| 61. |
- Ambrazaitis, Gilbert, et al.
(författare)
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Acoustic features of multimodal prominences : Do visual beat gestures affect verbal pitch accent realization?
- 2017
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Ingår i: Proceedings of The 14th International Conference on Auditory-Visual Speech Processing (AVSP2017). - Stockholm : International Speech Communication Association. - 2308-975X.
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Konferensbidrag (refereegranskat)abstract
- The interplay of verbal and visual prominence cues has attracted recent attention, but previous findings are inconclusive as to whether and how the two modalities are integrated in the production and perception of prominence. In particular, we do not know whether the phonetic realization of pitch accents is influenced by co-speech beat gestures, and previous findings seem to generate different predictions. In this study, we investigate acoustic properties ofprominent words as a function of visual beat gestures in a corpus of read news from Swedish television. The corpus was annotated for head and eyebrow beats as well as sentence-level pitch accents. Four types of prominence cues occurredparticularly frequently in the corpus: (1) pitch accent only, (2) pitch accent plus head, (3) pitch accent plus head plus eyebrows, and (4) head only. The results show that (4) differs from (1-3) in terms of a smaller pitch excursion and shorter syllable duration. They also reveal significantly larger pitch excursions in (2) than in (1), suggesting that the realization of a pitch accent is to some extent influenced by the presence of visual prominence cues. Results are discussed in terms of the interaction between beat gestures and prosody with a potential functional difference between head and eyebrow beats.
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| 62. |
- Ambrazaitis, Gilbert, 1979-, et al.
(författare)
-
Auditory vs. audiovisual prominence ratings of speech involving spontaneously produced head movements
- 2022
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Ingår i: Proceedings of the 11th International Conference on Speech Prosody : Speech Prosody 2022 - Speech Prosody 2022. - : International Speech Communication Association. - 2333-2042. ; , s. 352-356, s. 352-356
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Konferensbidrag (refereegranskat)abstract
- Visual information can be integrated in prominence perception, but most available evidence stems from controlled experimental settings, often involving synthetic stimuli. The present study provides evidence from spontaneously produced head gestures that occurred in Swedish television news readings. Sixteen short clips (containing 218 words in total) were rated for word prominence by 85 adult volunteers in a between-subjects design (44 in an audio-visual vs. 41 in an audio-only condition) using a web-based rating task. As an initial test of overall rating behavior, average prominence across all 218 words was compared between the two conditions, revealing no significant difference. In a second step, we compared normalized prominence ratings between the two conditions for all 218 words individually. These results displayed significant (or near significant, p
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| 63. |
- Ambrazaitis, Gilbert
(författare)
-
Between Fall and Fall-Rise : Substance-Function Relations in German Phrase-Final Intonation Contours
- 2005
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Ingår i: Phonetica. - Basel : Walter de Gruyter GmbH. - 1423-0321 .- 0031-8388. ; 62:2-4, s. 196-214
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Tidskriftsartikel (refereegranskat)abstract
- This study investigates an intonation contour of German whose status has not been established yet: a globally falling contour with a slight rise at the very end of the phrase (FSR). The contour may be said to lie on a phonetic continuum between falling (F) and falling-rising (FR) contours. It is hypothesized that F, FR and FSR differ with respect to their communicative functions: F is terminal, FR is non-terminal, and FSR is pseudo-terminal, respectively. The hypotheses were tested in two steps. First, measurements in a labelled corpus of spontaneous speech provided the necessary background information on the phonetics of the contours. In the second step, the general hypothesis was approached in a perceptual experiment using the paradigm of a semantic differential: 49 listeners judged 17 systematically generated stimuli on nine semantic scales, such as ‘impolite/polite’. The hypotheses were generally confirmed. Both F and FSR were associated with a conclusive statement, while FR was more likely to be judged as marking a question. FSR differs from F in that it does not express features such as categoricalness, dominance or impoliteness. The results are interpreted as an instance of the frequency code: the addition of a slight rise means avoidance of extremely low F0; the functional consequence is a reduction of communicated dominance.
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| 64. |
- Ambrazaitis, Gilbert, et al.
(författare)
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Dip and hat pattern: a phonological contrast of German?
- 2008
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Ingår i: Speech Prosody 2008, Fourth International Conference. - Campinas : The International Speech Communication Association (ISCA). ; , s. 269-272
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Konferensbidrag (refereegranskat)abstract
- Is the high plateau in a ‘hat pattern’ a phonetic artefact, or does it reflect a phonological feature? Can it contrast with a low plateau, i.e., a ‘dip pattern’? The presented perception experiment supports the phonological point of view, since it shows that the dip/hat contrast can disambiguate German oder-constructions, which are interpretable as ‘alternative’ or ‘yes/no-questions’. This specific function may be derived from a more general substance–function relation: While a hat pattern has a ‘bracketing function’, a dip signals detachment.
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| 65. |
- Ambrazaitis, Gilbert, et al.
(författare)
-
Expressing ‘confirmation’ in Swedish: the interplay of word and utterance prosody
- 2007
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Ingår i: Proceedings of the 16th International Congress of Phonetic Sciences. - Saarbrücken : Saarland University. - 9783981153507 - 9783981153514 ; , s. 1093-1096
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Konferensbidrag (refereegranskat)abstract
- An exploratory study on the prosodic signaling of ‘confirmation’ in Swedish is presented. Pairs of subjects read short dialogs, constructed around selected target words, in a conversational style. A falling utterance intonation was found on the target word, and the signaling of word prosody (lexical pitch accent) appeared to be, to a certain degree, optional.
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| 66. |
- Ambrazaitis, Gilbert, et al.
(författare)
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F0 Peak Timing, Height, and Shape as Independent Features
- 2014
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Ingår i: Proc. of The 4th International Symposium on Tonal Aspects of Languages, Nijmegen, The Netherlands. - Nijmegen : The International Speech Communication Association (ISCA). ; , s. 138-142, s. 138-142
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Konferensbidrag (refereegranskat)abstract
- A considerable amount of evidence from several intonation languages (e.g., German, English, Italian) supports the idea that F0 peak timing, height, and shape variables form a feature bundle, which is used to encode two-fold intonational (e.g., sentence-level) pitch accent distinctions such as L+H* vs. L*+H. The three types of features in the bundle can be weighted differently but the outcome seems to be functionally equivalent. In this sense, they are ‘substitute phonetic features’. This paper presents data from two distinct prosodic dialect types of Swedish, a pitch-accent language, suggesting that these F0 variables can also be used independently of each other in order to encode two different contrasts (i.e., a three-fold contrast), each of which phonetically and functionally related to the L+H* vs. L*+H distinction in an intonation language. For Central Swedish, we observe two peak raising strategies which go along with differently shaped rises: ‘extending’ (= faster rise) and ‘shifting’ (= slower rise), which tend to be used to signal ‘speaker-related’ emphasis (e.g., ‘surprise’) or ‘messagerelated’ emphasis (e.g., ‘correction’), respectively. For Southern Swedish, we observe an ‘extended’ peak and an ‘extended and delayed’ peak.
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| 67. |
- Ambrazaitis, Gilbert, 1979-, et al.
(författare)
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Focal F0 peak shape and sentence mode in Swedish
- 2015
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Ingår i: Proceedings of the 18th International Congress of Phonetic Sciences. - Glasgow : University of Glasgow. - 9780852619414 - 9780852619421
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Konferensbidrag (refereegranskat)abstract
- Shape characteristics of rising-falling accentual F0 peaks of Stockholm Swedish Accent I words in narrow focus are studied in a corpus of 287 read sentences. The corpus includes statements and three types of polar questions. Results reveal a clear effect of sentence mode on the shape of the accentual rises: Statements are predominantly characterized by convex rises, questions by concave rises.
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| 68. |
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| 69. |
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| 70. |
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