Make Creative Audigy default soundcard and start in analog mode

1) Set Audigy as the default soundcard

sudo asoundconf set-default-card Audigy

2) Control #211 switches between analog and digital mode. Found 211 using

amixer -c Audigy controls | grep Digital

3) Create switch-audigy-to-analog.sh and add to startup programs.

# Switch Audigy to analog out
amixer -c Audigy cset numid=211 off