The 18th Linux Audio Conference call for participation is being extended for papers, posters and workshops, to the 9th of February 2020. Reminder : The conference will take place May 11-13, 2020, at the SCRIME, part of the University of Bordeaux in France. Up-to-date information is available at the following address : https://lac2020.sciencesconf.org/ Linux Audio Conference is the premier meeting of developers, researchers, and artists developing and using free, libre and open-source audio software, mainly on the GNU/Linux operating system. The conference is part of the Linux Audio consortium. With our best regards, The Linux Audio Conference Team