post-synch 
verb [with object]
Add a sound recording to (film or video footage) at a later time: with all that noise I shall have to post-synch everything...
- It was and remains cheaper to shoot without synch-sound in acoustically problematic locations (downtown streets and hotel rooms) and later post-synch all the dialogue.
- It was shot silently with dialogue spoken in Italian by non-professionals (the men played themselves) with the intention of post-synching English dialogue.
- Dateline fleshes out the political background with a concise post-synched commentary; this works well, and does not detract from some stunning documentary film-making.
- tread
- tread board
- treaded
- treader
- treadle
- treadmill
- tread on air
- tread (or step) on someone's toes
- tread (or walk) the boards
- tread the boards (or stage)
- tread water
- treadwheel
- treas.
- treason
- treasonable
- treasonably
- treasonous
- treasure
- treasure hunt
- treasurer
- treasurership
- Treasure State
- treasure trove
- treasury
- Treasury bench