For graphical videos with an off-camera narrator, a straightforward voice narration works best, whether being paired to visuals for the first time or replacing a different language. For “live” videos with on-camera speakers, there are several great options depending on your timeline and budget. UN Voice-Over – The original talking head voice stays in the audio/video but is lowered in the mix, and the translated audio file is heard more prominently in the foreground. Phrase-Sync – Audio is timed to match the duration of the talking head by phrase or sentence, but matching mouth movements is not a priority. Lip-Sync – The voice-over matches the lip movement of the speaker, as well as the speed and tone. This is a resource-intensive, precise option for high-budget projects.