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mark francombe wrote:
What on earth do you mean by that Andy? Its sounds frighteningly clever!
On Sat, Jun 18, 2011 at 5:26 PM, andy butler <akbutler@tiscali.co.uk <mailto:akbutler@tiscali.co.uk>> wrote:
With the sample accurate alignment it's pretty much possible
to unmix the layers...given time and patience.
Well, this is a real crisis management technique,
based on phase cancellation.
...but say you have a a recording of a loop performance
where you only have the stereo mix,
and you need to get an overdub separated
1) cut out a section of the recording with the desired overdub
2) cut out a section of the recording just before the desired overdub
3) line them both up as parallel tracks in your multi-track editor
4) get the loops synced as best you can moving one against the other
5) Invert one of them.
6) fiddle with exact relative positioning till the backing loop fades
7) adjust relative levels if necessary
8) repeat 6 & 7 9) curse the fact that sample accurate isn't quite accurate enough to
get perfect phase cancellation.
should now have that overdub split from the loop
I've actually used this technique to separate a solo from a looped backing,
..it will work.
andy