> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# LTXVFreezeLatent - ComfyUI Built-in Node Documentation

> The LTXV Freeze Latent node sets the noise mask of a latent to zero, which keeps that latent clean and unchanged while sampling runs.

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    |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/LTXVFreezeLatent/en.md)

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