LTXVFreezeLatent - ComfyUI Built-in Node Documentation - ComfyUI

The LTXV Freeze Latent node sets the noise mask of a latent to zero, which keeps that latent clean and unchanged while sampling runs. It works on both video and audio latents, so a latent can be frozen before it is concatenated with others or when it should not be denoised at all.

Inputs

Parameter	Description	Data Type	Required	Range
`latent`	Video or audio latent to freeze. Audio is 4D; video is 5D.	LATENT	Yes	N/A

Constraints

The latent must contain a plain tensor. A concatenated audio-video latent is not accepted; it must be split with the Separate AV Latent node first.
Only 4D latents (audio) and 5D latents (video) are supported. Any other shape causes an error.
The generated noise mask is created with zeros using the same device as the input tensor. For video latents the mask has shape (batch, 1, frames, 1, 1); for audio latents it has shape (batch, 1, frames, 1).

Outputs

Output Name	Description	Data Type
`latent`	The input latent with an added noise mask of zeros, so it remains clean during sampling.	LATENT

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