> For the complete documentation index, see [llms.txt](https://docs.convai.com/api-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.convai.com/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync.md).

# 口型同步

使用预计算的 blendshape 数据和 Convai Face Sync AnimGraph 节点，让角色面部动作与 Convai 语音同步。

口型同步使角色的嘴和脸部动作与其声音同步。当角色说话时，Convai 会在音频旁发送面部动画数据，使两者保持同步——在 Unreal Engine 中不会产生额外的处理成本。

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>口型同步的工作原理</strong><br>了解 Convai 如何在音频旁传递面部动画数据，以及如何为你的角色骨骼选择合适的模式。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/how-lip-sync-works.md">口型同步的工作原理</a></td></tr><tr><td><strong>口型同步快速入门</strong><br>将 Face Sync 添加到 MetaHuman 角色，并在编辑器中运行时听到口型同步的语音。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/lip-sync-quick-start.md">口型同步快速入门</a></td></tr><tr><td><strong>Face Sync 组件参考</strong><br>Convai Face Sync 组件的所有属性，以及每一种口型同步模式值。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/face-sync-component-reference.md">Face Sync 组件参考</a></td></tr><tr><td><strong>Face Sync AnimGraph 节点参考</strong><br>Convai Face Sync AnimGraph 节点的所有属性：应用模式、alpha 值、平滑、饥饿和映射。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/face-sync-animgraph-node-reference.md">Face Sync AnimGraph 节点参考</a></td></tr><tr><td><strong>录制并重放口型同步</strong><br>在对话期间捕获实时口型同步序列，并使用 C++ 录制 API 在之后回放。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/record-and-replay-lip-sync.md">录制并回放口型同步</a></td></tr><tr><td><strong>口型同步使用示例</strong><br>常见设置，包括 Add 与 Override 混合、平滑调优以及自定义 blendshape 重映射。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/lip-sync-usage-examples.md">口型同步使用示例</a></td></tr><tr><td><strong>排查口型同步问题</strong><br>修复嘴部无动作、帧饥饿、错误的 blendshape 映射以及骨骼不匹配。</td><td><a href="/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/troubleshoot-lip-sync.md">排查口型同步问题</a></td></tr></tbody></table>

### 下一步

先从 [口型同步的工作原理](/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/how-lip-sync-works.md) 以了解数据管线和六种口型同步模式。然后继续 [口型同步快速入门](/api-docs/zh/cha-jian-yu-ji-cheng/convai-unreal-engine-plugin/features/lip-sync/lip-sync-quick-start.md) 在转到参考页面之前，让口型同步在 MetaHuman 角色上运行起来。


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