alsa configs to use mixxx with Native Instruments Audio4DJ USB interface 2 ouputs, vinyl control
fist put the .asoundrc to your home folder
mv .asoundrc ~
this will create alsa audio devices called:
outDJA channels 1-2
outDJB channels 1-2
when you are using external mixer there's no master output so leave it empty
set DJA and DJB channels for deck 1 and deck 2 outputs
for vinyl control you set the same:
outDJA channels 1-2
outDJB channels 1-2
note: inputs should be called inDJA and inDJB but they might not be visible in mixxx, but they seem to work just fine.
first run this:
export PA_ALSA_PLUGHW=1
this should create the audio devices for you.
if you are using pulseaudio you need to disable it
pulseaudio --kill
or you can try
pasuspender mixxx
edit /etc/pulse/client.conf
and set autospawn = no
haven't tested this yet...