I borrowed my friends microphone to record, its an m-audio soundcheck (dynamic) and im using it through my lexicon alpha usb interface. when i try to record anything, i can hear my recording but its drowned out by a pretty loud high pitched hissing sound. any help please?
Epiphone Les Paul Special II
Ibanez Rg350m YE
Roland Cube 80X
Squier Acoustic << AWESOME
either your mic is busted, or you are recieving feedback (product of holding a live microphone to its corresponding amp)

Maybe buy a noise gate? muahahah