ACQUISITION OF WORD STRESS IN GERMAN: VOWEL DURATION AND INCOMPLETENESS OF CLOSURE

摘要: This paper presents the results of a study concerning acoustic correlates contrastive word stress in bisyllabic and trisyllabic German words, produced by four children aged 2;3 to 7;3 their mothers. We found that age are cer- tainly able produce vowel duration is most reliable correlate target independent position within word. Furthermore, we voice quality parameter incomplete- ness closure uniformly used mothers mark while on differ- ent acquisition stages for this parameter. Research area prosody perception production has received more at- tention, both adult child language. Infants not only have be sensitive native lan- guage's sound organization, its phonotactic struc- ture, structure order segment words fluent speech (11), but they also rely prosodic characteristics language infer syntactic properties (3). By 9 months age, infants show selective preference pat- terns (4). Many per- ception studies store specific in- formation about voices which exposed to. using input from surround- ings, especially parents, establish expectations typical patterns variations utterances ambient They obtain sufficient exemplar variance develop generalizations distribution values auditory dimensions phonetic space (2). The relationship cues hierarchical into- national representation must learned each dividual (6). In study, analyzed spontaneous productions performed special playing task. use artificially constructed names animal toys geared phoneme sequences guarantee these comes therefore ana- lyzed both, children, compared obtained with re- spect parameters. pro- ductions were recorded during several sessions over course at least one year. Our hypothesis adopt features parents indicate stress, probably start saliently presented can find. Parameters need closer analysis sample will noticed later then stress. 2. METHOD