Frequencies covered by noise cancellation
"David Nebenzahl" wrote in message
.com...
Let me guess: it (inverting the signal) would work fine at low
frequencies, but progressively worse at higher frequencies?
*IF* you could provide a 100% accurate signal of the actual sound in the ear
canal, and reinject a perfectly matched inverted copy in exactly the same
spot, with no phase shift whatsoever, then the rest should be very simple
indeed :-) :-)
MrT.
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