Last Updated 1 month ago
Definition
Layback is the process of transferring a finished or mixed audio track back onto the master video for final delivery. It usually happens near the end of post-production, after dialogue, music, sound effects, and overall mixing have been completed.
In simple terms, layback is the step where the final sound is married back to the final picture so the project can be delivered as a complete master.
How Layback Works
During post-production, picture and sound are often handled separately for much of the workflow. The video may be edited in one system, while the audio is cleaned, edited, and mixed in another. Once the final mix is approved, that finished audio is laid back onto the locked picture.
This may include:
syncing the final stereo or multichannel mix to the master video
replacing temporary or guide audio with the finished mix
creating a final deliverable with both picture and sound combined
preparing the project for broadcast, streaming, theatrical, or archive delivery
Layback is usually one of the last technical steps before export, mastering, or delivery.
Where Layback Is Used
Layback is most commonly used in professional post-production workflows for:
feature films
television programs
broadcast deliverables
commercials
documentaries
corporate and branded video
The term is especially common in workflows where audio finishing happens outside the main editing timeline and must be rejoined to the final picture master.
Why Layback Matters
Layback matters because a project is not truly finished until the approved final audio is properly attached to the final picture. A great mix does not help if the wrong version ends up on the master, if sync is off, or if temporary audio is still present.
This stage helps ensure the final delivered file contains the correct sound mix, in sync, at the proper technical standard.
Layback vs. Mix
These terms are related, but they are not the same.
Mix:
The process of balancing and finishing the audio elements, including dialogue, music, and effects.
Layback:
The process of putting that finished mix back onto the final master video.
The mix is the creative and technical sound-finishing stage. Layback is the final transfer or assembly stage.
Related Terms
[Audio Mix]
[Post-Production Sound]
[Master Delivery]
[Picture Lock]
[Sound Design]
[Final Mix]