A constant offset may be corrected with an audio-delay or lip-sync control in the player, television or receiver. First determine whether sound is early or late and whether the offset stays stable. Adjust one device only at first so multiple compensations do not cancel or compound each other.
Choose a clear reference
Use a close-up conversation, a visible clap or another sharp event with matching sound. Distant stadium noise is a poor reference because real sound takes time to travel. Replay the same short passage if possible and note whether the mismatch is consistent rather than judging from a single uncertain moment.
Find the correct direction
Controls can use different sign conventions. A positive value may delay audio, while another interface describes advancing it. Read the player’s explanation and make a small adjustment, then test again. Record the starting value and avoid large changes that make a minor error harder to evaluate.
Check the whole sound route
Television processing, receivers and wireless headphones can introduce different delays. If the offset changes when you switch speakers, a global player correction may not suit both routes. Save separate settings only where the equipment supports them, and report the source and connection when a programme remains inconsistent.
