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Ltx 2.3 lip-sync issues tied to specific voice inputs

By PulseAugur Editorial · [1 sources] ·

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.

RANK_REASON User reports on a specific feature's inconsistent performance within a software tool.

Read on r/StableDiffusion →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Ltx 2.3 lip-sync issues tied to specific voice inputs

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0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
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Tool
User reports on a specific feature's inconsistent performance within a software tool.
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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product, other
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High
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137 days old
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COVERAGE [1]

  1. r/StableDiffusion TIER_2 English(EN) · /u/narsone__ ·

    Ltx 2.3 lip synchronization depending on the voice.

    <!-- SC_OFF --><div class="md"><p>I've tested this extensively. Ltx 2.3 FF to LF. Same reference photos, same prompt, same LoRa, but different voice audio. With one of the voices, lip-sync works perfectly, but with the other, it never does. The voice that fails never lip-syncs, r…

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