Well, I have the s/pdif output of my USBDualTubePre microphone preamp plugged into the s/pdif input of my M-Audio 2496, though I have yet to be able to record any sound. I am using Audacity. I have used Audacity successfully in the past to record though the analog inputs of the M-Audio 2496 (to digitize sound from cassettes and vinyl) but Audacity's VU meters just don't register anything from the microphone going to the USBDualTubePre preamp to the M-Audio 2496's s/pdif input. Does anyone have any suggestions? I imagine I need to configure something with one of the mixers, I have available?: alsamixer alsamixergui envy24control (Envy24 Control Utility) xfce4-mixer Thank you for your help. P.S. I am trying to only do a mono recording and so I have my microphone plugged into the right channel of the preamp. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user