We rarely stop to think about how we make sense of the sounds around us — how we find voices in a noisy room, or why two people can hear completely different things in the same audio clip. Today’s guest explores the hidden mechanisms behind these experiences: how the brain turns raw sound into meaning, how we learn the regularities of the soundscape around us, and why people sometimes hear the world so differently. Today’s guest is the person to answer these questions, or at least some of them…

Daniel Pressnitzer. Originally trained in engineering, he went on to complete a Master's degree in acoustics, signal processing, and computer science in Paris. He earned his PhD at Ircam, where he studied auditory perception, focusing on musical consonance and dissonance. He then spent several years in the UK conducting postdoctoral research at the Centre for the Neural Basis of Hearing in Cambridge. In 2000, he returned to France to join the CNRS as a researcher. Now a Director of Research at CNRS, he is also a founding member and the current head of the Audition team at the École normale supérieure. His research bridges acoustics, perception, and cognition, using carefully crafted illusions and experiments to probe the mid-level processes of hearing — the ones that shape how we interpret the world without us even realizing it. His lab has also developed various tools to probe the functioning of the auditory system.

Credits:

Interview: Cindy Zhang & Marius Mercier

Editing: Jay Richardson

Communication: Tanay Katiyar

Music: Thelma Samuel and Robin Baradel

Artwork: Ella Bergru