Hey Jeanette, The ffmpeg mailing list is probably the best place to ask if you don't get an answer here. For their generous help, they request that you include the uncut console output and to bottom-post when replying. ffmpeg-user@xxxxxxxxxx https://ffmpeg.org/mailman/listinfo/ffmpeg-user ffmpeg-user-request@xxxxxxxxxx with subject "unsubscribe". Joel -- Joel Roth _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user