The institute
FEMTO's news

You are here

Recognizing liars from the sound of their voice ?

Scientists have prouved that the intensity, speed and pitch of the speaker's voice automatically influences our perception of the reliability and honesty of his or her speech. This work is published in the prestigious journal "Nature Communications"

Faster speech rate, greater intensity in the middle of the word, and falling pitch at the end of the word: that is the prosody1 to adopt if one wants to come across as reliable and honest to one’s listeners. Scientists from the Science and Technology for Music and Sound laboratory (CNRS/Ircam/Sorbonne Université/Ministère de la Culture) have conducted a series of experiments2 to understand how we decide, based on the voice, whether a speaker is honest and confident, or on the contrary dishonest and uncertain. They have also shown that this signature was perceived similarly in a number of languages (French, English, Spanish), and that it is registered “automatically” by the brain: even when participants were not judging the speaker’s certainty or honesty, this characteristic sound impacted how they memorized the words. Prosody consequently conveys information on the truth-value or certainty of a proposition. Scientists are now trying to understand how speakers produce such prosody based on their intentions. This research was published on 8 February in Nature Communications.

Jean-Julien Aucouturier, co-author of this publication, now works at the FEMTO-ST laboratory (CNRS/Université de Bourgogne-Franche Comté/ENSMM/UTBM)

Notes :

1 Prosody refers to the “melody” of a phrase or word: its pitch, rate, and intensity.

2 Scientists used vocal signal processing techniques to create random pronunciations of words (rising pitch, falling pitch, etc.), and then asked multiple groups of participants whether these words were pronounced with certainty or honesty. The software they developed as part of this effort, CLEESE, is open source: https://forum.ircam.fr/projects/detail/cleese/

Bibliographie :

Listeners’ perceptions of the certainty and honesty of a speaker are associated with a common prosodic signature. Louise Goupil, Emmanuel Ponsot, Daniel Richardson, Gabriel Reyes, Jean-Julien Aucouturier. Nature communications, le 8 février 2021.
DOI : 10.1038/s41467-020-20649-4

 Contact :

FEMTO-ST :  Jean-Julien Aucouturier

 

 

  • Rodolphe Boudot receives the 2020 EFTF Young Scientist Award

    The IEEE EFTF-IFCS 2021 is a joint conference of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium. The 2021 joint conference, originally planned for Paris in April, has been converted to a virtual conference from 7th to 17th July, 2021

    Read more
  • Giacomo Clementi, grand prize i-PhD

    For his work on Lithium Niobate (LiNbO3), which has led to the design of original and efficient devices for the recovery of vibratory energy by the piezoelectric effect, in particular for connected objects.

    Read more
  • Understanding energy transfers during photosynthesis

    Using three pigments manipulated by scanning tunneling microscopy, researchers from IPCMS and FEMTO-ST are studying energy transfers between molecules to gain a finer understanding of the photosynthesis mechanism in plants. This work is published in Nature Chemistry.

    Read more
  • International Day of Light on May 16th

    This year, the Student Chapter of FEMTO-ST organizes on this occasion a photo contest on the theme ′′ Light phenomena in everyday life ".

    Read more
  • AMAROB labelled Deep Tech company

    Spin off of FEMTO-ST, Amarob technologie has received the Deep Tech company label awarded by Bpifrance.

    Read more
  • New platform to support the design and optimization of fuel cell hybride system and battery

    Virtual FCS" is the first freely accessible online simulation platform to support fuel cell manufacturers and users.

     Supported by a European funding, "Virtual FCS" has for French partner the University of Bourgogne-Franche-Comté through the FEMTO-ST institute and the FC-LAB

    Read more
  • ThermoBot : micro robots that walk on water

    Imagine, a robot, the size of a fly, walking on the surface of the water and pursued by a laser beam. One could believe in a science fiction scenario...

    Read more
  • European project for the development of sustainable and high-performance bio-based composites

    Led by FEMTO-ST and supported by the University of Franche-Comté, the « SSUCHY » R&D project which brings together 17 European partners is entering its final phase. The project is now quite advanced.

    Read more
  • Understanding the cytotoxicity of metallic nanoparticles

    A recent study published in the journal "Chemical Science" and involving FEMTO-ST gives new insights into the understanding of the mechanisms of DNA alteration in cells by metallic nanoparticles.

    Read more
  • Artificial intelligence for next-generation ultrafast photonics

    How can machine learning and associated methods improve the development of next-generation laser sources and revolutionize applications where ultrafast light plays a central role?

    Read more

Pages