Dear MARMAM reader, The OSmOSE team (https://osmose.ifremer.fr/) is excited to announce that we will be hosting a workshop at the next European Cetacean Society in Dundee on Monday the 20th of April (full day): 20F2: A comprehensive open-source workflow to facilitate Passive acoustic monitoring studies. The aim of the workshop is to present and provide hands-on experience of our comprehensive open-source workflow, designed to facilitate passive acoustic monitoring studies. More specifically, this workflow will guide you through the process of transforming raw acoustic data into a suitable format, either for automated algorithm or direct ecological analysis. The workshop will begin with the processing of raw audio data with the OSEkit Python package (https://github.com/Project-OSmOSE/OSEkit). This will create a dataset structure including spectrograms and audio that are compatible with our APLOSE annotation platform (https://osmose.ifremer.fr/app/) During the second part of the workshop, participants will learn to use APLOSE to create collaborative annotation campaigns and annotate their datasets. If time permits, we will use our post-processing package to further process the annotations into interpretable figures. Participants will need to bring their own laptop and are also welcome to bring their own acoustic data which will enable them to test the workflow more efficiently. This workshop is open to both beginner and experienced acousticians. Before the workshop, participants will receive a step-by-step tutorial on how to set up their Python code editor and environment. We can also help you with that before the workshop, feel free to reach out! See you in Dundee! Maëlle Torterotot, On behalf of all workshop organisers Elodie Morin (ENSTA IPP and Lab STICC UMR CNRS 6285), Gauthier Berthomieu (ENSTA IPP and Lab STICC UMR CNRS 6285), Mathieu Dupont (ENSTA IPP and Lab STICC UMR CNRS 6285), Maëlle Torterotot (ENSTA IPP and Lab STICC UMR CNRS 6285) ________________ Maëlle Torterotot Research engineer in underwater bioacoustics 02.98.34.89.65 ENSTA | Institut Polytechnique de Paris Campus de Brest - 2 rue François Verny, 29806 Brest Cedex 9 - France Lab-STICC - UMR CNRS 6285