OMF/AAF Delivery Specs

The following is the preferred track lay for delivery to the mix session.



Production Dialogue

Theme & Bump Music

GFX (Graphics FX)
SFX (All other FX)

Backgrounds & Atmos


All the above should be separated out onto as many tracks as necessary in the order as above. Adhering to this layout will help me find everything.


Please delete all the duplicate clips. Sometimes this method of doubling or tripling clips is used to to increase volume. I don't need them and it really takes a long time for me to go through and clean these out.


If there is more than one VO talent, give them each their own track. 


Please checkerboard all the music and if possible put the theme and bumpers on a separate track from the rest of the music. Checkerboarding means the first music cue goes on one track pair (A), the next cue goes on another track pair (B), the next cue goes back on the first track pair (A) and the next cue on the second track pair (B) and so on... A, B, A, B, A, B this way I can overlap and crossfade the music where I need to.


If your show has specific graphics FX (GFX) that re-occur throughout the show (such as bumpers) please seperate them out onto their own FX tracks.


Try not to mix mono and stereo clips on the same tracks. Either duplicate the mono clip into faux stereo (L/R) or keep mono clips on dedicated mono tracks. Likewise ALWAYS keep stereo pairs together.


If you are editing on Final Cut you will be delivering an OMF, if on Avid it will be an AAF. The same specs apply to both. Try to keep the file size below 2GB, if it comes out to more than this try deleting any duplicated audio and/or reduce the clip handle length (usually around 90 to 150 frames is enough).


For the video I'll need a Quicktime movie, a low rez output is fine, the QT file will be around 300MB or less, I don't need anything bigger or HD. Make sure this output has a timecode window burn either at the bottom or top. I will need the editors rough mix as the audio track on the movie. It's handy to have a reference as to where the editor was at, as well as a quick way to check sync.


Please refer to the settings on the next page for preferred Quicktime Export Settings.


Please use the online form or call. 


Red Broad

BritMix Audio Post LA


BritMix Audio Post NL

06 4224 3889

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