TY  - CONF
A1  - Kudera, Jacek
A1  - Zahner-Ritter, Katharina
A1  - Engel, Jakob
A1  - Elsässer, Nathalie
A1  - Hutmacher, Philipp
A1  - Worstbrock, Carolin
T1  - Speech Enhancement Patterns in Human-Robot Interaction
N2  - This paper presents the results of the human-robot interaction (HRI) study with German native speakers addressing the robot in their L1 and in L2 English. The aim of the experiment is to test the strategies of providing clarifications when talking to the voice assistant in a task involving teaching complex vocabulary. The analyses is based on spectral (F1, F2, and mean F0) and temporal (vowel length) features excerpted from the target words. With reference to a theoretical framework of hyperarticulation and hypoarticulation, these acoustic measures were compared across the iterations of the target words (first vs. second iteration). Results showed that participants, when asked for clarification by an inanimate interlocutor, do not hyperarticulate, but try to preserve the surface representation of target words across the iterations. These findings suggest that acoustic characteristics of clarifications directed to voice assistants differ from the ones directed to human interlocutors.
T3  - Trier Center for Language and Communication - 2023 
KW  - Human-robot interaction
KW  - multilingual communication
KW  - clarifications
Y1  - 2023
UR  - https://ubt.opus.hbz-nrw.de/frontdoor/index/index/docId/2066
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:385-1-20664
SP  - 4783
EP  - 4787
PB  - ISCA
ER  -