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"link": 2535, "localized_name": "images", "name": "images", "type": "IMAGE" }, { "link": 2578, "localized_name": "audio", "name": "audio", "shape": 7, "type": "AUDIO" }, { "link": 2638, "localized_name": "fps", "name": "fps", "type": "FLOAT", "widget": { "name": "fps" } } ], "mode": 0, "order": 28, "outputs": [ { "links": [ 2532 ], "localized_name": "VIDEO", "name": "VIDEO", "type": "VIDEO" } ], "pos": [ 3260, 6680 ], "properties": { "Node name for S&R": "CreateVideo" }, "size": [ 270, 86.66666666666667 ], "type": "CreateVideo", "widgets_values": [ 24 ] }, { "bgcolor": "#000", "color": "#222", "flags": {}, "id": 1003, "inputs": [], "mode": 0, "order": 5, "outputs": [], "pos": [ -1970, 5570 ], "properties": {}, "size": [ 560, 640 ], "title": "Model Links", "type": "MarkdownNote", "widgets_values": [ "Guide: [Subgraph](https://docs.comfy.org/interface/features/subgraph)\n\n## Model Links (for Local Users)\n\n**diffusion_models**\n\n- [ltx-2-19b-distilled_transformer_only_bf16.safetensors](https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/diffusion_models/ltx-2-19b-distilled_transformer_only_bf16.safetensors)\n\n**vae**\n\n- [LTX2_audio_vae_bf16.safetensors](https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/VAE/LTX2_audio_vae_bf16.safetensors)\n\n- [LTX2_video_vae_bf16.safetensors](https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/VAE/LTX2_video_vae_bf16.safetensors)\n\n**text_encoders**\n\n- [gemma_3_12B_it_fp8_scaled.safetensors](https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp8_scaled.safetensors)\n- [ltx-2-19b-embeddings_connector_distill_bf16.safetensors](https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/text_encoders/ltx-2-19b-embeddings_connector_distill_bf16.safetensors)\n\n\n## Model Storage Location\n\n```\nπŸ“‚ ComfyUI/\nβ”œβ”€β”€ πŸ“‚ models/\nβ”‚ β”œβ”€β”€ πŸ“‚ diffusion_models/\nβ”‚ β”‚ └── ltx-2-19b-distilled_transformer_only_bf16.safetensors\nβ”‚ └── πŸ“‚ text_encoders/\nβ”‚ β”œβ”€β”€ gemma_3_12B_it_fp8_scaled.safetensors\nβ”‚ └── ltx-2-19b-embeddings_connector_distill_bf16.safetensors\n```\n\n## Report Issue\n\nNote: Please update ComfyUI first ([guide](https://docs.comfy.org/installation/update_comfyui)) and prepare required models. Desktop/Cloud will be updated after the stable release; nightly-supported models may not be included yet, please wait for the next stable release.\n\n- Cannot run / runtime errors: [ComfyUI/issues](https://github.com/Comfy-Org/ComfyUI/issues)\n- UI / frontend issues: [ComfyUI_frontend/issues](https://github.com/Comfy-Org/ComfyUI_frontend/issues)\n- Workflow issues: [workflow_templates/issues](https://github.com/Comfy-Org/workflow_templates/issues)\n" ] }, { "flags": {}, "id": 1001, "inputs": [ { "link": 2628, "localized_name": "value", "name": "value", "type": "FLOAT", "widget": { "name": "value" } } ], "mode": 0, "order": 33, "outputs": [ { "links": [ 2636, 2637, 2638, 2639, 2657 ], "localized_name": "FLOAT", "name": "FLOAT", "type": "FLOAT" } ], "pos": [ -1340, 7390 ], "properties": { "Node name for S&R": "PrimitiveFloat" }, "size": [ 490, 60 ], "title": "FPS", "type": "PrimitiveFloat", "widgets_values": [ 24 ] }, { "flags": {}, "id": 1009, "inputs": [ { "link": 2651, 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"type": "SaveVideo", "widgets_values": [ "video/ltx-2-a2v", "auto", "auto" ] }, { "bgcolor": "#000", "color": "#222", "flags": {}, "id": 775, "inputs": [], "mode": 0, "order": 2, "outputs": [], "pos": [ -2811.3307649008393, 5674.666965974314 ], "properties": {}, "size": [ 741.6666666666667, 1533.3333333333335 ], "type": "MarkdownNote", "widgets_values": [ "# LTX-2 Audio to Video Workflow Guide\n\n> ⚠️ **Experimental Workflow** β€” This is a highly experimental workflow. Results are not guaranteed and may vary significantly between runs.\n\n## Overview\n\nThis workflow uses **audio files to generate video from a single image**. Rather than text-to-video or image-to-video in the traditional sense, you're providing an audio track that drives the video generation process.\n\n## Resolution Requirements\n\n- **Maximum Resolution:** 1600Γ—900 β€” exceeding this limit will produce black videos\n- **If your output is black:** Stop your run immediately and reduce the resolution\n- **Aspect Ratio:** Your target resolution determines the aspect ratio of the final video, so choose dimensions that match your intended output format\n\n## Audio Requirements\n\n- **Minimum Length:** Your input audio must be at least **48 seconds long**\n- **Trimming:** Use the **Audio Crop** node to select which portion of your audio to use\n- **Selection Format:** Crop times are displayed in `m:ss` format (e.g., `0:00` to `0:48`)\n- **Important:** Ensure your selection is at least 48 seconds long, or the workflow will not have enough audio to complete the full generation\n- **Vocal Processing:** The workflow automatically separates vocals from the audio/music, then recombines them for the final outputβ€”this allows the video generation to react correctly to vocals\n\n## What to Expect\n\n- **Output Duration:** Up to 48 seconds of footage generated through sequential extension runs\n- **Progressive Previews:** The workflow sends preview outputs along the way, allowing you to monitor quality and stop early if the generation starts to degrade\n- **Variable Results:** Due to the experimental nature, some runs will produce better results than others\n\n## Prompting Tips\n\nPrompting is extremely powerful in this workflowβ€”and requires careful attention.\n\n### Stay on Subject\n\nIf you want the video to remain focused on your subject, **explicitly mention the subject in your prompt**. Without reinforcement, the model may drift away from the original image content.\n\n**Example:** \nIf your source image is a woman playing piano, include \"woman playing piano\" in your prompt throughout.\n\n### Avoid Scene Changes\n\nDescribing a different scene in your prompt will often cause the video to **immediately jump to that new scene**, which can break continuity. Be intentionalβ€”if you want smooth, coherent footage, keep your prompt consistent with the source image.\n\n## Workflow Tips\n\n1. **Start with a clear, well-composed source image** β€” The quality of your input image significantly affects output quality\n2. **Watch the previews** β€” If you notice the video falling apart (distortion, subject loss, incoherence), stop the workflow rather than waiting for the full 48 seconds\n3. **Iterate on prompts** β€” Small prompt changes can produce dramatically different results\n4. **Expect experimentation** β€” This workflow rewards trial and error; don't expect perfection on the first attempt\n\n## Summary\n\n| Aspect | Details |\n|--------|---------|\n| Modality | Audio β†’ Video (from single image) |\n| Max Duration | 48 seconds |\n| Generation Method | Extension runs with previews |\n| Stability | Experimental |\n\n---\n\n*Remember: This is cutting-edge functionality. 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