TY  - BOOK
AB  - Previous research identified a differential contribution of information
structure and the visibility of facial and contextual information
to the acoustic-prosodic expression of pitch accents.
However, it is unclear whether pitch accent shapes are affected
by these conditions as well. To investigate whether varying
context cues have a differentiated impact on pitch accent trajectories
produced in conversational interaction, we modified
the visibility conditions in a spontaneous dyadic interaction
task, i.e. a verbalized version of TicTacToe. Besides varying
visibility, the game task allows for measuring the impact of
information-structure on pitch accent trajectories, differentiating
important and unpredictable game moves. Using GAMMs
on four speaker groups (identified by a cluster analysis), we
could isolate varying strategies of prosodic adaptation to contextual
change. While few speaker groups showed a reaction to
the availability of visible context cues (facial prosody or executed
game moves), all groups differentiated the verbalization
of unpredictable and predictable game moves with a groupspecific
trajectory adaptation. The importance of game moves
resulted in differentiated adaptations in two out of four speaker
groups. The detected strategic trajectory adaptations were characterized
by different characteristics of boundary tones, adaptations
of the global f0-level, or the shape of the corresponding
pitch accent.
DA  - 2019
KW  - dialogue
KW  - prosody
KW  - pitch accents
KW  - visibility
LA  - eng
PY  - 2019
TI  - Pitch Accent Trajectories across Different Conditions of Visibility and Information Structure - Evidence from Spontaneous Dyadic Interaction
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-29363695
Y2  - 2024-11-22T00:20:30
ER  -