For anyone who's ever had to correctly set up and align a phono cartridge (trust me, you don't want to if you can help it!), I've done a small webpage explaining how to check crosstalk figures (related to headshell azimuth) and stereo channel balance using a soundcard and audio software. Maybe it's obvious already (not sure), but thought maybe this could help someone.

Note, this website is NOT a permanent address, and will be changing in just a few days, when Attbi becomes Comcast! You might want to grab the page to store locally, if you find it useful. I'll probably be keeping it but moving it to another server soon.

http://home.attbi.com/~shs82web/crosstalk/.../crosstalk.html