USB what does it do Help

Can anyone tell me how to use the USB and what it does or doesn’t do I am trying to use it with my Sonar recording software and can’t figure out how…Can anyone help me out. Thanks in advance

The usb is just to manage your sdcard without unplug your Sd card and to update the firmware!
You can not record with the usb of the BB

The audio signal only comes out of the headphone jack or the L/R output jacks.

Ok that works on of the jack into my sound card doh what was I thinking