What analog TV impairments are no longer problems in digital video?

What analog TV impairments are no longer problems in digital video?

• A. Ghosting and Snow
• B. Color Bleed
• C. Tearing
• D. Pixelation

Answer: (A)

Digital video delivers a single, reconstructed image from a tightly encoded stream, with error checking, buffering, and synchronized frames. That setup removes the two classic analog problems: ghosting, which is a faint offset image caused by delayed signal components, and snow, the random static that appears when the signal is weak or missing. In digital, the viewer either receives valid pixel data or not, and errors are concealed or rejected rather than producing multiple offset images or random specks. So ghosting and snow no longer appear as you would see them with analog broadcasts. You might instead encounter digital-specific artifacts like pixelation or blockiness if the bitrate is too low, but the old analog impairments aren’t part of digital video.

Digital video delivers a single, reconstructed image from a tightly encoded stream, with error checking, buffering, and synchronized frames. That setup removes the two classic analog problems: ghosting, which is a faint offset image caused by delayed signal components, and snow, the random static that appears when the signal is weak or missing. In digital, the viewer either receives valid pixel data or not, and errors are concealed or rejected rather than producing multiple offset images or random specks. So ghosting and snow no longer appear as you would see them with analog broadcasts. You might instead encounter digital-specific artifacts like pixelation or blockiness if the bitrate is too low, but the old analog impairments aren’t part of digital video.