Mark, you can also use Nama for trimming files. Like Willem's dae, Nama uses ecasound for the heavy lifting. And older but usable version of Nama can be found in official packages for Ubuntu/Debian/Devuan distributions. Here are the Nama commands to remove the first ten seconds of raw.mp3, and generate a file lecture-2016-4-1.mp3: nama -t create lecture-2016-4-1 add-track lecture import raw.mp3 set-region 10 END mixdown start quit Have a nice day! Joel Roth -- _______________________________________________ Blinux-list mailing list Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list