Good morning Julien :) I connected my Sony DAT recorder by an optical cable to one of my Envy24 cards. Mudita24 has got a tab called "Hardware Settings" with an option named "Master Clock". "Master Clock" has to be set to "S/PDIF In". I don't see this option for alsamixer. Your S/PDIFs are routed correctly, you don't need to reboot or to start jack. S/PDIF input does show incoming audio signal here, after switching to "S/PDIF In" for "Master Clock". Google is ready to search for "envy24 alsamixer master clock" ;). Regards, Ralf _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user