摘要:

The multifunctionality of vowel and closure duration is investigated in two experiments using the word pair ‘bag’-’back’. In experiment I, categorization of synthetic stimuli at three simulated rates of speech supports the notion of the vowel/vowel + closure quotient as a tempo-independent cue to the final ‘voiced’- ‘voiceless’ opposition. In experiment II, manipulated natural stimuli are tested at two rates of speech, sentence-medially and finally. In final position, the results of experiment I are confirmed though durational and nondurational properties interact. Medially, a specific context

ISSN:0031-8388    

DOI:10.1159/000259973

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

EMG studies of the American English vowel pairs /i-ι/ and /e-ε”/ reveal two different production strategies: some speakers appear to differentiate the members of each pair primarily on the basis to tongue height; for others the basis of differentiation appears to be tongue tension. There was no obvious reflection of these differences in the speech waveforms or formant patterns of the two groups. To determine if these differences in production might correspond to differences in perception, two vowel identification tests were given to the EMG subjects. Subjects were asked to label the members of a seven-step vowel continuum, /i/ through /ι/. In one condition each item had an equal probability of occurrence. The other condition was an anchoring test; the first stimulus, /i/, was heard four times as often as any other stimulus. Compared with the equal-probability test labelling boundary, the boundary in the anchoring test was displaced toward the more frequently occurring stimulus. The magnitude of the shift of the labelling boundary was greater for subjects using a production strategy based on tongue height than for subjects using tongue tension to differentiate these vowels, suggesting that the stimuli represent adjacent categories in the speakers’ phonetic space for the former, but not for the latter,

ISSN:0031-8388    

DOI:10.1159/000259974

出版商:S. Karger AG    

年代:1979

数据来源: Karger

摘要:

Using a photoelectric device, velar movement of 6 subjects is continuously registered in test words containing /p, t, k, b, d, g/. There are differences in both timing and degree of velar movement patterns as a function of voicing, place of articulation, vocalic context, and mode of release. There is extensive coarticulation in both directions. A hierarchical relationship for the realization of velar height targets for vowels and consonants is found, leading to the supposition that there are two different kinds of coarticulation on the neuromotor level.

ISSN:0031-8388    

DOI:10.1159/000259975

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0031-8388    

DOI:10.1159/000259976

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0031-8388    

DOI:10.1159/000259977

出版商:S. Karger AG    

年代:1979

数据来源: Karger

ISSN:0031-8388    

DOI:10.1159/000259972

出版商:S. Karger AG    

年代:1979

数据来源: Karger