LTX-2: Audio to VIdeo
Upload an audio file and a starting image frame. Generate a video synchronized to the audio using the LTX-2 model.
Download WorkflowTry in Cloud API documentation
About
The LTX-2: Audio to Video workflow is designed to transform an audio file and a starting image frame into a synchronized video. This process leverages the LTX-2 model, known for its ability to interpret audio cues and translate them into dynamic visual content. The workflow begins with the 'LoadImage' and 'LoadAudio' nodes, which allow users to input the initial image and audio file that will serve as the foundation for the video generation. These inputs are then processed through a series of custom nodes, including the 'comfyui-kjnodes', which are crucial for maintaining synchronization between the audio and visual elements.
Technically, the workflow utilizes a unique node identified by the ID '3458504c-2bd1-4267-8722-6f2478115b42', which plays a pivotal role in aligning the audio's rhythm and tempo with visual transitions. The 'SaveVideo' node is the final step, converting the processed data into a video file. This workflow is particularly useful for creators looking to produce engaging video content from audio tracks, such as music videos or audio-visual art pieces. Its experimental nature means that results can vary, offering a unique opportunity for creative exploration.
What you provide
- Reading the workflow
Runs in ComfyUI. This workflow can't run on this page. Open it in Comfy Cloud with everything loaded, or download it for your own ComfyUI.
Try in CloudNo sample outputs for this workflow yet.
Inside the workflow
A read-only preview of the node graph. Open it in Comfy Cloud or download it to edit the nodes.
Loading the graph
Open full-size workflow preview- Author
- ComfyUI
Requires custom nodes
- Reading the workflow
Use this workflow from code
Generated from the workflow graph and inputs when possible; stored examples are shown otherwise. Review credentials and endpoints before running code, which may incur charges.
1 Get API key ↗
What you need
- Runs on
- Comfy Cloud
- Key
- COMFY_API_KEY
Needs a paid Cloud plan and credits.
Download API JSONAPI documentation ↗
# Python 3.10+: pip install comfy-sdk==0.4.0
import os
from comfy_sdk import Comfy
api_key = os.environ.get("COMFY_API_KEY", "").strip()
if not api_key: raise RuntimeError("Set COMFY_API_KEY")
os.environ.setdefault("COMFY_BASE_URL", "https://cloud.comfy.org")
client = Comfy(api_key=api_key)
workflow = client.workflows.from_json({
"444": {
"class_type": "LoadImage",
"inputs": {
"image": "ltx2-a2v-input.png"
},
"_meta": {
"title": "Load Image"
}
},
"565": {
"class_type": "LoadAudio",
"inputs": {
"audio": "ltx2-a2v-input.mp3"
},
"_meta": {
"title": "Load Audio"
}
},
"982": {
"class_type": "SaveVideo",
"inputs": {
"filename_prefix": "video/ltx-2-a2v",
"format": "auto",
"format.codec": "auto",
"video": [
"994:995",
0
]
},
"_meta": {
"title": "Final Video"
}
},
"984": {
"class_type": "SaveVideo",
"inputs": {
"filename_prefix": "video/ltx-2-a2v",
"format": "auto",
"format.codec": "auto",
"video": [
"994:983",
0
]
},
"_meta": {
"title": "Preview Video"
}
},
"994:1001": {
"class_type": "PrimitiveFloat",
"inputs": {
"value": 24
},
"_meta": {
"title": "FPS"
}
},
"994:819": {
"class_type": "LTXVChunkFeedForward",
"inputs": {
"chunks": 4,
"dim_threshold": 4096,
"model": [
"994:952",
0
]
},
"_meta": {
"title": "LTXV Chunk FeedForward"
}
},
"994:820": {
"class_type": "LTX2_NAG",
"inputs": {
"inplace": True,
"model": [
"994:819",
0
],
"nag_alpha": 0.25,
"nag_cond_video": [
"994:922",
0
],
"nag_scale": 11,
"nag_tau": 2.5
},
"_meta": {
"title": "LTX2 NAG"
}
},
"994:821": {
"class_type": "LTXVPreprocess",
"inputs": {
"image": [
"994:923",
0
],
"img_compression": 25
},
"_meta": {
"title": "LTXV Preprocess"
}
},
"994:842": {
"class_type": "LTXVImgToVideoInplaceKJ",
"inputs": {
"latent": [
"994:855",
0
],
"num_images": "1",
"num_images.image_1": [
"994:821",
0
],
"num_images.index_1": 0,
"num_images.strength_1": 1,
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "LTXVImgToVideoInplaceKJ"
}
},
"994:855": {
"class_type": "EmptyLTXVLatentVideo",
"inputs": {
"batch_size": 1,
"height": [
"994:923",
2
],
"length": 241,
"width": [
"994:923",
1
]
},
"_meta": {
"title": "Empty LTXV Latent Video"
}
},
"994:857": {
"class_type": "FloatConstant",
"inputs": {
"value": 10.25
},
"_meta": {
"title": "window_size_seconds"
}
},
"994:890": {
"class_type": "AudioSeparation",
"inputs": {
"audio": [
"994:892",
0
],
"chunk_fade_shape": "linear",
"chunk_length": 10,
"chunk_overlap": 0.1
},
"_meta": {
"title": "AudioSeparation"
}
},
"994:892": {
"class_type": "AudioCrop",
"inputs": {
"audio": [
"565",
0
],
"end_time": "2:05",
"start_time": "1:05"
},
"_meta": {
"title": "AudioCrop"
}
},
"994:895": {
"class_type": "VAELoaderKJ",
"inputs": {
"device": "main_device",
"vae_name": "LTX2_audio_vae_bf16.safetensors",
"weight_dtype": "bf16"
},
"_meta": {
"title": "VAELoader KJ"
}
},
"994:904": {
"class_type": "VAELoaderKJ",
"inputs": {
"device": "main_device",
"vae_name": "LTX2_video_vae_bf16.safetensors",
"weight_dtype": "bf16"
},
"_meta": {
"title": "VAELoader KJ"
}
},
"994:921": {
"class_type": "CLIPTextEncode",
"inputs": {
"clip": [
"994:951",
0
],
"text": "the man is singing passionately"
},
"_meta": {
"title": "CLIP Text Encode (Prompt)"
}
},
"994:922": {
"class_type": "CLIPTextEncode",
"inputs": {
"clip": [
"994:951",
0
],
"text": "still image with no motion, subtitles, text, scene change"
},
"_meta": {
"title": "CLIP Text Encode (Prompt)"
}
},
"994:923": {
"class_type": "ImageResizeKJv2",
"inputs": {
"crop_position": "center",
"device": "cpu",
"divisible_by": 2,
"height": 720,
"image": [
"444",
0
],
"keep_proportion": "crop",
"pad_color": "0, 0, 0",
"upscale_method": "lanczos",
"width": 720
},
"_meta": {
"title": "Resize Image v2"
}
},
"994:927": {
"class_type": "LTXVConditioning",
"inputs": {
"frame_rate": [
"994:1001",
0
],
"negative": [
"994:950",
0
],
"positive": [
"994:921",
0
]
},
"_meta": {
"title": "LTXVConditioning"
}
},
"994:933": {
"class_type": "LTX2SamplingPreviewOverride",
"inputs": {
"model": [
"994:820",
0
],
"preview_rate": 8
},
"_meta": {
"title": "LTX2 Sampling Preview Override"
}
},
"994:950": {
"class_type": "ConditioningZeroOut",
"inputs": {
"conditioning": [
"994:921",
0
]
},
"_meta": {
"title": "Conditioning Zero Out"
}
},
"994:951": {
"class_type": "DualCLIPLoader",
"inputs": {
"clip_name1": "gemma_3_12B_it_fp8_scaled.safetensors",
"clip_name2": "ltx-2-19b-embeddings_connector_distill_bf16.safetensors",
"device": "default",
"type": "ltxv"
},
"_meta": {
"title": "Load CLIP (Dual)"
}
},
"994:952": {
"class_type": "UNETLoader",
"inputs": {
"unet_name": "ltx-2-19b-distilled_transformer_only_bf16.safetensors",
"weight_dtype": "default"
},
"_meta": {
"title": "Load Diffusion Model"
}
},
"994:969:823": {
"class_type": "RandomNoise",
"inputs": {
"noise_seed": 42
},
"_meta": {
"title": "RandomNoise"
}
},
"994:969:824": {
"class_type": "LTXVAudioVAEEncode",
"inputs": {
"audio": [
"994:969:862",
0
],
"audio_vae": [
"994:895",
0
]
},
"_meta": {
"title": "LTXV Audio VAE Encode"
}
},
"994:969:827": {
"class_type": "SamplerCustomAdvanced",
"inputs": {
"guider": [
"994:969:830",
0
],
"latent_image": [
"994:969:829",
0
],
"noise": [
"994:969:823",
0
],
"sampler": [
"994:969:953",
0
],
"sigmas": [
"994:969:954",
0
]
},
"_meta": {
"title": "SamplerCustomAdvanced"
}
},
"994:969:829": {
"class_type": "LTXVConcatAVLatent",
"inputs": {
"audio_latent": [
"994:969:859",
1
],
"video_latent": [
"994:969:896",
2
]
},
"_meta": {
"title": "Concat AV Latent"
}
},
"994:969:830": {
"class_type": "CFGGuider",
"inputs": {
"cfg": 1,
"model": [
"994:933",
0
],
"negative": [
"994:969:896",
1
],
"positive": [
"994:969:896",
0
]
},
"_meta": {
"title": "CFG Guider"
}
},
"994:969:831": {
"class_type": "LTXVSeparateAVLatent",
"inputs": {
"av_latent": [
"994:969:827",
0
]
},
"_meta": {
"title": "Separate AV Latent"
}
},
"994:969:832": {
"class_type": "LTXVCropGuides",
"inputs": {
"latent": [
"994:969:831",
0
],
"negative": [
"994:969:896",
1
],
"positive": [
"994:969:896",
0
]
},
"_meta": {
"title": "LTXVCropGuides"
}
},
"994:969:843": {
"class_type": "GetImageRangeFromBatch",
"inputs": {
"images": [
"994:978:826",
0
],
"num_frames": 25,
"start_index": -1
},
"_meta": {
"title": "Get Image or Mask Range From Batch"
}
},
"994:969:859": {
"class_type": "LTXVAudioVideoMask",
"inputs": {
"audio_end_time": [
"994:857",
0
],
"audio_latent": [
"994:969:824",
0
],
"audio_start_time": [
"994:857",
0
],
"existing_mask_mode": "add",
"max_length": "pad",
"video_end_time": [
"994:857",
0
],
"video_fps": [
"994:1001",
0
],
"video_latent": [
"994:969:900",
0
],
"video_start_time": 1
},
"_meta": {
"title": "LTXVAudioVideoMask"
}
},
"994:969:862": {
"class_type": "TrimAudioDuration",
"inputs": {
"audio": [
"994:890",
3
],
"duration": [
"994:857",
0
],
"start_index": 9
},
"_meta": {
"title": "Trim Audio Duration"
}
},
"994:969:896": {
"class_type": "LTXVAddGuideMulti",
"inputs": {
"latent": [
"994:969:859",
0
],
"negative": [
"994:927",
1
],
"num_guides": "2",
"num_guides.frame_idx_1": 0,
"num_guides.frame_idx_2": -1,
"num_guides.image_1": [
"994:923",
0
],
"num_guides.image_2": [
"994:923",
0
],
"num_guides.strength_1": 1,
"num_guides.strength_2": 0.5,
"positive": [
"994:927",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "LTXVAddGuideMulti"
}
},
"994:969:900": {
"class_type": "VAEEncode",
"inputs": {
"pixels": [
"994:969:843",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Encode"
}
},
"994:969:901": {
"class_type": "VAEDecodeTiled",
"inputs": {
"overlap": 64,
"samples": [
"994:969:832",
2
],
"temporal_overlap": 16,
"temporal_size": 256,
"tile_size": 1024,
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Decode (Tiled)"
}
},
"994:969:953": {
"class_type": "KSamplerSelect",
"inputs": {
"sampler_name": "lcm"
},
"_meta": {
"title": "KSamplerSelect"
}
},
"994:969:954": {
"class_type": "LTXVScheduler",
"inputs": {
"base_shift": 0.95,
"latent": [
"994:842",
0
],
"max_shift": 2.05,
"steps": 8,
"stretch": True,
"terminal": 0.1
},
"_meta": {
"title": "LTXVScheduler"
}
},
"994:969:987": {
"class_type": "ImageBatchExtendWithOverlap",
"inputs": {
"new_images": [
"994:969:901",
0
],
"overlap": 25,
"overlap_mode": "filmic_crossfade",
"overlap_side": "source",
"source_images": [
"994:978:826",
0
]
},
"_meta": {
"title": "Image Batch Extend With Overlap"
}
},
"994:978:817": {
"class_type": "SetLatentNoiseMask",
"inputs": {
"mask": [
"994:978:818",
0
],
"samples": [
"994:978:907",
0
]
},
"_meta": {
"title": "Set Latent Noise Mask"
}
},
"994:978:818": {
"class_type": "SolidMask",
"inputs": {
"height": 512,
"value": 0,
"width": 512
},
"_meta": {
"title": "Create Solid Mask"
}
},
"994:978:822": {
"class_type": "LTXVConcatAVLatent",
"inputs": {
"audio_latent": [
"994:978:817",
0
],
"video_latent": [
"994:842",
0
]
},
"_meta": {
"title": "Concat AV Latent"
}
},
"994:978:825": {
"class_type": "LTXVSeparateAVLatent",
"inputs": {
"av_latent": [
"994:978:883",
0
]
},
"_meta": {
"title": "Separate AV Latent"
}
},
"994:978:826": {
"class_type": "VAEDecodeTiled",
"inputs": {
"overlap": 64,
"samples": [
"994:978:825",
0
],
"temporal_overlap": 16,
"temporal_size": 128,
"tile_size": 1024,
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Decode (Tiled)"
}
},
"994:978:828": {
"class_type": "CFGGuider",
"inputs": {
"cfg": 1,
"model": [
"994:933",
0
],
"negative": [
"994:927",
1
],
"positive": [
"994:927",
0
]
},
"_meta": {
"title": "CFG Guider"
}
},
"994:978:863": {
"class_type": "RandomNoise",
"inputs": {
"noise_seed": 44
},
"_meta": {
"title": "RandomNoise"
}
},
"994:978:883": {
"class_type": "SamplerCustomAdvanced",
"inputs": {
"guider": [
"994:978:828",
0
],
"latent_image": [
"994:978:822",
0
],
"noise": [
"994:978:863",
0
],
"sampler": [
"994:978:944",
0
],
"sigmas": [
"994:978:939",
0
]
},
"_meta": {
"title": "SamplerCustomAdvanced"
}
},
"994:978:907": {
"class_type": "LTXVAudioVAEEncode",
"inputs": {
"audio": [
"994:978:991",
0
],
"audio_vae": [
"994:895",
0
]
},
"_meta": {
"title": "LTXV Audio VAE Encode"
}
},
"994:978:939": {
"class_type": "LTXVScheduler",
"inputs": {
"base_shift": 0.95,
"latent": [
"994:842",
0
],
"max_shift": 2.05,
"steps": 8,
"stretch": True,
"terminal": 0.1
},
"_meta": {
"title": "LTXVScheduler"
}
},
"994:978:944": {
"class_type": "KSamplerSelect",
"inputs": {
"sampler_name": "lcm"
},
"_meta": {
"title": "KSamplerSelect"
}
},
"994:978:991": {
"class_type": "TrimAudioDuration",
"inputs": {
"audio": [
"994:890",
3
],
"duration": [
"994:857",
0
],
"start_index": 0
},
"_meta": {
"title": "Trim Audio Duration"
}
},
"994:983": {
"class_type": "CreateVideo",
"inputs": {
"audio": [
"994:892",
0
],
"bit_depth": "auto",
"codec": "none",
"color_space": "sRGB",
"fps": [
"994:1001",
0
],
"images": [
"994:978:826",
0
]
},
"_meta": {
"title": "Create Video"
}
},
"994:988:823": {
"class_type": "RandomNoise",
"inputs": {
"noise_seed": 42
},
"_meta": {
"title": "RandomNoise"
}
},
"994:988:824": {
"class_type": "LTXVAudioVAEEncode",
"inputs": {
"audio": [
"994:988:862",
0
],
"audio_vae": [
"994:895",
0
]
},
"_meta": {
"title": "LTXV Audio VAE Encode"
}
},
"994:988:827": {
"class_type": "SamplerCustomAdvanced",
"inputs": {
"guider": [
"994:988:830",
0
],
"latent_image": [
"994:988:829",
0
],
"noise": [
"994:988:823",
0
],
"sampler": [
"994:988:953",
0
],
"sigmas": [
"994:988:954",
0
]
},
"_meta": {
"title": "SamplerCustomAdvanced"
}
},
"994:988:829": {
"class_type": "LTXVConcatAVLatent",
"inputs": {
"audio_latent": [
"994:988:859",
1
],
"video_latent": [
"994:988:896",
2
]
},
"_meta": {
"title": "Concat AV Latent"
}
},
"994:988:830": {
"class_type": "CFGGuider",
"inputs": {
"cfg": 1,
"model": [
"994:933",
0
],
"negative": [
"994:988:896",
1
],
"positive": [
"994:988:896",
0
]
},
"_meta": {
"title": "CFG Guider"
}
},
"994:988:831": {
"class_type": "LTXVSeparateAVLatent",
"inputs": {
"av_latent": [
"994:988:827",
0
]
},
"_meta": {
"title": "Separate AV Latent"
}
},
"994:988:832": {
"class_type": "LTXVCropGuides",
"inputs": {
"latent": [
"994:988:831",
0
],
"negative": [
"994:988:896",
1
],
"positive": [
"994:988:896",
0
]
},
"_meta": {
"title": "LTXVCropGuides"
}
},
"994:988:843": {
"class_type": "GetImageRangeFromBatch",
"inputs": {
"images": [
"994:969:987",
2
],
"num_frames": 25,
"start_index": -1
},
"_meta": {
"title": "Get Image or Mask Range From Batch"
}
},
"994:988:859": {
"class_type": "LTXVAudioVideoMask",
"inputs": {
"audio_end_time": [
"994:857",
0
],
"audio_latent": [
"994:988:824",
0
],
"audio_start_time": [
"994:857",
0
],
"existing_mask_mode": "add",
"max_length": "pad",
"video_end_time": [
"994:857",
0
],
"video_fps": [
"994:1001",
0
],
"video_latent": [
"994:988:900",
0
],
"video_start_time": 1
},
"_meta": {
"title": "LTXVAudioVideoMask"
}
},
"994:988:862": {
"class_type": "TrimAudioDuration",
"inputs": {
"audio": [
"994:890",
3
],
"duration": [
"994:857",
0
],
"start_index": 18
},
"_meta": {
"title": "Trim Audio Duration"
}
},
"994:988:896": {
"class_type": "LTXVAddGuideMulti",
"inputs": {
"latent": [
"994:988:859",
0
],
"negative": [
"994:927",
1
],
"num_guides": "2",
"num_guides.frame_idx_1": 0,
"num_guides.frame_idx_2": -1,
"num_guides.image_1": [
"994:923",
0
],
"num_guides.image_2": [
"994:923",
0
],
"num_guides.strength_1": 1,
"num_guides.strength_2": 0.5,
"positive": [
"994:927",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "LTXVAddGuideMulti"
}
},
"994:988:900": {
"class_type": "VAEEncode",
"inputs": {
"pixels": [
"994:988:843",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Encode"
}
},
"994:988:901": {
"class_type": "VAEDecodeTiled",
"inputs": {
"overlap": 64,
"samples": [
"994:988:832",
2
],
"temporal_overlap": 16,
"temporal_size": 256,
"tile_size": 1024,
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Decode (Tiled)"
}
},
"994:988:953": {
"class_type": "KSamplerSelect",
"inputs": {
"sampler_name": "lcm"
},
"_meta": {
"title": "KSamplerSelect"
}
},
"994:988:954": {
"class_type": "LTXVScheduler",
"inputs": {
"base_shift": 0.95,
"latent": [
"994:842",
0
],
"max_shift": 2.05,
"steps": 8,
"stretch": True,
"terminal": 0.1
},
"_meta": {
"title": "LTXVScheduler"
}
},
"994:988:987": {
"class_type": "ImageBatchExtendWithOverlap",
"inputs": {
"new_images": [
"994:988:901",
0
],
"overlap": 25,
"overlap_mode": "filmic_crossfade",
"overlap_side": "source",
"source_images": [
"994:969:987",
2
]
},
"_meta": {
"title": "Image Batch Extend With Overlap"
}
},
"994:989:823": {
"class_type": "RandomNoise",
"inputs": {
"noise_seed": 42
},
"_meta": {
"title": "RandomNoise"
}
},
"994:989:824": {
"class_type": "LTXVAudioVAEEncode",
"inputs": {
"audio": [
"994:989:862",
0
],
"audio_vae": [
"994:895",
0
]
},
"_meta": {
"title": "LTXV Audio VAE Encode"
}
},
"994:989:827": {
"class_type": "SamplerCustomAdvanced",
"inputs": {
"guider": [
"994:989:830",
0
],
"latent_image": [
"994:989:829",
0
],
"noise": [
"994:989:823",
0
],
"sampler": [
"994:989:953",
0
],
"sigmas": [
"994:989:954",
0
]
},
"_meta": {
"title": "SamplerCustomAdvanced"
}
},
"994:989:829": {
"class_type": "LTXVConcatAVLatent",
"inputs": {
"audio_latent": [
"994:989:859",
1
],
"video_latent": [
"994:989:896",
2
]
},
"_meta": {
"title": "Concat AV Latent"
}
},
"994:989:830": {
"class_type": "CFGGuider",
"inputs": {
"cfg": 1,
"model": [
"994:933",
0
],
"negative": [
"994:989:896",
1
],
"positive": [
"994:989:896",
0
]
},
"_meta": {
"title": "CFG Guider"
}
},
"994:989:831": {
"class_type": "LTXVSeparateAVLatent",
"inputs": {
"av_latent": [
"994:989:827",
0
]
},
"_meta": {
"title": "Separate AV Latent"
}
},
"994:989:832": {
"class_type": "LTXVCropGuides",
"inputs": {
"latent": [
"994:989:831",
0
],
"negative": [
"994:989:896",
1
],
"positive": [
"994:989:896",
0
]
},
"_meta": {
"title": "LTXVCropGuides"
}
},
"994:989:843": {
"class_type": "GetImageRangeFromBatch",
"inputs": {
"images": [
"994:988:987",
2
],
"num_frames": 25,
"start_index": -1
},
"_meta": {
"title": "Get Image or Mask Range From Batch"
}
},
"994:989:859": {
"class_type": "LTXVAudioVideoMask",
"inputs": {
"audio_end_time": [
"994:857",
0
],
"audio_latent": [
"994:989:824",
0
],
"audio_start_time": [
"994:857",
0
],
"existing_mask_mode": "add",
"max_length": "pad",
"video_end_time": [
"994:857",
0
],
"video_fps": [
"994:1001",
0
],
"video_latent": [
"994:989:900",
0
],
"video_start_time": 1
},
"_meta": {
"title": "LTXVAudioVideoMask"
}
},
"994:989:862": {
"class_type": "TrimAudioDuration",
"inputs": {
"audio": [
"994:890",
3
],
"duration": [
"994:857",
0
],
"start_index": 27
},
"_meta": {
"title": "Trim Audio Duration"
}
},
"994:989:896": {
"class_type": "LTXVAddGuideMulti",
"inputs": {
"latent": [
"994:989:859",
0
],
"negative": [
"994:927",
1
],
"num_guides": "2",
"num_guides.frame_idx_1": 0,
"num_guides.frame_idx_2": -1,
"num_guides.image_1": [
"994:923",
0
],
"num_guides.image_2": [
"994:923",
0
],
"num_guides.strength_1": 1,
"num_guides.strength_2": 0.5,
"positive": [
"994:927",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "LTXVAddGuideMulti"
}
},
"994:989:900": {
"class_type": "VAEEncode",
"inputs": {
"pixels": [
"994:989:843",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Encode"
}
},
"994:989:901": {
"class_type": "VAEDecodeTiled",
"inputs": {
"overlap": 64,
"samples": [
"994:989:832",
2
],
"temporal_overlap": 16,
"temporal_size": 256,
"tile_size": 1024,
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Decode (Tiled)"
}
},
"994:989:953": {
"class_type": "KSamplerSelect",
"inputs": {
"sampler_name": "lcm"
},
"_meta": {
"title": "KSamplerSelect"
}
},
"994:989:954": {
"class_type": "LTXVScheduler",
"inputs": {
"base_shift": 0.95,
"latent": [
"994:842",
0
],
"max_shift": 2.05,
"steps": 8,
"stretch": True,
"terminal": 0.1
},
"_meta": {
"title": "LTXVScheduler"
}
},
"994:989:987": {
"class_type": "ImageBatchExtendWithOverlap",
"inputs": {
"new_images": [
"994:989:901",
0
],
"overlap": 25,
"overlap_mode": "filmic_crossfade",
"overlap_side": "source",
"source_images": [
"994:988:987",
2
]
},
"_meta": {
"title": "Image Batch Extend With Overlap"
}
},
"994:990:823": {
"class_type": "RandomNoise",
"inputs": {
"noise_seed": 42
},
"_meta": {
"title": "RandomNoise"
}
},
"994:990:824": {
"class_type": "LTXVAudioVAEEncode",
"inputs": {
"audio": [
"994:990:862",
0
],
"audio_vae": [
"994:895",
0
]
},
"_meta": {
"title": "LTXV Audio VAE Encode"
}
},
"994:990:827": {
"class_type": "SamplerCustomAdvanced",
"inputs": {
"guider": [
"994:990:830",
0
],
"latent_image": [
"994:990:829",
0
],
"noise": [
"994:990:823",
0
],
"sampler": [
"994:990:953",
0
],
"sigmas": [
"994:990:954",
0
]
},
"_meta": {
"title": "SamplerCustomAdvanced"
}
},
"994:990:829": {
"class_type": "LTXVConcatAVLatent",
"inputs": {
"audio_latent": [
"994:990:859",
1
],
"video_latent": [
"994:990:896",
2
]
},
"_meta": {
"title": "Concat AV Latent"
}
},
"994:990:830": {
"class_type": "CFGGuider",
"inputs": {
"cfg": 1,
"model": [
"994:933",
0
],
"negative": [
"994:990:896",
1
],
"positive": [
"994:990:896",
0
]
},
"_meta": {
"title": "CFG Guider"
}
},
"994:990:831": {
"class_type": "LTXVSeparateAVLatent",
"inputs": {
"av_latent": [
"994:990:827",
0
]
},
"_meta": {
"title": "Separate AV Latent"
}
},
"994:990:832": {
"class_type": "LTXVCropGuides",
"inputs": {
"latent": [
"994:990:831",
0
],
"negative": [
"994:990:896",
1
],
"positive": [
"994:990:896",
0
]
},
"_meta": {
"title": "LTXVCropGuides"
}
},
"994:990:843": {
"class_type": "GetImageRangeFromBatch",
"inputs": {
"images": [
"994:989:987",
2
],
"num_frames": 25,
"start_index": -1
},
"_meta": {
"title": "Get Image or Mask Range From Batch"
}
},
"994:990:859": {
"class_type": "LTXVAudioVideoMask",
"inputs": {
"audio_end_time": [
"994:857",
0
],
"audio_latent": [
"994:990:824",
0
],
"audio_start_time": [
"994:857",
0
],
"existing_mask_mode": "add",
"max_length": "pad",
"video_end_time": [
"994:857",
0
],
"video_fps": [
"994:1001",
0
],
"video_latent": [
"994:990:900",
0
],
"video_start_time": 1
},
"_meta": {
"title": "LTXVAudioVideoMask"
}
},
"994:990:862": {
"class_type": "TrimAudioDuration",
"inputs": {
"audio": [
"994:890",
3
],
"duration": [
"994:857",
0
],
"start_index": 36
},
"_meta": {
"title": "Trim Audio Duration"
}
},
"994:990:896": {
"class_type": "LTXVAddGuideMulti",
"inputs": {
"latent": [
"994:990:859",
0
],
"negative": [
"994:927",
1
],
"num_guides": "2",
"num_guides.frame_idx_1": 0,
"num_guides.frame_idx_2": -1,
"num_guides.image_1": [
"994:923",
0
],
"num_guides.image_2": [
"994:923",
0
],
"num_guides.strength_1": 1,
"num_guides.strength_2": 0.5,
"positive": [
"994:927",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "LTXVAddGuideMulti"
}
},
"994:990:900": {
"class_type": "VAEEncode",
"inputs": {
"pixels": [
"994:990:843",
0
],
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Encode"
}
},
"994:990:901": {
"class_type": "VAEDecodeTiled",
"inputs": {
"overlap": 64,
"samples": [
"994:990:832",
2
],
"temporal_overlap": 16,
"temporal_size": 256,
"tile_size": 1024,
"vae": [
"994:904",
0
]
},
"_meta": {
"title": "VAE Decode (Tiled)"
}
},
"994:990:953": {
"class_type": "KSamplerSelect",
"inputs": {
"sampler_name": "lcm"
},
"_meta": {
"title": "KSamplerSelect"
}
},
"994:990:954": {
"class_type": "LTXVScheduler",
"inputs": {
"base_shift": 0.95,
"latent": [
"994:842",
0
],
"max_shift": 2.05,
"steps": 8,
"stretch": True,
"terminal": 0.1
},
"_meta": {
"title": "LTXVScheduler"
}
},
"994:990:987": {
"class_type": "ImageBatchExtendWithOverlap",
"inputs": {
"new_images": [
"994:990:901",
0
],
"overlap": 25,
"overlap_mode": "filmic_crossfade",
"overlap_side": "source",
"source_images": [
"994:989:987",
2
]
},
"_meta": {
"title": "Image Batch Extend With Overlap"
}
},
"994:995": {
"class_type": "CreateVideo",
"inputs": {
"audio": [
"994:892",
0
],
"bit_depth": "auto",
"codec": "none",
"color_space": "sRGB",
"fps": [
"994:1001",
0
],
"images": [
"994:990:987",
2
]
},
"_meta": {
"title": "Create Video"
}
}
})
# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)Questions & answers
If your output is black, stop the run immediately and reduce the resolution of your inputs. This can help resolve the issue.
The workflow supports common audio formats like MP3 and WAV. Ensure your audio file is in a compatible format before uploading.
The LTX-2 model is experimental and best suited for creative projects where variability is acceptable. It's not recommended for precise or commercial applications.
Ensure that your audio file is clear and well-defined. Adjust the settings in the 'comfyui-kjnodes' to fine-tune synchronization.