Usb Audio Interface Garageband A guitar pickup is basically much like a dynamic microphone coil. For decades, active microphones have now been sent with the style coil attached with the principal of the microphone's transformer, and maybe not introduced to ground (‘floating'). The microphone's situation is typically attached to the cable guard, which is connected to the microphone amplifier's floor (see Rane's internet site for more discussion).
By and big, powerful microphones are very calm products as a result of the combination of transformer isolation and balanced, flying sign lines all through, in addition to guarded, humbucking coils.
Therefore why not instruments? Instruments are once plagued by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious alternative would be to move your guitar collection to a balanced result, being a microphone. The same strategy was printed this 2001 patent request like this Usb Audio Interface Garageband?