For those interested in audio/signal analyzing here Baudline download for jack.
I had the problem with the regular Baudline that I couldnt connect it to jack in osx but some genius made a .dmg for osx users so they can use it with osx,ardour,mixbus and whatever you connect through jackpilot.
check it and enjoy and if you meet this person give him a big hug from me:
http://www.google.com/url?sa=D&q=http://www.baudline.com/baudline_jack_1.08_macosx_universal.dmg