Ltx 2.3 lip synchronization depending on the voice.
Users of Ltx 2.3 are reporting inconsistent lip-synchronization results when generating videos. The issue appears to be tied to specific voice inputs, with some voices producing perfect lip-sync while others fail entirely, regardless of other parameters like reference photos or prompts. While some workarounds involving LoRAs like Talking-Head or TalkVid-3k show partial success with problematic voices, the underlying cause for this voice-dependent discrepancy remains unclear. AI
IMPACT Inconsistent performance in AI-powered video generation tools can hinder adoption and require further development for reliable lip-sync.