The biggest sin of bad dual audio is the "lag." When an actor’s lips move, the Hindi voice should land millisecond-perfect. Top releases have a minimum audio bitrate of 128kbps for the dubbed track and 384kbps for the English track.
"Top" in the title doesn't always mean high quality; it can often be a compressed "CAM" rip or have poorly synced audio. Copyright: scary movie 3 dual audio top
Cindy Campbell (Anna Faris) investigating the "cursed videotape". The biggest sin of bad dual audio is the "lag