Acoustic Guitar Backing Tracks A guitar collection is basically similar to an energetic mike coil. For many years, dynamic microphones have now been wired with the voice coil mounted on the primary of the microphone's transformer, and maybe not introduced to ground (‘floating'). The microphone's situation is normally connected to the wire guard, which will be attached to the microphone amplifier's soil (see Rane's internet site for more discussion).
By and large, powerful microphones are very quiet devices consequently of the mix of transformer isolation and healthy, hanging sign lines during, along with guarded, humbucking coils.
So why not guitars? Guitars are notoriously affected by noise. Humbucking pickups are merely a partial (though crucial!) solution. Well-known solution would be to float your guitar collection to a balanced output, just like a microphone. An identical idea was published this 2001 patent software like this Acoustic Guitar Backing Tracks?