A discrepancy between the visual and auditory elements of video content on the specified platform, resulting in a lack of alignment between what is seen and what is heard. For instance, a person’s lips may move to speak, but the corresponding sound occurs either before or after the visual cue.
The presence of this asynchrony detracts from the user experience, diminishing engagement and perceived quality. Viewers are more likely to discontinue watching content affected by it. Historically, this issue has been a persistent challenge due to variations in encoding, processing speeds, and network conditions.
