Embedding and De-embedding refer to which concept?

• A. Combining audio and video together and separating audio and video
• B. Encrypting signals for security
• C. Synchronizing video frames with audio
• D. Compressing video streams

Answer: (A)

Embedding and de-embedding describe the process of putting an audio signal into a video signal and then pulling that embedded audio back out. In professional video systems, signals such as audio are carried inside the video stream so they travel together as one transport. De-embedding is the reverse: at the destination, the audio is extracted from the combined signal so it can be processed or played on its own. This is common in equipment using SDI or HDMI, where multiple audio channels can be embedded into the video.

Why this fits: embedding literally means combining two signals into one, and de-embedding means separating them again. The other options describe different tasks—encryption for security, synchronization of video and audio timing, or compression of video data—which don’t capture the idea of combining and then separating audio from a video stream.