelligent Software Lab (
2013
). “
Postech English Speech Assessment and Assistant (PESAA)
,” http://nlp.postech.ac.kr/research/language_learning/pesaa/ (Last viewed July 20, 2015).
20.
Iverson
,
P.
, and
Evans
,
B. G.
(
2007
). “
Learning English vowels with different first-language vowel systems: Perception of formant targets, formant movement, and duration
,”
J. Acoust. Soc. Am.
122
(
5
),
2842
2854
.
21.
Iverson
,
P.
, and
Evans
,
B. G.
(
2009
). “
Learning English vowels with different first-language vowel systems II: Auditory training for native Spanish and German speakers
,”
J. Acoust. Soc. Am.
126
,
866
877
.
22.
Iverson
,
P.
,
Hazan
,
V.
, and
Bannister
,
K.
(
2005
). “
Phonetic training with acoustic cue manipulations: A comparison of methods for teaching English /r/-/l/ to Japanese adults
,”
J. Acoust. Soc. Am.
118
,
3267
3278
.
23.
Iverson
,
P.
,
Pinet
,
M.
, and
Evans
,
B. G.
(
2012
). “
Auditory training for experienced and inexperienced second-language learners: Native French speakers learning English vowels
,”
Appl. Psycholinguistics
33
,
145
160
.
24.
Jenkins
,
J.
(
1998
). “
Which pronunciation norms and models for English as an International Language?
,”
ELT J.
52
,
119
126
.
25.
Jenkins
,
J.
(
2000
).
The Phonology of English as an International Language
(
Oxford University Press
,
Oxford, UK
),
266
pp.
26.
Jenkins
,
J.
(
2002
). “
A sociolinguistically based, empirically researched pronunciation syllabus for English as an international language
,”
Appl. Linguistics
23
,
83
103
.
27.
Kelly
,
L. G.
(
1969
).
25 Centuries of Language Teaching
(
Newbury House
,
Rowley, MA
), pp.
60
87
.
29.
Kingston
,
J.
(
2003
). “
Learning foreign vowels
,”
Lang. Speech.
46
,
295
348
.
30.
Lambacher
,
S. G.
,
Martens
,
W. L.
,
Kakehi
,
K.
,
Marasinghe
,
C. A.
, and
Molholt
,
G.
(
2005
). “
The effects of identification training on the identification and production of American English vowels by native speakers of Japanese
,”
Appl. Psycholinguistics
26
,
227
247
.
31.
Lee
,
H. Y.
(
1996
).
Korean Phonetics
(in Korean) (
Thahaksa
,
Seoul
), Chap. 4 and 5, pp.
67
123
.
32.
Levis
,
J. M.
(
2005
). “
Changing contexts and shifting paradigms in pronunciation teaching
,”
TESOL Quart.
39
,
369
377
.
33.
Lively
,
S. E.
,
Logan
,
J. S.
, and
Pisoni
,
D. B.
(
1993
). “
Training Japanese listeners to identify English /r/ and /l/. II: The role of phonetic environment and talker variability in learning new perceptual categories
,”
J. Acoust. Soc. Am.
94
,
1242
1255
.
34.
Lively
,
S. E.
,
Pisoni
,
D. B.
,
Yamada
,
R.
,
Tokhura
,
Y.
, and
Yamada
,
T.
(
1994
). “
Training Japanese listeners to identify English /r/ and /l/. III. Long-term retention of new phonetic categories
,”
J. Acoust. Soc. Am.
96
,
2076
2087
.
35.
Logan
,
J. S.
,
Lively
,
S. E.
, and
Pisoni
,
D. B.
(
1991
). “
Training Japanese listeners to identify English /r/ and /l/: A first report
,”
J. Acoust. Soc. Am.
89
,
874
886
.
36.
Miyawaki
,
K.
,
Jenkins
,
J. J.
,
Strange
,
W.
,
Liberman
,
A. M.
,
Verbrugge
,
R.
, and
Fujimura
,
O.
(
1975
). “
An effect of linguistic experience: The discrimination of and [l] by native speakers of Japanese and English
,”
Percept. Psychophys.
18
,
331
340
.
37.
Morley
,
J.
(
1991
). “
The pronunciation component in teaching English to speakers of other languages
,”
TESOL Quart.
25
,
481
520
.
38.
Munro
,
M. J.
, and
Derwing
,
T. M.
(
1999
). “
Foreign accent, comprehensibility, and intelligibility in the speech of second language learners
,”
Lang. Learning
49
,
285
310
.
39.
Munro
,
M. J.
, and
Derwing
,
T. M.
(
2005
). “
Second language accent and pronunciation training: A research-based approach
,”
TESOL Quart.
39
,
379
397
.
40.
Munro
,
M. J.
, and
Derwing
,
T. M.
(
2006
). “
The functional load principle in ESL pronunciation instruction: An exploratory study
,”
System
34
,
520
531
.
41.
Nishi
,
K.
, and
Kewley-Port
,
D.
(
2007
). “
Training Japanese listeners to perceive American English vowels: Influence of training sets
,”
J. Speech Hear. Res.
50
,
1496
1509
.
42.
Pruitt
,
J. S.
,
Jenkins
,
J. J.
, and
Strange
,
W.
(
2006
). “
Training the perception of Hindi dental and retroflex stops by native speakers of American English and Japanese
,”
J. Acoust. Soc. Am.
119
,
1684
1696
.
43.
Saito
,
K.
(
2011
). “
Identifying problematic segmental features to acquire comprehensible pronunciation in EFL settings: The case of Japanese learners of English
,”
RELC J.
42
,
363
378
.
44.
Saito
,
K.
(
2014
). “
Experienced teachers’ perspectives on priorities for improved intelligible pronunciation: The case of Japanese learners of English
,”
Int. J. Appl. Linguistics
24
,
250
277
.
45.
Stokes
,
S. F.
, and
Surendran
,
D.
(
2005
). “
Articulatory complexity, ambient frequency, and functional load as predictors of consonant development in children
,”
J. Speech Hear. Res.
48
,
577
591
.
46.
Surendran
,
D.
, and
Niyogi
,
P.
(
2003
). “
Measuring the usefulness (functional load) of phonological contrasts
,” Technical Report TR-2003 (Department of Computer Science, University of Chicago, Chicago, IL), Vol.
12
, pp.
1
13
.
47.
Surendran
,
D.
, and
Niyogi
,
P.
(
2006
). “
Quantifying the functional load of phonemic oppositions, distinctive features, and suprasegmentals
,” in
Competing Models of Language Change: Evolution and Beyond
, edited by
O.
Nedergaard Thomsen
(
John Benjamins
,
Amsterdam, the Netherlands
), pp.
43
58
.
48.
Wingstedt
,
M.
, and
Schulman
,
R.
(
1987
). “
Comprehension of foreign accents
,” in
Phonologica 1984
, edited by
W.
Dressler
,
H.
Luschutzky
,
O.
Pfeiffer
, and
J.
Rennison
. (
Cambridge University Press
,
Cambridge, UK
), pp.
339
345
.
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