On Wed, Feb 2, 2011 at 3:59 AM, Robin Paulson <robin.paulson@gmail.com> wrote:

2011/1/31 Renato Budinich <rennabh@gmail.com>:

> do these exist? Aren't the strings too close to each other to not
> influence each other's coils?
>
> As far as I can remember also, there's no way of isolating magnetic
> field.

i would imagine that as you know the output for the pickup for each
string, you can use it do do 'noise'-cancellation on the outputs for
the other strings. the same principle as noise-cancellation headphones
use

sorry, i haven't explained that very well, but can't think of better
words - ask if you want it explaining more

yes, I understand. Actually this guy, that is doing his own hexaphonic pickups and is doing what you say in software, says that it doesn't change very much (very last paragraph):

http://www.carmi.se/misterstarshine/Projects/5/index.htm

renato