Photoacoustic spectroscopy: basics, sensing developments and applications on breath analysis

In this talk, we will present photoacoustic spectroscopy, its basics and advantages. This technique can be used on gas sensing developments, and the applications are numerous and varied. Here, we will focus on the measurement of atmospheric pollutants and their impact on health. This impact can be assessed through the analysis of exhaled air, using specific biomarkers. We will show that breath analysis can also be a key detection technique in medical diagnosis. This work is being carried out in collaboration between Montpellier University and Montpellier University Hospital.

Bio: Dr. Aurore VICET is a professor in Montpellier University, France, in charge of spectroscopic developments based on tunable lasers: study and characterization of single frequency semiconductor lasers for spectroscopic applications, study and development of laser systems based on photoacoustic techniques in the infra-red, Laser/LED Quartz Enhanced Photoacoustic Spectroscopy, Si-based oscillators and MEMS.The applications fields of her research are pollutants evaluation in environment and medical diagnosis.

Emerging topics in audio signal processing: ecoacoustics, urban acoustics, industrial acoustics, medical acoustics

Ethology, ecology, urban geography, industrial engineering, and biomedical engineering are all disciplines that value sound as information. Long limited to speech and music signals alone, audio signal processing is finding compelling applications for instrumentation in these disciplines. In turn, it is fueled by new challenges in fundamental research. This is evidenced, among other things, by increasingly autonomous and adaptive in situ acoustic sensors; a revival of statistical and geometric methods for time-frequency; and the invention of analysis and synthesis techniques based on unsupervised or minimally supervised learning.

It is in this context that we intend to provide a progress report on work on sounds other than speech and music. These « emerging topics » include, but are not limited to, ecoacoustics, urban acoustics, industrial acoustics, and medical acoustics. The invited speakers will provide an overview of the main issues inherent in these fields while striving to be accessible to the IASIS community as a whole. Furthermore, the call for talks and posters will allow for more specific areas of ongoing research to be addressed.

From the same archive

Introduction de la journée « Domaines émergents en traitement du signal audionumérique » - Thomas Hélie, Mathieu Lagrange

Characterizing urban sound environments - Catherine Lavandier

Digital signal processing and audio synthesis for sound design - Nicolas Misdariis

Understanding and Modeling Ecosystem Structure and Function through the lens of Ecoacoustics - Camille Desjonquères

Introduction à la journée d'études du GdR IASIS dédiée à la synthèse audio - Thomas Hélie, Mathieu Lagrange

Audio Language Models - Neil Zeghidour

Poster sessions - Clara Boukhemia, Samir Sadok, Amandine Brunetto, Haoran Sun, Vincent Lostanlen, Morgane Buisson, Xiran Zhang, Reyhaneh Abbasi, Ainė Drėlingytė, Étienne Paul André, Yuexuan Kong, Étienne Bost, Axel Marmoret, Javier Nistal, Hugo Pauget Ballesteros

AI in 64Kbps: Lightweight neural audio synthesis for embedded instruments - Philippe Esling

Music sound synthesis using machine learning - Fanny Roche

Grey-box modelling informed by physics: Application to commercial digital audio effects - Judy Najnudel

Hybrid deep learning for music analysis and synthesis - Gaël Richard

Invariance learning for a music indexing robust to sound modifications - Rémi Mignot

Basic Pitch: A lightweight model for multi-pitch, note and pitch bend estimations in polyphonic music - Rachel Bittner

GDR ISIS, Méthodes et modèles en traitement de signal, Introduction

Labeling a Large Music Catalog - Romain Hennequin

Photoacoustic spectroscopy: basics, sensing developments and applications on breath analysis

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Réunion du Groupement de Recherche "Information, Apprentissage, Signal, Image et ViSion" : Domaines émergents en traitement du signal audionumérique : éco-acoustique, environnements urbains, industriels et médicaux

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