 |
14th International Congress of Phonetic Sciences (ICPhS-14)San Francisco, CA, USA |
 |
|
14th International Congress of Phonetic Sciences (ICPhS-14)San Francisco, CA, USA |
|
In this study we investigate three properties of the left vowel context speech recognizer (CSR) in forced recognition mode was used. The which we hypothesize to underlie deletion of /r/ in postvocalic, CSR had the task to decide whether /r/-deletion was applied or not in preconsonantal position in Dutch spontaneous speech: vowel type a word. (schwa, full vowel), vowel length (long, short) and lexical stress (+,-). The accuracy of forced recognition in selecting the correct For each of five categories 90 instances with possible /r/-realizations variant was checked in an experiment [6] in which the CSR's were extracted from a large speech database containing man-machine responses were compared with those of nine expert listeners who dialogues in an automatic train-table inquiry system. The frequency of carried out the same task. For /r/-deletion the CSR turned out to select /r/-deletions in these 450 cases was investigated on the basis of variant the correct pronunciation variant in 75.6% of the cases, while for the selection by a CSR and human transcriptions of the same material. listeners this percentage varied between 74% and 93%. This indicated Loglinear analyses revealed that /r/-deletion was significantly more that there was a good correspondence between recognizer response frequent after schwa than after full vowels, and that vowel length and and human ratings for /r/-deletion. lexical stress were not significant. This appeared from both CSR data The results of forced recognition showed that in a corpus and human transcriptions. The only discrepancy between the two sets containing 214,102 words in which /r/-deletion could be applied of results concerns the absolute frequencies of /r/-deletion. Possible 16,865 times, it was actually applied in 47.6% of the cases. Moreover, explanations are discussed.
Bibliographic reference. Cucchiarini, Catia / Heuvel, Henk van den (1999): "Postvocalic /r/-deletion in Dutch: more experimental evidence", In ICPhS-14, 1673-1676.