Differentiate between LTC and VITC timecode and give a typical use case for each.

• A. LTC is an audio-timecode track used on tape playback; VITC is video-embedded timecode in the video frame used for on-set video synchronization.
• B. LTC is used for on-set video synchronization; VITC is used on tape playback.
• C. LTC encodes color information; VITC encodes frame rate.
• D. LTC and VITC are identical formats.

Answer: (A)

The main idea here is that timecode can live in two different parts of the signal, and each serves a distinct practical role in production workflows. Longitudinal Timecode (LTC) is carried on an audio track of the tape. Because it travels on the audio path, it’s ideal for real‑time synchronization of multiple devices during capture or playback—video decks, audio recorders, sync generators can all be tied to the same LTC so they stay in sync as the tape runs. Vertical Interval Timecode (VITC), on the other hand, is embedded in the vertical interval of each video frame within the video signal itself. This makes VITC readable even if you’re not pulling from the audio track, which is especially useful for post‑production indexing and frame‑accurate edits, and it provides a stable timecode reference on set when you need to align footage across devices via the video signal. So LTC is the audio‑based, tape‑side timecode used for live synchronization, while VITC is the video‑embedded timecode used for precise frame mapping and continued access in post.