> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-docs-partner-nodes-consolidate.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# LTXVReferenceAudio - ComfyUI Built-in Node Documentation

> LTXV Reference Audio transfers the voice identity of a speaker from a reference audio clip to generated audio.

LTXV Reference Audio transfers the voice identity of a speaker from a reference audio clip to generated audio. It encodes the reference audio into the conditioning and optionally patches the model with identity guidance, which runs an extra forward pass without the reference each step to amplify the speaker identity effect.

## Inputs

| Parameter                 | Description                                                                                                                                                            | Data Type    | Required | Range       |
| ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | -------- | ----------- |
| `model`                   | The model to be patched with identity guidance.                                                                                                                        | MODEL        | Yes      | -           |
| `positive`                | The positive conditioning input.                                                                                                                                       | CONDITIONING | Yes      | -           |
| `negative`                | The negative conditioning input.                                                                                                                                       | CONDITIONING | Yes      | -           |
| `reference_audio`         | Reference audio clip whose speaker identity to transfer. \~5 seconds recommended (training duration). Shorter or longer clips may degrade voice identity transfer.     | AUDIO        | Yes      | -           |
| `audio_vae`               | LTXV Audio VAE for encoding.                                                                                                                                           | VAE          | Yes      | -           |
| `identity_guidance_scale` | Strength of identity guidance. Runs an extra forward pass without reference each step to amplify speaker identity. Set to 0 to disable (no extra pass). (default: 3.0) | FLOAT        | Yes      | 0.0 - 100.0 |
| `start_percent`           | Start of the sigma range where identity guidance is active. (default: 0.0)                                                                                             | FLOAT        | Yes      | 0.0 - 1.0   |
| `end_percent`             | End of the sigma range where identity guidance is active. (default: 1.0)                                                                                               | FLOAT        | Yes      | 0.0 - 1.0   |

Note: Identity guidance is only applied when `identity_guidance_scale` is greater than 0 and the current sampling step is within the range defined by `start_percent` and `end_percent`. The reference audio is resampled to the audio VAE's sample rate if the two differ.

## Outputs

| Output Name | Description                                                                 | Data Type    |
| ----------- | --------------------------------------------------------------------------- | ------------ |
| `model`     | The model patched with the identity guidance function.                      | MODEL        |
| `positive`  | The positive conditioning, now containing the encoded reference audio data. | CONDITIONING |
| `negative`  | The negative conditioning, now containing the encoded reference audio data. | CONDITIONING |

> 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/LTXVReferenceAudio/en.md)

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