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  • de Jong, Kenneth  (57)
  • Comparative Studies. Non-European Languages/Literatures  (57)
  • 11
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2007
    In:  The Journal of the Acoustical Society of America Vol. 122, No. 5_Supplement ( 2007-11-01), p. 2996-2996
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 122, No. 5_Supplement ( 2007-11-01), p. 2996-2996
    Abstract: This paper examines focus-induced variability in the production of labial stop contrasts in English, Japanese, and Korean, pursuing differences between the languages in how voice onset time (VOT) and fundamental frequency (F0) are used to indicate differences between stop types. Language differences are compared to differences in the perceptual usage of these acoustic cues using AMBEL, an adaptive tracking algorithm that allows subjects to search multi-dimensional stimulus arrays for best exemplars. All three languages exhibit category differences in VOT, though Japanese and Korean exhibit overlap for two of the categories. As found previously, for these categories, both Japanese and Korean exhibit large differences in F0 in the following vowel. Except for the smaller F0 differences in English, all of these VOT and F0 differences are systematically expanded in a focus condition. In particular, VOT increases for the more aspirated stops in all three languages, and substantial rising F0 patterns are observed in lenis Korean and zero-lag Japanese stops. Perceptual data match these focus effects; best exemplars differ in VOT in all three languages, and in Japanese and Korean, where substantial F0 focus effects were observed, F0 differences affect the identification of best exemplars. [Work supported by NSF.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2007
    detail.hit.zdb_id: 1461063-2
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  • 12
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2004
    In:  The Journal of the Acoustical Society of America Vol. 115, No. 5_Supplement ( 2004-05-01), p. 2504-2504
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 115, No. 5_Supplement ( 2004-05-01), p. 2504-2504
    Abstract: Experimental models of cross-language perception and second-language acquisition (such as PAM and SLM) typically treat language differences in terms of whether the two languages share phonological segmental categories. Linguistic models, by contrast, generally examine properties which cross classify segments, such as features, rules, or prosodic constraints. Such models predict that perceptual patterns found for one segment will generalize to other segments of the same class. This paper presents perceptual identifications of Korean listeners to a set of voiced and voiceless English stops and fricatives in various prosodic locations to determine the extent to which such generality occurs. Results show some class-general effects; for example, voicing identification patterns generalize from stops, which occur in Korean, to nonsibilant fricatives, which are new to Korean listeners. However, when identification is poor, there are clear differences between segments within the same class. For example, in identifying stops and fricatives, both point of articulation and prosodic position bias perceptions; coronals are more often labeled fricatives, and syllable initial obstruents are more often labeled stops. These results suggest that class-general perceptual patterns are not a simple consequence of the structure of the perceptual system, but need to be acquired by factoring out within-class differences.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2004
    detail.hit.zdb_id: 1461063-2
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  • 13
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    Online Resource
    Acoustical Society of America (ASA) ; 2011
    In:  The Journal of the Acoustical Society of America Vol. 129, No. 4_Supplement ( 2011-04-01), p. 2455-2455
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 129, No. 4_Supplement ( 2011-04-01), p. 2455-2455
    Abstract: The relationship between segmental contrasts, often modeled as being composed of distinctive features, and actual acoustic-phonetic properties is complex and many-to-many. Contrasts may be cued by a multiple acoustic-phonetic properties, and acoustic-phonetic properties often cue multiple contrasts. This paper presents a hierarchical multivariate statistical model of the relationship between a suite of 11 acoustic measurements and various target feature systems. Measurements are taken from 10 repetitions of 16 English consonants by 20 native speakers of English in both onset and coda position in nonsense monosyllables. Target feature systems range from models with little generalization across the various segments to ones that fully cross distinctive features to specify all of the segments. The statistical model enables analysis of within-speaker and between-speaker sources of variability in consonant production, and constitutes a principled statistical method for comparing these different distinctive feature models. Also, the role of the statistical model as a baseline for work on relations between different segments in perceptual categorization will be outlined.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2011
    detail.hit.zdb_id: 1461063-2
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  • 14
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2001
    In:  The Journal of the Acoustical Society of America Vol. 109, No. 5_Supplement ( 2001-05-01), p. 2311-2311
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 109, No. 5_Supplement ( 2001-05-01), p. 2311-2311
    Abstract: Stetson (1951) noted that, when repeated, singleton coda consonants (VC) appear to modulate into onset consonants (CV) as the rate of repetition increases. The current study examines whether nave listeners perceive such resyllabifications, and whether such perceptions are affected by the voicing of the resyllabified consonants. Stimuli were extracted from production experiments in which talkers repeatedly produced singleton voiced and voiceless stops in the CV or VC position. Speakers entrained to a metronome which increased tempo from 450 to 150 ms/syllable. Open-set identification revealed that (1) while slow VCs are identified as such, fast VCs are identified as CVs a majority of the time and (2) CVs are rarely identified as VCs; however (3) both CVs and VCs at fast rates are often identified as CVCs, especially when the consonant is voiceless. A forced-choice identification task indicates that fast VCs and CVs, while clearly differentiated at slow rates, are both identified as CVs 80% of the time at fast rates. These results support Stetson’s observations, but like previously reported production results, indicate that fast rate tokens are partially ambiguous between CV and VC forms, an ambiguity which can get resolved by splitting the consonant in question. [Work supported by NIDCD and NSF.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2001
    detail.hit.zdb_id: 1461063-2
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  • 15
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2014
    In:  The Journal of the Acoustical Society of America Vol. 135, No. 4_Supplement ( 2014-04-01), p. 2227-2227
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 135, No. 4_Supplement ( 2014-04-01), p. 2227-2227
    Abstract: Multi-talker babble can function as an excellent masker for speech stimuli in perception experiments. It has a higher degree of ecological validity than other maskers (e.g., white noise, speech-shaped noise), as it is a type of noise that many listeners encounter on a regular basis in everyday life. In addition, maskers constructed from speech have, by definition, acoustic properties similar to that of the signal. While multi-talker babble is used extensively in speech perception research, relatively little work has been done on the fine-grained acoustic properties of multi-talker babble. We present analyses of a number of acoustic properties of multi-talker babble generated by randomly combining phonetically balanced utterances (e.g., amplitude modulation depth, amplitude modulation frequencies, spectral properties, and spectro-temporal variability). In order to gain a fuller understanding of the nature of multi-talker babble, we analyze how the acoustic properties of babble vary as a function of the number (2–20), gender, and native language (English vs. Mandarin) of the speakers constituting the babble components. Future extensions of this work will (a) focus on how these acoustic variables affect speech perception, and (b) provide the foundation for a web-based system for generating customized samples of multi-talker babble noise for speech perception researchers.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2014
    detail.hit.zdb_id: 1461063-2
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  • 16
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1995
    In:  The Journal of the Acoustical Society of America Vol. 97, No. 5_Supplement ( 1995-05-01), p. 3418-3418
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 97, No. 5_Supplement ( 1995-05-01), p. 3418-3418
    Abstract: Ohala (1975, 1981) has proposed that sound changes are caused by listeners misperceiving coarticulatory effects. This paper examines variable ‘‘r-dropping’’ in Brooklyn English, and discusses the coarticulatory exigencies that may encourage speakers toward weakened forms. It is argued that production strategies do play a role in driving sound change apart from creating misperceptions. Recordings were made of speakers of Brooklyn and other dialects as part of the development of a larger multidialect database (Hertz et al., 1994). Analyses of nuclear r’s (as in bird, and burl) show that neighboring l’s both lower the second formant and raise the third formant, obscuring the r. Analyses of coda r’s in ‘‘r-ful’’ speakers also show following coronals raise the r’s third formant. Analyses of three Brooklyn speakers show one consistently produces coda r’s, one never does, and a third does so variably as evident in a bimodal distribution of formant patterns. The variable speaker produced r-less tokens particularly in codas which contained coronals, especially l. This pattern suggests that coarticulatory influences affect the application of variable rules. Thus coarticulation seems to exert pressure within a speaker toward a changed form. [Work supported by the NIDCD.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1995
    detail.hit.zdb_id: 1461063-2
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  • 17
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2008
    In:  The Journal of the Acoustical Society of America Vol. 124, No. 4_Supplement ( 2008-10-01), p. 2593-2593
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 124, No. 4_Supplement ( 2008-10-01), p. 2593-2593
    Abstract: This study examines the degree to which achievement of accuracy in distinguishing contrasts in one set of segments tends to correlate with achievement of accuracy in a related set of segments across listeners. Forty Korean listeners identified anterior obstruents as produced by four American English speakers before, after, and between instances of the vowel /a/. Accuracy rates for fricatives and stops, differing in voicing and in point of articulation, correlated across the listeners, indicating that some listeners were better at manner distinctions as a class. Similarly, accuracy in different voicing contrasts also correlated across listeners, though only when consonants were in the same prosodic location. Voicing accuracy did not correlate with manner accuracy, indicating that particular listeners were specifically good at particular featural contrasts. The productions of 20 Korean listeners of the same consonants in the same prosodic locations were identified by 10 American listeners. Even though the same range of accuracies was found for production as perception, accuracy for various segments typically did not correlate across talkers. These results suggest that, while perceptual learning tends to generalize across segments along featural lines, production learning is more specific to particular segments.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2008
    detail.hit.zdb_id: 1461063-2
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  • 18
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2005
    In:  The Journal of the Acoustical Society of America Vol. 118, No. 3 ( 2005-09-01), p. 1661-1676
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 118, No. 3 ( 2005-09-01), p. 1661-1676
    Abstract: Previous research by speech scientists on the acoustic characteristics of American English vowel systems has typically focused on a single regional variety, despite decades of sociolinguistic research demonstrating the extent of regional phonological variation in the United States. In the present study, acoustic measures of duration and first and second formant frequencies were obtained from five repetitions of 11 different vowels produced by 48 talkers representing both genders and six regional varieties of American English. Results revealed consistent variation due to region of origin, particularly with respect to the production of low vowels and high back vowels. The Northern talkers produced shifted low vowels consistent with the Northern Cities Chain Shift, the Southern talkers produced fronted back vowels consistent with the Southern Vowel Shift, and the New England, Midland, and Western talkers produced the low back vowel merger. These findings indicate that the vowel systems of American English are better characterized in terms of the region of origin of the talkers than in terms of a single set of idealized acoustic-phonetic baselines of “General” American English and provide benchmark data for six regional varieties.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2005
    detail.hit.zdb_id: 1461063-2
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  • 19
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1999
    In:  The Journal of the Acoustical Society of America Vol. 106, No. 4_Supplement ( 1999-10-01), p. 2243-2243
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 106, No. 4_Supplement ( 1999-10-01), p. 2243-2243
    Abstract: Speech production studies have shown local temporal stabilities in intergestural timing and in its acoustic consequences [e.g., Kent and Moll, JSHR (1975)], such that the absolute duration of certain speech events is remarkably constant over differences in speech rate. Other production studies examining longer stretches of speech have found event durations to be proportionally constant with respect to a larger frame. Proportional constancy is especially apparent in repetitive production tasks [Cummins and Port, J. Phon. (1998)] . This paper examines how absolute constancy, such as would be specified by segmental contrasts, and proportional constancy interact in a repetitive speech task. Speakers repeated linguistically specified syllables in time to a metronome which specified repetition rate. Rates were varied by a factor of 2.7. Durations of speech events which indicate segmental contrasts, such as voice onset time in onset stops, remain fairly constant over these large changes in speech rate. Other durations, such as vowel durations in open syllables, often show proportional constancy. Vowel durations before coda stops, where duration acts as a secondary cue to consonant voicing, often exhibit linear constancy, suggesting a difference in the degree to which linear linguistic factors restrict how speakers perform a repetitive task.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1999
    detail.hit.zdb_id: 1461063-2
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  • 20
    Online Resource
    Online Resource
    JSTOR ; 2000
    In:  Language Vol. 76, No. 3 ( 2000-09), p. 682-
    In: Language, JSTOR, Vol. 76, No. 3 ( 2000-09), p. 682-
    Type of Medium: Online Resource
    ISSN: 0097-8507
    RVK:
    Language: Unknown
    Publisher: JSTOR
    Publication Date: 2000
    detail.hit.zdb_id: 3311-X
    detail.hit.zdb_id: 2049436-1
    SSG: 7,11
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