Adding a SyncNet-based lip-synchrony loss plus a duration loss to a pre-trained audio-visual speech-to-speech model improves lip-sync of overlaid translated audio on original videos across four language pairs.
not trading off lip-synchrony improvements over speech translation quality and naturalness
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Improving Lip-synchrony in Direct Audio-Visual Speech-to-Speech Translation
Adding a SyncNet-based lip-synchrony loss plus a duration loss to a pre-trained audio-visual speech-to-speech model improves lip-sync of overlaid translated audio on original videos across four language pairs.