OMF issues anyone?

I have done two succsessful OMF exports. Now in to my third OMF export I suddenly get a load of error messages.

Here they are:

1. OMFI_ERR: Mob not present in this file

2. OMFI_ERR: MobID not present in this file

3. OMFI_ERR: Invalid object attatched to property

....and finally: OMF export failed to internal error

After that Logic hangs...

Anyone recognize this?

Possible sollutions?

Greatful for advice,

Erik

2x2 G5, 15' PB, 12' PB, G4 MD, Mac OS X (10.4.3), TDM user

Posted on Dec 13, 2005 9:08 AM

Reply
8 replies

Dec 15, 2005 2:39 PM in response to Rohan Stevenson1

Hey Rohan,

yes, it's sorted. But I never found out what those err.msgs was. Finally I copied all files to a different folder, optimized and tried again. Bingo.

Yes it is really reliable, next song went really smooth.

Don't know what the issues was with the bugging one.

So I gotta say OMF is the way to go if your taking your Logic song to be mixed in PT. Now I only wish there was a feature to export your midisynths as well, without printing first. Now that'd be slick!

Another note: watch out for "Bounce Latency"! I've found that bus recording is dead-on but bouncing leaves an offset.
This goes ofcourse for my LP7.1.1/TDM rig but I doubt it will be any different with a native system.

Cheers,

Erik

Dec 17, 2005 8:17 AM in response to Erik Sojdelius

So I gotta say OMF is the way to go if your taking
your Logic song to be mixed in PT. Now I only wish
there was a feature to export your midisynths as
well, without printing first. Now that'd be slick!


I'm just about to get into testing an OMF export, so maybe I'm speaking from ignorance here, but re the MIDI tracks, what about exporting a standard MIDI file to achieve this?

Another note: watch out for "Bounce Latency"! I've
found that bus recording is dead-on but bouncing
leaves an offset.


Did you mean that offline bouncing leaves an offset?

Dec 17, 2005 9:33 AM in response to iSchwartz

omf is for exporting your masters for a dubb or more rarely transporting files recorded in logic into protools or some other omf accepting DAW. if you want to export midi - yes exporting a midi file is the best way. exporting omf is fantastic for putting allof your individual cues into one file that then come up in the right place in whatever is being used at the dub.

i don't know about the offset - i don't really believe it.

the most important thing to watch out for is that omf doesn't timestamp your files. they will be in the correct position in refernce to the start of the song or start of the project. that means that the beginning of your song and the beginning of the project it is destined for must agree. or be simple enough for an offset to be made.

ie project start is 10 hours - so should your logic song start at 10 hours. when you export your omf it is a really good idea to export it with a sync plop or reference region (which can be silent) just to be absolutely sure that there is no foul ups (not nec computer or DAW ones - mostly human - at the receiving end).

final point - is tell them to ignore the frame rate. it defaults to 29.97 when logic exports the audio. but it doesn't matter because logic is not exporting any video material.

also - it is wise to send them as 16bit files which you can dither down at point of export anyway. i am not sure omf supports 24bit. i have never had a chance to experiment because i have never had time - so far.

Dec 17, 2005 8:28 PM in response to Erik Sojdelius

Another note: watch out for "Bounce Latency"! I've
found that bus recording is dead-on but bouncing
leaves an offset.
This goes ofcourse for my LP7.1.1/TDM rig but I doubt
it will be any different with a native system.


I just did a real-time and an offline bounce of an edit to a 2-track mix. Afterwards I added both bounces to the Arrange window, used the key command "Regions to Original Record Position" on both of these bounces, flipped the phase of the original track (using the Logic Gain pluggy), and played back pairs:

- edited original + realtime bounce
- edited original + offline bounce

Both times I got perfect cancellation (i.e., silence, utter silence).

I don't write this to negate your experience, but just to offer perspective that I didn't get any latency.

(I will say that the first time I tried the offline bounce that my system hung -- endlessly spinning pizza -- but that's a story for another thread).

System: 10.4.3, Logic 7.1.1, MOTU 424/2408

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