Hello! I have a (simple?) question:

How can one easily do a 90 degree phase-shift on a signal?

Please explain theoretical, and not just how to
implement it in CSound, as I'm probably going to
use it when programming in other languages too.

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| Anders "Pipe/Nature" Andersson, pipe@algonet.se
:

Look up "Hilbert Transform" in any good Signal Processing book.

		-Ed