I've been trying this too (with no luck,) when I try 'arecord -f cd -d hw:0,1 | aplay,' in the terminal, it says 'ALSA lib pcm_dmix.c:947:(snd_pcm_dmix_open) the dmix supports only playback stream arecord: main:608: audio open error: invalid argument aplay: playback:2297: read error'