Publications
CONFERENCE (INTERNATIONAL) CALLS: Japanese Empathetic Dialogue Speech Corpus of Complaint Handling and Attentive Listening in Customer Center
Yuki Saito (The University of Tokyo), Eiji Iimori (The University of Tokyo), Shinnosuke Takamichi (The University of Tokyo), Kentaro Tachibana, Hiroshi Saruwatari (The University of Tokyo)
The 24th Annual Conference of the International Speech Communication Association (INTERSPEECH 2023)
August 20, 2023
We present CALLS, a Japanese speech corpus that considers phone calls in a customer center as a new domain of empathetic spoken dialogue. The existing STUDIES corpus covers only empathetic dialogue between a teacher and student in a school. To extend the application range of empathetic dialogue speech synthesis (EDSS), we designed our corpus to include the same female speaker as the STUDIES teacher, acting as an operator in simulated phone calls. We describe a corpus construction methodology and analyze the recorded speech. We also conduct EDSS experiments using the CALLS and STUDIES corpora to investigate the effect of domain differences. The results show that mixing the two corpora during training causes biased improvements in the quality of synthetic speech due to the different degrees of expressiveness. Our project page of the corpus is this http URL.
Paper :
CALLS: Japanese Empathetic Dialogue Speech Corpus of Complaint Handling and Attentive Listening in Customer Center
(external link)