  This paper presents the results of a study conducted on the perceptual
acceptability of audio-video desynchronization for sports videos. The study was
conducted with 45 videos generated by applying 8 audio-video offsets on 5
source contents. 20 subjects participated in the study. The results show that
humans are more sensitive to audio-video offset errors for speech stimuli, and
the complex events that occur in sports broadcasts have higher thresholds of
acceptability. This suggests the tuning of audio-video synchronization
requirements in broadcasting to the content of the broadcast.
