wan-multitalk

# WAN MultiTalk — Audio-Driven Talking Avatar ## Overview MultiTalk (MeiGen-AI) drives a still portrait's lip-sync and head motion from an audio track. It runs on WAN 2.1 14B Image-to-Video via kijai's ComfyUI-WanVideoWrapper. Wav2Vec speech embeddings condition the WAN sampler so the mouth and expression follow the speech, while the lightx2v step-distill LoRA keeps it to a few sampling steps. Use it for talking heads, dubbing, and single-speaker avatar clips (~10s at 480p). It is distinct from `wan-animate` (pose/motion-driven character animation). This is audio → lip-sync, not reference-video motion transfer. Pack: `wan-multitalk` (480p, ~10s). Higher-res/longer variants exist in the source bundle (720p, long-context) as VRAM/duration knobs on the same graph. ## Pipeline (node graph) ``` LoadImage (portrait) ─┐ LoadAudio ─ AudioSeparation ─ AudioCrop ─ DownloadAndLoadWav2VecModel ─ MultiTalkWav2VecEmbeds ─┐ ▼ WanVideoModelLoader (WAN 2.1 14B I2V GGUF) ─ MultiTalkModelLoader ─ WanVideoLoraSelect (lightx2v) + LoadWanVideoT5TextEncoder (umt5) + WanVideoTextEncode + WanVideoClipVisionEncode (clip_vision_h) + WanVideoVAELoader ──────────────────────────────────────────────────────────────────────────┘ ▼ WanVideoImageToVideoMultiTalk ─ WanVideoSampler ─ WanVideoDecode ─ VHS_VideoCombine ``` Key no...