Elastic Audio Phase Coherency

[pfo]

I'm sure this has been discussed before, but it didn't turn up in my searches.....

For those of you using elastic audio in 7.4 -- how does it do with phase coherency? If I want to tighten multi-track drums, I'll use Beat Detective and/or good old editing by hand. Do you find that elastic audio effectively replaces those methods? If you use it across multiple tracks, as in drum editing, does it maintain phase relationships between the tracks, or are you finding artifacts, "phasiness", or any other weirdness with the stretched parts?

Thanks for your help, and if this has been discussed ad infinitum, kindly point me to the thread and I'll be on my way.

Cheers!

[MoritzRock]

Hi,
The only way is going to keep the phase relationship between the mics, on the tracks is if you use REGION GROUPS before quantizing or moving warp markers. Set the sensitivity and warp markers before creating the region group.
Also this might help a bit..

http://www.youtube.com/watch?v=GqESIB3DT0Y

Actually, see below!! NOT REGION GROUPS BUT TRACK GROUPS!! Sorry!!

[PaulV]

Actually, track groups, not region groups, are what you need to keep things in phase - if you keep your separate drum mic tracks all in an edit group while you do your elastic editing & quantizing, then they should stay in phase. The Rhythmic algorithm is best suited to keeping things in relative phase, and Polyphonic does a good job as well (and works better for things with long decays like crashes).

[MoritzRock]

Actually, track groups, not region groups, are what you need to keep things in phase - if you keep your separate drum mic tracks all in an edit group while you do your elastic editing & quantizing, then they should stay in phase. The Rhythmic algorithm is best suited to keeping things in relative phase, and Polyphonic does a good job as well (and works better for things with long decays like crashes).

Apologies, to pfo!!
just me misunderstanding your colleague's demo Paul, oops!!
Kind of weird (thought it was strange) the first time i have tried (with track groups enabled) it seemed PT put everything on the bit without keeping the phase the same... probably my fault then!
haven't had 7.4 long and still getting my head around some of the new features.

Cheers

[studiogorilla]

I just successfully drum edited a song using elastic time. I did a region group for each section that I worked on. Are you guys saying that that's an unnecessary step... that I only need to do an edit group on the drums?

[Produce_Dept]

I just successfully drum edited a song using elastic time. I did a region group for each section that I worked on. Are you guys saying that that's an unnecessary step... that I only need to do an edit group on the drums?

That is correct. Did you use edit groups as well as region groups?

[studiogorilla]

Yes, edit and region groups. I'm 'bout to dig back in on some drum editing. I'll try just an edit group.

THANKS!

CL, the studiogorilla

[Bobby Peru]

I've used EA extensively and find even through 7.4 CS2 it does indeed smear the phase of the Drum tracks. I use EA on multi tracked drums grouped together. Sometimes, even with appropriate analysis markers and warp markers certain tracks get shifted in ways that don't completely make sense.

One of the sessions in particular I had a problem with a bottom snare mic getting mis-shifted by arbitrary values.

Bobby Peru
Milwaukee, WI

[Chompers]

Its hard to tell when its the phase or just the sound that EA invokes.
Not impressed by EA.

[Touchwood Studios]

Make sure all your drums are recored in phase. CS2 works perfect for me every time zero phase issues.