Logic Pro 9 Multi Track Phase Locked Editing

Eli

Logician
Hi All,

A question for the panel:

When _wouldn't_ you want to use phase locked editing when you are assigning tracks together in a group with the intent of editing them together? Is there some scenario where you would not want the phase locked editing option enabled?
 
Hi All,

A question for the panel:

When _wouldn't_ you want to use phase locked editing when you are assigning tracks together in a group with the intent of editing them together? Is there some scenario where you would not want the phase locked editing option enabled?

A drummer with a lazy left foot?
 
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BACKGROUND:

Let's say you had a bunch of acoustic drum tracks grouped together. Phase locking them is obviously necessary. I won't get into the reasons, but they have to do with fact that every microphone is also picking up stuff that other microphones were pointing towards. There's a bit of hihat on the overhead mic and vice versa. And so on...

So if there is a simultaneous tom hit and snare hit, but they are 20mS apart from each other, they will always stay 20mS apart from each other even as all drum tracks are sliced, quantize, stretched (since they are edited TOGETHER, in lock step with each other).

If the tom track was moved independently compared to the snare track, then the bleed of the tom on the snare track would not match the timing of that very same tom on the tom track.

PHASE LOCK: OFF?

So if you realize WHY one might want tracks phase locked, it makes sense to NOT phase lock tracks for which there is no bleed between them, and that you want to Flex each track within the group to its best location unto itself.


By the way, in some cases there can be interesting results (even improvements) by messing with the timing relationships between tracks with bleeding between them.
 
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Hey F-erenc,

Thanks for the reply - what I don't get is this:

If you have tracks grouped and edit them, how can you edit them together based on them being grouped,and _not_ have them phase locked? What does that phase locked audio check box actually do or change? Does this mean that if tracks were grouped - even if they were disparate tracks, not part of a drum kit - and you edited them without having that phase lock check box enabled, that they would somehow be cut differently then when the phase locked check box is on?

I might of just thought of a possible answer: maybe without phase locked audio enabled, grouped tracks are edited on the nearest zero crossing instead of at the exact phase locked millisecond?
 
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