Antares Auto Tune Live A guitar pickup is basically just like an energetic microphone coil. For many years, dynamic microphones have now been sent with the style coil attached with the principal of the microphone's transformer, and maybe not introduced to soil (‘floating'). The microphone's case is typically linked to the wire shield, which is attached to the mike amplifier's soil (see Rane's web site for more discussion).
By and large, energetic microphones are very quiet units as a result of the combination of transformer isolation and balanced, suspended indication lines throughout, as well as guarded, humbucking coils.
So why don't you instruments? Instruments are notoriously affected by noise. Humbucking pickups are merely a partial (though essential!) solution. The obvious alternative would be to move practicing the guitar collection to a balanced result, just like a microphone. The same thought was published this 2001 patent request like this Antares Auto Tune Live?