Stealing a line from the output of ac3dec, I came up with this: -ao alsa:pcm=default#ac3=iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2# this gives me AC3 passthrough, but Im open to suggestions on how to make this easier or why it works like this :) Thanks! Dave wrote: > I tried with option > > -ao alsa:pcm=default#ac3=iec958# > -ao alsa:pcm=default#ac3=spdif# > > Still get the error > ac3play: Unable to update the IEC958 control: No such file or directory > > > > > Nicolas Huillard wrote: > >> Dave a ?crit : >> >> >>> softdevice cvs >>> >>> vdr 1.3.34 >>> kernel 2.6.14-rc3 using kernel ALSA drivers >>> >>> I have got softdevice working with sound via SPDIF for PCM, but cant >>> get >>> AC3 to pass through to the decoder, mplayer and ac3dec both pass AC3 no >>> problem, but with softdevice I get error: >>> >>> ac3play: Unable to update the IEC958 control: No such file or directory >>> >>> -P"softdevice -vo dfb: -ao alsa:pcm=default#ac3=hw:0,0#" >>> -P"softdevice -vo dfb: -ao alsa:pcm=default#ac3=hw:0,1#" >>> -P"softdevice -vo dfb: -ao alsa:pcm=default#ac3=plug:iec958#" >>> >> >> >> I use : >> -ao alsa:pcm=default#ac3=spdif# >> >> I think you're not that off : just remove "plug:" from the last one, to >> get "ac3=iec958" >> >> >> > > _______________________________________________ > vdr mailing list > vdr@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr >