该模型实现了从音频长度到视频时长的智能映射系统，采用滑动窗口算法动态调整生成节奏。系统默认以2秒为基本处理单元，通过分析语音频谱特征自动判断场景转换点（如语句停顿或情绪变化），智能插入视觉过渡效果。用户可通过num_clip参数精细控制生成节奏，例如设为10将使系统将音频均匀分割为10个段落分别渲染。在效率方面，使用8块A100显卡的配置下，生成1分钟720P视频的平均耗时仅18分钟，较上一代产品提速3倍。这种高效率使得单日可完成80-100条短视频的批量生产，为内容创作平台提供了规模化解决方案。
This answer comes from the articleWan2.2-S2V-14B: Video Generation Model for Speech-Driven Character Mouth SynchronizationThe
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