Which term describes a tone that is 1 kHz and lasts for one frame at the 2-second mark, used as a synchronization cue?

Which term describes a tone that is 1 kHz and lasts for one frame at the 2-second mark, used as a synchronization cue?

• A. 2-pop
• B. 3:2 pull down
• C. Blackburst
• D. Blimp

Answer: (A)

In video and audio post, synchronization cues are short, precise signals that let audio and picture line up exactly. A brief 1 kHz tone that lasts for a single frame and is placed at the two-second mark is a two-pop. This tiny, time-stamped tone provides a clear reference point so editors and playback systems can lock the audio and video tracks together with confidence. The other options aren’t synchronization cues of this kind: a 3:2 pull-down is about converting film frames to video frames, blackburst is a video sync signal for equipment timing, and a blimp is a housing used to reduce microphone noise.

In video and audio post, synchronization cues are short, precise signals that let audio and picture line up exactly. A brief 1 kHz tone that lasts for a single frame and is placed at the two-second mark is a two-pop. This tiny, time-stamped tone provides a clear reference point so editors and playback systems can lock the audio and video tracks together with confidence. The other options aren’t synchronization cues of this kind: a 3:2 pull-down is about converting film frames to video frames, blackburst is a video sync signal for equipment timing, and a blimp is a housing used to reduce microphone noise.