Why don't these signals null?
On 19/10/2019 14:22, James Price wrote:
The recordings weren't played by a human twice. A 10 sec. *recording* of a
guitar DI was played into an amp/cab twice, consecutively, one after the
other, the output of which was recorded and cut up into separate tracks.
Both tracks were time-aligned and the phase inverted on one.
It takes a fraction of a millimetre movement or a tiny difference in
atmospheric pressure or temperature to change the time delay between the
speaker and the microphone enough to give the symptoms you describe.
Even a difference in the background noise in the room will do it.
Have you tried normalising the difference signal to hear what it is?
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Tciao for Now!
John.
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