Topic: Matrix in post problem child.

[tim in jersey]

I don't often do matrix mixes, if ever.

But recently, in the past year or so,  I've had access to some board feeds, using 2 different decks (722 and m-10). For the most part I can align them in post using Vegas by shifting the files at an early audio event like a drum hit and then time-stretching to a similiar event towards the end of the set and everything ends up sounding great.

I've got a sbd+onstage mic recording that is driving me batty. I started the sbd deck (m-10)  earlier than the onstage mics (lost 15-30 seconds of first song). I've aligned the first event in Vegas and it sounds 'aligned' then time-stretched the last event, a vocal. Everything lines up and sounds good at both beginning and end, but everything in between  quickly begins to skew.

Any thoughts or suggestion? At this point, I'm thinking of just aligning the beginning of the show, doing a quick cross-fade between sbd>aud and then strictly aud from there out...

[achalsey]

I don't have any experience with the M-10 or 722, but I run two H120s with CF cards and have had the same problem when I didn't format the cards often enough.

edit:  a couple other similar issues I was watching that unfortunately don't seem to be totally resolved:

http://taperssection.com/index.php?topic=147988.msg1896625#msg1896625

http://taperssection.com/index.php?topic=148426.msg1898410#msg1898410

[morst]

Everything lines up and sounds good at both beginning and end, but everything in between  quickly begins to skew.

are you 100% certain that each source runs without breaks once you sync? The "stretch" move should be pretty damn close!?

[Fried Chicken Boy]

Since you're running two different decks and, as far as I can tell, aren't syncing their wordclocks via a cable between the two, they will run at different speeds and drift no matter if the beginning and end are perfectly aligned.  You'll never get the two different sources to sync up properly without doing some math and adjusting the samples.  Check the thread here about the process > http://taperssection.com/index.php?topic=147988.0  I believe there are other threads on the topic but that's the first one that came up in a search.  Page appears to be the master of syncing sources so you might want to check in with him regarding the formula, tips, etc.  Good luck!

[tim in jersey]

Everything lines up and sounds good at both beginning and end, but everything in between  quickly begins to skew.

are you 100% certain that each source runs without breaks once you sync? The "stretch" move should be pretty damn close!?

99% positive. Weird issue, right?