这是一款基于 LTX2.3 单人数字人 + 图片驱动 + 音频驱动 + PromptRelay 分段口播控制 + IC Edit 去字幕 / 去水印 LoRA + NAG 音画条件增强 + 三阶渲染打磨 的高稳定无字幕口播视频应用。用户上传一张 人物首帧图 和一段 驱动音频，系统会先提取人声，再把音频编码成 Audio Latent，与人物图生成的 Video Latent 融合，让人物根据声音节奏自然开口说话，同时保持人物身份、服装、背景和镜头稳定。
这版相比普通图片+音频数字人，重点增强在 IC Edit 无字幕链路。它不只是让人物开口说话，还额外加入了去字幕 LoRA、去水印 LoRA、强负向词和 IC Edit 修复提示词，用来压制口播视频里常见的字幕、乱码文字、水印、logo overlay、画面脏字和不稳定残影。再配合 VBVR、Crisp、运动跟踪控制 LoRA、三阶段采样和双重 Latent Upsampler，适合做无字幕口播、AI讲解、虚拟主播、品牌介绍、课程短视频、人物唱歌/说话视频和干净成片素材。核心优势是：一张人物图 + 一段音频，生成无字幕、无水印、人物更稳定的单人数字人口播视频。 使用时建议重点控制四项：人物首帧图决定身份，驱动音频决定口播节奏，全局提示词（用来写整体画面规则）决定整体画面，分段提示词（写每个时间段的动作变化）决定每段表演动作。
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