Published on in Vol 5, No 12 (2021): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/30053, first published
.
1 Speech and Interactive Signal Lab, Department of Engineering and Computer Science, Università degli Studi di Trento, Trento, Italy
2 IDEGO srl, Rome, Italy
*these authors contributed equally