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DAVID: An open-source platform for real-time transformation of infra-segmental emotional cues in running speech

Rachman, L; Liuni, M; Arias, P; Lind, A; Johansson, P; Hall, L; Richardson, D; ... Aucouturier, J-J; + view all (2018) DAVID: An open-source platform for real-time transformation of infra-segmental emotional cues in running speech. Behavior Research Methods , 50 (1) pp. 323-343. 10.3758/s13428-017-0873-y. Green open access

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Abstract

We present an open-source software platform that transforms emotional cues expressed by speech signals using audio effects like pitch shifting, inflection, vibrato, and filtering. The emotional transformations can be applied to any audio file, but can also run in real time, using live input from a microphone, with less than 20-ms latency. We anticipate that this tool will be useful for the study of emotions in psychology and neuroscience, because it enables a high level of control over the acoustical and emotional content of experimental stimuli in a variety of laboratory situations, including real-time social situations. We present here results of a series of validation experiments aiming to position the tool against several methodological requirements: that transformed emotions be recognized at above-chance levels, valid in several languages (French, English, Swedish, and Japanese) and with a naturalness comparable to natural speech.

Type: Article
Title: DAVID: An open-source platform for real-time transformation of infra-segmental emotional cues in running speech
Open access status: An open access version is available from UCL Discovery
DOI: 10.3758/s13428-017-0873-y
Publisher version: http://dx.doi.org/10.3758/s13428-017-0873-y
Language: English
Additional information: Copyright © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Keywords: Emotional transformations, Nonverbal behavior, Voice, Real-time, Software, Infra-segmental cues
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/1547684
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